PROCESS MODELING OF MULTI-MATERIAL LASER POWDER BED FUSION

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Date

2023

Authors

Griffis, J.C.
Shahed, K.S.
Okwudire, C.E.
Manogharan, G.P.

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University of Texas at Austin

Abstract

Thermomechanical simulation of the laser powder bed fusion process has been a valuable tool to help researchers and practitioners across the AM production cycle. For instance: Design for AM (DfAM), material development, process mapping, prediction, and support generations, among others. In this study, multi-material laser powder bed fusion (MM-LPBF), specifically of 904LSS and CuSn10 are examined through process simulation and non-destructive techniques to determine the impact of component orientation on defect mitigation. It is determined that material orientation along the build direction is a large contributor in as-build defects. Introductory MM-LPBF simulation is established to better understand the capabilities of current LPBF simulation tools in accurately predicting and mitigating the new challenges of MM-LPBF simulation.

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