7A52铝合金双丝MIG焊接温度场数值模拟  

Numerical simulation of temperature field of twin wire MIG welding for 7A52 aluminum alloy

作　　者：田红雨[1] 陈芙蓉[1] 解瑞军[1] 郝永飞[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051

出　　处：《兵器材料科学与工程》2010年第3期22-25,共4页Ordnance Material Science and Engineering

基　　金：国家自然科学基金资助项目(50765003)

摘　　要：采用ANSYS的"生死"单元技术,对7A52铝合金双丝MIG焊接的热过程进行数值模拟。实现多层焊中焊缝填充的动态过程,与真实试验过程完全吻合。结果表明,7A52铝合金双丝MIG焊接过程中,焊点处的峰值温度可达到837℃。Through the use of ＂Birth and Death＂ element technology of ANSYS,numerical simulation was made on the thermal process of twin wire MIG welding for 7A52 aluminum alloy.The dynamic process of filling weld was achieved in the process of multi-pass welding,and was fully in line with the actual testing process.The results show that in the process of twin wire MIG welding for 7A52 aluminum alloy,the peak temperature of the weld spot can reach 837 ℃.

关 键 词：双丝MIG焊 温度场 数值模拟 7A52铝合金 

分 类 号：TG402[金属学及工艺—焊接]