MIG-MAG welding MIG MAG

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WELDING MIG/MAG is similar to MMA in that heat for welding is produced by forming an arc between a consumable metal electrode and the workpiece; the electrode melts to form the weld bead. The main difference is that the metal electrode is a small diameter wire fed through the contact tip from a wire feeding spool gun, while a shielding gas is fed through the welding torch. As the wire is continuously fed, the manual process is sometimes referred to as semi-automatic welding. MIG and MAG welding both use gas bottles to provide the shielding gas and compatible filler materials.