What do the terms TIG and MIG stand for?
TIG [Tungsten Inert Gas] and MIG [Metal Inert Gas] refer to two electric welding processes in common use today. They are very different and each has characteristics making them suitable for particular welding applications. In brief; TIG welding uses a non-consumable electrode that provides the arc and a separate filler material in the form of a rod. In addition, the TIG torch delivers a shielding gas to the weld site to minimize weld oxidation and/or alter the characteristics of the weld metal. In technique it is much like handling an oxy-acetylene torch though it is an electric process rather than flammable gas. It produces high quality welds and is especially suitable for aluminum and stainless steel metals. MIG welding uses a device to automatically feed welding filler material into the weld site. The material is in the form of wire and the wire itself is the electrode. As it is with the TIG torch, the MIG torch delivers shielding gas to the weld site although welding wire is availa
