激光－电弧复合焊工艺及焊缝成形质量研究

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中图分类号：TG456.9 文献标志码：A

ResearchonLaser-ArcHybridWeldingProcessand Weld Formation Quality

WANG Yanlong'， DAI Xiaoming²（1.FirstMilitaryRepresetatieOfceofavyuangouGuangzou5015，Cina;CCHuagpu WecongSbuldingCoayLimited，Guangzhou ，China）

Abstract：Laser-arc hybrid welding，asanovel high-efficiency process，offers high productivityand effective control of welding distortion，making it highly suitable for thin-plate joining innaval products.This studyconducts laser-arc hybrid welding on EH36 steel plates， investigating the efects of heat source positioning sequence，current type，arc current，laser power，welding speed，and defocus distance on welding efficiency and weld formation. Microstructure and mechanical properties of the joints are analyzed， with recommended parameters proposed.

Key words： laser-arc hybrid welding; welding process; weld quality; thin-plate welding

1 引言

激光-电弧复合焊是一种将激光焊接和电弧焊接相结合的新型焊接工艺，充分利用激光的深熔能力和电弧的搭桥能力，可以有效增大焊接熔深，提高焊接效率及质量。（剩余4677字）