Cold welding or contact welding is a solid-state welding process in which joining takes place without fusion or heating at the interface of the two parts to be welded. Unlike in the fusion-welding processes, no liquid or molten phase is present in the joi

2 Safety Practices in Welding INTRODUCTION Arc welding is a safe occupation when sufficient measures are taken to protect the welder from potential hazards.

Equipment. The SAW equipment components required for submerged arc welding are shown by figure 10-59. Equipment consists of a welding machine or power source, the wire feeder and control system, the welding torch for automatic welding or the welding gun a