| 摘要 |
PROBLEM TO BE SOLVED: To enhance the yield of material by fracturing a magnet body along a fracture schedule line.SOLUTION: A production apparatus 40 of magnet pieces composing a magnet body for field pole produces the magnet pieces by bringing the blade 51 of an upper die 50 into contact with a magnet body 30 supported on a lower die 41 and pressing the magnet body 30, thereby fracturing and splitting the magnet body 30 along a fracture schedule line. An elastic part 52 consisting of an elastic body being deformed by the pressing force of the blade 51 is provided between the lower die 41 and the magnet body 30, and/or between the magnet body 30 and the blade 51 when fracturing the magnet body 30. |
