Apparatus for producing spherical articles

Details Apparatus for producing spherical articles Apparatus for producing spherical articles

1977-01-21

1977-12-06

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Means for molding powdered metal

425416, 425410, B30B 1102

Patent

active

040614522

ABSTRACT:
A press apparatus for compacting powder material into generally spherical articles by way of a tooling arrangement comprising a die having a bore, a punch having an upper face defining a generally hemispherical cavity reciprocably movable along the axis of the die bore and a counterpunch positionable over the opening of the die bore. The lower face of the counterpunch defines a generally hemispherical cavity of the same diameter as the generally hemispherical cavity defined by the face of the punch. The generally hemispherical cavities are in alignment with each other and define a spherical mold cavity. During the compacting step, the counterpunch is positioned with its lower face abutting the upper surface of the die plate and compaction of the powder material is achieved entirely by movement of the punch in an upward direction.

REFERENCES:
patent: 1684984 (1928-09-01), Claus
patent: 2411379 (1946-11-01), Langhammer
patent: 3158547 (1964-11-01), Smith
patent: 3255279 (1966-06-01), Smith
patent: 3328840 (1967-07-01), Vinson
patent: 3382540 (1968-05-01), Van De Moden et al.
patent: 3775032 (1973-11-01), Smith et al.

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