基于计算机模拟的消失模铸造充型特性  

Numerical Simulation of Filling Behavior in Lost Foam Casting

作　　者：张立强[1] 卢远志[1] 张楚惠 刘金水[1] 

机构地区：[1]湖南大学汽车车身先进设计与制造国家重点实验室 [2]湖南基特制造有限公司

出　　处：《特种铸造及有色合金》2008年第2期116-119,共4页Special Casting & Nonferrous Alloys

摘　　要：通过计算机仿真软件ProCAST对某车身覆盖件修边冲孔模模座的消失模铸造充型过程进行数值模拟,研究了消失模铸造的充填特性,并对比分析了消失模铸造和传统铸造充型过程的差异。模拟结果表明,消失模铸造存在着与传统铸造截然不同的充型过程,由于泡沫介质的存在,使金属液充型受阻,充型时间长,并且充型速度呈现周期性交替变化。The filling behavior of an automobile component in lost foam casting was simulated by the Procast software,and the difference of filling behavior between in lost foam casting and in common casting was described.The simulated results indicate that there exists sharp difference for filling process in lost foam casting and in common casting,in which the filling process needs a longer time as a result of the existence of the foam pattern restraining the filling of liquid metal,and the filling rate exhibits alternative change.

关 键 词：消失模铸造 数值模拟 充型特性 充型速度 

分 类 号：TG249.5[机械工程—精密仪器及机械]