Browsing by Subject "thermal model"
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Item Finite Element Modeling of the Selective Laser Melting Process for Ti-6Al-4V(University of Texas at Austin, 2018) Olleak, Alaa; Xi, ZhiminPhysics-based modeling of the selective laser melting (SLM) process is critical for better understanding the influence of the parts quality with respect to various process parameters and scanning strategies. The challenge is to balance model validity, domain size, and computational efficiency so that the model can be practically useful for improving reliability and quality of the printed products. In this paper, a transient thermal finite element model of a SLM process for Ti-6Al-4V is developed using ANSYS for predicting the melt pool size and thermal history. The thermal solution is remapped to the structural problem to predict the induced residual stress of the products. The thermo-mechanical model is capable of handling practical domain size with reasonable computational efficiency on the process level, by developing the remeshing and remapping technique that adapts with the scanning vector.