Dr.-Ing. THOMAS SEEFELD

Head of Department
Material Technology and Processes
e-mail: Seefeld@bias.de
phone:  +49 421 218-58040
directly to the department

Research profile

The focus of my R+D work is in the field of materials and process behavior during laser processing of metals, including process and technology development for laser joining, laser surface modification and additive manufacturing. 

Selected publications

Warneke, P; Bohlen, A; Seefeld, T 
Influence of the process speed in laser melt injection for reinforcing skin-pass rolls 
Journal of Laser Applications 35 (2023) 012009-1-89, doi: 10.2351/7.0000781 (online) 

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. 
Int J Adv Manuf Technol 124, 1065–1076 (2023). DOI: 10.1007/s00170-022-10214-2 (online) 

Bohlen, A; Seefeld, T; Haghshenas, A; Groll, R 
Characterization of the powder stream propagation behavior of a discrete coaxial nozzle for Laser Metal Deposition 
Journal of Laser Applications 34 (2022) 42048. DOI: 10.2351/7.0000775 (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. 
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)

Warneke, P; Bohlen, A; Seefeld, T 
Improving the wear resistance of copper tools for pressure die casting by laser melt injection 
Production Engineering (2022) https://doi.org/10.1007/s11740-022-01164-5 (online) 

Halisch, C; Gaßmann, C; Seefeld, T 
Investigating the Reproducibility of the Wire Arc Additive Manufacturing Process 
Advanced Materials Research 116 (2021) 95-104 (doi:10.4028/www.scientific.net/AMR.1161.95) online 

Tyralla, D; Seefeld, T 
Thermal based process monitoring for laser powder bed fusion (LPBF) 
Advanced Materials Research, Vol. 1161 (2021) 123–130 (DOI:10.4028/www.scientific.net/amr.1161.123) online 

Tyralla, D; Freiße, H; Seefeld, T; Thomy, C; Dreher, M; Schnick, M; Narita, R 
Laser hot wire cladding (LHWC) with single and multiple wires for high deposition rates and low dilution 
Welding and Cutting 19, 3 (2020) 220-226 

Ditsche, A; Seefeld, T 
Local Laser Particle Fusion: Fusing of Hard Particles for the Reduction of High Contact Pressures in MMC Tool Surfaces 
JOM 72, 2 (2020) 2488 - 2496 

Halisch, C; Radel, T; Tyralla, D; Seefeld, T 
Measuring the melt pool size in a wire arc additive manufacturing process using a high dynamic range two colored pyrometric camera 
Welding in the World (2020) 64:1349-1356 (online)

Warneke, P; Seefeld, T 
Wear Resistance of Hard Particle Reinforced Copper Alloys Generated by Laser Melt Injection 
Proc. of the 14th International Conference The A Coatings. Defect and Diffusion Forum, Vol 404. Trans Tech Publications Ltd, Switzerland (2020) 68-76 (online) 

Tyralla, D; Seefeld, T 
Temperature field based closed-loop control of laser hot wire cladding for low dilution 
Proc. of the 11th CIRP Conference on Photonic Technologies (LANE 2020), eds.: M. Schmidt, F. Vollertsen, E. Govekar. Procedia CIRP 94, Elsevier B.V. Amsterdam (2020) 451-455 (online) 

Tyralla, D; Köhler, H; Thomy, C; Seefeld, T; Narita, R 
A multi-parameter control of track geometry and melt pool size for laser metal deposition 
Proc. of the 11th CIRP Conference on Photonic Technologies (LANE 2020), eds.: M. Schmidt, F. Vollertsen, E. Govekar. Procedia CIRP 94, Elsevier B.V. Amsterdam (2020) 430-435 (online)

Professional backround

Thomas Seefeld studied Materials Science at the University of Erlangen-Nuremberg and received his Dr.-Ing. in Production Technology from the University of Bremen. Thesis: „Laser alloying and cladding at elevated processing speed for aluminum crankcase application“.
Since 1995 he was a researcher in laser materials processing at BIAS and he became head of the Laser Materials Processing department at BIAS in 2000. Focus of R+D work in the field of materials and process behavior during laser processing of metals, including process and technology development for laser joining, laser surface modification and additive manufacturing. Current position is head of the Materials and Process Technology department at BIAS
Sideline activities include: 2014-18 Manager, HansePhotonik e.V., regional Network of Competence in Photonic Technologies in the north of Germany; 2015-18 Board Member, OptecNet Deutschland e.V, German Innovation Networks for Optical Technologies.