铝合金压铸件充型凝固过程及气体卷入的数值模拟  

Numerical Simulation of Filling Process and Air Entrapment Condition of Al Alloy Die-casting

作　　者：余敏强[1] 夏伟[1] 曹文炅[1] 周照耀[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：《热加工工艺》2010年第1期36-39,共4页Hot Working Technology

基　　金：粤港关键领域重点突破项目(2007Z010);高等学校博士学科点专项科研基金项目(20040561010)

摘　　要：以复杂铝合金压铸件为对像,建立了三维模型及有限差分模型。通过数值模拟的方法对该铸件的充型过程、凝固过程及铸件的气体卷入情况进行模拟。通过对模拟结果的分析,预测了缺陷可能产生的区域,预测结果与实际情况吻合,并提出了相应的改进意见。Taking complicated aluminum alloy diecastings as study object, the 3D and FDM model were built. The filling process, Solidification process and air entrapment condition of the aluminum casting were shown by numerical simulation. Based on the simulation, the positions of defects were predicted. The results of simulation are in good accordance with the product. The corresponding improving measures were put forward.

关 键 词：铝合金 数值模拟 压铸 气体卷入 

分 类 号：TG249.2[金属学及工艺—铸造]