Welding Field. The welding process is undoubtedly one Of the greatest contributors to the efficient and economical manufacture Of the modern automobile. It has made possible higher standards Of body design and may be given almost exclusive credit for the light weight and great strength Of the present-day motor car, producing stronger and better working parts through the use Of pressed steel instead Of the heavy castings or riveted parts, such as axle housings, Fig. L, and manifolds, tanks, bodies, etc., Fig. 2.