安徽工程大学学报2025，Vol.40Issue(3)：20-27,8.
选区激光熔化AlSi10Mg的数值模拟研究
Numerical Simulation of Selected Laser Melting of AlSi10Mg
摘要
Abstract
Using the finite element software Ansys workbench,a coupling model of single-layer three-channel selective laser melting thermal structure is established.Considering the thermophysical parameters of AlSi10Mg material,the ef fects of laser power and scanning speed on the temperature field and stress field were studied.The results show that the melt pool size,cooling rate,liquid phase existence time and maximum melt pool temperature are positively correlated with the increase of laser power,the melt pool size,the maximum melt pool temperature are negatively correlated with the increase of scanning speed,and the cooling rate increases with the increase of scanning speed.The increase of laser power and scanning speed lead to the increase of residual stress,and the residual stress is more sensitive to the change of velocity at the scanning speed of 1 000～1 200 mm/s,and the maximum residual stress occurs at the metallurgy of the powder bed and substrate,with a maximum of 1.24×109 Pa,and the residual stress in the remelting lap zone is larger than that of other areas.关键词
选区激光熔化/AlSi10Mg/工艺参数/温度场/应力场Key words
selective laser melting/AlSi10Mg/process parameters/temperature field/stress field分类
矿业与冶金引用本文复制引用
朱红,余小鲁,张恒..选区激光熔化AlSi10Mg的数值模拟研究[J].安徽工程大学学报,2025,40(3):20-27,8.基金项目
安徽省科技计划重点实验室基金项目(1106C0805011) （1106C0805011）
安徽省高校自然科学研究重点基金项目(KJ2015A239) （KJ2015A239）
