TIG welding

TIG welding

In TIG welding, the arc burns between the non-melting tungsten electrode and the workpiece

In TIG welding, the material to be welded is heated by the heat of an electric arc, which is between a non-melting tungsten electrode and the workpiece. Both the tungsten electrode and the weld pool are protected from the negative influence of the surrounding air by an inert gas. The nature of the material to be welded determines whether welding is done with direct current (negative pole at the electrode) or alternating current. Because the amount of filler material is independent of the welding current, the weld pool is very controllable and the process can be applied in all positions. Protective gases play an important role in protecting the welding process as well as directed heat transfer, so for example Argon and Argon mixtures are used here.