Heat transfer simulation for selective laser melting of TI-6AL-4V Powder

Abstract

This study investigated simulation tools for predicting transient temperature fields in selective laser sintering manufacturing. A complete interaction between transient thermal calculation of heat transfer with phase change, laser source model, porosity and temperature-dependent thermal material properties in COMSOL Muhiphysics modeling software. The developed technique can simulate instantaneous transient temperature fields in selective laser melting (SLM). Temperature model validation performed on titanium alloy Ti-6AI-4V as the experiment of Fischer et al. The predicted model simulation results agree well with the experimental measurements.