WSM series inverter DC pulse tungsten electrode argon arc welder adopts frequency conversion technology, take the imported large power IGBT as the switch components, and adopts the high frequency transformer and high frequency rectifier to realize the conversion from AC to DC. The application of new frequency conversion technology makes the welding characters improved obviously and realizes the low input power. The high energy-saving character shows that it is a revolutionary product in the field of electrical source technology. This welder can provide DC manual welding arc at the same time. Applicable field: Metal materials such as carbon steel, alloy steel, stainless steel, copper, titanium and its alloy etc. It can adapt the welding with high strength .