Multiple punch tool set for powder compacting press

Details Multiple punch tool set for powder compacting press Multiple punch tool set for powder compacting press

1977-09-08

1979-05-08

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

425414, 425416, 425344, B30B 1102

Patent

active

041533992

ABSTRACT:
A punch and die set for operation by the ram of a powder compacting press, comprising at least three concentrically disposed telescopic punches independently reciprocable within a single die cavity. Each punch is separately supported by a punch holder plate, one of which is directly reciprocable from the press ram, another of which is reciprocable by way of appropriate abutments dependent from the first punch holder and the third of which is independently reciprocable relative to the first one by way of fluid pressure.

REFERENCES:
patent: 2509783 (1950-05-01), Richardson
patent: 2762078 (1956-09-01), Haller
patent: 3172156 (1965-03-01), Belden
patent: 3337916 (1967-08-01), Smith
patent: 3353215 (1967-11-01), Haller
patent: 3524220 (1970-08-01), Davison
patent: 3647332 (1972-03-01), Schmaus
patent: 3664784 (1972-05-01), Sibley
patent: 3671157 (1972-06-01), Smith

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