Diploma in Gas Tungsten Arc Welding Admission 2024-25, Eligibility, Mock Tests, Merit List

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Gas tungsten arc welding (GTAW), additionally acknowledged as tungsten inert fuel (TIG) welding, is an arc welding technique that makes use of a non-consumable tungsten electrode to produce the weld. The weld region and electrode are included from oxidation or different atmospheric illness through an inert protecting fuel (argon or helium). Filler steel is usually used, even though some welds, recognized as autogenous welds, or fusion welds do now not require it. When helium is used, this is regarded as heliarc welding. A constant-current welding strength provide produces electrical energy, which is performed throughout the arc via a column of tremendously ionized fuel and metallic vapors recognized as a plasma. GTAW is most oftentimes used to weld skinny sections of stainless metal and non-ferrous metals such as aluminum, magnesium, and copper alloys. The system delivers the operator increased manipulation over the weld than competing approaches such as shielded steel arc welding and fuel metallic arc welding, permitting for stronger, greater first-rate welds. However, GTAW is comparatively extra complicated and challenging to master, and furthermore, it is substantially slower than most different welding techniques. An associated process, plasma arc welding, makes use of a bare one-of-a-kind welding torch to create a extra centered welding arc and as an end result is regularly automated.