IG stands for Metal Inert Gas welding, also called Wire-feed OR GMAW (Gas Metal Arc Welding). During the welding process, wire is continuously fed from a spool, and MIG welding is sometimes referred to as a semi-automatic welding process. MIG wire is a solid, non-coated wire and receives shielding from a mixture of gases, including argon, oxygen, and helium.

MIG is capable of joining most types of metals and it can be performed in most positions, even though flat horizontal is most optimum.

Different gases are used to form the arc, depending on the materials to be welded together. Argon is normally used to weld mild steel, aluminum, titanium and alloy metals. Helium is used to weld mild steel and titanium in high speed process and also copper and stainless steel. Carbon dioxide is most often used to weld carbon and low alloy steels. Magnesium and cast iron are other metals commonly welded used in the MIG process.

Welding and Associates has extensive experience in a variety of applications using MIG welding with aluminum, stainless steel, mild steel, and cast metals.