镁合金一模多腔压铸件数值模拟与工艺优化  

Numerical Simulation and Process Optimization of Multi-cavity Die Casting for Magnesium Alloy

作　　者：周玉辉 黄清民 ZHOU Yuhui;HUANG Qingmin(School of Mechanical and Energy Engineering,Jimei University,Xiamen 361021,China)

机构地区：[1]集美大学机械与能源工程学院,福建厦门361021

出　　处：《铸造技术》2020年第11期1065-1069,共5页Foundry Technology

基　　金：福建省教育厅科技项目(B11017);集美大学李尚大学科建设基金资助项目(zc2018025)。

摘　　要：对AZ91D镁合金压铸件进行了工艺分析,确定了浇注系统设计方案和压铸工艺参数,并利用有限元软件Procast对铸件型腔充填过程进行了数值模拟。根据计算结果,确定了浇注系统最佳浇口位置,对一模多腔压铸件工艺参数进行了优化。结果表明,利用顺序充填解决了充型过程中存在的流动不平衡的问题,并通过生产验证,获得了合格铸件。The die casting process analysis of AZ91 D magnesium alloy was carried out,the design scheme of gating system and the parameters of die casting were determined,and the filling process of die casting cavity was simulated by using the finite element software Procast.According to the calculation results,the optimum gate position of the gating system was determined,and the technological parameters of the one-mold multi-cavity die casting were optimized.The results show that the problem of flow imbalance in mold filling process is solved by using sequential filling,and qualified castings are obtained through production verification.

关 键 词：压铸 数值模拟 一模多腔 工艺优化 

分 类 号：TG243[金属学及工艺—铸造]