Working characteristics of stud welding Arc-type bolt welding technology is to weld a columnar metal object to a metal workpiece, which is the function of stud welding. The outstanding advantages of this welding method are: 1. Reliable welding with full cross-section fusion of the bolt can be achieved in an instant. 2. No need for traditional methods such as drilling, tapping, threading, locking, riveting, etc. 3. The workpiece can ensure sealing performance after welding. 4. High efficiency, high reliability, low cost, and wide application field. 2. Scope of application In principle, all materials suitable for fusion welding can use stud welding. However, for some more sensitive steels, they may become hard and brittle due to the rapid heat/cold changes generated during the stud welding process. If two metals of different materials are welded together (such as carbon steel and stainless steel), a new alloy will be formed. These two situations should be paid attention to during construction, but "free-cutting steel" is not suitable for stud welding. Stud welding technology is now widely used in industry, and the emergence of stud welding has brought great convenience to people.