光纤激光+MIG电弧复合热源焊接参数对6009铝合金焊缝表面成形的影响  

Influence of Fiber Laser+ MIG Arc Hybrid Welding Parameters on Welding Morphology of 6009 Al Alloy

作　　者：张德芬[1] 王同举 杨阳[1] 李曾珍[1] 谭盖 孙宇良 

机构地区：[1]西南石油大学材料科学与工程学院,四川成都610500 [2]重庆长安汽车股份有限公司动力研究院,重庆401120

出　　处：《热加工工艺》2015年第9期213-215,共3页Hot Working Technology

基　　金：四川省高等学校油气田材料重点实验室项目(x151514kcl21)

摘　　要：利用余高-熔宽比表示焊缝表面铺展性并与焊缝熔宽比一起作为参数来评价热源焊缝表面的成形性,探讨了焊接参数包括焊接电流、激光功率和焊接速度对焊缝成型的影响。结果表明:随着激光功率的增大,焊缝余高-熔宽比降低,焊缝背宽比增大;随着焊接电流和焊接速度的增大,焊缝余高-熔宽比和焊缝背宽比增大。The reinforcement-to-width ratio, which was used to indicate the weld metal spreadability and weld width radio were used to elevate weld appearance in the fiber laser＋pulsed MIG arc hybrid welding. The effects of welding parameters（welding current,laser power,welding speed） on the welding morphology were researched. The results show that the hybrid welding reinforcement-to-width ratio increases and the weld width radio decreases with the increase of laser power.The hybrid welding reinforcement-to-width ratio and width radio increases with the increase of welding current and welding speed.

关 键 词：光纤激光+脉冲MIG复合焊 余高-熔宽比 焊缝背宽比 

分 类 号：TG457.14[金属学及工艺—焊接]