Powder Bed Models - Numerical Assessment of As-Built Quality
This paper presents new models for Direct Metal Laser Melting proceses (DMLM) with particular focus on how process paramters lead to different porosity levels. The numerical results are compared with micrographs validating numerical predictions. The results of process models are also used to model the thermal loads acting on the work piece during the build process. The final distortions and their dependencies on deposition strategies are compared with experimental measurements confirming the overall simulation chain.
H.-W. Mindt and M. Megahed - ESI Group, Paris, France
B. Shula, A.D. Peralta and J. Neumann - Honeywell Aerospace, Phoenix, AZ, 85034
Additive Manufacturing, Powder Bed, Direct Metal Laser Melting, Modelling, Verification