Metal working – Method of mechanical manufacture – Process for making bearing or component thereof
Patent
1997-07-31
2000-04-18
Bryant, David P.
Metal working
Method of mechanical manufacture
Process for making bearing or component thereof
264320, B23P 1500
Patent
active
060499834
ABSTRACT:
A cylindrical sintered material is placed in a cavity composed of die, a core disposed in the center of the die, and a pair of upper and lower punches provided within the die and compressed by the upper and lower punches. A gap is provided between an internal circumferential portion of the sintered material and an external circumferential portion of the core. Consequently, when the sintered material is compressed, plastic flow is produced at both ends of the sintered material so that an internal circumferential portions at corresponding portions protrude inward in a radius direction till the internal circumferential portions come into contact with the core, so that slide portions are formed.
REFERENCES:
patent: 4524342 (1985-06-01), Mas
patent: 5519933 (1996-05-01), Sakashita et al.
patent: 5645355 (1997-07-01), Tokushima et al.
patent: 5704718 (1998-01-01), Mori et al.
61-124701, dated Aug. 5, 1986, Kato, Abstract of Japanese Utility Model Publication.
JP 47-36739, dated Nov. 7, 1972, Shirokura, Abstract of Japanese Utility Model Publication.
JP Pub. No. 07-217646, published 8/14/5/95, Sakashita.
Miyasaka Motohiro
Takehana Toshikazu
Bryant David P.
Butler Marc W.
Hitachi Powdered Metal Co. Ltd.
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