Abstract
The finite element simulation of the selective laser melting process with Al6063 metal powder was carried out by using ABAQUS. The loading of the laser Gaussian moving heat source is realized, and a model of the three-dimensional transient temperature field is established. The effects of scanning speed and scanning pitch on temperature distribution and temperature changes on different scanning channels were investigated. The simulation results show that due to the heat accumulation effect and heat conduction, the previous scan will have effect on the surrounding powder, which results the rise of temperature. Different scanning speed and the scanning pitch have influence on the temperature distribution. As the scanning speed increases, the temperature gradually decreases, and the increase in the scanning pitch also lead to lower temperature of the powder layer.
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