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What does TIG stand for?

Thermal Inert Gas

TIG stands for Thermal Inert Gas. This method of welding uses an inert gas, most commonly Argon, to protect the weld pool from atmospheric contamination. This creates a cleaner, higher quality weld. The other options are incorrect because thermal ion gas is not a commonly used term in welding and Tungsten Inner Gas is not a method of welding. While Tungsten Inert Gas is a similar term, it is often used interchangeably with Gas Tungsten Arc Welding (GTAW). Therefore, TIG is the most accurate and commonly used term for this welding process.

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Thermal Ion Gas

Tungsten Inner Gas

Tungsten Inert Gas

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