How To Mig Weld Auto Sheet Metal

When you are new to the whole process of welding auto body sheet.

How to mig weld auto sheet metal.

As a rule when mig welding sheet metal never use a body filler metal that is thicker than the base metal. While replacing body panels overheating and warping thin sheet metal is common. Place the welding tip wire at the gap and tack weld several small spots spacing them evenly apart. Then tack between the two previous tacks.

Sheet metal warps easily and also can burn through easily. Why are we telling you to start with the lower power setting available when you. 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. However if you are dealing with materials that are 18 gauge or thicker one should be able to use 030 inch welding wire.

Avoid warping the 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. Essential tips on how to weld auto body sheet metal take it slow when welding auto body sheet metal. Short quick welds when welding sheet metal with a mig welder you do not want to try and run one long bead like when you re welding heavier metal.

Start with the lowest power setting. When welding a long bead on sheet metal you ll put excessive heat into the panel and run the risk of the puddle falling through the panel.