单旁路耦合电弧GMAW高速焊接工艺

High-Speed Welding Technology Analysis of Double Electrode GMAW

介绍了单旁路耦合电弧熔化极气体保护电弧焊(DE-GMAW)方法的原理和系统组成,由于旁路电弧的分流作用使得电弧压力和母材热输入显著降低,从而有利于高速焊接过程.通过实验对比了单旁路耦合电弧和传统GMAW方法在高速焊接时的效果.结果表明:两者在焊接总电流相同的条件下,单旁路耦合电弧GMAW方法能获得更高的焊接速度和良好的焊缝成形.

The principle of double electrode gas metal arc welding(DE-GMAW) and all parts of its welding system were introduced.The arc pressure and heat of base metal were both reduced because the bypass arc separated a part of weld current which through the wire.It is good for the high-speed welding process.The high-speed welding result of DE-GMAW was contrasted with that of traditional GMAW.The result showed that DE-GMAW could have a higher welding speed and a better weld formation than the traditional GMAW under a same weld current.