Metal Inert Gas 

MIG Metal Inert Gas is a welding process in which the arc between the electrode and the component are protected by inert gas. The electrode and the gas are fed together through a welding gun. MIG is one form of gas metal arc welding (GMAW). Metal active gas (MAG) is another.

MIG is suitable for automated welding. The key parameters are the correct gas mixture, the gas flow rate, the welding wire speed and the current. The MIG process can produce four main types of metal transfer, each with their own advantages and disadvantages. MIG welding is more widely used than any other type of arc welding, largely due to its speed and versatility.

For more information on MIG/GMAW see:


For safety information on MIG see:


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