Before talking about the TIG welding advantages, let us understand Tungsten Arc Welding (TIG). In TIG welding an arc is created between a non-consumable tungsten electrode and the metal being welded. The arc produces the required heat to melt the work and the shielding gas (pure argon), fed through the torch, keeps oxygen in the air away from the molten weld pool and the hot tungsten.http://www.youliweldingmachine.com/
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