藕合电弧AA-TIG高速焊工艺  

Research on coupling arc AA-TIG high-speed welding process

作　　者：杨磊[1] 樊丁[1] 黄勇[1] 晏丽琴[1] 吴飞虎[1] 张忠梅[1] 瞿怀宇[1] 

机构地区：[1]兰州理工大学材料科学与工程学院,甘肃兰州730050

出　　处：《电焊机》2011年第5期57-61,共5页Electric Welding Machine

摘　　要：传统TIG焊焊接熔深浅、效率低,焊接速度提高时会出现咬边和驼峰等焊接缺陷。传统活性焊(A-TIG)相对于传统TIG焊可以显著增加熔深,但由于电弧压力作用,在高于一定焊接速度时仍会出现咬边和驼峰等焊缝缺陷。以SUS304不锈钢为母材,提出新型的耦合电弧AA-TIG(arc assited activatingTIG welding)焊接方法用于高速焊。该方法通过引入活性氧元素和耦合电弧,实现了在较高焊接速度下有良好的表面成形和焊缝熔深。与传统TIG焊和活性焊相比,在焊接速度达到800 mm/min时,耦合电弧AA-TIG焊焊缝表面没有驼峰和明显咬边,同时焊缝熔深也进一步增加。Traditional TIG welding has its limited depth and low efficiency.It will appear bite edge hump welding defects with the welding speed increased. Traditional activating welding（A-TIG）compared with traditional TIG welding can significantly increase fusion deep,but because role of arc pressure,still can appear bit edge and hump etc of weld defect in above a certain welding speed.This experiment with stainless steel SUS304 for mother materials, present new coupling arc AA-TIG welding methods used in high-speed welding.By introducing ros elements and coupling arc ,this method realized good surface forming and welding fusion deep in high welding speed.Compared with the traditional TIG and activating welding,when welding speed reached 800 mm/min,AA-TIG welding coupling arc welding bead surface without hump and obvious bite edge and welding depth further increases.

关 键 词：不锈钢 高速焊 耦合电弧 AA-TIG焊 

分 类 号：TG444.74[金属学及工艺—焊接]