Publikationen
Hier finden Sie Buchveröffentlichungen, Dissertationen, Patente, Zeitschriften- und Konferenzpublikationen.
2024
BÜCHER
PATENTE
Falldorf, C; Müller, A F; Bergmann, R B; Rukin, I
Verfahren und Vorrichtung zum Wiedergeben von holografischen Bildern
Quelle: Offenlegungsschrift DE 10 2023 134 338A1 (2024)
Kügler, H; Woizeschke, P; Seefeld, T
Quelle: Patentschrift DE 10 2015 115 183 B4 (2024)
PUBLIKATIONEN
Agour, M; Falldorf, C; Bergmann R B
Lensless Depth Discrimination Based on Speckle Contrast in Holographic Imaging
Quelle: 7th International Conference on Optics, Photonics and Lasers (OPAL' 2024) Palma de Mallorca (7th International Conference on Optics, Photonics and Lasers (OPAL' 2024) 15-17 May 2024, Palma de Mallorca (Balearic Islands), Spain (ISBN: 978-84-09-61372-4)
Agour, M; Falldorf, C; Bergmann R B
Extended-Aperture Shape Measurements Using Spatially Partially Coherent Illumination (ExASPICE)
Quelle: Sensors (2024) 24, 3072. https://doi.org/10.3390/s24103072
Agour, M; Thiemicke, F; Müller, A F; Bergmann, R B; Falldorf, C
Lensless multi-spectral holographic interferometry for optical inspection
Quelle: Frontiers in Photonics (DOI 10.3389/fphot.2024.1416347)
Bohlen, A; Seefeld, T
Influence of the Inner Roughness of Powder Channels on the Powder Propagation Behavior in Laser Metal Deposition
Quelle: Journal of Laser Applications 36, 042007 (2024); doi: 10.2351/7.0001570
Bohlen, A; Seefeld, T
Adaptive powder nozzle setup for enhanced efficiency in laser metal deposition
Quelle: Journal of Laser Applications 36 (2024) 012017-1-11; doi: 10.2351/7.0001183
Bouraoui, Y; Rathmann, L; Niehaves, C; Mikulewitsch, M; Fischer, A
Material removal in laser chemical processing with modulated laser power
Quelle: Journal of Laser Applications 36 (2024) 012013-1-8; doi: 10.2351/7.0001109
Falldorf, C; Müller A F; Bergmann, R B
Beyond Lenses: Unlocking the potential of Digital Holography for Optical Inspection
Quelle: 7th International Conference on Optics, Photonics and Lasers (OPAL' 2024) Palma de Mallorca (7th International Conference on Optics, Photonics and Lasers (OPAL' 2024) 15-17 May 2024, Palma de Mallorca (Balearic Islands), Spain (ISBN: 978-84-09-61372-4)
Gutiérrez-Canas Pazos, C B; Falldorf, C; Bergmann, R B
Characterization of form deviations on technical surfaces through structure function analysis
Quelle: DGaO Proceedings 2024. ISSN: 1614-8436 – urn:nbn:de:0287-2024-A033-9
Henze, I; Mattulat, T
Metal vapor‑induced arc instability in stationary TIG‑welding
Quelle: The International Journal of Advanced Manufacturing Technology (2024) https://doi.org/10.1007/s00170-024-13700-x
Krämer, A; Henze, I; Pordzik, R; Radel, T
Inline detection of process anomalies during laser deep penetration welding of hidden T-joints
Quelle:13th CIRP Conference on Photonic Technologies (LANE 2024), eds.: M. Schmidt, C.B. Arnold, K. Wudy. Elsevier B.V. [Volume 124] (2024) 526 - 529, https://doi.org/10.1016/j.procir.2024.08.167
Langebeck, A; Bohlen, A; Seefeld, T, Zhang, X; Rebelo Kornmeier, J; Hofmann, M; Shaba, S; Fritzen, F
Untersuchung und Vorhersage thermisch induzierter Eigenspannungen in MMC-Verschleißschutzschichten nach dem Laserdispergieren
Quelle: Schweißen und Schneiden 76, 9 (2024) 62-71
Langstädler, L; Beckschwarte, B; Valentino, T; Radel, T
Strain rates in high velocity forming of foils
Quelle: Material Forming - ESAFORM 2024. Materials Research Proceedings 41 (2024) 1527-1535 (https://doi.org/10.21741/9781644903131-169)
Lu, Y; Bouraoui, Y; ; Niehaves; Fischer, C; Radel, T
Laser power modulation between disturbed and undisturbed material removal regime in laser chemical processing
Quelle: Int J Adv Manuf Technol 135, 3983–3989 (2024). https://doi.org/10.1007/s00170-024-14728-9
Mattulat, T
Understanding the coaxial optical coherence tomography signal during the laser welding of hidden T-joints
Quelle: Journal of Laser Applications 36 (2024) 012003, doi: 10.2351/7.0001157
Mitura, N; Müller, A F; Bergmann, R B; Falldorf, C; Ehret, G
Der Einfluss der Wellenvektorunsicherheit auf die Rekonstruktion der Oberflächenform bei einer MArS-Messung
Quelle: DGaO-Proceedings 2024. ISSN: 1614-8436 - urn:nbn:de:0287-2024-A007-4
Möbus, M; Pordzik, R; Krämer, A; Mattulat, T
Process comparison of laser deep penetration welding in pure nickel using blue and infrared wavelengths
Quelle: Welding in the World (2024) https://doi.org/10.1007/s40194-024-01713-9
Möbus, M; Pordzik, R; Seefeld, T
Influence of intensity distributions on the process dynamics during laser deep penetration welding of pure nickel with a flexible ring mode laser source
Quelle: J. Laser Appl. 36, 042073 (2024) https://doi.org/10.2351/7.0001529
Müller, A F; Bergmann, R B; Falldorf, C
High resolution lensless microscopy based on Fresnel propagation
Quelle: Optical Engineering 63/11 (2024) 111805-1-12 (doi: 10.1117/1.OE.63.11.111805)
Müller, A F; Bergmann, R B; Falldorf, C
Lensless microscopy using a virtual imaging approach
Quelle: 7th International Conference on Optics, Photonics and Lasers (OPAL' 2024) . 15-17 May 2024, Palma de Mallorca (Balearic Islands), Spain (doi: 10.13140/RG.2.2.20925.27360)
Müller, A F; Bergmann, R B; Falldorf, C
High resolution lensless microscopy based on Fresnel propagation
Quelle: Optical Engineering, Vol. 63, Issue 11, 111805, (2024), https://doi.org/10.1117/1.OE.63.11.111805
Müller, A F; Gutiérrez-Canas Pazos, B; Mitura, N; Ehret, G; Falldorf, C; Bergmann, R B
Calibrating multi-spot illumination for asphere metrology using shear-interferometry
Quelle: Proc. SPIE 13241, Optical Metrology and Inspection for Industrial Applications XI, 132410N (2024), https://doi.org/10.1117/12.3037594
Müller, S; Krämer, A; Goossens, N; Bendlin, T; Mattulat, T
Influence of varying volume energy densities on the magnetic properties of additively manufactured Ni50Fe50
Quelle: Progress in Additive Manufactioring (2024) https://doi.org/10.1007/s40964-024-00902-8
Müller, S; Radel, T
Impact of fume on two-channel-pyrometric temperature measurements and process stability during laser powder bed fusion
Quelle: Procedia CIRP, Volume 124, 2024, Pages 287-290, ISSN 2212-8271, https://doi.org/10.1016/j.procir.2024.08.119
Müller, S; Radel, T
Ortsaufgelöste Temperaturregelung beim Laserstrahlschmelzen im Pulverbett
Quelle: Schweißen und Schneiden 76, 10 (2024) 60-61
Müller, S, Radel, T
Temperature map based process control for laser powder bed fusion
Quelle: Book of Abstracts MSE24 (2024) 686
Muniraj, I; Falldorf, C; Agour, M
Editorial: Advances in digital holographic microscopy and applications
Quelle: Editorial: Advances in digital holographic microscopy and applications. Front. Photonics 5:1502043
https://doi.org/10.3389/fphot.2024.1502043
Pordzik, R; Seefeld, T
Identifying the direction of weld path deviations in laser deep penetration welding of hidden T-joints by means of OCT
Quelle: Journal of Laser Applications (ICALEO 2024) paper no. 0877-1306-000092
Radel, T; Müller, S
Ortsaufgelöste Temperaturregelung beim Laserstrahlschmelzen im Pulverbett
Quelle: Schweißen und Schneiden 76, 10 (2024) 60-61
Rathmann, L; Radel, T
Laser cleaning of insect residue without surface alteration
Quelle: PhotonicsViews 21, 4 (2024) 2-5 (https://doi.org/10.1002/phvs.202400025)
Sperling, Y; Bergmann, R B
Laser-tracker-based reference measurement for geometric calibration of phase-measuring deflectometry with active display registration
Quelle: Journal of Sensors and Sensor Systems (JSSS) 13, 1–7 (2024) https://doi.org/10.5194/jsss-13-1-2024
Sperling, Y; Bergmann, R B
Phase measuring deflectometry with monoscopic active display registration
Quelle: Proc. SPIE 12997, Optics and Photonics for Advanced Dimensional Metrology III; 1299713 (2024) https://doi.org/10.1117/12.3015111
Thiemicke, F; Falldorf, C; Bergmann, R B
Fabrication of positionable free-standing microstructures for applications in near-field microscopy
Quelle: DGaO Proceedings 2024 – http://www.dgao-proceedings.de – ISSN: 1614-8436 – urn:nbn:de:0287-2024-B013-4
Volpp, J; Sato, Y; Tsukamoto, M; Rathmann, L; Möller M; Clark, S; Fezzaa, K; Radel, T; Klingbeil, K
The surface tension of boiling steel surfaces
Quelle: Results in Materials 22 (2024) 100583 (https://doi.org/10.1016/j.rinma.2024.100583)
Warneke, P; Bohlen, A; Seefeld, T
Texturing skin-pass rolls by high-speed laser melt injection, laser ablation, and electrolytic etching
Quelle: Journal of Laser Applications 36 (2024) 012011-1-9; doi: 10.2351/7.0001149
Warneke, P; Bohlen, A; Seefeld, T
High-Speed Laser melt Injection for Reinforcing Skin-Pass Rolls
Quelle: International Thermal Spray Conference and Exhibition (ITSC 2024) 409-417. DVS Media GmbH
Warneke, P; Westermeyer, L; Bohlen, A; Seefeld, T
Influencing the Powder Particle Transport in High-Speed Laser Melt Injection
Quelle: J. Laser Appl. 36 (2024) https://doi.org/10.2351/7.0001554
BÜCHER
PATENTE
Falldorf, C; Agour, M, Bergmann, R B
Anzeigeeinheit zur dreidimensionalen Wiedergabe, Verfahren zur holografischen Wiedergabe und Hologramm eines bewegten Objektes
Quelle: Patentschrift DE 10 2018 115 785 B4 (2023)
Thomy, C; Tyralla, D; Schnick, M
Kamera zum Bestimmen eines 2D-Wärmebilds sowie System und Prozessregeleinrichtung
Quelle: Patentschrift DE 10 2018 133 518 B4 (2023)
Woizeschke, P; Radel, T; Vollertsen, F
Verfahren zum strahlbasierten Fügen von metallischen Grundwerkstoffen
Quelle: Patentschrift DE 10 2017 100 497 B4 (2023)
PUBLIKATIONEN
Agour, M; Falldorf, C; Bergmann, R B
Improved 3D form profiler based on extending illumination aperture
Quelle: Optical Measurement Systems for Industrial Inspection XIII (2023), ed. by Peter Lehmann. Proc. of SPIE Vol. 12618, 126180T (2023) SPIE · 0277-786X, doi: 10.1117/12.2673783
Ahlers, T; Pordzik, R; Mattulat, T
Approaches for automatic detection of mispositioning during laser welding in hidden T-joints using optical coherence tomography
Quelle: Tagungsband 13. Mittweidaer Lasertagung, Scientific Reports, Journal of the University of Applied Sciences Mittweida, Nr. 3 (2023) ISSN 1437-7624
Bartsch, J; Müller, S; Mattulat, T; Bergmann, R B
Hochpräzises, dreidimensionales Erfassen des schichtweisen Lagenaufbaus beim selektiven Laserstrahlschmelzen mittels Streifenprojektion
Quelle: Schweißen und Schneiden 75, 3 (2023) 160-165
Bergmann, R B; Falldorf, C; Garcia-Ortiz, A; Müller, A F; Agour, A; Bockelmann, C
The coherence function for optical metrology: A new paradigm and the role of information theory and compressed sensing
Quelle: Proc. SPIE 12619, Modeling Aspects in Optical Metrology IX, 1261902 (2023) doi 10.1117/12.2675922
Bohlen, A; Langebeck, A; Seefeld, T
Temperature and distortion in laser melt injection of MMC wear-resistant coatings in a copper beryllium alloy
Quelle: NOLAMP- Nordic Laser Materials Processing Conference (19TH-NOLAMP-2023). IOP Conference Series: Materials Science and Engineering 1296 (2023) 12034. DOI: 10.1088/1757-899X/1296/1/012034
Bohlen, A; Tyralla, D; Seefeld, T
Characterization method for different powder nozzle types used in laser metal deposition
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Diegel, C; Mattulat, T; Schricker, K; Schmidt, L; Seefeld, T; Bergmann, J P; Woizeschke, P
Interaction between Local Shielding Gas Supply and Laser Spot Size on Spatter Formation in Laser Beam Welding of AISI 304
Quelle: pplied Sciences 13 (2023) 10507 (https://doi.org/10.3390/app131810507)
Falldorf, C; Thiemicke, F; Müller, A F; Agour M; Bergmann, R B
Flash-profilometry: fullfield lensless acquisition of spectral holograms for coherence scanning profilometry
Quelle: Optics Express 31, 17 (2023) 27494 (doi.org/10.1364/OE.493711)
Faue, P; Rathmann, L; Möller, M; Hassan, M; Clark, S, Fezzaa, K; Klingbeil, K; Richter, B; Volpp, J; Radel, T; Pfefferkorn, F E
High-speed X-ray study of process dynamics caused by surface features during continuous-wave laser polishing
Quelle: CIRP Annals Manufacturing Technology 72 (2023) 201-204 (doi.org/10.1016/j.cirp.2023.04.026)
Halisch, C; Milcke B; Radel, T; Rentsch, R; Seefeld, T
Influence of oxygen content in the shielding gas chamber on mechanical properties and macroscopic structure of Ti-6Al-4V during wire arc additive manufacturing
Quelle: Int J Adv Manuf Technol 124 (2023) 1065–1076 (doi.org/10.1007/s00170-022-10214-2)
Hildinger, P; Seefeld, T; Bohlen, A
Characterization of optical emissions during laser metal deposition for the implementation of an in-process powder stream monitoring
Quelle: Journal of Laser Applications 35 (2023) 042048-1-6 (doi: 10.2351/7.0001161)
Karimi, J; Bohlen, A; Komboj, N; Seefeld, T
Automated Determination of Grain Features for Wire Arc Additive Manufacturing
Quelle: Journal of Materials Engineering and Performance (2023) doi.org/10.1007/s11665-023-08266-w
Krämer, A; Pordzik, R; Mattulat, T
Influence of the airborne sound sensor position on the detectability of acoustic emissions during deep penetration laser welding
Quelle: Tagungsband 13. Mittweidaer Lasertagung, Scientific Reports, Journal of the University of Applied Sciences Mittweida, Nr. 3 (2023) 57-62 (ISSN 1437-7624)
Langebeck, A; Bohlen, A; Seefeld, T
Laserdispergieren in ETP-Kupfer mit grünem Laser
Quelle: Laser Magazin 1 (2023) 8-10
Langebeck, A; Bohlen, A; Seefeld, T; Zhang, X; Rebelo Kornmeier, J; Hofmann, M; Sharba, S, Fritzen, F
Messen und Vorhersagen von thermisch induzierten Eigenspannungen in MMC-Verschleißschutzschichten nach dem Laserstrahldispergieren in Kupferwerkstoffen
Quelle: Proc. of the DVS CONGRESS 2023 Große Schweißtechnische Tagung DVS Campus. DVS Berichte 389. DVS Media GmbH, Düsseldorf (2023) 704-714
Lu, Y; Radel, T
Nitinol flanges fabricated by laser rod end melting and immediate flange processing
Quelle: The International Journal of Advanced Manufacturing Technology (2023) doi.org/10.1007/s00170-023-12137-y)
Lu, Y; Volpp, J; Radel, T
Feasibility study on laser rod end melting of stainless-steel microtubes
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Mikulewitsch, M; Boraoui, Y; Radel, T; Stöbener, D; Fischer A
Near-process Indirect Surface Geometry and Temperature Measurement for Laser Chemical Machining (LCM)
Quelle: Proc. of the Sensor and Measurements Science International Conference (SMSI 2023) 338-339 (DOI 10.5162/SMSI2023/P30)
Möbus, M; Woizeschke, P
Keyhole‑in‑keyhole formation by adding a coaxially superimposed single‑mode laser beam in disk laser deep penetration welding
Quelle: Welding in the World (2023) doi.org/10.1007/s40194-023-01484-9
Müller, S; Pordzik, R; Mattulat, T
Investigation on the correlations between heat accumulations and actual part defects during laser powder bed fusion using heat maps
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Ramoliya, M; Bohlen, A; Seefeld, T
Distribution of SFTC, NbC, and Cr3C2 particles in aluminium bronze by laser melt injection
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Pordzik, R; Ahlers, T; Mattulat, T
Enhancement of weld depth analysis in laser welding by extension of the oct data scope
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Pordzik, R; Mattulat, T; Woizeschke, P
Frontal pyrometric snapshot measurements of the keyhole wall temperature in laser welding of pure aluminium
Quelle: Welding in the World (2023) https://doi.org/10.1007/s40194-023-01636-x
Schinderling, A; Bohlen, A; Seefeld, T
In-process monitoring and measurement of track geometry for laser metal deposition with laser triangulation
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.)
Schinderling, A; Bohlen, A; Seefeld, T; Falldorf, H
In-process monitoring of track geometry as a control approach for laser metal deposition
Quelle: NOLAMP- Nordic Laser Materials Processing Conference (19TH-NOLAMP-2023). IOP Conference Series: Materials Science and Engineering 1296 (2023) 12010. DOI: 10.1088/1757-899X/1296/1/012010
Sperling, Y; Bergmann, R B
Active Display Registration in Phase Measuring Deflectometry
Quelle: Proc. of Sensor and Measurement Science International Conference (SMSI 2023), 49-50 (doi: 10.5162/SMSI2023/A3.3)
Stephen, A; Valentino, T, Radel, T; Vollertsen, F
So lässt sich die Biegewinkelstreuung reduzieren
Quelle: Blechonline (2023) https://www.blechonline.de/so-laesst-sich-die-biegewinkelstreuung-reduzieren
Stephen, A; Valentino, T; Radel, T; Vollertsen, F
3D-Präzisionsgitter mit minimalen Stegbreiten
Quelle: Mikroproduktion 04 (2023) 36-37
Tyralla, D; Seefeld, T
Spatially resolved temperature field measurement in powder bed fusion for online detection of porosity
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) (2023)
Valentino, T; Stephen, A; Radel, T; Vollertsen, F
Applicability of a laser pre-treatment for a robust subsequent bending of thin sheet metal
Quelle: CIRP Journal of Manufacturing Science and Technology 44 (2023) 45-54
Warneke, P; Bohlen, A; Seefeld, T
Influence of the process speed in laser melt injection for reinforcing skin-pass rolls
Quelle: Journal of Laser Applications 35 (2023) 012009-1-89, doi: 10.2351/7.0000781 (online)
Warneke, P; Hildinger, P; Bohlen, A; Seefeld, T
Reinforcing cold working steel by high-speed laser melt injection
Quelle: Proc. of Lasers in Manufacturing Conference 2023 (LiM 2023). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) (2023)
Zhang, X; Kornmeier, J; Hofmann, M; Langebeck, A; Alameddin, S; Alesso, R P; Fritzen, F; Bunn, J, Cabeza, S
Residual stresses in Cu matrix composite surface deposits after laser melt injection
Quelle: Strain (2023) doi.org/10.1111/str.12457
2022
BÜCHER
Eckert, S
Laser-Induced Thermochemical Polishing of Metals
Quelle: Strahltechnik Bd. 75, Hrsg. F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2022)
Seefeld, T; Radel, T; Mattulat, T (Eds.)
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum
Strahltechnik Band 76. BIAS Verlag Bremen (2022) online
PATENTE
Bergmann, R B; Szczesny, M
System und Verfahren zur Bestimmung einer Schweiss- oder Lötgeschwindigkeit
Quelle: EP 3 663 030 B1 (2022)
Woizeschke, P; Schultz, V
Verfahren zum Verformen von Material mittels Laserstrahl
Quelle: Patentschrift DE 10 2017 119 508 B4 (2022)
PUBLIKATIONEN
Agour, M; Falldorf, C; Taleb, F; Castro-Camus, E; Koch, M; Bergmann, R B
Terahertz refernceless wavefront sensing by means of computational shear-interferometry
Quelle: Optics Express 30, 5 (2022) 7068-7081
Agour, M; Falldorf, C; Taleb, F; Castro-Camus, E; Koch, M; Bergmann, R B
Characterization of terahertz wavefront aberrations using computational shear-interferometry
Quelle: Optical Engineering 61, 11 (2022) 114102-1-11
Agour, M; Falldorf, C; Taleb, F; Koch, M; Bergmann, R B; Castro-Camus, E
Chocolate inspection by means of phase-contrast imaging using multiple-plane terahertz phase retrieval
Quelle: Optics Letters 47, 13 (2022) 3283-3286
Agour, M; Falldorf, C; Taleb, F; Castro-Camus, E; Koch, M; Bergmann, R B
Shear interferometry for terahertz wavefront sensing
Quelle: Proc. SPIE Photonics Europe 2022, Strasbourg/France. SPIE Terahertz Photonics II (2022) 12134 (doi:10.1117/12.2621696)
Bartsch, J; Müller, S; Mattulat, T; Woizeschke, P; Bergmann, R B
Hochpräzises, dimensionelles Erfassen des schichtweisen Lagenaufbaus beim selektiven Laserstrahlschmelzen mittels Streifenprojektion
Quelle: DVS CONGRESS - Große Schweißtechnische Tagung. DVS Berichte Bd. 382. DVS Media GmbH, Düsseldorf (2022) 721-729
Bergmann, R B
Optische In‐Prozess‐Messung: Konzepte für präzise, schnelle und robuste optische Messtechnik für komplexe Messsituationen
Quelle: DVS-Berichte 384. DVS Media GmbH, Düsseldorf (2022) 10 (Kurzfassung) ISBN 978-3-96144-208-9)
Bergmann, R B; Fischer, A; Bockelmann, C; Dekorsy, A; Garcia-Ortiz, A; Falldorf, C
The coherence function and its information content for optical metrology
Quelle: tm – Technisches Messen 89, 6 (2022) 397-412
Bohlen, A; Seefeld, T; Haghshenas, A; Groll, R
Characterization of the powder stream propagation behavior of a discrete coaxial nozzle for Laser Metal Deposition
Quelle: Journal of Laser Applications 34 (2022) 42048. DOI: 10.2351/7.0000775 (online)
Bohlen, A; Tyralla, D; Seefeld, T
Influence of powder feed parameters on the powder stream in laser metal deposition (LMD) by high-speed and high-resolution imaging
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum. Eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS Verlag Bremen (2022) 1-6 (online)
Falldorf, C
Exploring the coherence function for optical metrology and beyond
Quelle: Proc. SPIE Vol. 12137. SPIE Digital Library (2022) 1213709-1-9, doi: 10.1117/12.2624481
Falldorf, C; Rukin, I; Müller A F; Kroker, S; Bergmann, R B
Functional pixels: a pathway towards true holographic displays using today’s display technology
Quelle: Optics Express 30, 26 (2022) 47528, doi.org/10.1364/OE.474589
Faue, P; Beste, L-H; Richter, B; Agrawal, A; Klingbeil, K; Thoma, D; Radel, T, Pfefferkorn, F.E
Influence of laser polishing on fatigue life of conventionally machined and laser powder bed fusion 316L stainless steel
Quelle: Manufacturing Letters 33 (2022) 670-677
Fischer, A; Bergmann, R B
Multidimensionale optische Messtechnik
Quelle: TM– Technisches Messen 89, 6 (2022) 395-396
Haghshenas, A; Bohlen, A; Tyralla, D; Groll, R
The relevance of wall roughness modeling for simulation of powder flows in laser metal deposition nozzles
Quelle: The International Journal of Advanced Manufacturing Technology 123 (2022) 1441-1458 (online)
Hellenbrand, G, Lenz, B; Stephen, A; Radel, T; Mevissen, D; Brecher, C
Manufacturing of Crowned Spline-Joints with Optimized Surface Treatments for Aerospace Applications
Quelle: MIC Procedia (2022) 059-065
Henze, I; Mattulat, T; Woizeschke, P
Möglichkeit zur experimentellen Untersuchung des Einflusses von Metalldampf auf einen WIG-Lichtbogen
Quelle: Schweißen und Schneiden 74, 1-2 (2022) 48-49
Henze, I; Pordzik, R; Marben, P; Mattulat, T
Industrial applicability of reflection-assisted laser beam brazing of ZM-coated steel
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 52-57 (online)
Henze, I, Woizeschke, P
Influence of the composition of separately laser‑generated metal vapor on arc stability
Quelle: The International Journal of Advanced Manufacturing Technology (2022) https://doi.org/10.1007/s00170-022-10708-z (online)
Karpuschewski; B; Kinner-Becker, T; Klink, A; Langenhorst, L; Mayer, J; Meyer, D; Radel, T; Reese, S; Sölter, J
Process Signatures – Knowledge-based approach towards function-oriented manufacturing
Quelle: Proc. of the 6th CIRP Conference on Surface Integrity. Procedia CIRP 108 (2022) 624-629
Krause, C; Bergmann, R B; Falldorf, C
Statistical analysis of phase values for the determination of step heights in multi-wavelength interferometry
Quelle: tm – Technisches Messen 89, 6 (2022) 430–437
Langebeck, A; Bohlen, A
515 nm wavelength laser for laser melt injection of high-quality MMC in Cu-ETP
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum, eds. T. Seefeld, T. Radel, T. Mattulat, T. Strahltechnik Band 76, BIAS Verlag Bremen (2022), 11-14 (online)
Langebeck, A; Bohlen, A; Seefeld, T; Zhang, X, Rebelo Kornmeier, J; Hofmann, M; Alameddin, S; Alessio, R P; Fritzen, F
Laser melt injection of spherical fused tungsten carbide in Cu-ETP with 515 nm wavelength laser
Quelle: Proc. of the 12th CIRP Conference on Photonic Technologies (LANE 2022), eds.: M. Schmidt, F. Vollertsen, B.M. Colosimo. Procedia CIRP 111, Elsevier B.V. Amsterdam (2022) 726-731 (online)
Langebeck, A; Jahnke, C; Wünderlich, T; Hein, C; Bohlen, A; Uhlmann, E
Wolframschmelzcarbid-basierte MMC-Schichten für den industriellen Einsatz im Formenbau
Quelle: Schweißen und Schneiden 74, 1-2 (2022) 32-38
Lu, Y; Radel, T
Tensile strength of Nitinol flanges fabricated by laser rod end melting and immediate flange processing
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 18-22 (online)
Lu, Y; Radel, T
Tensile strength of Nitinol flanges produced by laser rod end melting and immediate flange processing in a not fully solidified state
Quelle: Proc. of the 12th CIRP Conference on Photonic Technologies (LANE 2022), eds.: M. Schmidt, F. Vollertsen, B.M. Colosimo. Procedia CIRP 111, Elsevier B.V. Amsterdam (2022) 726-731 (online)
Möbus, M; Woizeschke, P; Mattulat, T
Prevention of coating-induced agglomerations within the weld seam during laser beam deep penetration welding of aluminium-silicon coated press-hardenened steel
Quelle: LAF 20222: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 47-51 (online)
Müller, A F; Falldorf, C; Agour, M; Lotzgeselle, M; Straub, A; Ehret, G; Bergmann, R B
Measurement of independent wave fields using Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) for aspheric and freeform surfaces
Quelle: 25th Congress of the International Commission for Optics (ICO) and 16th Conference of International Society on Optics Within Life Sciences (OWLS), Dresden
Müller, A F; Falldorf, C; Bergmann, R B
Approaching optical metrology with multiple light sources and compressive sensing
Quelle: Proc. of SPIE Photonics Europe 2022, Strasbourg/France. Optics and Photonics for Advanced Dimensional Metrology II (2022) 121370L (doi: 10.1117/12.2621647)
Müller, S; Mattulat, T; Woizeschke, P
Hybrid additive manufacturing with titanium powder and aluminum substrates via laser powder bed fusion
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 41-46 (online)
Pordzik, R; Mattulat, T
Introducing an algorithm for the automatic detection of interface posi-tions for flange joints based on laser triangulation measurements
Quelle: LAF 20222: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 58-64 (online)
Pordzik, R; Mattulat, T; Woizeschke, P
Effects of reduced ambient pressure on the OCT-based weld depth measurement signal in laser welding of aluminum and steel
Quelle: Proc. of the 12th CIRP Conference on Photonic Technologies (LANE 2022), eds.: M. Schmidt, F. Vollertsen, B.M. Colosimo. Procedia CIRP 111, Elsevier B.V. Amsterdam (2022) 541-546 (online)
Radel, T; Seefeld, T; Bohlen, A; Stephen, A; Mattulat, T
Robuste Laserprozesse im Kontext der Energiewende
Quelle: Schweißen und Schneiden 74, 10 (2022) 690-692
Rathmann, L; Beste, L-H; Faue, P; Richter, B; Klingbeil, K; Pfefferkorn, F. E; Radel, T
Macro-pore free sub-surface PBF-LB/M components through laser polishing
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS Verlag Bremen (2022) 37-40 (online)
Rathmann, L; Hasselbruch, H; Mehner, A; Radel, T
On the combination of plasma nitrided surfaces and LIPSS
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 23-27 (online)
Rathmann, L; Radel, T
On the use of LIPSS in single- and multi-scale laser-structured tool surfaces under lubricated conditions
Quelle: Journal of Manufacturing Processes 77 (2022) 819-830 (online)
Rathmann, L; Rusche, T; Hasselbruch, H; Mehner, A, Radel, T
Friction and wear characterization of LIPSS and TiN/DLC variants
Quelle: Applied Surface Science 584 (2022) 152654 (online)
Richter, B; Radel, T; Pfefferkorn, F. E
Sensitivity of surface roughness to laser parameters used for polishing additively manufactured Co-Cr alloy
Quelle: Surface and Coatings Technology 451 (2022), 128872 (doi.org/10.1016/j.surfcoat.2022.128872)
Simons, M; Radel, T
Influence of electrolyte concentration on laser chemical machining
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS Verlag Bremen (2022) 32-35 (online)
Simons, M; Radel, T
Laser chemical machining with additive-increased electrolyte viscosity
Quelle: Proc. of the 23. International Symposium on Laser Precision Microfabrication (LPM 2022), Dresden (online)
Sperling, Y; Bartsch, J; Gauchan, S; Bergmann, R B
Extending vision ray calibration by determination of focus distances
Quelle: Optics Express 30, 26 (2022) 47801, doi.org/10.1364/OE.475420
Stephen, A; Lenz, B; Hellenbrand, G
Laser micro structuring of multi-layer coatings on aircraft splines for optimization of the surface properties
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS-Verlag Bremen (2022) 28-31 (online)
Stephen, A; Tyralla, D; Radel, T; Vollertsen, F
Bohrzeiten beim Laserbohren von Saugflächen
Quelle: VDI-Z 164, 3 (2022) 40-42
Valentino, T; Jägle, E; Radel, T
Materials Characterization at High Strain Rates
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum (LAF’22), eds. T. Seefeld, T. Radel, T. Mattulat. Strahltechnik Band 76, BIAS Verlag Bremen (2022) 15-17 (online)
Valentino, T; Radel, T
Identification of Characteristic Values in Impulse‑Based Processes Using Small Specimens
Quelle: Nanomanufacturing and Metrology (2022) https://doi.org/10.1007/s41871-022-00142-w
Warneke, P; Bohlen, A; Seefeld, T
Improving the wear resistance of copper tools for pressure die casting by laser melt injection
Quelle: Production Engineering (2022) https://doi.org/10.1007/s11740-022-01164-5 (online)
Warneke, P; Hildinger, P; Bohlen, A; Seefeld, T
High-speed laser melt injection for wear protection of skin-pass rolls
Quelle: LAF 2022: Proceedings of the 12th Laser Applications Forum, Eds. T. Seefeld, T. Radel; T Mattulat. Strahltechnik Band 76, BIAS Verlag Bremen (2022) 7-10 (online)
Warneke, P; Langebeck, A; Bohlen, A; Seefeld, T
Laser melt injection for wear protection of molds and casting tools
Quelle: The mold & die journal 10, 1 (2022) 32-35
BÜCHER
Valentino, T
Nutzung laserinduzierter Stoßwellen zur Hochdurchsatz-Werkstoffprüfung
Quelle: Strahltechnik Bd 74, Hrsg. F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2021)
PUBLIKATIONEN
Agour, M; Falldorf, C; Taleb, F; Castro-Camus, E; Koch, M; Bergmann, R B
Quasi-optical components for the THz-regime: Fabrication and characterization
Quelle: Proc. of the 122. DGaO Proceedings 2021. ISSN: 1614-8436 – urn:nbn:de:0287-2021-P009-9
Bartsch, J
Measurement of High‐Precision Components - Robust digital holographic measurement system for production environments
Quelle: PhotonicsViews 18, S1 (2021) 8-9 (E-Special LAF 2020) doi.org/10.1002/phvs.202100016
Bartsch, J; Sperling, Y; Bergmann, R B
Efficient Vision Ray Calibration of multi-camera systems
Quelle: Opt. Express 29, 11 (2021) 17125-17139
Bartsch, J; Sperling. Y; Bergmann, R B
Qualification of holistic and generic camera-system calibration by Fringe Projection
Proc. of SPIE Vol. 11787, Automated Visual Inspection and Machine Vision IV (SPIE), eds: J. Beyerer, M. Heizmann, 117870G (2021) 109-118 (online) doi.org/10.1117/12.2592295
Beste; L-H; Schadewald, F; Radel, T; Richter, B; Faue, P; Pfefferkorn, F. E; Vollertsen, F
Increased Laser Polishing Rates of LPBF Components - High path overlaps to reduce surface features at laser polishing of LPBF
Quelle: PhotonicsViews 18, S1 (2021) 22-23 (E-Special LAF 2020) doi: 10.1002/phvs.202100009
Bergmann, R B; Bockelmann, C; Dekorsy, A; Rosenhahn, B; Falldorf, C
7D-Metrology: The coherence function as a solution to complex problems of optical metrology
Quelle: Proc. of the 122. Jahrestagung der DGaO, Bremen (2021) ISSN: 1614-8436 – urn:nbn:de: 0287-2021-H001-6
Bergmann, R B; Kalms, M; Falldorf, C
Optical In-Process Measurement: Concepts for Precise, Fast and Robust Optical Metrology for Complex Measurement Situations
Quelle: Applied Science 11 (2021) 10533 (doi.org/10.3390/app112210533)
Borchers, F; Clausen, B; Ehle, L; Eich, M; Epp, J; Frerichs, F; Hettig, M; Klink, A; Kohls, E, Lu, Y; Meyer, H; Rommes, B; Schneider, S; Strunk, R; Zielinski, T
The Influence of Former Process Steps on Changes in Hardness, Lattice and Micro Structure of AISI 4140 Due to Manufacturing Processes
Quelle: Metals 11 (2021) 1102, doi.org/10.3390/met11071102
Dörfert, R; Tyralla, D
Melt Pool Width Monitoring - In-situ measurement of the melt pool width in powder bed fusion processes
Quelle: PhotonicsViews 18, S1 (2021) 6-7 (E-Special LAF 2020) doi: 10.1002/phvs.202100015
Eckert, S; Vollertsen, F; Schupp, A; Zander, D; Rommes, B; Klink, A
Understanding the Influence of Chemical and Thermal Loads on the Productivity for Processing 42CrMo4 Steel and Titanium via Laser-Induced Thermochemical Machining
Quelle: Proc. of the 9th CIRP Conference on High Performance Cutting (HPC 2020). Procedia CIRP 101 (2021) 202-205, doi.org/10.1016/j.procir.2020.11.009
Falldorf, C; Agour, M; Bergmann, R B
Γ-Profilometry on rough surfaces
Quelle: Proc. of the 122. Jahrestagung der DGaO, Bremen (2021) ISSN: 1614-8436 – urn:nbn:de: 0287-2021-B020-0
Falldorf, C; Agour, M; Müller, A F; Bergmann, R B
Γ-profilometry: a new paradigm for precise optical metrology
Quelle: Optics Express 29, 22 (2021) 36100-36110 (doi.org/10.1364/OE.434510)
Frerichs, F; Lu, Y; Lübben, T; Radel, T
Process Signature for Laser Hardening
Quelle: Metals 11, 465 (2021) 1-21 (online) doi.org/10.3390/met11030465
Gauchan, S; Bartsch, J; Bergmann, R B
Vision threads – A novel approach to generic camera calibration
Quelle: Proc. of SPIE 11787, Automated Visual Inspection and Machine Vision IV, 117870H (2021); doi: 10.1117/12.2592296 (online)
Gauchan, S; Bartsch, J; Bergmann, R B
Sichtfäden - Ein neuer Ansatz zur generischen Kamerakalibrierung
Quelle: Proc. of the 122. Jahrestagung der DGaO, Bremen (2021) ISSN: 1614-8436 – urn:nbn:de: 0287-2021-B007-3
Halisch, C; Gaßmann, C; Seefeld, T
Investigating the Reproducibility of the Wire Arc Additive Manufacturing Process
Quelle: Advanced Materials Research 116 (2021) 95-104 (doi:10.4028/www.scientific.net/AMR.1161.95) online
Halisch, C; Radel, T; Tyralla, D; Seefeld, T
Online Monitoring in WAAM
Quelle: PhotonicsViews 18, S1 (2021) 2-3 (E-Special LAF 2020) doi.org/10.1002/phvs.202100005
Henze, I; Mattulat; T; Woizeschke, P
Effects of separately laser-induced metal vapor amounts on the stability of a TIG arc
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Henze, I; Woizeschke, P
Laser Keyhole Brazing - Energy-efficient brazing using the deep penetration effect in combination
with two-dimensional beam oscillation
Quelle: PhotonicsViews 18, S1 (2021) 30-31 ( E-Special LAF 2020) doi/abs/10.1002/phvs.202100013
Karwoth, B; Mattulat; T; Woizeschke, P
Occurrence of coating-related accumulations within the seam in laser beam deep penetration welding of aluminum-silicon coated press-hardened steels
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Karpuschewski, B; Lübben, T, Meinke, M; Eckert, S; Frerichs; F; Schneider, S; Klink, A; Langenhorst, L; Sölter, J
Comparison of Process Signatures for thermally dominated processes
Quelle: CIRP Journal of Manufacturing Science and Technology 35 (2021) 217-235
Krause, C; Falldorf, C; Bergmann, R B
Statistical evaluation process to measure step heights using multi-lambda shear interferometry
Proc. of the 122. Jahrestagung der DGaO, Bremen (2021) ISSN: 1614-8436 – urn:nbn:de: 0287-2021-B022-9
Langebeck, A
Hard Particle Reinforcement for Micro‐forming Tools - Hard particle reinforcement of microforming tools via laser melt injection for improved wear resistance
Quelle: PhotonicsViews 18, S1 (2021) 16-17 ( E-Special LAF 2020) doi.org/10.1002/phvs.202100018
Langebeck, A
Directed Energy Deposition with Aluminum Alloy - Directed energy deposition of high‐strength aluminum alloy with local hard particle reinforcement
Quelle: Photonics Views 18, S1 (2021) 14-15 (E-Special LAF 2020) doi.org/10.1002/phvs.202100004
Langebeck, A; Bohlen, A; Seefeld, T
Laser melt injection for homogenous particle distribution in copper materials
Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Lu, Y; Ehle, L; Richter, S; Radel, T
Influence of multi-pass laser hardening of normalized AISI 4140 on the grain size
Quelle: Surface & Coatings Technology 421 (2021) 127434 (online)
Lu, Y; Meyer, H; Radel, T
Influence of multi-pass laser hardening on residual stress and distortion
Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Lu, Y; Radel, T
Surface quality of laser rod end melted shape-memory Nitinol preforms
Quelle: Proc. Lasertagung Mittweida (2021), eds.: Hochschule Mittweida, Mittweida (2021) 43-47
Mattulat, T; Pordzik, R; Woizeschke, P
OCT-Einschweißtiefenüberwachung bei Unterdruck
Quelle: wt Werkstattstechnik 111, 11-12 (2021) 863-868
Mattulat, T; Woizeschke, P
Laserstrahllöten mit oszillierendem Kaltdraht zur Steigerung der Nahtqualität
Quelle: Schweißen und Schneiden 73, 4 (2021) 230-234
Mattulat, T; Woizeschke, P
Laser Brazing with Wire Oscillation - A new approach for increasing the optical seam edge quality
Quelle: PhotonicsViews 18, S1 (2021) 28-29 (E-Special LAF 2020) doi: 10.1002/phvs.202100012
Möbus, M; Mattulat, T; Woizeschke, P
Bearbeitungsoptik zur Untersuchung dreidimensionaler Spotverschiebungen zweier Laserstrahlen beim Laserstrahlschweißen
Quelle: Schweißen und Schneiden 73, 8 (2021) 550 - 551
Müller, A F; Gutiérrez-Canas Pazos, B; Bergmann, R B
Referenceless phase holography for displaying 3D scenes captured by digital holography
Quelle: Proc. of the 122. Jahrestagung der DGaO, Bremen (2021) ISSN: 1614-8436 – urn:nbn:de: 0287-2021-B003-7
Müller, A F; Rukin, I; Falldorf, C; Bergmann, R B
Multicolor Holographic Display of 3D Scenes Using Referenceless Phase Holography (RELPH)
Quelle: Photonics 8, 247 (2021) doi.org/10.3390/photonics8070247
Müller, S; Woizeschke, P
Feasibility of a laser powder bed fusion process for additive manufacturing of hybrid structures using aluminum-titanium powder-substrate pairings
Quelle: Additive Manufacturing 48 (2021) 102377 (online)
Müller,S; Woizeschke, P
Methodology for analyzing the influence of contact temperatures in laser beam brazing
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Pordzik, R; Woizeschke, P
Implementation of a Synchronized Multimethod Process Observation in Deep Penetration Laser Welding
Quelle: PhotonicsViews 18, S1 (2021) 26-27 (E-Special LAF 2020) doi: 10.1002/phvs.202100011
Prieske, M; Vollertsen, F
Picosecond-laser polishing of CVD-diamond coatings without graphite formation
Quelle: Materials Today: Proceedings 40 (2021) 1-4
Rathmann, L; Beste, L-H; Radel, T
Laser based process chain to use LIPSS on forming tools
Quelle: Surface and Coatings Technology 426 (2021) 127761 (doi.org/10.1016/j.surfcoat.2021.127761) online
Rathmann, L; Radel, T
LIPSS for metal forming tool
Quelle: PhotonicsViews 5 (2021) 14-15, DOI: 10.1002/phvs.202100055
Rathmann, L; Radel, T
Influence of laser hardening on laser induced periodic surface structures on steel substrates
Quelle: Proc. of the 18th Nordic Laser Materials Processing Conference (NOLAMP) IOP Conf. Series: Materials Science and Engineering 1135 (2021) 012024 (doi:10.1088/1757-899X/1135/1/012024)
Schupp, A; Pütz, R D; Beyss, O; Beste, L-H; Radel, T; Zander, D
Change of oxidation mechanisms by laser-induced thermo-chemical machined rim zone modifications of 42CrMo4
Quelle: Materials 14 (2021) 3910, doi.org/10.3390/ma14143910
Simons, M; Beste, L-H; Radel, T
Laserchemische µ-Bearbeitung von Inconel 718
Quelle: Mikroproduktion 10, 3 (2021) 26-27
Simons, M; Radel, T
Laser Chemical Machining with High Process Pressure - Increase of the removal rate in laser chemical machining by increasing
Quelle: PhotonicsViews 18, S1 (2021) 18-19 (E-Special LAF 2020) doi: 10.1002/phvs.202100003
Simons, M; Radel, T
Increasing the removal rate by increased process pressure during laser chemical machining
Quelle: International Congress on Applications of Lasers and Electro-Optics (ICALEO2021) paper no. 0548_0779_000011
Simons, M; Radel, T; Vollertsen, F
Extension of the Process Window in Laser Chemical Machining by Temperature‑Dependent Reduction of the Electrolyte Viscosity
Quelle: International Journal of Precision Engineering and Manufacturing (2021) 22:1461–1467 (doi.org/10.1007/s12541-021-00548-4)
Soriano, C; Arizaga, A; Ocana, R; Sanchez, M; Stephen A; Sanchez, R; Uriarte, L
Design of a high performance laser micro-drilling machine for the aeronautical sector
Quelle: Engineering DYNA Journal 96 (2021) 130-133
Stephen, A; Lenz, B; Mehner, A; Radel, T
Laser structuring of PVD multi-layer systems for wear reduction
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Stephen, A; Radel, T
Laser Structuring of PVD Multilayer Systems - Enhancement of tribological properties by generation of dimple arrays
Quelle: PhotonicsViews 18, S1 (2021) 24-25 (E-Special LAF 2020) doi.org/10.1002/phvs.202100010
Stephen, A; Tyralla, D; Radel, T; Vollertsen, F
Ermittlung der Bohrzeiten beim Laserstrahlbohren von Saugflächen zur Qualitätssicherung in der Luftfahrtindustrie
Quelle: WT-Werkstatttechnik 111, 11-12 (2021) 872 - 874
Thiemicke, F; Gesierich, A; Li, W; Falldorf, C; Bergmann, R B
Digital Holographic Measurement System - Robust digital holographic measurement system for production environments
Quelle: PhotonicsViews 18, S1 (2021) 4-5 (E-Special LAF 2020) doi.org/10.1002/phvs.202100007
Tyralla, D; Bohlen, A, Seefeld, T
Characterization of the powder jet in LMD processes
Quelle: PhotonicsViews Vol.18 (S1) (2021) 12-13 (E-Special LAF 2020)
doi:/ 10.1002/phvs.202100017
Tyralla, D; Seefeld, T
Thermal based process monitoring for laser powder bed fusion (LPBF)
Quelle: Proc. of Materials Science and Technology of Additive Manufacturing Conference 2019 (MSTAM19), eds: V. Ploshikhin, J.-P. Jürgens, M. Siewert. Advanced Materials Research, Vol. 1161 (2021) 123–130
Tyralla, D; Seefeld, T
Closed-Loop Control of Penetration Depth in Wire-Based Laser Cladding
Quelle: PhotonicsViews 18, S1 (2021) 12-13 (E-Special LAF 2020) doi.org/10.1002/phvs.202100006
Tyralla, D; Woizeschke, P; Seefeld, T
Spatially resolved melt pool monitoring for process characterization in laser powder bed fusion (LPBF)
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LIM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
Valentino, T
Analytical model to determine the relevant parameters governing the transferred momentum to spherical indenters by laser-induced shock waves
Quelle: Optics and Lasers in Engineering 145 (2021) 106670, doi: 10.1016/j.optlaseng.2021.106670 (online)
Valentino, T; Höhmann, M; Schünemann, K; Wentzler, J; Wünderlich, T; Radel, T; Vollertsen, F
Time-resolved force measurements to determine positioning tolerances for impulse-based indentations
Quelle: Lasers in Manufacturing and Materials Processing 140 (2021) doi.org/10.1007/s40516-021-00140-8
Valentino, T; Stephen, A; Radel, T
An Approach to Predict the Residual Stress-Depth-Profile of Thin Sheet Metal Processed by Laser Shock Peening Without Coating
Quelle: Proc. of the 18th Nordic Laser Materials Processing Conference (NOLAMP) IOP Conf. Series: Materials Science and Engineering 1135 (2021) 012025 (doi:10.1088/1757-899X/1135/1/012025)
Valentino, T; Stephen, A; Radel, T
Reducing scatter in bent angle by a laser shock peening pretreatment
Quelle: Int. Congress on Applications of Lasers & Electro-Optics (ICALEO 2021) Journal of Laser Applications 33 (2021) 042016 (doi: 10.2351/7.0000468)
Warneke, P
Generating MMC Coatings by Laser Melt Injection at High Process Speeds - Reinforcing highly thermally conductive copper tools for pressure die casting by fused tungsten carbide particles
Quelle: PhotonicsViews 18, S1 (2021) 20-21 (E-Special LAF 2020) doi.org/10.1002/phvs.202100008
Zilm, M; Radel, T
Cut edge quality in laser ablation of micrometer-scale grating structures
Quelle: Proc. of Lasers in Manufacturing Conference 2021 (LiM 2021). German Scientific Laser Society/Wissenschaftliche Gesellschaft Lasertechnik e.V. (WLT e.V.) online
2020
Thermische Bedingungen der laserchemischen Mikrobearbeitung von Metallen
Quelle: Strahltechnik Bd. 70, eds.: F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2020)
Cold Metal Micro Forming
Quelle: Research Report of the Collaborative Resarch Center "Micro Cold Forming" (SFB 747), Bremen, Germany, Vollertsen, F; Kuhfuß, B; Thomy, C; Friedrich, S; Maass, P; Zoch, H-W. Springer Nature Switzerland AG; Cham/CH (2020)
Correlation between Shock Wave-induced Indentations and Tensile Strength
Koaxiale Implementierung einer Temperaturfelderfassung in eine kommerzielle SLM-Anlage
Tailoring the Pressure Profile of TEA-CO2 Laser-Induced Shock Waves for Mechanical Forming and Separation Processes
Impact of Peak Material Volume of Polycrystalline CVD Diamond Coatings on Dry Friction Against Aluminum
Analysis of the contact length during micrometal forming to establish its efficient measurement method
Generation of Functional Parts of a Component by Laser-Based Free Form Heading
Quelle: Cold Micro Metal Forming, eds. F. Vollertsen, B. Kuhfuß, C. Thomy, S. Friedrich, P. Maaß, H.-W. Zoch. Springer Nature Switzerland AG, Cham/CH (2020) 30-44
Im Teileverbund zur Taktsteigerung
Advanced Process-Monitoring in Additive Manufacturing
Inline-Charakterisierung des Pulverstroms für das Laser-Pulver-Auftragschweißen und die additive Fertigung (LAM)
Rapid heat treatment of spherical steel samples by laser radiation
Quelle: laser+photonics (2020) 72-74
Quelle: Werkstoffe in der Fertigung 1 (2020) 27-20
2019
Produktionsbegleitende Messeinrichtung basierend auf digitaler Holografie
Depth scanning using binary digital micro-mirror devices
Influence of the alloy composition on acoustic emission signals in discontinuous micro cutting of steel
Ganzheitliche optische Messtechnik
Lasernachbearbeitung additiv gefertigter Bauteile mittels Umschmelzpolieren
Distinct changes in microstructure due to heat input during laser metal deposition of H13 tool steel
Rapid Material Characterisation of Deep-alloyed Steels by Shock Wave Based Indentation Technique and Deep Rolling
Agglomerated tungsten carbide: A new approach for tool surface reinforcement
Comparison of the fatigue strength between additively and conventionally fabricated tool steel 1.2344
Investigation of the oxygen content of additively manufactured tool steel 1.2344
Simultaneous measurement of independent wave fronts using multiple signal classification
Laser melt injection of hard particles improve service life of copper or aluminum molds
Laser melt injection of hard particles with beam wobbling for wear protection of micro-injection molding tools
Influence of Magnesium on Spatter Behavior in Laser Deep Penetration Welding of Aluminum Alloys
Tailoring the Pressure Profile of TEA-CO2 Laser-Induced Shock Waves for Mechanical Forming and Separation Processes
Laser shock punching: principle and influencing factors
Monitoring and Control of the Heat Input in MAG-Laser-Hybrid Welding of High Strength Steel in Telescopic Crane Booms
Tribological Properties of Multi-Layer A-C:H:W/a-C:H PVD-Coatings Micro-Structured by Picosecond Laser Ablation
Keyhole Brazing with Two-Dimensional Laser Irradiation Patterns
In-line quality control using dimensional metrology of 3D metal parts printed by laser beam melting
New approach to evaluate 3D laser printed parts in powder bed fusion-based additive manufacturing in-line within closed space
Polymer-based holograms with individually adjustable structure angle
Mechanism-based classification of electrochemical machining processes
Effects of Short-Term Laser Beam Heating on the Absorptivity of Steel Sheets
Arc stabilization by laser induced metal vapor
Consideration of Absorption Coefficient Changes in Numerical Simulations of Laser Forming
Influences of surface pretreatments on absorptivity changes induced by laser beam processing
Low-defect additive manufacturing of high strength aluminium alloy by laser metal deposition
Additive Fertigung innovativer Leichtbauwälzlager mittels Laser-Pulver-Auftragschweißen
Micro-Structuring Of Multi-layered a-C:H:W/a-C:H Coatings Using Ultrashort Laser Pulses
Influence of filler wire oscillation on the seam texture in laser beam brazing
Kennzahl zur Bewertung der Nahtkantenqualität beim Laserstrahllöten
Messen von asphärischen Linsenformen mittels räumlicher Kohärenz
Phase measurement deviations in deflectometry due to properties of technical surface
Polished diamond coatings show potential in dry forming of aluminium
CVD diamond coating of forming dies with a homogenous coating thickness
Reduction of hot cracking susceptibility during laser welding of aluminum by vibrations
Efficient method for the determination of the contact length during Finite-Element-simulation in micro metal forming
High-speed X-ray investigation of melt dynamics during continuous-wave laser remelting of selective laser melted Co-Cr alloy
Roughness parameters for classification of as-built and laser post-processed additive manufactured surfaces
Process Stability during Laser Beam Welding with Beam Oscillation and Wire Feed
Impact of geometrical parameters of micro-textured DLC on tribological properties under dry sliding friction
High-speed manufacturing of HLFC structures by laser micro drilling
In-situ Temperaturüberwachung beim Laser-Pulver-Auftragschweißen
Joining by laser induced shock waves of aluminum and plastics
Wärmebehandlung sphärischer Stahlproben mittels Laserstrahlung
High-Speed Laser Melt Injection of Tungsten Carbide in Highly Conductive Copper Alloys
2018
Spatial multiplexing and autofocus in holographic contouring for inspection of micro-parts
Fast Quality Inspection of Micro Cold Formed Parts using Telecentric Digital Holographic Microscopy
Effects on non-ideal display properties in phase measuring deflectometry: A model-based investigation
Tool steel solid components produced by laser metal deposition
Additive Manufacturing of tool steel by laser metal deposition
Analysis of TEA-CO2-laser induced plasma to establish a new measurement technique
Plasma Induced On Hardness Indentation Balls
Energy of Laser Induced Shockwaves
Trockenumformung: Metal-Matrix-Composite Oberflächen für ein schmierstofffreies Tiefziehen
Influence of the Process on Surface Roughness of a High Wear Resistance AlSi40 Alloy Fabricated Via Additive Manufacturing
Mechanisms and processing limits of surface finish using laser-thermochemical polishing
Spatio-temporal sampling of the coherence function for step height measurements
Schockwelle statt Schneidstempel
Characterization of the tribological behaviour of tool surfaces depending on higher contact pressures
Process for Laser Cladding Features Three Hot Wires
Mikroumformtechnik für die Massenproduktion
Form determination of optical surfaces by measuring the spatial coherence function using shearing interferometry
Form metrology of optical surfaces based on partial coherent shearing interferometry in reflection
FTS-Diamantdrehen strukturierter Oberflächen. Diamantdrehen mit erweiterten Freiheitsgraden
Material characterization by deep rolling of laser deep alloyed micro-samples
Characterization of technical surfaces by structure function analysis
Thermal Decoherence of a Nonequilibrium Polariton Fluid
Novel approach for shape measurement using light with low spatial coherence length
2.5-dimensional polymer-based holograms with individually adjustable structure angle
Tensile properties and drawability of thin bimetallic aluminumscandium-zirconium / stainless steel foils and monometallic Al-Sc-Zr fabricated by magnetron sputtering
Advantages of an adaptive absorption coefficient for simulations of iterative laser beam processes
Determining Absorption Variations of Multiple Laser Beam Treatments of Stainless Steel Sheets
Messbare Laserstrahleffizienz
Dynamic process behavior in laser chemical micro machining of metals
Aktuelle Forschungsthemen zum Laserstrahleinsatz
Increasing the process efficiency in laser beam brazing
Steigerung der Prozesseffizienz beim Laserstrahllöten
Laser welding of hidden T-joints with lateral beam oscillation
Lens inspection using Multiple Aperture Shear Interferometry: Comparison to Wave Front Sensing Methods
Potenzial polierter Diamantbeschichtungen zur trockenen Umformung von Aluminium
Reduction of hot cracking susceptibility during laser welding of aluminum by vibrations
Vibration induced reduction of hot cracking susceptibility during close-edge laser welding of aluminum
Experimental identitfication of essential features of micro strip drawing with double deflection
Effect of Initial Surface Features on Laser Polishing of Co.-Cr-Mo Alloy Made by Powder-Bed Fusion
Application of Cause-Effect-Networks for the process planning in laser rod end melting
Interlaboratory comparison measurements of aspheres
Advances in macro scale laser processing
Buttonhole welding – laser deep penetration welds with smooth seam surface
Deep penetration laser welding with high seam surface quality due to buttonhole welding
Wärmearmes Schweißen von Aluminium mit hoher Spaltüberbrückbarkeit durch Strahlmodulation beim Schweißen mit hoch fokussierenden Festkörperlasern mit Zusatzwerkstoff
High Seam Surface Quality in Keyhole Laser Welding: Buttonhole Welding
Inline tool wear measurement in lateral micro upsetting
Geometrical design of micro-textured DLC coatings toward lubricant-freee metal forming
Fast Quality Assurance of Pipes
Laser micro drilling methods for perforation of aircraft suction surfaces
Improved reconstruction quality of holographic projections by controlling the individual pixel shape
IIW-Kommission IV „Power Beam Processes“
Erhöhung der Abschmelzleistung beim Laserauftragschweißen mit Heißdraht
Detektion von Prozessabweichungen durch Analyse der Schmelzbadgeometrie
Mechanical Joining of Glass and Aluminium
Laserstrahlfügen mit hoher Nahtoberflächenqualität – Neueste Entwicklungen
Impact of multi-focus beam shaping on the process stability
Interactions between feed system and process in production of preforms as linked micro parts
Laser edge forming to increase the bending radius in hemming
Laserfügen von Mischverbindungen: ultrahochfeste Stähle, Aluminium, Titan und CFK
Laser joining of titanium wires and aluminum sheets for aluminum-CFRP transitions
Recast Zone and Unmelted Zone of the White Layer Induced by Microsecond Pulsed Laser Surface Processing of 42CrMo4 Alloy steel
2017
BÜCHER
Köhler, H
Schwingfestigkeit laserauftraggeschweißter legierter Stähle
Quelle: Strahltechnik Bd. 64, eds. F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2017)
Mittelstädt, C; Seefeld, T
Steigerung der Prozesseffizienz beim Laserstrahllöten
Quelle: Schlussbericht zum AiF-Projekt 18.386 N / DVS-Nr.: 06.093. TIB Hannover (2017) online
Volpp, J
Dynamik und Stabilität der Dampfkapillare beim Laserstrahltiefschweißen
Quelle: Strahltechnik Bd. 63, eds.: F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2017)
Quelle: Strahltechnik Bd. 65, eds.: F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2017)
PATENTE
Kügler, H; Woizeschke, P; Seefeld, T
Verfahren und eine Vorrichtung zum Herstellen einer Fügeverbindung
Quelle: Offenlegungsschrift DE 10 2015 115 183 A1 (2017)
Vollertsen, F; Mehrafsun, S
Verfahren zum durch Wärmeeintrag mittels einer strahlbasierten Energiequelle, insbesondere eines Lasers, induzierten chemischen Abtragen, insbesondere Mikrotiefbohren, sowie Vorrichtung zur Durchführung desselben
Quelle: Offenlegungsschrift DE 10 2016 108 162 A1 (2017)
Vollertsen, F; Woizeschke, P; Radel, T
Verfahren zum strahlbasierten Löten, insbesondere Elektronenstrahl- und Laserstrahllöten, von metallischen Grundwerkstoffen
Quelle: Offenlegungsschrift DE 10 2017 100 497 A1 (2017)
PUBLIKATIONEN
Agour, M; Falldorf, C; Bergmann, R B
Distortion free reconstruction in digital holographic microscopy
Quelle: Proc. of the Face2Phase Conference, Delft/NL (2017) 38
Agour, M; Klattenhof, R; Falldorf, C; Bergmann, R B
Spatial multiplexing digital holography for speckle noise reduction in single-shot holographic two-wavelength contouring
Quelle: Optical Engineering 56, 12 (2017) 124101-1-7
Agour, M; Klattenhoff, R; Falldorf, C; Bergmann, R B
Speckle noise reduction in single-shot holographic two-wavelength contouring
Quelle: Proc. of SPIE Vol. 10233 (Holography: Advances and Modern Trends V), eds.: M. Hrabovsky, J. T. Sheridan, A. Fimia. SPIE Bellingham WA (2017) 10233R-1-9
Agour, M; Simic, A; Falldorf, C; Bergmann, R B
Kompensation der Abbildungsverzerrung in der digital holografischen Mikroskopie durch Einsatz eines telezentrischen Objektives
Quelle: 8. Kolloquium Mikroproduktion. Hrsg. F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 7-22 (online)
Almohallami, A; Arghavani, M; Böhmermann, F; Freiße, H; Herrmann, M; Mousavi, S A; Schöler, S; Scholz, P; Tenner, J; Teller, M; Umlauf, G; Wulff, D; Yilkiran, D; Maier, H J
How dry is dry? – A critical analysis of surface conditions used in dry metal forming
Quelle: Dry Met. Forming OAJ FMT 3 (2017) 090-094
Behlau, M
mikromal – MINT Nachwuchsförderung zwischen Schulbesuch und Smartphone
Quelle: Talente - Zeitschrift für Bildung und Berufsorientierung 28 (2017) 62 - 64
Bohlen, A; Freiße, H; Vollertsen, F
Charakterisierung und Modellierung der Mehrfachumwandlung in Werkzeugstählen bei additiven Verfahren
Quelle: Schweißen und Schneiden 69, 12 (2017) 848
Brüning, H; Schattmann, C; Krüger, M
Melt pool geometry in laser blank rim melting to generate continuous cylindrical preforms
Quelle: Production Engineering Research and Development 11, 4-5 (2017) 425-433
Cho, W; Schultz, V; Vollertsen, F
Simulation of the buttonhole formation during laser welding with wire feeding and beam oscillation
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Czotscher, T
Influence of focal position on laser-induced plasma and hardness indentations
Quelle: Proc. of the 36th Intern. Congress on Applications of Laser & Electro-Optics (ICALEO 2017) Atlanta GA USA (2017) paper no. M903
Czotscher, T
Umformen, Fügen, Schneiden und Messen mit nur einem Laser – die abtragsfreie Laserschockbearbeitung
Quelle: Laser Magazin 4 (2017) 6-8
Czotscher, T; Mattulat, T
Laser Processing of Aluminium Sheets with Low Heat Related Deformations for Deep Drawing
Quelle: Journal for Technology of Plasticity, Vol. 42, 2 (2017) 1-10
Czotscher, T; Stephen, A; Vollertsen, F
Elektronenoptische Weitwinkellinsen fertigen
Quelle: UMFORMtechnik 2 (2017) 13
Czotscher, T; Veenaas, S; Vollertsen, F
Possibilities To Characterise Laser Induced Shock Waves
Quelle: JTP - Journal for Technology of Plasticity 42, 1 (2017) 1-7
Czotscher, T; Vollertsen, F
Process stability of laser induced plasma for hardness measurements
Quelle: Lasers in Manufacturing (LIM 2017), eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Dörfert, R; Freiße, H; Vollertsen, F
Charakterisierung der Einflussfaktoren und Vorhersage der Schwingfestigkeit additiv gefertigter Bauteile
Quelle: WoMag 11 (2017) 8
Dörfert, R; Stoll, C; Freiße, H; Seefeld, T; Vollertsen, F
Influence of the process on surface roughness of 3D-printed aluminum alloy parts
Quelle: International Journal of Latest Research in Engineering and Technology (IJLRET), 03, 10 (2017) 35-41
Eckert, S; Köhnsen, A; Vollertsen, F
Surface finish using laser-thermochemical machining
Quelle: Lasers in Manufacturing (LIM 2017), eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Eckert, S; Messaoudi, H; Mehrafsun, S; Vollertsen, F
Laser-Thermochemical Induced Micro-Structures on Titanium
Quelle: Journal of Materials Science & Surface Engineering, 5, 7 (2017) 685-691
Falldorf, C; Agour, M; Bergmann, R B
Coherent imaging using the mutual intensity function
Quelle: Proc. of Face2Phase, Delft (2017) 32
Falldorf, C; Agour, M; Bergmann, R B
Computational Methods in Coherent Optical Metrology
Quelle: Proc. of AMA Conferences. AMA Publications, Wunstorf (2017) 239-243 (10.5162/sensor2017/B5.2)
Falldorf, C; Bergmann, R B
Computational Optical Metrology
Quelle: Photonics Germany (2017) 64
Falldorf, C; Klein, T; Agour, M; Bergmann, R B
Holographic 3D imaging through diffuse media by compressive sampling of the mutual intensity
Quelle: Proc. of Holography: Advances and Modern Trends V, eds. M. Hrabovsky, J. T. Sheridan, A. Fimia. SPIE Vol. 10233, SPIE Digital Library (2017), 102330-Q1-8
Falldorf, C; Hagemann, J.-H; Ehret, G; Bergmann, R B
Sparse light fields in coherent optical metrology
Quelle: Applied Optics 56, 13 (2017) F14-F19
Freiße, H; Hohenäcker, V; Seefeld, T; Vollertsen, F
Laser generated tool surface out of metal matrix composite
Quelle: Dry Met. Forming OAJ FMT 3 (2017) 041-044
Freiße, H; Thomy, C; Vollertsen, F
Hochproduktives Laserauftragschweißen mit drei Heißdrähten
Quelle: Schweißen und Schneiden 69, 12 (2017) 848-849
Freiße, H; Vetter, K; Seefeld, T; Polte, M, Polte, J
Production of a supporting plateau out of hard particles in a tool surface and its influence in dry sheet metal forming
Quelle: Proc. of the 7. WGP Jahreskongress, eds.: R. Schmitt, G. Schuh. Apprimus Verlag Aachen (2017) 527-534
Freiße, H; Vetter, K; Seefeld, T; Vollertsen, F
Applying laser dispersion and laser ablation to generate functional layers for deep drawing tools
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Gao, X. S; Wu, C. S; Goecke, S; Kügler, H
Numerical simulation of temperature field, fluid flow and weld bead formation in oscillating single mode laser-GMA hybrid welding
Quelle: Journal of Materials Processing Technology 242 (2017) 147-159 online
Gao, X. S; Wu, C. S; Goecke, S; Kügler, H
Effects of process parameters on weld bead defects in oscillating laser-GMA hybrid welding of lap joints
Quelle: International Journal of Advanced Manufacturing Technology (2017) doi: 10.1007/s00170-017-0637-y
Gatzen, M; Woizeschke, P; Radel, T; Thomy, C; Vollertsen, F
Experimental and Numerical Investigation of an Overheated Aluminum Droplet Wetting a Zinc-Coated Steel Surface
Quelle: Metals 2017, 7 (2017) 535, doi:10.3390/met7120535
Hagemann, J.-H; Ehret, G; Andreas, B; Bergmann, R B; Falldorf, C
Virtual Shearing Interferometer with LED Illumination for Form Characterization of Optics
Quelle: Proc. of the European Optical Society Annual Meeting (EOSAM 2016). European Optical Society (2017) 277-278
Hagemann, J-H; Falldorf, C; Ehret, G; Bergmann, R B
Spatial light modulator used as a diffractive element in shearing interferometry for form characterization of optics
Quelle: Proc. of EOSAM 2017. European Optical Society (2017) 67-68
Hagemann, J.-H; Falldorf, C; Ehret, G; Bergmann, R B
Error influences of the shear element in interferometry for form characterization of optics
Quelle: Proc. Optical Measurement Systems for Industrial Inpection X, eds.: P. Lehmann, W. Osten, A. A. Goncalves jr. SPIE Digital Library (2017) 103291T1-1
Heinrich, L; Kobayashi, H; Shimizu, T; Yang, M; Vollertsen, F
Influence of asymmetrical drawing radius deviation in micro deep drawing
Quelle: Proc. of the 36th IDDRG Conference - Materials Modelling and Testing for Sheet Metal Forming. Journal of Physics 896 (2017) 012060 (online)
Hohenäcker, V; Freiße, H; Thomy, C; Vollertsen, F; Brocke, N; Schnick M
Process monitoring system for an innovative direct beam diode laser with coaxial beam guiding
Quelle: Laser Technik Journal 3 (2017) 16
Hof, L; Heinrich, L; Wüthrich, R
Towards high precision manufacturing of glass tools by Spark Assisted Chemical Engraving (SACE) for micro forming techniques
Quelle: Proceedings of the World Congress on Micro and Nano Manufacturing, (WCMNM 2017), eds. Yunn-Shiuan Liao, Albert J. Shih, Chiu-Feng Lin. Kaohsiung, Taiwan (2017) CD-Rom
Kan, H; Shimizu, T; Messaoudi, H, Yang, M
The effect of geometrical parameters of micro-textred DLC coatings on tribological properties under dry sliding friction
Quelle: Proc. of the 1st Asia Pacific Symposium on Technology of Plasticity, Taichung, Taiwan (APSTP 2017) 31 (paper no. C1361)
Kalms, M
Novel strategies to better measure the quality of wing surfaces
Quelle: EU CORDIS: Community Research and Development Information Service (2017)
Klaproth, F; Vollertsen, F
Laserstrukturen für definierte Kontakteigenschaften
Quelle: Mikroproduktion 02 (2017) 46-49
Kügler, H; Vollertsen, F
Stabilisieren des Lichtbogens durch Metalldampf
Quelle: Große Schweißtechnische Tagung 2017. DVS-Berichte 337 (2017) 184-189
Kühn, R; Berger, T; Prieske, M; Börner, R; Hackert-Oschätzchen, M; Zeidler, H; Schubert, A
Deposition and Micro Electrical Discharge Machining of CVD-Diamond Layers Incorporated with Silicon
Quelle: Proc. Of the 20th International ESAFORM Conference on Material Forming (2017), AIP Conference Proceedings 1896 (2017) 050012-1-050012-6 (online)
Laskin, A; Volpp, J; Laskin, V; Ostrun, A
Multi-focus beam shaping of high power multimode lasers
Quelle: Optical Trapping and Optical Micromanipulation XIV, edited by Kishan Dholakia, Gabriel C. Spalding. Proc. of SPIE Vol. 10347. SPIE (2017) 103470N-1-10
Messaoudi, H; Eckert, S; Vollertsen, F
Thermal Analysis of Laser Chemical Machining: Part 1: Static Irradiation
Quelle: Materials Sciences and Applications 8 (2017) 865-707
Messaoudi, H; Hauser, O; Matson, A; Mehrafsun, S; Vollertsen, F
Fertigungsqualität laserchemisch hergestellter Mikroumformwerkzeuge
Quelle: 8. Kolloquium Mikroproduktion, Hrsg.: F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 171-178 (online)
Messaoudi, H; Mehrafsun, S; Tromenschläger, W; Vollertsen, F
Picosecond Laser Cleaning of Hot Stamped 22MnB5 Steel
Quelle: Journal of Materials Science & Surface Engineering 5, 1 (2017) 504-508 (online)
Messaoudi, H; Thiemicke, F; Falldorf, C; Bergmann, R B; Vollertsen, F
Distortion-free laser beam shaping for material processing using a digital micromirror device
Quelle: Production Engineering - Research and Development 11, 3 (2017) 365-371
Messaoudi, H; Vollertsen, F
Compact module for maskless and simultaneous 2D laser chemical machining
Quelle: Small Machine Tools for Small Workpieces, Lecture Notes in Production, eds.: J. P. Wulfsberg, A. Sanders, Springer International Publishing AG Cham/Switzerland (2017) 49-64
Mittelstädt, C; Littau, F; Seefeld, T
Investigating the preheating capability of reflections from a laser beam brazing process
Quelle: Proc. of the 5th International Conference on Steels in Cars and Trucks (SCT 2017) Amsterdam/NL (online)
Mittelstädt, C; Seefeld, T; Littau, F
Detecting and utilizing reflected radiation in laser beam brazing
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Mittelstädt, C.; Seefeld, T.; Vollertsen, F.
Laserstrahllöten mit oszillierendem Kaltdraht
Quelle: Laser Magazin 1 (2017) 16-17
Mittelstädt, C; Vollertsen, F; Brüning, H; Jung, S
Flexibel und sicher in der Anwendung
Quelle: Der Praktiker 12 (2017) 604-606
Prieske, M
Abscheidung von CVD-Diamantschichten an der Atmosphäre
Quelle: Diamond Business 62 (2017) 46-47
Prieske, M; Müller, S
Impact of the methane hydrogen ratio onto deposition temperature, growth rate and residual stress in an atmospheric laser plasma CVD process
Quelle: Proc. of the 28th International Conference on Diamond and Carbon Materials (DCM 2017) Göthenburg/Sweden (online)
Prieske, M; Vollertsen, F
Resistance modification of diamond through silicon incorporation
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Radel, T
Thermal impacts in vibration-assisted laser deep penetration welding of aluminum
Quelle: Nordic Laser Materials Processing Conference (NOLAMP 16), eds.: M. Kristiansen, S. L. Villumsen. Physics Procedia 89 (2017) 131-138 (online)
Radel, T
Mechanical solidification manipulation during laser beam welding of aluminum
Quelle: IIW Annual Assembly 2017 Com. IV, Shanghai/China (2017) IIW-Doc. 1336-17 (online)
Radel, T; Gatzen, M; Woizeschke, P; Thomy, C; Vollertsen, F
Methoden zur Charakterisierung des Haftungs- und Benetzungsverhaltens bei Kurzzeitlötprozessen
Quelle: Schweißen und Schneiden 69, 12 (2017) 826-828
Radel, T; Vollertsen, F
Grain refinement in vibration-assisted laser welding of aluminum
Quelle: Proc. of the 2nd Conf. On Light Materials - Science and Technology (LightMAT 2017) online
Radel, T; Vollertsen, F
Flussmittelfreies Laserstrahllöten von Aluminiumwerkstoffen durch die Verwendung lithiumhaltiger Aluminiumbasislotwerkstoffe
Quelle: Schweißen und Schneiden 69, 5 (2017) 273-274
Radel, T; Vollertsen, F
Kornfeinung durch mechanische Erstarrungsmanipulation beim Laserstrahltiefschweißen
Quelle: Schweißen und Schneiden 69, 4 (2017) 212
Rahman, S; Klein, T; Gutowski, J; Klembt, S; Sebald, K
Tunable Bragg polaritons and nonlinear emission from a hybrid metal-unfolded ZnSe-based microcavity
Quelle: Scientific Reports 7, 1:767 (2017), DOI: 10.1038/s41598-017-00878-2
Robert, C; Messaoudi, H; Riemer, O; Brinksmeier, E; Vollertsen, F
Modifikation der Oberflächenfeingestalt monokristalliner Diamanten
Quelle: 8. Kolloquium Mikroproduktion, Hrsg.: F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 187-194 (online)
Schattmann, C; Brüning, H; Ellmers, J-H; Vollertsen, F
Herstellung von Mikroverbundstrukturen für die Kaltmassivumformung
Quelle: Umformtechnik (2017) online
Schattmann, C; Hennick, C; Brüning, H; Pfefferkorn, F. E; Vollertsen, F
Generation and shape control of line-linked preforms by laser melting
Quelle: JTP - Journal for Technology of Plasticity 42, 1 (2017) 21-32
Schattmann, C; Vollertsen, F
Metrisches Gewinde in dünnen Blechen
Quelle: Mikroproduktion 06 (2017) 60-61 auch in: Blech 7, 17 (2017) 42-43
Schattmann, C; Wilhelmi, P; Schenck, C; Kuhfuss, B; Vollertsen, F
Erhöhung der Taktrate bei der Herstellung von Zwischenformen im Linienverbund
Quelle: 8. Kolloquium Mikroproduktion, Hrsg.: F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 227-236 (online)
Schmidt, M; Merklein, M; Bourell, D; Dimitrov, D; Hausotte, T; Wegener, K; Overmeyer, L; Vollertsen, F; Levy, G N
Laser based additive manufacturing in industry and academia
Quelle: CIRP Annals - Manufacturing Technology 66, 2 (2017) 561 - 583
Schultz, V; Cho, W; Woizeschke, P; Vollertsen, F
Laser deep penetration weld seams with high surface quality
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Schultz, V; Stephen, A; Kalms, M; Thomy, C
Laser ermöglichen die Fertigung kraftstoffsparender Flugzeugstrukturen
Quelle: Laser Magazin 5 (2017) 23
Schultz, V; Woizeschke, P; Vollertsen, F
Laserstrahltiefschweißen in Sichtnahtqualität
Quelle: Schweißen und Schneiden 69, 6 (2017) 346-347
Sebald, K; Rahmann, S; Kaya, T; Gutowsky, J; Klein, T; Klembt, S; Gust, A; Hommel, D
Influence of sample design on the strong light-matter coupling in ZnSe-based periodic structures
Quelle: IOP Conf. Series: Journal of Physics: Conf. Series 864 (2017) 0120202-1-5 (online)
Simic, A; Freiheit, H; Agour, M; Falldorf, C; Bergmann, R B
Inline quality control of micro-parts using digital holography
Quelle: Proc. of Holography: Advances and Modern Trends V, eds.: M. Hrabovsky, J. T. Sheridan, A. Fimia. SPIE Vol. 10233. SPIE Digital Library (2017) 1023311
Sokkara, T. Z. N; El-Farahaty, K. A; El-Barkarya, E. Z; Agour, M
Characterization of axially tilted fibres utilizing a single-shot interference pattern
Optics and Lasers in Engineering 91 (2017) 144-150
Stein, S; Dobler, M; Radel,·T; Strauß, M; Breitschwerdt, H; Hugger, F; Roth, S; Schmidt, M
Experimental and numerical investigations regarding laser drop on demand jetting of Cu alloys
Quelle: Production Engineering -Research and Development 11, 3 (2017) 275-284
Stephen, A; Messaoudi, H; Vollertsen, F
High-Speed-Perforieren
Quelle: Blech 03 (2017) 36-37
Tyralla, D
Diamantschichten am Fließband
Quelle: Magazin für Oberflächentechnik 71, 11 (2017) 22-23
Tyralla, D; Prieske, M; Vollertsen, F
Transmission of polycrystalline diamond for zero phonon line of SiV centers
Quelle: Proc. of the 28th International Conference on Diamond and Carbon Materials (DCM 2017) Göthenburg/Sweden (online)
Veenaas, S; Vollertsen, F
Untersuchung der Verbindungsfestigkeit von Laserschock gefügten Proben bei unterschiedlichen Matrizengeometrien
Quelle: 8. Kolloquium Mikroproduktion, Hrsg.: F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 237-244 (online)
Veenaas, S; Vollertsen, F
Crack formation on metal foils during high dynamic and quasi-static bulge test
Quelle: Proc. of the 36th IDDRG Conference - Materials Modelling and Testing for Sheet Metal Forming. Journal of Physics 896 (2017) 012072 (online)
Vetter, K.; Freiße, H.; Feuerhahn, F.; Köhler, H.; Vollertsen, F.
Influence of scanning strategy on alloy generation
Quelle: THE LASER USER 83 (Winter 2017) 32 - 33
Vetter, K; Freiße, H; Vollertsen, F
High-throughput material development using selective laser melting and high power laser
Quelle: Proc. of the 7. WGP Jahreskongress, eds.: R. Schmitt, G. Schuh. Apprimus Verlag Aachen (2017) 511-518
Vetter, K; Hohenäcker, S; Freiße, H; Vollertsen, F
Use of additive manufacturing for high-throughput material development
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Vollertsen, F; Mittelstädt, C
Sustainable laser joining technologies for automotive applications
Quelle: Proc. of the 70th IIW International Conference (Keynote Paper C085) Shanghai/China (2017) C8-C10 (USB Stick)
Vollertsen, F; Woizeschke, P; Schultz, V; Mittelstädt, C
Developments for laser joining with high-quality seam surfaces
Quelle: Lightweight Design 10, 5 (2017) 6-13
Vollertsen, F; Woizeschke, P; Schultz, V; Mittelstädt, C
Entwicklungen beim Laserfügen mit hoher Nahtoberflächenqualität
Quelle: Lightweight Design 5 (2017) 10-17
Volpp, J
Formation mechanisms of pores and spatters during laser deep penetration welding
Quelle: Journal of Laser Applications 30, 1 (2017) 012002-1-7
Volpp, J
Keyhole stability during laser welding—Part II: process pores and spatters
Quelle: Production Engineering Research and Development 11, 1 (2017) 11-9-18
Volpp, J; Hohenäcker, V; Tyralla, D; Freiße, H; Brocke, N; Silze, F; Schnick, M; Thomy, C
Observing melt pool temperature fields for process characterization
Quelle: Lasers in Manufacturing (LIM17) eds.: L. Overmeyer, U. Reisgen, A. Ostendorf, M. Schmidt (2017) USB-Stick
Volpp, J; Vollertsen, F
Einfluss der Strahlformung mittels Bifokaloptik auf die Spritzerbildung beim Laserstrahltiefschweißen
Quelle: Schweißen und Schneiden 69, 5 (2017) 274-277
Volpp, J; Vollertsen, F
Multifokusoptik zum Laserstrahltiefschweißen
Quelle: Schweißen und Schneiden 69, 4 (2017) 212-213
von Freyberg, A; Agour, M; Bergmann, R B; Fischer, A
Geometrische Auswertung digital holographischer Messungen im Bereich des Mikrokaltumformens
Quelle: 8. Kolloquium Mikroproduktion, Hrsg. F. Vollertsen, C. Hopmann, V. Schulze, J. Wulfsberg. BIAS Verlag Bremen (2017) 23-30 (online)
Vorholt, J; Shimizu, T; Kobayashi, H; Heinrich, L; Flosky, H; Vollertsen, F; Yang, M
In-situ observation of lubricant flow on laser textured die surface in sheet metal forming
Quelle: The 12th Intern. Conf. on the Technology of Plasticity (ICTP2017). Procedia Engineering 207 (2017) 2209-2214 (online)
Windmann, M; Röttger, A; Kügler, H; Theisen, W
Microstructure and mechanical properties of the heat-affected zone in laser-welded/brazed steel 22MnB5–AA6016 aluminum/AZ31 magnesium alloy
Quelle: Journal of Materials Processing Technology 247 (2017) 11-18 (online)
Woizeschke, P; Radel, T; Nicolay, P; Vollertsen, F
Laser deep penetration welding of aluminum alloys with simultaneously applied vibrations
Quelle: Laser in Manufacturing and Materials Processing 4, 1 (2017) 1-12
Yassien, K. M; Agour, M
Measuring opto-thermal parameters of basalt fibers using digital holographic microscopy
Quelle: Microscopy Research and Technique 80 (2017) 211-219
Yassien, K; Agour, M
Measuring opto-thermal parameters of basalt fibres using digital holographic microscopy
Quelle: Microscopy Research and Technique 80 (2017) 211-219
Zhao, T; Vollertsen, F
Process Signatures as a Measure for Loopless Production
Quelle: Engineering 9 (2017) 328-337
2016
BÜCHER
Brüning, H
Prozesscharakteristiken des thermischen Stoffanhäufens in der Mikrofertigung
Quelle: Strahltechnik Bd 57, eds. F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2016)
Kamau, E
Quelle: Strahltechnik Bd. 60, eds.: F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2016)
Kibben, S
UV-laserbasierte Oberflächenfluorierung von Polymeren
Quelle: Strahltechnik Bd. 58, eds. F. Vollerten, R. Bergmann. BIAS Verlag Bremen (2016)
Möller, F
Wechselwirkung zwischen Lichtbogen und Laserstrahl beim Fügen von Aluminium
Quelle: Strahltechnik Bd. 59, eds. F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2016)
Schwander, M
Lokale Diamantsynthese durch einen laserbasierten atmosphärischen CVD-PVD-Prozess
Quelle: Strahltechnik Bd 56, eds.: F. Vollertsen, R. Bergmann. BIAS Verlag Bremen (2016)
PATENTE
Woizeschke, P; Vollertsen, F; Brüning, H; von Herz, B
Verfahren zum Herstellen eines Halbzeuges und einer Verbindung sowie ein Halbzeug nach dem Herstellungsverfahren
Quelle: Offenlegungsschrift DE 10 2014 009 737 A1 (2016)
PUBLIKATIONEN
Agour, M; Falldorf, C; Bergmann, R B
Holographic display system for dynamic synthesis of 3D light fields with increased space bandwidth product
Quelle: Optics Express 24, 13 (2016) 14393-14405
Agour, M; Falldorf, C; Bergmann, R B
Shape measurements of microscopic objects using computational shear interferometry
Quelle: Proc. Of SPIE Vo. 9718, Quantitative Phase Imaging II, eds. G. Popescu, YK Parc. SPIE (2016) 97182M-1-8
Agour, M; Flosky, C; Riemer, O; Falldorf, C; Bergmann, R B
In-Line Computational Shear Interferometry of Insert Moulded Micro Parts for Optical Application
Quelle: Int. J. Adv Manuf Technol 91 (2016) 1671-1676
Behrens, G; Trier, F; Tetzel, H; Vollertsen, F
Influence of Tool Geometry Variations on the Limiting Drawing Ratio in Micro Deep Drawing
Quelle: International Journal of Material Forming 9, 2 (2016) 253-258
Brüning, H; Jahn, M; Vollertsen, F; Schmidt, A
Influence of laser beam absorption mechanism on eccentricity of preforms in laser rod end melting
Quelle: 11th International Conference on Micro Manufacturing (ICOMM) Orange County, California, USA, (2016) paper 77 (online)
Czotscher, T
Forming behaviour of micro-structured aluminium sheets
Quelle: WGP Congress 2016 - Progress in Production Engineering, eds. Jens P. Wulfsberg, M. Fette, T. Montag. Advanced Material Research TransTech Publications, Pfaffikon/Switzerland (2016) ISSN: 1022-6680
Czotscher, T; Vollertsen, F
Analysis of melting and melt expulsion during nanosecond pulsed laser ablation
Quelle: Proc. of the 9th International Conference on Photonic Technologies (LANE 2016). Physics Procedia 83 (2016) 53-61
Czotscher, T; Vollertsen, F
Hoch transmissive metallische Sensorkomponenten hergestellt durch Laserperforieren und Umformen von Feinblechen
Quelle: Laser Magazin 3 (2016) 13-14
Dörfert, R; Freiße, H; Stroth, M; Vorholt, J; Khazan, P; Köhler, H; Seefeld, T; Thomy, C; Vollertsen, F
Direct Laser Deposition – Method and Application Examples of Additive Manufacturing with Laser Cladding Technology
Quelle: IIW Annual Assembly 2016 Com. IV und XII Melbourne/Australia (2016) IIW-Doc. I-1285-16, IV-1311-16, XII-2305-16, 212-1457-16
Falldorf, C
Taking the next step: The advantage of spatial covariance in optical metrology
Quelle: Proc. on Imaging and Applied Optics Congress 2016. OSA Publishing (2016) DW3E.1
Falldorf, C; Agour, M; Kötter, J; Bergmann, R B
Quantitative phase Contrast imaging using a Nomarski microscope with variable shear distance
Quelle: Proc. of SPIE Vol. 9718. SPIE Digital Library (2016) 97182I-1-7
Flosky, H; Feuerhahn, F; Böhmermann, F; Riemer, O; Vollertsen, F
Performance of a Micro Deep Drawing Die Manufactured by Selective Laser Melting
Quelle: Proc. of the 5th International Conference on Nanomanufacturing (nanoMan 2016) Macau (online)
Freiße, H; Köhler, H; Thomy, C; Brocke, N; Schnick, M; Vollertsen, F
Prozessüberwachungssystem für einen neuartigen direktstrahlenden Diodenlaser koaxialer Strahlführung
Quelle: Schweißen und Schneiden 68, 6 (2016) 361-362
Freiße, H; Köhler, H; Thomy, C; Vollertsen, F; Brocke, N; Schnick, M
Prozessüberwachungssystem für einen neuartigen direktstrahlenden Diodenlaser koaxialer Strahlführung
Quelle: WoMag 7, 8 (2016)
Freiße, H; Langebeck, A; Koehler, H; Seefeld, T
Dry strip drawing test on tool surfaces reinforced by hard particles
Quelle: Dry Met. Forming OAJ FMT 2 (2016) 001-006
Freiße, H; Langebeck, A; Köhler, H; Seefeld, T; Vollertsen, F
Dry strip drawing tests on tool surfaces reinforced with hard particles
Quelle: Proc. Of the 12th International Conference The "A" Coatings 2016, eds. K. Bobzin, K.-D. Bouzakis, B. Denkena, H. J. Meier, M. Merklein. TEWISS-Technik und Wissen GmbH (PZH Verlag) Hannover, Bd. 3 (2016) 169-177
Freiße, H; Langebeck, A; Köhler, H; Seefeld, T; Vollertsen, F
Investigations on dry sliding of laser cladded aluminum bronze
Quelle: Manufacturing Review 3, 13 (2016) 1-10
Friedrich, S; Vollertsen, F
Umformtechnik für Bauteile in großen Losgrößen
Quelle: Mikroproduktion 01 (2016) 22-28
Gatzen, M; Radel, T; Thomy, C; Vollertsen, F
Wetting and solidification characteristics of aluminium on zinc coated steel in laser welding and brazing
Quelle: Journal of Materials Processing Technology 238 (2016) 352-360 (online)
Gatzen, M; Thomy, C; Vollertsen, F
Benetzung von Aluminiumtropfen auf unterschiedlich verzinkten Stahlfeinblechen
Quelle: DGM Magazin diALOG 4 (2016) 108
Goecke, S; Kügler, H; Baum, S; Vollertsen, F
Gap Bridging in Laser-GMA-Hybrid Welding of Boron Manganese UHSS
Quelle: Proc. of The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation (Visual-JW2016), Osaka, Japan
Hagemann, J.-H; Ehret, G; Bergmann, R B; Falldorf, C
Realization of a shearing interferometer with LED multipoint illumination for form characterization of optics
Quelle: DGaO Proceedings (2016) paper 20
Khazan, P; Radel, T; Woizeschke, P
Numerical simulation of the distortion in conventional laser and fluxless laser-plasma brazing of aluminum using simufact welding
Quelle: 9th Int. Congress Aluminium Brazing, DVS Berichte Bd. 323. DVS Media Düsseldorf (2016) 60-65
Klembt, S; Klein, T; Minguzzi, A; Richard, M
Quasi-thermal depletion of a polariton condensate by phonons near room temperature
Quelle: arXiv:1603.04206v2 (2016) online
Klocke, F; Vollertsen, F; Harst, S; Eckert, S; Zeis, M; Klink, A; Mehrafsun, S
Comparion on Material Modifications Occurring in Laserchemical and Electrochemical Machining
Quelle: Proc. of the International Symposium on Electrochemical Machining Technology (INSECT 2016), ed.: J. Deconinck. VUB University Press, Zelzate/Belgium (2016) 57-63
Köhler, H; Thomy, C; Vollertsen, F
Contact-less temperature measurement and control with applications to laser cladding
Quelle: Welding in the World, 60, 1 (2016) 1-9, also in: IIW Annual Assembly 2014 Com. IVI, Seoul/Korea (2014) paper IV-1181-14; IV-1191-14; 212-1340-14 (online)
Koerdt, M; Kibben, S; Bendig, O; Chandrashekhar, S; Hesselbach, J; Brauner, C; Hermann, A; Vollertsen, F; Kroll, L
Fabrication and characterization of Bragg gratings in perfluorinated polymer optical fibers and their embedding in composites
Quelle: Mechatronics 34 (2016) 137-146
Kreis, T
3D-Display by Referenceless Phase Holography
Quelle: IEEE Transactions on Industrial Informatics 12, 2 (2016) 685-693
Kreis, T
Application of Digital Holography for Nondestructive Testing and Metrology
Quelle: IEEE Transactions on Industrial Informatics 12, 1 (2016) 240-247
Kreis, T; Bergmann, R B
Referenceless Phase Holography, a New 3D Display Method
Quelle: Proc. Digital Holography & Three -Dimensional Imaging, Heidelberg (2016) OSA Technical Digest on Imaging and Applied Optics (2016) DTh4E.4 (online)
Kügler, H; Mittelstädt, C; Vollertsen, F
Influence of joint configuration on the strength of laser welded presshardened steel
Quelle: 9th International Conference on Photonic Technologies (LANE 2016) Physics Procedia 83 (2016) 373-382
Kügler, H; Möller, F; Goecke, S; Vollertsen, F
Fatigue strength of hybrid welded 22MnB5 overlap joints
Quelle: Material testing 58, 6 (2016) 569-574, also in: Proc. of the IIW Annual Assembly 2015 Com. XII, Helsinki, Finnland (2015) IIW Doc. XII-2247-15 (online)
Kügler, H; Vollertsen, F
Laserstrahlfügen von Mischverbindungen aus 22MnB5 und Magnesium
Quelle: Lightweight Design 1 (2016) 10
Kühn, R; Prieske, M; Zeidler, H; Schubert, A; Vollertsen, F
Lokale Beeinflussung der Oberflächenrauheit von Silizium dotiertem CVD-Diamant durch funkenerosive Mikrobearbeitung
Quelle: Dry Met. Forming OAJ FMT 2 (2016) 050-055
Laskin, A; Volpp, J; Laskin, V; Ostrun, A
Refractive multi-focus optics for material processing
Quelle: Int. Congress on Applications of Lasers & Electro-Optics (ICALEO 2016), LIA Orlando FL (2016) paper 1402
Leveque, S; Falldorf, C; Klattenhoff, R; Cheffot, A
Day-time local phasing of neighbouring segments of the E-ELT, based on simultaneous multi-shearing interferometry
Quelle: Proc. of SPIE Vol. 9912. Advanced in Optical and Mechanical Technologies for Telescopes and Instrumentation II, eds. R. Navarro, J. H. Burge. SPIE (2016) 99124G-1-12
Mehrafsun, S; Harst, S; Hauser, O; Eckert, S; Klink, F; Klocke, F; Vollertsen, F
Energy-based Analysis of Material Dissolution Behavior for Laser-Chemical and Electrochemical Machining
Quelle: 3rd CIRP Conference on Surface Integrity (CSI). Procedia CIRP 45 (2016) 347-350
Mehrafsun, S; Messaoudi, H; Vollertsen, F
Influence of material and surface roughness on gas bubble formation and adhesion in laser-chemical machining
Quelle: Proc. of the 5th International Conference on Nanomanufacturing (nanoMan 2016) Macau (online)
Mittelstädt, C; Seefeld, T; Radel, T; Vollertsen, F
Novel approach to increase the energy-related process efficiency and performance of laser brazing
Quelle: Proc. of th 9th International Conference on Photonic Technologies (LANE 2016). Physics Procedia 83 (2016) 523-531
Mittelstädt, C; Seefeld, T; Vollertsen, F
Laser Beam Brazing of Hot-dip Galvanized Thin Sheet Steel in Laser Leading Process Configuration
Quelle: Proc. of th 35th Int. Congress on Applications of Lasers & Electro-Optics (ICALEO 2016) Sheraton San Diego (2016) paper 1802
Prieske, M
CVD diamond deposition under atmospheric conditions on steel with a silicon intermediate layer
Quelle: Proc. of 12th Intern. Conf. The "A" coatings 2016, eds. K. Bobzin, K.-D. Bouzakis, B. Denkena, H. J. Meier, M. Merklein. TEWISS-Technik und Wissen GmbH (PZH Verlag) Hannover, Bd. 3 (2016) 99-106, also in: Dry Metal Forming Open Access Journal 1 (2015)
Prieske, M; Vollertsen, F
In situ incorporation of silicon into a CVD diamond layer deposited under atmospheric conditions
Quelle: Diamond & Related Materials 65 (2016) 47-52
Prieske, M; Vollertsen, F
Tribological performance of amorphous carbon and CVD-diamond against aluminum
Quelle: International Symposium on Green Manufacturing and Applications (ISGMA 2016) OP045
Puncken, O; Mendoza Gandara, D; Damjanic, M; Mahnke, P; Bergmann, R B; Kalms, M; Peuser, P; Wessels, P; Neumann, J; Schnars, U
1 kHz 3.3 μm Nd:YAG KTiOAsO4 optical parametric oscillator system for laser ultrasound excitation of carbon fiber-reinforced plastics
Quelle: Applied Optics 55, 6 (2016) 1310-1317
Radel, T; Möller, F; Woizeschke, P; Vollertsen, F
In situ investigation of the cathodic cleaning of aluminum surfaces in laser-plasma-processing
Quelle: IIW Annual Assembly 2016 Com. IV und XII Melbourne/Australia (2016) IIW-Doc. XII-2284-16/IV-1306-16/212-1449-16/I-1281-16
Radel, T; Woizeschke, P; Vollertsen, F
Keyhole brazing – an approach for energy efficient brazing by using the deep penetration effect
Quelle: LÖT 2016. DVS Bericht Bd. 325, DVS Media GmbH, Düsseldorf (2016) 302-306
Radel, T; Woizeschke, P; Vollertsen, F
Material effects on the cathodic arc cleaning in laser-plasma processing of aluminum alloys
Quelle: Löt 2016, DVS Berichte Bd. 325, DVS Media GmbH, Düsseldorf (2016) 90-95
Rahman, S; Klein, T; Klembt, S; Gutowski, J; Hommel, D; Sebald, K
Observation of a hybrid state of Tamm plasmons and microcavity exciton polaritons
Quelle: Scientific Reports 6: 34392 (2016), DOI: 10.1038/srep34392
Schultz, V; Seefeld, T; Goth, K; Vollertsen, F
Robustes Laserstrahlfügen durch Strahloszillation
Quelle: Laser – Entwicklung und industrielle Anwendung 3 (2016) 32-34
Schultz, V; Woizeschke, P; Vollertsen, F
Laserstrahltiefschweißen mit hoher Oberflächenqualität – Prozesssicher auch bei großen Spaltmaßen
Quelle: Der Praktiker 1-2 (2016) 14-15
Schwander, M; Kwiatkowski, P; Prieske, M
Comparison of analytical methods to determinate the electron density and temperature for a laser based atmospheric plasma jet
Quelle: Spectrochimica Acta Part B 123 (2016) 68-75 (online)
Simic, A; Falldorf, C; Bergmann, R B
Inspektion im Inneren von Mikrotiefziehbauteilen mittels digitaler Holografie
Quelle: Laser Magazin 4 (2016) 31
Simic, A; Falldorf, C; Bergmann, R B
Internal Inspection of Micro Deep Drawing Parts using Digital Holography
Quelle: Proc. Digital Holography & Three -Dimensional Imaging, Heidelberg (2016). OSA Technical Digest on Imaging and Applied Optics (2016) DW1H.3 (online)
Staar, B; Flosky, H; Lütjen, M
Fast and Reliable Quality Inspection of Micro Parts
Quelle: 6th International Conference on Competitive Manufacturing (COMA ´16) Stellenbosch, Süd Afrika
Staar, B; Flosky, H; Lütjen, M; Freitag, M
Automatische Qualitätsinspektion von Mikronäpfen
Quelle: productivITy 21, 4 (2016) 57-60
Stephen, A; Mehrafsun, S; Vollertsen, F
Kombiniertes Mikroschneiden und Biegen mit dem Laser
Quelle: DGM Magazin diALOG (2016) 111
Stephen, A; Vollertsen, F
Mikroperforieren von Blechen mit dem Kurzpulslaser
Quelle: Laser Magazin 4 (2016) 30
Tetzel, H; Bohlen, A
Kontrollierte Präzision einer Mikroumformmaschine
Quelle: MM Maschinenmarkt 39 (2016) 56-58
Tetzel, H; Rathmann, L; Heinrich, L
Simulation accuracy of a multistage micro deep drawing process
Quelle: JPT - Journal of Technology of Plasticity 41, 1 (2016) 1-11
Tetzel, H; Vollertsen, F
Ronden und Näpfe reproduzierbar positionieren
Quelle: Mikroproduktion 06 (2016) 64-67
Veenaas, S
Der Einsatz von laserinduzierten Schockwellen spart Werkzeugkosten
Quelle: Mikroproduktion 05 (2016) 58-60
Veenaas, S
Laserinduzierte Schockwellen für die Umformtechnik
Quelle: Mikroproduktion 06 (2016) 62-63
Veenaas, S; Vollertsen, F
Determination of strain rate at laser shock forming
Quelle: Journal for Technology of Plasticity 41, 2 (2016) 1-9
Veenaas, S; Vollertsen, F; Krüger, M; Meyer, F; Hartmann, M
Determination of forming speed at a laser shock stretch drawing process
Quelle: Proc. of the 7th International Conference on High Speed Forming (ICHSF 2016), eds.: A.E. Tekkaya, M. Kleiner. IUL Dortmund (2016) 105-114
Veenaas, S; Yamaguchi, R; Vollertsen, F
Influence of undercut geometry on joining strength by laser shock joining
Quelle: Proc. of the 5th International Conference on Nanomanufacturing (nanoMan 2016) Macau (online)
Verhoeven, R; Kügler, H; Woizeschke, P; Seefeld, T
Schweißen mit Autopilot: Schweißbahn mittels Sensor korrigieren
Quelle: I2B Express 02 (2016) 15
Vetter, K; Freiße, H; Feuerhahn, F; Köhler, H; Vollertsen, F
Einfluss der Scanstrategie bei der Erzeugung von Legierungsvarianten für Hochdurchsatz-Untersuchungen
Quelle: Laser 4, 4 (2016) 32-34
Vollertsen, F
Loopless Production: Definition and Examples from Joining
Quelle: Proc. of the 69th IIW Annual Assembly and International Conference (IIW 2016): From Concept to Decommissioning: The Total Life Cycle of Welded Components, Melbourne Convention Exhibition Centre, Melbourne/Australia
Vollertsen, F; Mittelstädt, C
Entwicklungen beim Laserfügen mit hoher Nahtqualität
Quelle: 5. VDI Fachkonferenz „Fügen im Automobilbau“ - lösbare vs. Unlösbare Verbindungen, Bremen (2016) 97-118
Volpp, J; Srowig, J; Vollertsen, F
Spatters during laser deep penetration welding with a bifocal optic
Quelle: Advanced Materials Research 1140 (2016) 123-129
Volpp, J; Vollertsen, F
Keyhole stability during laser welding – Part I: Modeling and evaluation
Quelle: Production Engineering 10, 4-5 (2016) 443-457
Volpp, J; Vollertsen, F
Verschleißeigenschaften von Lasertiefdispergierten Aluminiumrandschichten
Quelle: DGM Magazin diALOG 4 (2016) 109
Windmann, M; Röttger, A; Kügler, H; Theisen, W
Laser Beam Welding of Magnesium to Coated High-Strength Steel 22MnB5
Quelle: International Journal of Advanced Manufacturing Technology (2016) doi 10.1007/s00170-016-8682-5
Windmann, M; Röttger, A; Kügler, H; Theisen, W
Removal of oxides and brittle coating constituents at the surface of coated hot-forming 22MnB5 steel for a laser welding process with aluminum alloys
Quelle: Surface and Coatings Technology 285 (2016) 153-160
Woizeschke, P; Kügler, H; Vollertsen, F
Bewerten und Vergleichen der Spaltüberbrückbarkeit unterschiedlicher thermischer Fügeverfahren – Der Benchmark-Spalt
Quelle: Der Praktiker 8 (2016) 356-358
Woizeschke, P; Schultz, V; Messaoudi, H; Mehrafsun, S; Feuerhahn, F; Köhler, H; Thomy, C; Vollertsen, F
Laser processing of lightweight aircraft structures
Quelle: The 84th Laser Materials Processing Conference. Japan Laser Processing Society (2016) 21-26
Woizeschke, P; Vollertsen, F
A strength-model for laser joined hybrid aluminum-titanium transition structures
Quelle: CIRP Annals - Manufacturing Technology 65 (2016) 241-244
Zhao, T; Mehrafsun, S; Vollertsen, F
Energy-based approach as an example for a process signature for laser micro processing
Quelle: Proc. of the SPIE/COS Photonoics Asia. Advanced Laser Processing and Manufacturing, eds. M. Zhong, J. Lawrence, M. Hong, J. Liu. SPIE Vol. 10018 (2016) 100180D (doi 10.1117/12.2245445)
2015
2014
2013
2012
Fluxless brazing of aluminium with a coaxial laser plasma joining process