A356铝合金汽车轮圈轮辐液态模锻成形的数值模拟  

Numerical Simulation of Liquid Die Forging Forming of A356 Aluminum Alloy Automobile Wheel Spoke

作　　者：胡洪 王家宣[1,2] 施文鹏 龚伟平 HU Hong;WANG Jiaxuan;SHI Wenpeng;GONG Weiping(School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University,Nanchang 330063,China;Research Center for Engineering Technology of Aluminium Section in Jiangxi Province(Jiangxi Falcon Aluminum Co.,Ltd.,Nanchang 330500,China)

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063 [2]江西省铝型材工程技术研究中心(江西雄鹰铝业股份有限公司),江西南昌330500

出　　处：《热加工工艺》2019年第1期170-173,共4页Hot Working Technology

摘　　要：建立了A356铝合金汽车轮辐的有限元模型,使用ProCAST数值模拟软件对A356铝合金轮辐液态模锻成形工艺进行了研究。通过数值模拟分析了充填速度、充填温度及模具预热温度对铝合金轮辐液态模锻件成形性能的影响。探讨了不同工艺下金属液流动特点和温度的分布规律以及缩松位置。结果表明,铝合金轮辐最佳的成形工艺参数为:充填温度690℃,模具预热温度350℃,挤压速度15 mm/s。结果能为后续的模具优化设计、工艺实验提供理论依据。The finite element model of A356 aluminum alloy wheel spoke for automobile was established. The liquid die forging process of A 356 aluminum alloy spoke was simulated by using software ProCAST. The effects of filling speed,pouring temperature and preheating temperature of the die on the formability of liquid die forging of the aluminum alloy spoke were analyzed by numerical simulation. The characteristics of liquid metal flow, the distribution of temperature and the shrinkage position were discussed. The results show that the best forming process parameters of the aluminum alloy spoke are as follows: the pouring temperature of 690 ℃, the preheating temperature of the die of 350℃, and the extrusion speed of15mm/s. The results can provide theoretical basis for the optimization of die design and process experiment.

关 键 词：A356铝合金 数值模拟 液态模锻 汽车轮辐 

分 类 号：TG306[金属学及工艺—金属压力加工] TG319