Plug Welding Sheet Metal With Mig

It is recommended that a welder should use 023 or 024 inch wire for light gauge sheet metal work.

Plug welding sheet metal with mig.

I like to try and center the weld in the flange or weld seam. The instructions says that one has to use a specific voltage setting when welding a specific metal tickness. You can than take a drill or a metal punch to make holes in the top layer of the metal. Which one is correct.

The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder. Below we show you the process for making a spot weld with your mig welder. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. Drill holes every 1 4 to 1 2 inch along the width of the top metal plate that you are welding with a drill fitted with a 7 5 mm drill bit.

One alternative to plug welding is mig spot welding. It is similar to plug welding although a hole is not drilled in the front sheet of metal. 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. Don t forget to mark.

Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Instead a metal inert gas mig welding torch is used to weld in a hole drilled into the top plate to melt the lower plate and fill the hole with filler metal to create a plug. Tig welding sheet metal. For mig welding sheet metal it is often recommended to use an electrode wire of the smallest diameter to prevent burn through and warping.

Start by marking out even spacing of where you want your spot or plug welds on the metal. This enables you to take control over the. Learn how to mig weld automotive sheet metal in about 5 minutes or less. Instead the power of the mig is relied upon to fully melt the top sheet and penetrate into the back sheet.

The other version asks that one punchs a 10 mm 3 8 hole on the top metal sheet. I keep it short and to the point in this welding instructional video and show how ve. As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal.