How To Weld Thin Sheet Metal With A Mig

Here s a shot of 0 3 mm stainless cut from a 5l thinners can that was welded in this way.

How to weld thin sheet metal with a mig.

When welding thin metal the main objective is to avoid warping burn through and excessive heat affected zones while still ensuring the weld has enough mechanical strength for the application. Tips for welding sheet metal with mig or tig. The stitch welding technique can be very powerful. However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire.

As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal. Short circuit transfer mig short arc tig and pulsed tig welding processes provide the most control over the heat to address these challenges. Use thin wire one big mistake we see with beginners is using welding wire that is too thick for the metal they re welding. Learn how to mig weld automotive sheet metal in about 5 minutes or less.

Keep the stick out short stickout of your mig wire is important when welding any type of metal but especially sheet. Learn why mig pulsed mig tig and pulsed tig are the ideal choices when welding sheet metal. 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.

For mig welding sheet metal it is often recommended to use an electrode wire of the smallest diameter to prevent burn through and warping. It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.