Dr.-Ing. Thomas Seefeld
Senior Researcher Laser Materials Processing
e-mail: Seefeld@bias.de
phone: +49 421 218-58040
phone: +49 421 218-58040
ORCID: 0000-0002-1283-4761
Scopus: 8718486400
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
Bendixen, F., Toenjes, A., Bohlen, A., Seefeld, T.
Laser Metal Deposition of Aluminum Alloys 7075 and 5083 with the Addition of Volatile Alloying Elements through Powder Blending
Advanced Engineering Materials (2026) 000:e202502234 (DOI 10.1002/adem.202502234)
Warneke, P., Westermeyer, L., Bohlen, A.; Seefeld, T.
Influencing the Powder Particle Incorporation in High-Speed Laser Melt Injection
Advanced Engineering Materials (2025) 000:e202501434 (DOI: 10.1002/adem.202501434)
Pordzik, R; Seefeld, T
Identifying the direction of weld path deviations in laser deep penetration welding of hidden T-joints by means of OCT
Journal of Laser Applications 36 (2024) 3, 032031 (DOI: 10.2351/7.0001566)
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, Journal of Laser Applications 36 (2024) (DOI: 10.2351/7.0001529)
Hildinger, P; Seefeld, T; Bohlen, A
Image based in-process powder stream monitoring during Laser Metal Deposition for the measurement of the gravimetric powder mass flow rate and the detection of deviations in the powder stream, Procedia CIRP 124 (2024) 219–222
(DOI:10.1016/j.procir.2024.08.103)
(DOI:10.1016/j.procir.2024.08.103)
Karimi, J; Tekin, M; Seefeld, T
Laser metal deposition of Al 7075: Effects of TiC nanoparticles, J. Mat. Res. Techn. 32 (2024) 3135–3146
(DOI: 10.1016/j.jmrt.2024.08.134)
(DOI: 10.1016/j.jmrt.2024.08.134)
Bohlen, A; Seefeld, T
Influence of the Inner Roughness of Powder Channels on the Powder Propagation Behavior in Laser Metal Deposition
Journal of Laser Applications 36, 042007 (2024) (DOI: 10.2351/7.0001570)
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)
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)
Mittelstädt, C; Mattulat, T; Seefeld, T; Kogel-Hollacher, M
Novel Approach for weld depth determination using OCT measurement in laser deep penetration Welding of aluminum and steel
Journal of Laser Applications 31, 2 (2019) (DOI: 10.2351/1.5082263)
ORCID: 0000-0002-1283-4761
Scopus: 8718486400
Professional backround
Studied materials science at the University of Erlangen-Nuremberg and obtained a PhD in engineering from the Department of Production Engineering at the University of Bremen. Dissertation on ‘Laser surface melting with increased process speed using the example of aluminium cylinder liners’.
Since 1995, research assistant in the field of laser material processing at BIAS, since 2000 head of department at BIAS, current position: Senior Researcher Laser Materials Processing.
R&D work focuses on material and process behaviour in laser processing of metallic materials, in particular process and technology development for laser beam welding, laser surface treatment and additive manufacturing.
2014-2018 also managing director (part-time) of HansePhotonik e.V. – Competence Network Photonic Technologies and 2015-2018 board member of OptecNet Deutschland e.V. – Innovation Networks Optical Technologies.