Gas Metal Arc Welding (Gmaw) Wires

Gas metal arc welding (GMAW), sometimes referred to by its subtypes metal insert gas (MIG) welding or metal active gas (MAG) welding, is a semiautomatic or automatic arc welding process in which a continuous and consumable wire electrode and a shielding gas fed through a welding gun. A constant voltage, direct current power source is most commonly used with GMAW, but constant current systems, as well as alternating current, can be used. There are four primary methods of metal transfer in GMAW, called globular, short-circuiting, spray, and pulsed spray, each of which has distinct properties and corresponding advantages and limitations.