Spot Welding Sheet Metal With Mig

September 10 weldpros mig welding for sheet metal.

Spot welding sheet metal with mig.

Buy the kit here. The two most commonly used methods for welding sheet metal are mig and tig methods. Applicable 10 off coupon code. For mig welding sheet metal it is often recommended to use an electrode wire of the smallest diameter to prevent burn through and warping.

You can than take a drill or a metal punch to make holes in the top layer of the metal. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. This method is favorable as it leaves room. It is similar to plug welding although a hole is not drilled in the front sheet of metal.

Mig welding is the preferred method for most automotive bodywork and since sheet metal is the thinnest of metals a large expensive mig unit is usually not required. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. It s one of the highest quality machines available and comes incredibly low priced. 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. Don t forget to mark. The majority of the sheet metal welding i ve done was with a 90 amp 110 volt welder. 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.

Instead the power of the mig is relied upon to fully melt the top sheet and penetrate into the back sheet. Tig welding sheet metal. Mig welding is one of the most appropriate methods used for sheet metal. Below we show you the process for making a spot weld with your mig welder.

I like to try and center the weld in the flange or weld seam. The hobart handler 140 mig is the best affordable mig welder for sheet metal. While sheet metal is primarily a tig welding job there are times when it s handy to have an available mig welder to fuse sheet metal.