Process for producing precision metal part by powder molding whe

Details Process for producing precision metal part by powder molding whe Process for producing precision metal part by powder molding whe

1991-07-23

1994-02-01

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Special medium during sintering

419 28, 419 29, 419 38, 419 36, 419 37, 419 53, 419 57, B22F 312

Patent

active

052830314

ABSTRACT:
A process for producing a precision metal part of a sintered body by powder molding comprises using a metal powder of which the oxygen content and the hydrogen reduction loss are controlled to 0.5-6 wt. % and 1-7 wt. %, respectively. The sintered body has a high density near the theoretical density and is excellent in dimensional accuracy. The molding is facilitated, and the process is simple.

REFERENCES:
patent: 3821036 (1974-06-01), Copeland et al.
patent: 4190490 (1980-02-01), Klein et al.
patent: 4225344 (1980-09-01), Fujimori et al.
patent: 4314849 (1982-02-01), Ro et al.
patent: 4415528 (1983-11-01), Wiech, Jr.
patent: 4713215 (1987-12-01), Madsas
patent: 4722826 (1988-02-01), Poole
patent: 4836980 (1989-06-01), Kashiwadani et al.
patent: 4867439 (1989-09-01), Kiyota
patent: 4921665 (1990-05-01), Klar et al.
patent: 4927461 (1990-05-01), Ciloglu et al.
patent: 5152847 (1992-10-01), LeBeau et al.
McDermott, John, "Powder Metals Technology", Noyes Data Corp., 1974, pp. 3-7.
Hausner, Henry, "Handbook of Powder Metallurgy", Chemical Publishing Co. Inc., 1973, pp. FIG. 7.31, FIG. 1.21.
World Patent Index, File Supplier, Abstract AN=83-06010k, Derwent Publications Ltd. London, GB; and JP-A-57 198 201 (Daido Tokushuko K.K.) Apr. 12, 1982--Abstract.
Patent Abstracts of Japan, vol. 14, No. 247 (M-978) [4190], May 25, 1990; and JP-A-270 006 (Seilo Instr. Inc.) Aug. 3, 1990-Abstracts.

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