MIG Welders

MIG Welding Process:

Metal Insert Gas (MIG) welding, also referred to as metal active gas (MAG) is an automatic or semi-automatic process in which a wire connected to a source of direct current acts as an electrode to join two pieces of metal as it is continuously passed through a welding gun. A flow of an inert (argon) gas or active gas (CO2?) (depending on the type of steel), is also passed through the welding gun at the same time as the wire.

This gas acts as a shield, keeping airborne contaminants away from the weld zone. The primary advantage of MIG welding is that it allows the metal to be welded much more quickly than traditional “stick welding” techniques. This makes it ideal for fabrication work.


– MIG = Metal Inert Gas welding – Argon ( or MAG = Metal Active Gas welding) CO2
– Easiest welding process to learn
– Ideal for workshop or factory environments
– Best suited for fabrication work
– Welds up to 4 times faster than MMA welding
– Not suitable for windy, outdoor conditions

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