Mould for isostatic pressing

Details Mould for isostatic pressing Mould for isostatic pressing

1996-08-16

1997-05-20

Bushey, C. Scott

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

4254052, 425436R, B29C 4300

Patent

active

056310293

ABSTRACT:
An apparatus and a method for forming compacts having reduced elephant's feet effect is disclosed. The apparatus includes a press for dry bag isostatic pressing, the press body having a cavity with at least one open end formed therein, an elastic mould, operatively positioned inside the cavity for compacting metal powder, means, operatively connected to the mould for expanding the mould and compacting the metal powder, and at least one press member having a base section substantially normal to the cavity and an insert section extending from base section into the cavity, the insert section being formed in the shape of any one of a plurality of geometric shapes.

REFERENCES:
patent: 2558823 (1951-07-01), Crowley et al.
patent: 3571854 (1971-03-01), Lundstrom
patent: 3604060 (1971-09-01), Lndstrom
patent: 3850567 (1974-11-01), Heier
patent: 3907949 (1975-09-01), Carlson
patent: 4330251 (1982-05-01), Lebas et al.
patent: 4564352 (1986-01-01), Pettersson
patent: 4604252 (1986-08-01), Stigler
patent: 4934919 (1990-06-01), Matsushita et al.
"Tooling for Cold Isostatic Pressing," KJ Morris, Isostatic Pressing Technology, edited by PJ James, Applied Science Publishers, New York, Chapter 4, pp. 91-119.

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