| 摘要 |
PROBLEM TO BE SOLVED: To perform the straightening of sintered components at high accuracy without using a plurality of dies for straightening even if the deformation of the sintered components caused by heat distortion is different for each component. SOLUTION: A sintered component W with a circular outer shape is press-fitted into a circular hole 3a of a taper die 3, and is straightened. The circular hole 3a has a taper shape formed in such a manner that the front side in the press-fitting direction is made narrow to the press-fitting side of the sintered component W, and the sintered component W is press-fitted to the taper-shaped hole 3a from the side in which the outside diameter is made large by heat deformation on sintering to be straightened. At this time, the amount of penetration of the sintered component W on the press-fitting is controlled in accordance with the amount of the deformation of the sintered component W. COPYRIGHT: (C)2004,JPO&NCIPI
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