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A new severe plastic deformation method : Twist extrusion

Beygelzimer, Yan; Orlov, Dmitry and Varyukhin, Victor (2002) Ultrafine Grained Materials II, 2002 In TMS Annual Meeting p.297-304
Abstract

One of the most effective methods for obtaining bulk ultrafine-grained materials is severe plastic deformation that is typically done using equal channel angular pressing. In this work we describe and analyze a new method for obtaining severe plastic deformations proposed by the first author. The method is based on direct extrusion and was called "twist extrusion" The main idea of the method is to extrude a prism work piece through a die with a twist channel. The channel cross-section that is orthogonal to the pressing axis, is constant along this axis. In the general case, it is possible to have channels of quite arbitrary cross-section. Several variations of twist extrusion corresponding to known direct extrusion schemes are also... (More)

One of the most effective methods for obtaining bulk ultrafine-grained materials is severe plastic deformation that is typically done using equal channel angular pressing. In this work we describe and analyze a new method for obtaining severe plastic deformations proposed by the first author. The method is based on direct extrusion and was called "twist extrusion" The main idea of the method is to extrude a prism work piece through a die with a twist channel. The channel cross-section that is orthogonal to the pressing axis, is constant along this axis. In the general case, it is possible to have channels of quite arbitrary cross-section. Several variations of twist extrusion corresponding to known direct extrusion schemes are also possible; for example, twist extrusion in a container with a thin lubrication layer, hydrostatic or hydromechanical twist extrusion. We argue that in some cases twist extrusion has certain advantages. In particular, it allows to obtain not only bulks, but also end products in the form of a prism with an arbitrary cross-section.

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author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
TMS Annual Meeting
editor
Zhu, Y.T.; Langdon, T.G.; Mishra, R.S.; Semiatin, S.L.; Saran, M.J.; Lowe, T.C.; ; ; ; ; and
pages
8 pages
conference name
Ultrafine Grained Materials II, 2002
external identifiers
  • scopus:6444245065
language
English
LU publication?
no
id
ceb9fb03-83fc-4b81-b722-443cb9f8d68b
date added to LUP
2016-06-20 15:47:48
date last changed
2017-11-12 04:22:41
@inproceedings{ceb9fb03-83fc-4b81-b722-443cb9f8d68b,
  abstract     = {<p>One of the most effective methods for obtaining bulk ultrafine-grained materials is severe plastic deformation that is typically done using equal channel angular pressing. In this work we describe and analyze a new method for obtaining severe plastic deformations proposed by the first author. The method is based on direct extrusion and was called "twist extrusion" The main idea of the method is to extrude a prism work piece through a die with a twist channel. The channel cross-section that is orthogonal to the pressing axis, is constant along this axis. In the general case, it is possible to have channels of quite arbitrary cross-section. Several variations of twist extrusion corresponding to known direct extrusion schemes are also possible; for example, twist extrusion in a container with a thin lubrication layer, hydrostatic or hydromechanical twist extrusion. We argue that in some cases twist extrusion has certain advantages. In particular, it allows to obtain not only bulks, but also end products in the form of a prism with an arbitrary cross-section.</p>},
  author       = {Beygelzimer, Yan and Orlov, Dmitry and Varyukhin, Victor},
  booktitle    = {TMS Annual Meeting},
  editor       = {Zhu, Y.T. and Langdon, T.G. and Mishra, R.S. and Semiatin, S.L. and Saran, M.J. and Lowe, T.C.},
  language     = {eng},
  pages        = {297--304},
  title        = {A new severe plastic deformation method : Twist extrusion},
  year         = {2002},
}