Tungsten Inert Gas (TIG) welding TIG pipe welding #tig #tigwelding #migwelding
Gas #tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an #arc #welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from #oxidation or other #atmospheric contamination by an inert shielding gas (argon or helium). A filler metal is normally used, though some welds, known as autogenous welds, or fusion welds do not require it. When #helium is used, this is known as heliarc welding. A constant-current welding power supply produces #electrical energy, which is conducted across the arc through a column of highly ionized #gas and metal vapors known as a #plasma. #GTAW is most commonly used to weld thin sections of stainless #steel and non-ferrous metals such as #aluminum, magnesium, and copper alloys. The #process grants the operator greater control over the weld than competing processes such as shielded metal arc welding and gas metal arc welding, allowing for stronger, higher quality welds.
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