Pulse arc welding uses a pulse arc welder and a non-consumable tungsten electrode to produce the weld. The weld area is protected from contamination by use of a cover gas (generally an inert gas such as argon or helium).  A filler metal is normally used, though some welds ("autogenous welds" - where two pieces of the same metal are joined via fusion) don't require it.

脉冲电弧焊接是一种非接触式工艺，不需要施加压力使部件焊合；它通过在部件和钨电极之间产生电弧，利用由此产生的热量以最小的热影响区加工出高质量的连接焊缝。

与电阻焊或超声波焊接不同，脉冲电弧焊接能够接合异质金属。