Plasma

The plasma welding process is very similar to the TIG welding process, but has a number of key advantages. The main reasons for using a plasma welding system are always the reliable, top-quality results and higher welding speeds. This applies to all chrome-nickel materials, coated and uncoated steels, titanium and all nickel-based materials. Application areas include the automotive supply industry, pipeline and container construction, mechanical engineering and structural steelwork, rail vehicle construction and shipbuilding.

The advantages at a glance

/ up to 20% higher welding speed

/ no weld-seam preparation, up to 30% less filler metal needed

/ completely spatter- and pore-free

/ deeper penetration, yet only minimal component distortion

The system – keeping the focus on the big picture

At Fronius, every welding process is looked upon as a system, right from the outset. This is the only way of ensuring that all the components (each of them of top quality, of course) are compatible and work in perfect harmony. The plasma welding system comprises four main components: a digital TIG power source with a cooling unit, the PlasmaModule 10 and a plasma torch. The exact system configuration can be tailored to individual requirements. 

Plasma welding is similar to TIG welding. The difference is that in plasma welding, the arc is sharply constricted by a cooled gas nozzle through which a flow of plasma gas is directed. The shielding gas flows through the outside gas nozzle, providing an optimum gas shield to the weld seam. The result is a concentrated arc with maximum energy focus.

1 Tungsten electrode

2 Shielding gas

3 Plasma gas

4 Plasma nozzle