A Stud Welding Machine is a high-speed metal fastening process in which a metal fastener can be applied by a welding arc to another piece of metal. Stud welding is a complete one-step fastening system, using fasteners called weld studs. Weld studs come in a variety of designs, threaded, unthreaded, tapped, etc., sizes and shapes for a wide range of applications. Stud Welding Machine is used in a process by which a metal stud is joined to a metal workpiece by heating both parts with an arc.