铝合金大型薄壁铸件成型过程中充型困难,容易出现浇不足、冷隔等缺陷。基于数值模拟,采用ADC12铝合金对国内某款汽车行李箱盖内板开展直接挤压铸造研究,确定了合理的挤压铸造工艺参数,制造了模具并成功试制了铝合金汽车盖内板样件。 Large-scale thin-walled aluminum alloy casting process filling difficulties, prone to inadequate pouring, cold insulation and other defects. Based on the numerical simulation, the ADC12 aluminum alloy was used to carry out the direct squeeze casting research on the inner lid of a certain car trunk lid in China, the reasonable extrusion die casting process parameters were determined, the mold was manufactured, and the aluminum alloy automobile lid inner plate sample .