Influence of Baseplate Heating and Shielding Gas on Distortion, Mechanical and Case hardening Properties of 16MnCr5 fabricated by Laser Powder Bed Fusion

Autor: Jakob Winkler, Thomas Tobie, Georg Schlick, Maximilian Binder, Max Horn, Gunther Reinhart, Karsten Stahl, Syed Inayathulla, Matthias Schmitt, Albin Gottwalt, Bernhard Kempter
Přispěvatelé: Publica
Rok vydání: 2020
Předmět:
Zdroj: Procedia CIRP. 93:581-586
ISSN: 2212-8271
DOI: 10.1016/j.procir.2020.03.089
Popis: Additive manufacturing, especially laser powder bed fusion (LPBF), allows the build-up of complex parts and is, therefore, used in various industries. In order to exploit the potential in the automotive industry, the range of materials must be extended to include case-hardening steels, which are used in drivetrain parts. This paper examines the distortion of samples manufactured of the case-hardening steel 16MnCr5 (1.7131) via LPBF at varied baseplate temperatures and shielding gases, and also closely evaluates the resulting microstructure and hardness. Depending on the baseplate temperature, tempering or stress-relief annealing effects can be observed. For further insights into the process chain, dependencies between case hardening properties and manufacturing parameters are described.
Databáze: OpenAIRE