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tavakoli--ruhollah
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Thermal Simulation of Selective Laser Melting Process to Predict Microstructure
, M.Sc. Thesis Sharif University of Technology ; Tavakoli, Ruhollah (Supervisor) ; Ashuri, Hossein (Supervisor)
Abstract
In the process of Additive manufacturing for metals, the ability to predict and control the microstructure can reduce the need for subsequent heat treatment and accelerate the component quality assessment process. The ability to predict and control the microstructure of materials in the laser deposition method needs to understand the thermal conditions during the solidification process. For this purpose, the present study investigated the relationship between cooling rate and temperature gradient during local solidification, and control parameters of the laser deposition process such as power, beam radius, scanning speed and strategy of laser, ambient temperature and preheating temperature....