基于非熔化极惰性气体保护电弧焊的铝合金车身维修研究  

Research on Aluminum Alloy Body Maintenance Based on TIG Welding

作　　者：张影 ZHANG Ying(Huai'an Bioengineering Vocational College,Huai'an Jiangsu 223000)

机构地区：[1]淮安生物工程高等职业学校,江苏淮安223000

出　　处：《河南科技》2021年第32期41-43,共3页Henan Science and Technology

摘　　要：基于提高铝合金车身维修水平的目的,从焊接工艺视角出发,提出将非熔化极惰性气体保护电弧(Tungsten Inert Gas,TIG)焊应用于铝合金车身维修,着重分析非熔化极惰性气体保护电弧焊工艺中焊接速度和焊接峰值电流对焊缝形貌的影响。结果表明:车身焊缝熔深受焊接速度的影响较小,熔宽和清理宽度受此影响较大;熔深受峰值电流变化的影响较小,熔宽和清理宽度受此影响较大。建议车身维修期间,设定TIG焊接速度为10~12 mm/s,峰值电流为180~200 A。另外,针对TIG焊接在铝合金车身维修中的应用给出了一些指导性建议。In order to improve the maintenance level of aluminum alloy body,from the perspective of welding process,this paper proposes to apply non consumable inert gas arc welding to aluminum alloy body mainte⁃nance,and focuses on the effects of welding speed and welding peak current on weld morphology in non con⁃sumable inert gas arc welding process.The results show that the welding speed has little effect on the weld fu⁃sion width of vehicle body,and the fusion width and cleaning width are greatly affected by this;The melting width and cleaning width are greatly affected by the change of peak current.It is recommended to set the TIG welding speed as 10~12 mm/s and the peak current as 180~200 A during body maintenance.this paper gives some guiding suggestions for the application of TIG welding in aluminum alloy body maintenance.

关 键 词：非熔化极惰性气体保护电弧焊 车身维修 铝合金 

分 类 号：TG445[金属学及工艺—焊接]