An arc is created between a refractory tungsten electrode and the workpiece, under the protection of an inert gas; if filler metal is required, it is added at the front of the molten bath.
TIG welding produces exceptionally clean welds of very high metallurgical quality. There are many applications, particularly in fields where quality takes precedence over productivity: aeronautics, chemical engineering, food processing, stainless steel piping and all kinds of precise, delicate work.
The EWM TIG MACHINE range is one of the most comprehensive on the market, from the most user-friendly to the most programmable, from site stations to power ratings in excess of 500 amps.