一种轮毂件充型凝固过程及组织缺陷预测研究  

Forecast on Mold Filling and Solidification Process and Defects Prediction of A Wheel Hub

作　　者：佟乐乐[1,2] 郝大庆 侯华[1,2] 赵宇宏[1,2] 李海峰[1,2] 

机构地区：[1]中北大学材料科学与工程学院,山西太原030051 [2]中北大学特种液态成型技术研究中心,山西太原030051 [3]山西省人力资源和社会保障厅,山西太原030051

出　　处：《热加工工艺》2015年第1期59-62,共4页Hot Working Technology

基　　金：科技部国际科技合作项目(2011DFA50520);国家自然科学基金项目(51204147;51274175);山西省回国留学人员重点科研资助项目(2011-重点6)

摘　　要：利用铸造模拟软件Easycast,采用重力铸造和低压铸造两种不同铸造工艺对铝合金轮毂进行充型、凝固模拟分析。通过模拟获得了两种工艺下的流动场和凝固场结果,对缺陷进行了预测分析,得到了轮毂件重力铸造与低压铸造方法优劣的差异,用实际证明了计算机模拟在铸件工艺优化过程中的优越性。The processes of mold filling and solidification process of the aluminum alloy wheel hub in gravity casting and low-pressure casting were simulated by using the casting simulation software Easycast. Through the simulation, two kinds of flow field and solidification field were obtained. And the defects were forecasted. The advantages and disadvantages between gravity casting and low-pressure casting of the wheel hub were gotten. The advantage of computer simulation in optimization process of casting technology was proved by fact.

关 键 词：铸造工艺 流动场 缺陷 数值模拟 

分 类 号：TG244.3[金属学及工艺—铸造] TG292