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TIG (tungsten inert gas) welding creates clean, precise welds on a wide range of materials. Also known as gas tungsten arc welding (GTAW), TIG welding is ideal for welding thin materials and surfaces that will be visible. An electrode rod is placed in a TIG torch, and the torch is connected to a TIG welder that supplies current to the electrode. An arc is created between the electrode and the workpiece, and the heat from the arc melts the workpiece material to create the weld. A filler metal rod can be added to the weld pool to provide more material for the weld, if needed. The TIG torch also provides external shielding gas to keep contaminants out of the molten weld pool. TIG consumables include nozzles and other replaceable parts that attach to a TIG torch.
