砂型重力铸造铝合金轮毂温度场数值模拟  

Numerical Simulation of Temperature Fields in Sand Mold Gravity Casting Electro-mobile Aluminum Alloy Wheels

作　　者：贾瑞娇[1] 严继康[1] 邱哲生[2] 吴鹏飞 甘国友[1] 周永全[2] 杜景红[1] 易健宏[1] 

机构地区：[1]昆明理工大学材料科学与工程学院 [2]云南铝业股份有限公司

出　　处：《特种铸造及有色合金》2013年第2期127-131,共5页Special Casting & Nonferrous Alloys

基　　金：云南省自然科学基金资助项目(2008ZC014M);昆明理工大学科研基金资助项目(2010-08)

摘　　要：对电动车铝合金轮毂在砂型重力铸造凝固过程中的温度场进行数值模拟。建立砂型重力铸造铝合金轮毂凝固过程温度场的数学模型、几何模型及有限元仿真模型。充分考虑材料及边界条件等参数的非线性特征,使用等价比热法对结晶潜热进行处理。基于有限元模拟软件Procast,对砂型重力铸造铝合金轮毂凝固过程温度场进行数值模拟计算,通过模拟计算,获得温度场的分布规律。结果表明,三维温度场数值模拟计算结果能够反映铸坯在凝固过程中温度场的动态变化。The temperature field in the solidification process of sand mold casting electro-mobile aluminum alloy wheels was simulated. The mathematical model, geometrical model and FEM model of temperature field were established. The nonlinear features of materials and boundary conditions have been fully con- sidered and the latent heat was treated by using equivalent specific heat method. The temperature fields in solidification process of sand gravity casting aluminum alloy wheels were simulated by FEM simula- tion Procast, and temperature field distribution was presented. The results show that the numerical sim- ulation can describe well dynamic changes of three dimensional temperature field and provide a reference to improve aluminum alloy wheels quality, determination of solidification time and process optimitation.

关 键 词：PROCAST 砂型重力铸造 凝固过程 铝合金轮毂 温度场 

分 类 号：TG292[金属学及工艺—铸造] TP391[自动化与计算机技术—计算机应用技术]