Numerical Simulation of Radial Ultrasonic Assisted MIG Welding Arc  

作　　者：洪蕾 肖皓 叶佳 马国红 HONG Lei;XIAO Hao;YE Jia;MA Guohong(Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province,School of Mechanical Engineering,Nanchang University,Nanchang 330031,China;Applied Materials,Inc.,Santa Clara,CA 95054-3299,USA)

机构地区：[1]Key Laboratory of Lightweight and High Strength Structural Materials of Jiangxi Province,School of Mechanical Engineering,Nanchang University,Nanchang 330031,China [2]Applied Materials,Inc.,Santa Clara,CA 95054-3299,USA

出　　处：《Journal of Shanghai Jiaotong university(Science)》2024年第2期330-338,共9页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.51665037)。

摘　　要：The numerical simulation of arc was carried out for both conventional melt inert gas(MIG)welding and ultrasonic assisted melt inert gas(U-MIG)welding.Based on the model established by Fluent,the arc shape,temperature field,and potential distribution were simulated.The study found that the shape of the arc changed when ultrasonic was added radially;the high-temperature area of the arc stretched,and the temperature peak increased.But as the current increased,the increase in temperature decreased.In addition,under the same conditions,the potential of U-MIG decreased and the pressure on the workpiece increased.To verify the accuracy of the simulation results,welding experiments under identical conditions were carried out,and a high-speed camera was used to collect dynamic pictures of the arc.The simulation results were in a favorable agreement with the experimental results,which provided a certain reference value for ultrasonic assisted arc welding.

关 键 词：numerical simulation welding arc ultrasonic arc welding arc temperature 

分 类 号：TG444[金属学及工艺—焊接]