How To Weld Auto Body Sheet Metal

Try going for a wire of 023 inches when welding sheet metal.

How to weld auto body sheet metal.

They also generally move around the part so that consecutive welds are not next to each. It works best because it is good for many types of metal and is suitable for quick repairs. It uses no flux or filler and is accomplished by applying a concentrated short circuit and strong physical pressure to a small spot on as many as three thicknesses of body metal to be joined. Mig is going to be your go to welding type for most auto body repairs.

How to weld auto body sheet metal with a tig welder. Forget the larger 1 8 inch tungsten electrode and use a smaller one. For sheet metal i use ine welding wire and it is just as good as their flux cored wire if you want you can grab one here. To weld sheet metal with solid wires use electrode positive ep or reverse polarity.

Here s a few tips on repairing rust holes in car body panels. Mcr s method of butt welding sheet metal is to do three or four quick tack welds followed by and air quench. Place the welding tip wire at the gap and tack weld several small spots spacing them evenly apart. While replacing body panels overheating and warping thin sheet metal is common.

This has been a mainstay of automotive construction since the 1930s. In this video im showing you the process i use to do small rust repairs where a complete panel. It can handle a wider range of thicknesses than tig or stick. Tack in a few places apart from each other and wait until the panel is cool to the touch.

Avoid warping the sheet metal. Short bursts or tacks will help you gain more control and adjust easily. The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten. Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten.

Resistance or spot welding. Then tack between the two previous tacks.