建筑装饰用AA5754铝合金在激光电弧复合焊接过程中焊缝形貌及性能变化

Weld morphology and properties changes of AA5754 aluminum alloy for architectural decoration in laser hybrid welding process

激光复合焊接是将激光热源和附属焊接源进行组合焊接的技术。利用新一代高功率光纤激光器和TIG焊枪,采用激光电弧复合焊接技术完成了两套实验。研究激光功率、焊接速度和电弧电流对建筑装饰用AA5754铝合金焊接质量的影响,并对以电弧为主导作用的复合热源和以激光为主导作用的复合热源进行比较分析。结果表明:以激光为主导作用的复合焊有更好的熔深和焊接质量,并在实际工作中得到了进一步验证。

Laser hybrid welding is a new welding technique using compounded heat sources of arc and laser.In this paper,using a new generation of high power fiber laser and TIG welding torch,two sets of experiments have been completed by laser-arc hybrid welding.Study the laser power,welding speed and arc current on the quality of welding,and a comparison has been performed between laser leading and arc leading configuration.The results show that the compound welding with laser as the leading role has better penetration welding and welding quality,and is further proved in the practical work.