金属加工（热加工）Issue(11)：13-19,7.
不同焊接速度对AH36钢激光-电弧复合焊熔滴与熔池动态行为影响研究
Influence of different welding speeds on droplet and molten pool in laser-arc hybrid welding AH36 steel
摘要
Abstract
The effects of laser-MIG hybrid welding on 4mm-thick AH36 steel at different welding speeds is investigated through numerical simulation and high-speed photography.The research revealed that:At 20mm/s,the process was dominated by unstable short-circuit transfer;At 30mm/s,a mixed transfer mode of jet and globular transitions emerged with improved stability;At 40mm/s,stable jet transfer became predominant.Under low welding speed(20 mm/s),the fluid temperature fluctuated between 1425K and 1800K with significant temperature gradient variations,accompanied by molten pool fluctuations and vortex flow velocities of 3.75～5.0m/min.Conversely,at high welding speed(40mm/s),the fluid temperature stabilized at 1750K with reduced vortex flow velocities of 1.25～2.5m/min,and the molten pool exhibited enhanced stability under surface tension effects.关键词
激光-电弧复合焊/焊接速度/涡流速度Key words
laser-arc hybrid welding/welding speed/vortex velocity引用本文复制引用
夏淦,苟星禄,冯俊博,宋凌霄,李霁轩,陈展鹏,方超,张培磊..不同焊接速度对AH36钢激光-电弧复合焊熔滴与熔池动态行为影响研究[J].金属加工（热加工）,2025,(11):13-19,7.基金项目
国家自然科学基金(52305435,52075317) （52305435,52075317）
上海市汽车基金项目(1604) （1604）
上海工程技术大学大学生创新项目(cx2405008). （cx2405008）
