Welding Automotive Patch Panels. Now you have four weld beads holding the patch panel in place now heres a bit more advise mig welders get very hot and its possible to warp the metal in your car while welding the patch panel in place so never weld more then 1 beads at a time and move from the top to the bottom do a 1 weld on the top of the patch and then cool it off. 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.
Located in Anping County Hebei Province the famous Chinese township of wire mesh. Using the right welder makes a huge difference here. Now that the patch is in place I set the TIG 200 DC to about 80 amps max.
Now on to the most exciting part.
You can test fir the panel first with an even 116 gap around. After that you can weld the seam. Now that the patch is in place I set the TIG 200 DC to about 80 amps max. The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten.