| 摘要 |
PURPOSE:To eliminate an improper insulation between adjacent coil strands by contacting an auxiliary material with the coil strand end of a coil unit blank, emitting a laser light to the material and bonding the ends of the coil strands. CONSTITUTION:An outer cylindrical coil 22 in which a plurality of coil strands 1,... are aligned to form a cylinder at the end outside an inner cylindrical coil 21 in which a plurality of coil strands 1,... are aligned to form a cylinder at the end is prepared so that the end surface is aligned and engaged. An auxiliary material 32 is contacted with the end surface, a laser light 31 is emitted to the material 32, and the reflecting light of the member 32 is emitted to the coil strand ends. |
