Principle of TIG welding - Welding Unit and Welding Process

Principle of TIG welding – Welding Unit and Welding Process

Clamped in the welding torch is a tungsten electrode in which the welding current is introduced. Between the tungsten electrode and the workpiece an arc is formed which fuses the base material and melts the added filler metal. Inert shielding gas streams out of the welding torch and screens off the glowing tungsten electrode as [...]