Method and apparatus for producing a workpiece by extrusion mold

Details Method and apparatus for producing a workpiece by extrusion mold Method and apparatus for producing a workpiece by extrusion mold

1978-07-31

1981-06-23

Anderson, Philip

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

72358, 264320, 264DIG64, 264DIG66, 425352, 425392, 425394, 425DIG35, 425DIG38, B21J 1302

Patent

active

042742765

ABSTRACT:
A method for making a centrosymmetrical spider of a universal joint by extrusion molding involves pressing both end faces of a cylindrical blank the same distance towards the center of the blank to force the blank material radially outwards from the center of the cylindrical blank in a stream which is symmetrical relative to the two end faces and into a cavity of a split mold.
Also disclosed is a molding apparatus for practicing the method. The apparatus includes a floating mold. One end of the apparatus can be rigidly fixed to a press for operating the punches which provide the extrusion pressure.

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