Tig Welding Robots
Fanuc ArcMate 100i
Fanuc ArcMate 100i
Reach: 1373 mm
Payload: 6 kg
Motoman EA1400
Motoman EA1400
Reach: 1388 mm
Payload: 3 kg
Fanuc M-16iB
Fanuc M-16iB
Reach: 1667 mm
Payload: 20 kg
Motoman SK16
Motoman SK16
Reach: 1555 mm
Payload: 16 kg

Arc Welding Process: Gas Tungsten

Gas Tungsten Arc Welding (GTAW) is frequently referred to as TIG welding. TIG welding is a commonly used high quality welding process. TIG welding has become a popular choice of welding processes when high quality, precision welding is required. In TIG welding an arc is formed between a non-consumable tungsten electrode and the metal being welded. Gas is fed through the torch to shield the electrode and molten weld pool. If filler wire is used, it is added to the weld pool separately.

TIG Welding Benefits

Superior quality welds. Welds can be made with or without filler metal. Precise control of welding variables (heat). Free of spatter. Low distortion

Shielding Gases

Uses the following shielding gases: Argon. Argon + Hydrogen. Argon/Helium. Helium is generally added to increase heat input (increasing welding speed or weld penetration). Hydrogen will result in cleaner looking welds and also increase heat input, however, Hydrogen may promote porosity or hydrogen cracking.

GTAW Welding Limitations

Requires greater welder dexterity than MIG or stick welding. Lower deposition rates. More costly for welding thick sections.

Common GTAW Welding Concerns

Weld discontinuities. Undercutting. Tungsten inclusions. Porosity. Weld metal cracks. Heat affected zone cracks.

TIG Welding Problems

Erratic arc. Excessive electrode consumption. Oxidized weld deposit. Arc wandering. Porosity. Difficult arc starting.

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