SAE J 1827:1987-05-01

The most important aspect of structural unibody repair is the correct application of Gas Metal Arc Welding, or G.M.A.W (formerly called Metallic Inert Gas, M.I.G) welding. It is the intent of the SAE Recommended Practice to inform the body repairman on how to evaluate his welds and check if the welder is properly adjusted. By doing this, he can improve the quality of his structural repairs and develop consistent welds.