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TIG welding's official name, GTAW, stands for what?

Gas tungsten arc welding.

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  1. Gas tungsten arc welding ✔
  2. Gas titanium arc welding
  3. Gas thermal arc welding

Why: The arc comes from a tungsten electrode that does not melt. An inert gas, usually argon, protects the puddle.

Huh, didn't know that: The welder feeds filler rod by hand into the molten puddle.

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References

Answer: Gas tungsten arc welding. The arc comes from a tungsten electrode that does not melt. An inert gas, usually argon, protects the puddle.

  1. TIG It: How a TIG Welder Works (Miller) www.millerwelds.com/en-us/resources/knowledge-hub/tig-welding/how-to/tig-it-how-a-tig-welder-works-and-when-to-tig-weld
    technically called gas tungsten arc welding (GTAW)
    Checked 2026-10-10.

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