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Title: Continuous equal channel angular pressing

Abstract

An apparatus that continuously processes a metal workpiece without substantially altering its cross section includes a wheel member having an endless circumferential groove, and a stationary constraint die that surrounds the wheel member, covers most of the length of the groove, and forms a passageway with the groove. The passageway has a rectangular shaped cross section. An abutment member projects from the die into the groove and blocks one end of the passageway. The wheel member rotates relative to the die in the direction toward the abutment member. An output channel in the die adjacent the abutment member has substantially the same cross section as the passageway. A metal workpiece is fed through an input channel into the passageway and carried in the groove by frictional drag in the direction towards the abutment member, and is extruded through the output channel without any substantial change in cross section.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Security, LLC, Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176040
Patent Number(s):
7152448
Application Number:
11/014,072
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL B21C - MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Zhu, Yuntian T., Lowe, Terry C., Valiev, Ruslan Z., and Raab, Georgy J. Continuous equal channel angular pressing. United States: N. p., 2006. Web.
Zhu, Yuntian T., Lowe, Terry C., Valiev, Ruslan Z., & Raab, Georgy J. Continuous equal channel angular pressing. United States.
Zhu, Yuntian T., Lowe, Terry C., Valiev, Ruslan Z., and Raab, Georgy J. Tue . "Continuous equal channel angular pressing". United States. https://www.osti.gov/servlets/purl/1176040.
@article{osti_1176040,
title = {Continuous equal channel angular pressing},
author = {Zhu, Yuntian T. and Lowe, Terry C. and Valiev, Ruslan Z. and Raab, Georgy J.},
abstractNote = {An apparatus that continuously processes a metal workpiece without substantially altering its cross section includes a wheel member having an endless circumferential groove, and a stationary constraint die that surrounds the wheel member, covers most of the length of the groove, and forms a passageway with the groove. The passageway has a rectangular shaped cross section. An abutment member projects from the die into the groove and blocks one end of the passageway. The wheel member rotates relative to the die in the direction toward the abutment member. An output channel in the die adjacent the abutment member has substantially the same cross section as the passageway. A metal workpiece is fed through an input channel into the passageway and carried in the groove by frictional drag in the direction towards the abutment member, and is extruded through the output channel without any substantial change in cross section.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {12}
}

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Works referenced in this record:

Microstructural evolution, microhardness and thermal stability of HPT-processed Cu
journal, October 2000


Paradox of Strength and Ductility in Metals Processed Bysevere Plastic Deformation
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Bulk nanostructured materials from severe plastic deformation
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Improvement in the r-value of aluminum strip by a continuous shear deformation process
journal, June 2000


Parametric investigation on the curling phenomenon in CONFORM process by three-dimensional finite element analysis
journal, March 2001


A study of the application of upper bound method to the CONFORM process
journal, January 2000