针对铝合金变速箱壳体的结构特点,应用MAGMA铸造模拟软件对铝合金变速箱壳体压铸充型和凝固过程进行数值模拟,并利用模拟结果对产品缺陷进行预测分析,得到了压铸温度场和速度场的变化规律,辅助优化压铸工艺。通过生产试验,验证了模拟所确定压铸工艺的合理性,按照优化过的工艺参数进行生产,得到了合格的压铸件。 Aiming at the structural characteristics of the aluminum alloy gearbox housing, the simulation process of the aluminum alloy gearbox shell was simulated by using MAGMA casting simulation software. The simulation results were used to predict and analyze the product defects, and the die temperature field and The change rule of speed field helps to optimize the die casting process. Through the production test, the rationality of the die-casting process confirmed by the simulation was verified and the die-castings were qualified according to the optimized process parameters.