Method and apparatus for producing a refined grain structure

Details Method and apparatus for producing a refined grain structure Method and apparatus for producing a refined grain structure

2005-03-15

2005-03-15

Tolan, Ed (Department: 3725)

Metal deforming

By extruding through orifice

With metal-deforming other than by extrusion

C072S253100, C072S259000, C072S264000

Reexamination Certificate

active

06865919

ABSTRACT:
The apparatus for operating on a workpiece includes a die defining first and second apertures and an interior therebetween. The first aperture and the interior of the die are structured to receive the workpiece. The interior of the die can be structured to shape the workpiece into a predetermined configuration. The apparatus includes at least one rotatable pin extending at least partially into the interior of the die. The pin is structured to at least partially stir the workpiece as the workpiece moves through the interior of the die to thereby refine the grain structure of the workpiece.

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