Originally Posted by
ImportLuv
norachel, TIG has one main advantage over MIG which is control. Wiki the difference between the two.
For this application, yeah "stitch" welding is ideal because it's sheet metal. You just want to "float" the fillers on top and into the work piece, and not penetrate completely through the metal.
Over working or welding the metal will warp the material.
Many kinds of cars and trucks stitch weld, not a 240 thing at all.
If you use a 110 MIG you wont need to worry about over penetrating. You also are susposed to only go about 5'' at a time to avoid overworking the metal. Also when your welding you going to burn the liner in the fender wells so to avoid a fire go a little at a time.