Depending on different procedures, welding elements are welded using an arc, however, without any consumables. We distinguish the following:
| MARC - | Pad welding with magnetic rotating ARC |
| Capacitor discharge | ||
| CD - | Capacitor discharge stud welding with tip ignition | |
| Drawn arc | ||
| ARC - | Drawn arc stud welding with ceramic ferrule or shielding gas | |
| SC - | Short cycle drawn arc stud welding |
| Insulation | ||
| ISO - | Welding processes for insulation | |