Magnetic pulse welding of metal tubes - where inductor fed with high current pulses applies radial pressure on tube

摘要

Inductor for the magnetic pulse working or welding of metal tubes, has an induction coil formed of flat, insulated conductors. The conductors consist of split ring discs, or segments of ring discs which are bent into a spiral so that the discs can mate to form a multistart helix. The ends of each single turn disc is at 90 degrees to the coil axis. The ends of each single turn are pref. extended outwards to form a path for the current.