TIG welding-brazing joint of aluminum to stainless steel with hot wire  

作　　者：何欢 林三宝 陈哲 范成磊 杨春利 

机构地区：[1]State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, 150001

出　　处：《China Welding》2013年第3期25-30,共6页中国焊接（英文版）

基　　金：Acknowledgement The authors would like to appreciate the financial support from the National Natural Science Foundation of China （Grant No. 50874033 ）.

摘　　要：TIG welding-brazing process with high frequency induction hot wire technology was presented to create joints between 5A06 aluminum alloy and SUS32! stainless steel using ER1100 filler wire with different temperature. The joints were evaluated by mechanical test and microstructural analyses. The welding procedure using hot fiUer wire （400 ℃ ） significantly increases strength stability by 71% and average value of tensile strength by 30. 8 % of the joints, compared with cold wire. The research of microstructures in interfaces and welded seams reveals that using 400 ℃ hot filler wire can decrease the thickness of intermetallic compounds （ IMCs ） from 6 to 3.5 txm approximately, which is the main reason of mechanical property improvement.

关 键 词：aluminum alloy stainless steel WELDING-BRAZING hot wire high frequency induction INTERMETALLIC 

分 类 号：TG339[金属学及工艺—金属压力加工] TG444.74