How To Weld And Patch Auto Sheet Metal

Tack welds are simply small welds that barely penetrate the metal and aren t pushed or pulled to form a bead.

How to weld and patch auto sheet metal.

Once complete the welds will be ground flush being careful not to thin the metal on either side of the weld. After slicing the patches out with a cutoff wheel next came the bending hammer and dolly session until the patches matched the holes and fit snug and flush into the flanged seat. That makes this a one handed process. After cutting and fitting the new panel you are now ready to weld the patch panel in place.

Second never stitch weld you ll warp the panels beyond repair. This will hold it in place and allow you to weld it properly. Learn how to mig weld automotive sheet metal in about 5 minutes or less. See all 13 photos with the bottom layer welded the next patch can be tack welded in.

Take some time to make your patch a perfect fit. To obtain the best results while mig welding sheet metal proper fitment and cleanliness of the metal are essential. The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten. Tack weld different areas of the joint about an inch apart.

Ideally there should be a 1 32 gap between the patch and the body panel. I keep it short and to the point in this welding instructional video and show how ve. So you can keep the other hand free for manipulating your materials and other tools. Tack welding is the best way to hold the metal in place before you fully weld it to the original metal.

I then used the templates to trace out the patch panels on some sheet metal. Every restoration that passes through mcr needs some sort of sheet metal work that involves welding in new pieces so we thought we would show you how we join body panels together. Mig or metal inert gas welding aka gas metal arc welding or gmaw also uses a gas shield and filler material however in this case the filler is a wire fed directly through the welder. Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten.

840 2570 l 840 2570 r 129 99 each from auto metal direct will replace the rotted out sections on our e body project. These left and right trunk floor extensions part no. Because it will have you a lot more control over the whole process and it is more forgiving in case you do anything wrong.