Answer: GMAW stands for :Gas metal arc welding
and it is sometimes referred to by its subtypes metal inert gas (MIG) welding or metal active gas (MAG) welding.
Well, metal Inert Gas (MIG) and Metal Active Gas (MAG) welding are gas metal arc welding (GMAW) processes that use heat created from a DC electric arc between a consumable metal electrode and a workpiece which melt together to create a weld pool that fuses to form a join. So yeah i think, they can be interchanged
Explanation:
Hope it helps :)
