外加纵向磁场作用TIG焊温度场的数值模拟  

Numerical Simulation of Temperature Field in TIG Welding under External Longitudinal Magnetic Field

作　　者：代巍[1] 江淑园[1] 张学武[1] 

机构地区：[1]南昌航空大学,江西南昌330063

出　　处：《南昌航空大学学报（自然科学版）》2008年第4期23-27,共5页Journal of Nanchang Hangkong University(Natural Sciences)

基　　金：江西省自然科学基金资助项目(0150040)

摘　　要：外加纵向磁场可以改变电弧加热有效半径进而影响焊接温度场分布。为了得到外加纵向磁场作用TIG焊的电弧加热有效半径,采用拍摄TIG焊水冷铜阳极板时电弧外观形态照片并对比照片的方法,测得外加纵向磁场对电弧加热有效半径的影响系数。通过数值模拟分析外加磁场TIG焊温度场的分布,模拟结果与实际相符。Welding temperature distribution was effected by the effective heated radius of the arc regulated by different external longitudinal magnetic intensity. In order to obtain effective heated radius of the arc of TIG welding under external longitudinal magnetic field, influence coefficient of arc was measured by comparison with different arc shape of TIG welding created on the water-cooled copper anode plate. Temperature distribution of TIG welding with numerical simulation was consistent with experimental res...

关 键 词：外加纵向磁场 温度场 数值模拟 

分 类 号：TG407[金属学及工艺—焊接]