Extrusion die

Details Extrusion die Extrusion die

1981-03-02

1983-03-29

Crane, Daniel C.

Metal deforming

Tool and/or tool holder

Tool comprising closed periphery deforming passageway

B21C 2502

Patent

active

043779433

ABSTRACT:
A hydrostatic extrusion die includes a nose-cone section (21) of a high toughness tool steel and a mating rear section (22) of a high compressive strength material such as carbide. During extrusion, inwardly directed radial forces (F.sub.r ') are developed in the rear section which exactly compensates for the outwardly directed radial forces (F.sub.o) developed at the throat of the die.

REFERENCES:
patent: 3641795 (1972-02-01), Lester et al.
patent: 3918288 (1975-11-01), Verduzco et al.

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