Mig welding is popularly known as feed welding. Metal insert gas or Gas Metal Arc Welding (GMAW) or Metal Active Gas (MAG) is one of the fastest welding techniques. The process of welding is semi-automatic or automatic arc in which a continuous and consumable wire electrode and a shielding gas are fed through a welding gun. It is mostly utilized in high production welding operations. This welding can be carried on metals such as carbon steel, stainless steel, aluminum, and copper can be welded with this process in all positions by choosing the appropriate shielding gas, electrode, and welding conditions. Due to its versatility and speed it is commonly used in automobile industry. A flow of an inert gas usually Argon gas used is passed through the welding gun at the same time as the wire electrode. The Inert gas acts as a shield, keeping air borne contaminants away from the weld zone.

Following are the advantages of MIG

• It is highly productivity, because welders don’t have to stop to change rods or chip and brush the weld frequently.
• The process is easy and makes great-looking welds.
• Almost there is no cleanup required.
• This process of weld can be carried on stainless, mild steel, and aluminum.
• It can be weld in all positions.

The welder has to follow safety tips while welding and protect himself by wearing a welding mask, wear flame proof coats and gloves and fully covered leather shoes.