The capacitor battery will be charged according to chosen charging voltage.
The stud (with ignition tip) is placed onto the work piece and pressed by a spring in the welding gun onto the work piece (contact). The current circuit is closed.
After triggering the welding process, the rapidly increasing current evaporates the ignition tip and ignites the arc.
Stud and work piece are melted.
The stud is moved forward to the plate.
The arc is cut as soon as the stud touches the work piece
The molten zones are joining and solidifying.
Welding time is ≤ 3 msec.
Recommended plate thickness should be 1/10 d, but not less than 0.5 mm.
Gap welding is different from the procedure described above: Before welding starts, the stud is positioned in a defined and adjustable distance above the work piece (gap).
After triggering the welding process, the stud is accelerated by a spring to the plate surface.
If there is contact between the ignition tip on the work piece, the process continues as described above.
Welding time is approx. 1 msec; thus e.g. welding of aluminum becomes feasible without using a shielding gas atmosphere.
Recommended plate thickness should be 1/10 d, but not less than 0.5 mm.
