基于ProCAST的一模多腔YL112铝合金压铸件数值模拟及工艺优化

Numerical Simulation and Process Optimization of One Mold Multi-cavity Die Casting YL112 Aluminum Alloys Based on ProCAST

针对YL112压铸铝合金一模多铸产品的组织性能均一性需求,采用ProCAST软件对典型一模多铸工艺进行模拟,比较了两种不同充型顺序的压铸方案。结果表明:基于顺序凝固一模多腔压铸件由于充型与凝固过程的温度场分布不均,导致近浇口端铸件出现明显缩松缩孔缺陷,造成铸件性能均一性差。后续采用等流程浇注系统,实现一模多腔铸件同时充型凝固过程,改善了铸件温度场分布,减少了工艺缺陷。经过实际生产验证,获得了组织性能均一性好的压铸件。

Aiming at the demand for uniformity of microstructure performance of YL112 die-casting aluminum alloy one-mold multi-casting products,ProCAST software was used to simulate the typical one-mold multi-casting process,and the two die-casting schemes with different filling sequences were compared.The results show that the uneven temperature field distribution of one-mold multi-cavity die-casting based on sequential solidification of one-mold multi-cavity die casting causes obvious shrinkage and shrinkage hole defects in the near gate end casting,resulting in poor uniformity of casting performance.Subsequently,the same process flow path pouring system is adopted to realize the simultaneous filling and solidification process of a mold multi-cavity casting,which improves the temperature field distribution of the casting and reduces the process defects.After actual production verification,die-casting parts with good microstructure uniformity are obtained.