大型复杂零件的挤压铸造成形技术  

Squeeze Casting Forming of Large and Complex Parts

作　　者：邵明[1] 张明伟[1] 张大童[1] 游东东[1] 张卫文[1] 张文[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2015年第10期95-99,107,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51374110);NSFC-广东联合基金资助项目(U1034001)~~

摘　　要：以某特种车辆支架零件为例,提出一种适用于大型复杂零件的挤压铸造成形工艺,设计了模具,并运用Pro CAST软件进行了铸件流动场和温度场的数值模拟分析,验证了成形工艺参数.最后运用A356铝合金进行了大型复杂支架的挤压铸造成形实验,试制铸件满足要求.研究结果表明,所设计模具对大型复杂零件具有较好的成形能力,从而验证了该成形工艺对实现大型复杂零件挤压铸造成形的可行性和有效性.With the large and complex bracket part of a special vehicle as an example,a forming process method of squeeze casting was proposed for large and complex parts,and a corresponding squeeze casting mold was designed.Then,the numerical simulations of the temperature and flow fields of castings were performed by using the software Pro CAST,and the forming parameters were verified. Finally,a squeeze casting forming experiment of large and complex bracket parts was conducted on the A356 aluminum alloy material,and the castings meeting the requirements were obtained. The results show that the designed mold has a good performance in forming large and complex parts,which proves that the proposed squeeze casting forming process is feasible and effective.

关 键 词：挤压铸造 模具设计 大型复杂零件 成形工艺 

分 类 号：TG249.9[金属学及工艺—铸造]