利用数值模拟MAGMA软件,对铝合金筒形压铸件充型凝固过程进行了模拟分析,预测了筒形件可能出现缺陷的位置,提出了浇注系统优化设计的方案。在优化前后方案对比之后,结果表明,优化后的浇注系统使铝合金筒形件的充型流动状态良好,凝固顺序合理,从而明显减小气孔、氧化夹杂及冷隔等缺陷的倾向,提高了铝合金筒形件的质量。 The numerical simulation of MAGMA software was used to simulate the filling and solidification process of aluminum alloy tubular die casting. The possible defects of the cylindrical part were predicted. The optimal design of the casting system was put forward. The results show that the optimized pouring system makes the filling and flow of aluminum alloy cylindrical parts good and the order of solidification is reasonable, so the tendency of defects such as pores, oxidized inclusions and cold separation is obviously reduced, Quality aluminum tube.