Gas metal arc welding or GMAW is also known by its subtypes, metal inert gas or MIG or metal active gas or MAG welding. The process is either a semi automatic or automatic arc welding process in which continuous and consumable wire electrode and a shielding gas are fed through a welding gun. A constant voltage direct current power source is most commonly used with GMAW but constant electric current systems, as well as alternating current, can be used. The shielding gas chosen depends on the type of material to be welded and the process variation being used. Argon is commonly mixed with other gases such as oxygen, helium, hydrogen and nitrogen. Fairly simple welding technique or process to learn. Can be dangerous if proper prcautions are not taken. toxic fumes, heavy leather gloves, helmet, dark face plates as protection against bright ultra violet light which can cause arc eye, long sleeve jackets to avoid exposure against heat and flames, Popular welding method. Arc spot welding, indoors, inside, interior,
