But, there are some essential distinctions in between these 2 electrical arc welding processes:
How Each Process Functions
MIG, or metal inert gas, welding is a process that involves continually feeding a metal wire into the weld being made. The wire functions as a filler product to help join the two metal items.
TIG, or tungsten inert gas, welding uses a non-consumable tungsten electrode to run a current through the metals being joined and may or may not utilise a filler metal.