Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Consolidation of powder prior to sintering
Reexamination Certificate
2006-05-02
2006-05-02
Sheehan, John P. (Department: 1742)
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Consolidation of powder prior to sintering
C419S066000, C425S078000, C425S352000, C425S354000, C425S355000, C148S101000, C148S102000, C148S103000, C148S104000
Reexamination Certificate
active
07037465
ABSTRACT:
A powder compacting method includes the steps of: providing a powder material; loading the powder material into a cavity; uniaxially pressing the powder material, which has been loaded into the cavity, between two opposed press surfaces, thereby obtaining a compact, wherein at least one of the two press surfaces is deformed elastically under a compacting pressure when contacting with the powder material in the cavity; and unloading the compact from the cavity. According to this powder compacting method, even when the powder material has a non-uniform fill density distribution, a compact with a uniform density distribution can be obtained at a high productivity.
REFERENCES:
patent: 3593380 (1971-07-01), Voronov et al.
patent: 4770723 (1988-09-01), Sagawa et al.
patent: 4792368 (1988-12-01), Sagawa et al.
patent: 5250255 (1993-10-01), Sagawa et al.
patent: 5383978 (1995-01-01), Yamamoto et al.
patent: 5449481 (1995-09-01), Sagawa et al.
patent: 6355210 (2002-03-01), Hirabayashi
patent: 6474576 (2002-11-01), Oota et al.
patent: 1 020 285 (2000-07-01), None
patent: 51-136198 (1976-11-01), None
patent: 57-124599 (1982-08-01), None
patent: 61-196516 (1986-12-01), None
patent: 62-267401 (1987-11-01), None
patent: 63-110521 (1988-07-01), None
patent: 10-058198 (1998-03-01), None
patent: 2000-317696 (2000-11-01), None
patent: 2001-252792 (2001-09-01), None
Costellia Jeffrey L.
Neomax Co. Ltd.
Nixon & Peabody LLP
Sheehan John P.
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