AZ31激光-MIG复合热源焊接参数对焊缝形貌的影响  

Influences of welding parameters on weld appearance in laser-MIG hybrid welding of AZ31

作　　者：冯杰才[1] 陈东高[1] 谭兵[1] 王冬生[1] 齐果[1] 高明[2] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]华中科技大学,湖北武汉430074

出　　处：《兵器材料科学与工程》2009年第2期100-103,共4页Ordnance Material Science and Engineering

摘　　要：通过焊接工艺试验,研究10、27mm厚AZ31镁合金在CO2激光-MIG电弧复合热源焊接过程中焊接参数对焊缝形貌的影响。结果表明,在复合热源焊接中,焊缝熔深随焊接电流和激光功率的增大而增大,随焊接速度的增大而减小。当焊接电流为120~150A,激光焊接功率为2500~3500W,焊接速度为500~1000mm/min,热源间距为1~2mm,离焦量为0~1mm时得到较好的焊缝形貌。The influences of welding parameters on weld appearance in CO2 laser-MIG hybrid welding of AZ31 magnesium alloy of 10 and 27 mm in thickness were studied by experiments. The results show that the weld depth will enlarge with the increasing of arc current and laser power. On the contrary, the weld depth will decline when the welding speed increases. Excellent weld appearance will be obtained when the arc current,the laser power,the welding speed,the laser-arc distance and the defocusing distance was 120-150 ...

关 键 词：AZ31镁合金 激光-MIG复合热源 焊接参数 焊缝形貌 

分 类 号：TG456.7[金属学及工艺—焊接]