纵向磁控钨极惰性气体保护焊电弧运动轨迹行为研究  

Research on Longitudinal Magnetron Tungsten Inert Gas Welding Arc Trajectory Behavior

作　　者：程葳蕤 唐方 杨成明 李湘文[1] 沈亚仁 CHENG Weirui;TANG Fang;YANG Chengming;LI Xiangwen;SHEN Yaren(Mechanical Engineering School,Xiangtan University,Xiangtan 411105,China;Changsha Tianyi Smart Technology Co.,Ltd.,Changsha 412000,China;Hunan Xiangdian Boiler Pressure Vessel Inspection Centre Co.,Ltd.,Changsha 410007,China;Hunan Construction Senior Technical school,Changsha 410015,China)

机构地区：[1]湘潭大学机械工程学院,湖南湘潭411105 [2]长沙天一智能科技股份有限公司,湖南长沙412000 [3]湖南省湘电锅炉压力容器检验中心有限公司,湖南长沙410007 [4]湖南建筑高级技工学校,湖南长沙410015

出　　处：《湖南电力》2022年第5期42-47,共6页Hunan Electric Power

基　　金：湖南省自然科学基金面上项目(2020JJ4089)。

摘　　要：钨极惰性气体保护焊(TIG)技术是近年来广泛应用的焊接方法,其电弧稳定、焊接质量好、飞溅小,应用领域广泛。通过改变磁场频率、磁感应强度和焊接电流,研究TIG电弧行为。结果表明,无外加磁场的TIG电弧呈圆锥形,施加纵向磁场时,TIG电弧的上部收缩、底部轴向膨胀,呈钟罩形;施加交流纵向磁场时,TIG电弧轮廓明显变小,电弧尾端有明显的汇聚。Tungsten inert gas arc welding(TIG)technology is widely used in recent years,due to its arc stability,good welding quality,small spatter,widely used fields.TIG welding arc behavior is studied by varying magnetic field frequency,magnetic induction and welding current in the paper.The results show that the TIG arc without external magnetic field is conical,the upper part of TIG arc shrinks and the bottom part of TIG arc expands axially when applied longitudinal magnetic field.The arc profile becomes smaller obviously when applied AC longitudinal magnetic field,and there is obvious convergence at the end of arc.

关 键 词：TIG 纵向磁场 磁场频率 磁场强度 焊接电流 电弧形态 

分 类 号：TG444.74[金属学及工艺—焊接]