Abstract
This paper discusses the modeling challenges related to additive manufacturing in general and DMLS (Direct Metal Laser Sintering) in particular. A seamless coupling of length scales allowing detailed analysis of the melt pool, laser track, material deposition and resulting residual stresses is presented.
The modelling components are verified separately and the complete modeling process is validated against experimental measurements. Comparison of numerical predictions and experimental measurements show good agreement. Finally, as a practical demonstration of the modelling platform applicability to improved work piece quality, the numerical optimization of deposition tracks to reduce in build residual stresses is demonstrated.
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N’Dri, N. et al. (2015). DMLS Process Modelling and Validation. In: TMS 2015 144th Annual Meeting & Exhibition. Springer, Cham. https://doi.org/10.1007/978-3-319-48127-2_49
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DOI: https://doi.org/10.1007/978-3-319-48127-2_49
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48608-6
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