摘要
为了使TIG焊熔池液态金属分布更加均匀,在普通TIG填丝焊的基础上,研究焊枪摆动对熔池行为的影响.建立了焊枪摆动的TIG填丝焊的数学模型,并利用示踪粒子的方法,对比普通TIG填丝焊和摆动TIG填丝焊的熔池温度场、流场及熔滴质量分布.结果表明,普通TIG填丝焊与摆动TIG填丝焊熔池轮廓基本一样,但摆动TIG焊通过摆动电弧,导致熔池内流场行为发生了改变,进而影响了温度场的分布,使熔池内温度分布更加均匀;示踪粒子分布表明,在TIG填丝焊中,摆动TIG填丝焊能够使熔滴金属更加均匀的分布在熔池中.
In order to make the liquid metal distribution of TIG welding pool more uniform,the influence of welding torch swing on the behavior of weld pool is studied based on ordinary TIG wire-filled welding.The mathematical model of TIG wire-filled welding for welding torch swing is established,and the tracer particles are utilized.The method compares the temperature field,flow field and droplet mass distribution of ordinary TIG wire-filled and swing TIG wirefilled .The analysis shows that the ordinary TIG wire-filled weld pool profile is basically the same as the swing TIG wirefilled weld pool,but the swing TIG welding changes the flow field behavior in the weld pool by swing arc,which affects the distribution of temperature field and makes the temperature distribution in the weld pool more uniform.The tracer particles distribution shows that in TIG wire-filled welding,the swing TIG wire-filled welding can make the droplet metal more evenly distributed in the weld pool.
作者
黄健康
陈会子
杨茂鸿
张裕明
杨福前
HUANG Jiankang;CHEN Huizi;YANG Maohong;ZHANG Yuming;YANG Fuqian(State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal,Lanzhou University of Technology,Lanzhou 730050,China;Beihang University,Beijing 100191,China;College of Engineering,University of Kentucky,Lexington,KY 40506,USA)
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2019年第6期7-13,I0001,共8页
Transactions of The China Welding Institution
基金
国家自然科学基金资助项目(51665034)
关键词
摆动
TIG
焊
数值分析
温度场
流场
示踪粒子
swing TIG welding
numerical analysis
temperature field
flow field
tracer particles
