X80管线钢激光-电弧复合焊接工艺  

Laser-arc hybrid welding technology of X80 pipeline steel

作　　者：石庭深 朱加雷[2] 焦向东[2] 冯艳鹏 张永明[2] 

机构地区：[1]北京化工大学机电工程学院,北京100029 [2]北京石油化工学院机械工程学院,北京102617

出　　处：《电焊机》2015年第5期69-72,共4页Electric Welding Machine

基　　金：国家自然科学基金(51205026;51175046);科技北京百名领军人才培养工程(Z131104000513025);北京石油化工学院优秀青年教师和管理骨干培育计划项目(BIPT-BPOYTMB-2013);北京石油化工学院大学生研究训练[URT]计划项目(2014J00049)

摘　　要：激光-电弧复合焊接结合了激光焊和电弧焊两种焊接工艺,影响焊接过程稳定性和焊接接头质量的因素较多。针对X80管线钢,系统开展了光纤激光-MIG电弧复合焊工艺研究。在对比光纤激光焊、MIG焊和激光-MIG复合焊的基础上,分别考察焊接电流、激光功率、焊接速度、光丝间距、离焦量等参数对焊缝成形的影响,并优化了激光-MIG复合焊的焊接工艺参数。Laser-arc hybrid welding combines the laser welding process and arc welding process,and involves a large number of factors,which influence welding stability and weld joint quality. The process research on fiber laser-MIG hybrid wehting for X80 pipeline steel is systematically carried out. On the basis of comparison of fiber laser welding,MIG welding and laser-MIG hybrid welding,the effects of the welding current,laser power,welding speed,defocusing amount and distance between laser and arc on the weld formation are studied. Ttle laser-MIG hybrid welding process parameters are optimized.

关 键 词：X80管线钢 复合焊 熔深 激光功率 

分 类 号：TG456.7[金属学及工艺—焊接]