Method of manufacturing a coil

摘要

By applying a tension (a,b) to the conductor (21) to be cut off, and locally heating (22) the intended cutting position to provide a temperature difference of 20 to 300 DEG C from other parts, the cutting position is lowered in tensile force as compared with other parts, and by applying a tension, the concentrated stress is added, and a large distortion is generated to cut off, so that the cutting position may be stabilized.