How To Weld Thin Sheet Metal With A Mig

Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet.

How to weld thin sheet metal with a mig.

Learn how to mig weld automotive sheet metal in about 5 minutes or less. The stitch welding technique can be very powerful. It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work. Here s a shot of 0 3 mm stainless cut from a 5l thinners can that was welded in this way.

The main reason to use a smaller diameter wire is that it takes less heat for melting and hence the metal around the weld is not heated to a very great extent. Tips for welding sheet metal with mig or tig. If your welding wire is too thick it will take more heat to melt the wire than the substrate and can make it even more prone to blowing holes in the panel. I was hoping to manage a butt weld too but the metal was far too thin for mig and i just blew holes.

For thinner gauge sheet metal like 18 or 20 gauge we suggest 023 6mm wire in your mig welder. As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal. Learn why mig pulsed mig tig and pulsed tig are the ideal choices when welding sheet metal. Short circuit transfer mig short arc tig and pulsed tig welding processes provide the most control over the heat to address these challenges.

However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire. I keep it short and to the point in this welding instructional video and show how ve.