Subproject A02 Additive manufacturing

The research objective of this subproject is the development of an understanding of the mechanisms during selective laser beam melting in XHV-adequate atmosphere. For this purpose, a laboratory set-up that meets the special process requirements of silane-doped argon as process gas, is developed and constructed. The investigations are carried out on the titanium alloy Ti-6Al-4V, a material that is difficult to process by selective laser melting due to its high oxygen affinity. Superior component properties are expected due to the oxide-free interfaces in the microstructure as well as increased process stability.


Publications

Journal paper, peer-reviewed

  • Emminghaus, N., Bernhard, R., Hermsdorf, J., Kaierle, S. (2022): Residual oxygen content and powder recycling: effects on microstructure and mechanical properties of additively manufactured Ti-6Al-4V partsThe International Journal of Advanced Manufacturing Technology 121, pp. 3685–3701
    DOI: 10.1007/s00170-022-09503-7
  • Emminghaus, N., Bernhard, R., Hermsdorf, J., Kaierle, S. (2022): Determination of optimum process parameters for different Ti-6Al-4V powders processed by Laser-based Powder Bed FusionProcedia CIRP 111, pp. 134–137
    DOI: 10.1016/j.procir.2022.08.052
  • Emminghaus, N., Bernhard, R., Hermsdorf, J., Kaierle, S. (2022): Laser-based powder bed fusion of Ti-6Al-4V powder modified with SiO2 nanoparticlesThe International Journal of Advanced Manufacturing Technology 122, pp. 1679–1694
    DOI: 10.1007/s00170-022-09944-0
  • Emminghaus, N., Fritsch, S., Büttner, H., August, J., Tegtmeier, M., Huse, M., Lammers, M., Hoff, C., Hermsdorf, J., Kaierle, S. (2021): PBF-LB/M process under a silane-doped argon atmosphere: Preliminary studies and development of an innovative machine conceptAdvances in Industrial and Manufacturing Engineering, p. 100040
    DOI: 10.1016/j.aime.2021.100040
  • Emminghaus, N., Hoff, C., Hermsdorf, J., Kaierle, S. (2021): Residual oxygen content and powder recycling: Effects on surface roughness and porosity of additively manufactured Ti-6Al-4VAdditive Manufacturing 46, p. 102093
    DOI: 10.1016/j.addma.2021.102093

Contributions in books

  • Emminghaus, N., Fritsch, S., Büttner, H., August, J., Tegtmeier, M., Huse, M., Lammers, M., Hoff, C., Hermsdorf, J., Kaierle, S. (2021): Entwicklung eines innovativen Anlagenkonzepts für die Verarbeitung von Ti-6Al-4V im LPBF-Prozess unter silandotierter ArgonatmosphäreIn: Lachmayer, R., Rettschlag, K., Kaierle, S. (Hg.): Konstruktion für die Additive Fertigung 2020. Berlin, Heidelberg: Springer, pp. 301–320
    DOI: 10.1007/978-3-662-63030-3_16
    ISBN: 978-3-662-63030-3

Conference paper, not peer-reviewed

  • Emminghaus, N., Bernhard, R., Hermsdorf, J., Overmeyer, L., Kaierle, S. (2023): Laser-based powder bed fusion of Ti-6Al-4V structures with different surface-area-to-volume ratios in oxygen-reduced and oxygen-free environmentIn: Clausthaler Zentrum für Materialtechnik (Hg.): Tagungsband 4 . Symposium Materialtechnik. Düren: Shaker Verlag.
    DOI: 10.21268/20230711-12
    ISBN: 978-3-8440-9105-2
  • Emminghaus, N., Hoff, C., Hermsdorf, J., Kaierle, S. (2021): Influence of laser focus shift on porosity and surface quality of additively manufactured Ti-6Al-4VIn: WLT (Hg.): Lasers in Manufacturing Conference Proceedings 2021
  • Tegtmeier, M., Emminghaus, N., August, J., Lammers, M., Hoff, C., Hermsdorf, J., Overmeyer, L., Kaierle, S. (2021): Development of a machine concept for the processing of Ti-6Al-4V in the PBF-LB/M process under silandized argon atmosphereIn: WLT (Hg.): Lasers in Manufacturing Conference Proceedings 2021.
All publiacions of the Collaborative Research Centre
Prof. Dr.-Ing. Stefan Kaierle
Address
Laser Zentrum Hannover
Hollerithallee 8
30419 Hannover
Prof. Dr.-Ing. Stefan Kaierle
Address
Laser Zentrum Hannover
Hollerithallee 8
30419 Hannover

Subproject Manager

Nicole Emminghaus
Address
Laser Zentrum Hannover
Hollerithallee 8
30419 Hannover
Nicole Emminghaus
Address
Laser Zentrum Hannover
Hollerithallee 8
30419 Hannover