Tig Welders

TIG Welding uses a tungsten electrode that is nonconsumable. In other words it does not burn up like an electrode in stick welding or the wire in metal inert gas (MIG) welding does. The tungsten acts as the torch: It generates heat, which melts the metal and/or filler metal. Thin metals can be joined by TIG welding without using filler metal. Joining thicker metals requires using an approximately 3 foot long filler rod of various diameters that is fed into the weld pool with one hand, while the torch is manipulated with the other.

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TIG welders are designed for the Gas Tungsten Arc Welding process , which is commonly referred to as the Tungsten Inert Gas process . The TIG process derives the heat for welding from an electric arc established between a non-consumable tungsten electrode and the part to be welded. Filler metal, if used, is manually feed into the weld puddle when TIG welding.

The TIG welding process requires an air- or water-cooled torch to hold the tungsten electrode and is connected to the TIG welder. The TIG welding process also requires an external shielding gas, typically argon, helium, or a mixture of the two to protect the molten metal and electrode from atmospheric contamination.

High quality welds can be produced with TIG welders. The TIG welding process also has all position welding capability and is excellent on very thin materials. Additionally, a TIG welder makes welds that have outstanding appearance and clean-up is fast and easy since there is no slag and essentially no spatter.