1. Metal Inert Gas Welding

2. Metal Inert Gas (MIG) or Gas Metal Arc Welding (GMAW) is the most popular of the arc welding processes. –It is mainly because it is easy to use and versatile. –With an Inert Gas, such as Argon: MIG welding can be used to weld aluminum.

3. Welding Circuit Welder Wire Spool Welding Gun Shielding Gas Wire Feeder Work Cable Work Piece

4. Welding Power Source Work Clamp Welding Gun Wire Spool Shielding Gas Wire Feeder Regulator

5. How It Works An arc is struck between a continuously fed filler wire and the work. The arc is protected from oxidation by a shielding gas over the weld pool.

6. Advantages Welds most metals Little or no slag Easiest to learn Greater speed and efficiency Fewer Weld Defects Welds in most positions

7. Disadvantages Welding outside can be difficult Not ideal for thick material or deep penetrating welds