Device with electrodes for the formation of a ball at the extremity of a wire

摘要

The device has an electrode (6) with a tip (9) and another electrode that is mechanically and electrically rigidly connected to the electrode (6). A distance between the tip of the electrode (6) and an end of a wire (2) is smaller than a distance between any point on the latter electrode and the end of the wire. An electrical spark (4) is generated only between the tip of the electrode (6) and the wire.