铝合金电解阴极横梁凝固数值模拟及其应力分析

Solidification Simulation and Stress Analysis of Aluminum Alloy Negative Electrode Beam

利用铸造仿真软件ProCAST对铝合金电解阴极横梁金属型铸造过程进行了数值模拟,得到其温度场和应力场;分析了倾斜浇注竖直凝固铸件的应力场及位移分布。模拟结果显示阴极横梁应力集中位置主要在其两端过渡凸台端面连接处区域;铝横梁的变形方式为在纵向方向上类似S型变形。通过对铸件凝固过程热应力数值模拟可以更好地预测铸件凝固过程中应力和变形的动态变化,为实际生产提供科学指导。

The permanent mold casting of the aluminum alloy negative electrode beam was simulated by the casting simulation software ProCAST, and the temperature and stress fields were gained. Stress field and displacement distribution of the casting by tilting pouring and vertical solidification were analyzed. The simulation results show that the places of stress concentration were in the transition boss junction zone of two ends. The deformation mode of aluminum alloy beam was similar to ＂S＂ shape in the vertical direction. Through the thermal stress numerical simulation, the dynamic changes of stress and deformation were predicted, which can provide guidance for the actual production.