MIG (metal inert gas) welding uses a feed wire that constantly moves through the gun to create the spark, then melts to form the weldTIG (tungsten inert gas) welding uses long rods to fuse two metals directly together.

Arc welding processes are as varied as the workpieces they create, and choosing the right one is vital to your project’s success. While MIG and TIG welding both form the weld using an electric arc, the techniques are quite different, and choosing the wrong one can lead to more than one headache. Read on for the reasons you may want to choose MIG welding vs. TIG welding. MIG and TIG welding both use an electric arc to create the weld. The difference between the two is the way the arc is used. MIG (metal inert gas) welding uses a feed wire that constantly moves through the gun to create the spark, then melts to form the weld. TIG (tungsten inert gas) welding uses long rods to fuse two metals directly together.

A number of reasons make MIG welding the superior choice for your job. First, it’s more diverse. While TIG welding can be used on more types of metals, it’s limited in its effectiveness on thicker jobs. MIG welding can be used on aluminum, stainless steel and steel, and on every thickness from 26-gauge sheet metal to heavy-duty structural plates.