Plastic deformation of crystalline materials

Details Plastic deformation of crystalline materials Plastic deformation of crystalline materials

1994-06-17

1996-05-07

Crane, Daniel C.

Metal deforming

By extruding through orifice

72377, B21C 2300

Patent

active

055135129

ABSTRACT:
A method of plastic deformation of metals, alloys and other crystalline materials for controlling their structure and texture comprises the steps of extruding a workpiece through two intersecting passages having equal cross-sections corresponding to a cross-section of a workpiece, the pressing including determining during each passage of a workpiece three main directions corresponding to a flow direction, a perpendicular to the flow plane, and a perpendicular to the first mentioned and second mentioned directions, changing the directions during placement of a workpiece in its initial position for each passage relative to a corresponding position in a predetermined passage by turning the workpiece by a predetermined angle around axes of the main directions, and cyclically repeating the method.

REFERENCES:
patent: 3146886 (1964-09-01), Scribner

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