电弧辅助活性TIG焊接法  

Arc assisted activating TIG welding process

作　　者：樊丁[1,2] 林涛[2] 黄勇[1,2] 牛书锋[2] 

机构地区：[1]兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室,兰州730050 [2]兰州理工大学有色金属合金及加工教育部重点实验室,兰州730050

出　　处：《焊接学报》2008年第12期1-4,32,共5页Transactions of The China Welding Institution

基　　金：高等教育博士点专项基金资助项目(20040731001)

摘　　要：提出了电弧辅助活性TIG焊(arc assisted activating TIG welding,简称AA-TIG焊)的概念,并以SUS304不锈钢作为母材,研究了AA-TIG焊接法的主要工艺参数对焊缝熔深熔宽的影响。结果表明,在相同的焊接工艺参数下,与传统TIG焊相比,AA-TIG焊缝熔深能增加一倍以上,同时熔宽明显收缩。采用AA-TIG焊可不开坡口一次焊透8mm厚不锈钢板,焊接效率明显提高。辅助电弧工艺参数和正常TIG焊工艺参数都对AA-TIG焊焊缝熔深熔宽有一定影响。A new activating welding process, arc assisted activating TIG welding (AA-TIG welding), is put forward. The effects of welding parameters on weld penetration and width are studied using SUS304 stainless steel as base metal. The results indicate that the weld penetration of AA-TIG welding can increase above 2 times of that of the traditional TIG welding in the same welding conditions and the weld width reduce dramatically. Using AA-TIG welding process, the 8mm thickness stainless steel can be fully penetrated without making a groove. Welding efficiency is obviously improved. Welding specifications of the assisted arc and common TIG welding have influence on the weld penetration and width of AA-TIG welding.

关 键 词：不锈钢 AA-TIG焊 CO2 焊缝成形 

分 类 号：TG444[金属学及工艺—焊接]