[JSeery]

Not sure I understand how a MIG would work without welding wire? There is no heat involved with the MIG handle, just wire and shielding gas. The heat is produced by the current flow from the welding wire to the surface being welded. It is the same principle as a stick arc welder, the wire replaces the stick. So the question (to me) sounds like can you use an arc welding to produce heat without a stick in it? Or can you use an arc welder to shrink metal if I don't use the stick? Just don't understand the question.