焊接参数对铝合金激光--MIG电弧复合焊缝熔深的影响  

Effect of welding parameter on weld penetration in laser-MIG hybrid welding of aluminum alloy

作　　者：王旭友[1] 王威[1] 林尚扬[1] 

机构地区：[1]机械科学研究院哈尔滨焊接研究所,哈尔滨150080

出　　处：《焊接学报》2008年第6期13-16,113-114,共6页Transactions of The China Welding Institution

基　　金：国家“十一五”科技支撑计划项目(2006BAF04B10);黑龙江省自然科学基金资助项目(ZJG0601)

摘　　要：以5A06(LF6)铝合金为研究对象,研究了铝合金激光—MIG电弧复合焊(HY-BRID焊)时焊接参数的变化对焊缝熔深的影响规律,并将焊接参数的变化对激光—MIG电弧复合焊、MIG电弧焊、激光焊的焊缝熔深的影响进行了综合比较分析。结果表明,若以等效于激光焊熔深的MIG电弧功率为分界线,可以把MIG电弧的功率分成高、低能量两个区,当激光与低能量电弧区的电弧复合时,激光对焊缝的熔深起主导作用,HYBRID焊的熔深大于该区的MIG电弧焊;当激光与高能量电弧区的电弧复合时,电弧对焊缝的熔深起主导作用,HYBRID焊缝主要体现为MIG焊缝的特点,加入激光的优势主要体现在增加焊接速度方面,即高速焊时也可获得良好的焊缝成形。The influences of welding parameter during laser-MIG hybrid welding of 5A06 aluminum alloy on weld penetration were investigated.And weld penetrations of welding techniques as laser-MIG hybrid welding,MIG welding and laser welding were compared and analyzed.The results show that if MIG arc power being equivalent to 2 000 W laser power penetration was taken as a dividing line,the MIG arc power can be divided into two parts.One is higher power MIG arc zone,the other is lower power MIG arc zone.Combining 2 000...

关 键 词：复合热源焊接 铝合金焊接 激光焊接 电弧焊接 

分 类 号：TG457.14[金属学及工艺—焊接]