铝合金轮毂低压铸造凝固过程数值分析及模具优化  

Numerical analysis of low pressure die casting solidification process of aluminum wheel hub and die optimization

作　　者：张涯飞[1] 王雷刚[1] 黄瑶[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《模具技术》2008年第6期1-5,共5页Die and Mould Technology

基　　金：江苏省科技成果转化项目(BA2005054)

摘　　要：利用ANSYS对某铝合金轮毂工艺方案进行模拟分析,模拟结果显示,铝合金轮辋与轮辐的肋部交接位置易出现孤岛现象,为此设计了轮辐与轮辋交接处的冷却系统及相应的参数。通过对改进前后2种工艺方案模拟结果的对比分析,证明改进后的工艺方案明显减小了孤岛效应。将改进后的工艺方案投入试生产,产品抽检结果与模拟结果基本吻合。The low pressure die casting solidification process of an aluminum alloy wheel was simulated by the software ANSYS.According to the result of simulation,isolated island appeared in the intersections between the wheel rim and the wheel ribs.For this,a cooling system and corresponding parameters were designed for the above intersections.Through analyzing and comparing the simulation results of pre and post process schemes,the improved one has been proved to apparently reduce the isolated island phenomenon.The...

关 键 词：ANSYS 低压铸造 温度场 铸造缺陷 模具优化 

分 类 号：TG249.2[金属学及工艺—铸造]