How To Weld Gaps In Sheet Metal

Working in short bursts will form a bridge between both pieces of metal.

How to weld gaps in sheet metal.

Tack welding is the best way to hold the metal in place before you fully weld it to the original metal. Tack welds are simply small welds that barely penetrate the metal and aren t pushed or pulled to form a bead. When mig welding a patch panel on your car body panels you should think of leaving small gaps between the patch panel and the original metal. If you have a gap because you drilled a piece incorrectly and need to fill in one of the holes you can do that.

Take the time for proper fit up proper tight part fit up is especially important when welding thin materials. I keep blowing through my thin sheet. It doesn t matter as much it it s a bit smaller because if there s a very small gap this can be filled with filler metal. Use short bursts when you weld.

Because it will have you a lot more control over the whole process and it is more forgiving in case you do anything wrong. Make the replacement metal is not larger than the original metal or it will not fit. How to mig weld large gaps the right way corners. A 100 argon shielding gas is the most common in mig welding aluminum sheet metal.

My names matt urch and i own and run urchfab welding and fabrication. Andy gives helpful insights and tips to mig weld thin sheet metal. Tack weld in place. Here s a little trick i use when i come up against a gap that s a tad to big.

For even thinner materials try a 035 inch filler metal. The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten.