Sudden impacts and stresses, as well as the ongoing stresses that your vehicle undergoes as a result of its workload, road conditions, and speed, can cause your vehicle's rims to become cracked, scratched, or bent. You can repair your damaged rims back to original condition, in the comfort of your garage or driveway. Repairing rims involves welding their damaged surface, followed by grinding the welded surface with an abrasive stainless steel wheel.
Clean the surface of your rims. Remove surface debris with a metal brush, and use an industrial degreaser to remove surface oils.
Heat the damaged surface of your rim, using a MAPP gas torch. You should aim to create a pool of liquid metal, without actually causing the metal surface to glow -- glowing causes deformation.
Add a thick bead of low-temperature fusion welding product. Scrape it, with the metal grater, to break up the layers of aluminum oxide that will form between the liquid metal and the product. Apply several more layers of product, scraping every time.
Allow the fusion welding product to dry, for several minutes.
Grind the welded surface, with the abrasive stainless steel grinding wheel, until the surface is smooth and uniform with the surrounding areas of the rim.
