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WO2005039792A8 - A method of treating a metal billet - Google Patents

A method of treating a metal billet

Info

Publication number
WO2005039792A8
WO2005039792A8 PCT/GB2004/003961 GB2004003961W WO2005039792A8 WO 2005039792 A8 WO2005039792 A8 WO 2005039792A8 GB 2004003961 W GB2004003961 W GB 2004003961W WO 2005039792 A8 WO2005039792 A8 WO 2005039792A8
Authority
WO
WIPO (PCT)
Prior art keywords
passage
billet
dimensions
plane
forcing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2004/003961
Other languages
French (fr)
Other versions
WO2005039792A1 (en
Inventor
Andrzej Rosochowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Strathclyde
Original Assignee
University of Strathclyde
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Strathclyde filed Critical University of Strathclyde
Publication of WO2005039792A1 publication Critical patent/WO2005039792A1/en
Anticipated expiration legal-status Critical
Publication of WO2005039792A8 publication Critical patent/WO2005039792A8/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/01—Extruding metal; Impact extrusion starting from material of particular form or shape, e.g. mechanically pre-treated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

A method of treating a metal billet of pre-determined dimensions to change said billet's mechanical and/or physical properties by reducing the billet's grain size, the method involving subjecting the billet to plastic strain in three dimensions in a single operation. More specifically, the method involves forcing the billet through a first passage (1); forcing the billet from the first passage (1) into a second passage (2), the second passage (2) being consecutive with and inclined to the first passage (1), whereby the first and second passages (1 and 2) together define a first plane (4), and forcing the billet from said second passage (2) into a third passage (3), the third passage (3) being consecutive with and inclined to the second passage (2), whereby the second and third passages (2 and 3) together define a second plane (5), the second plane (5) being different from the first plane (4). As the billet exits the third passage (3) its grain size is reduced due to the billet having been subjected to plastic strain in three dimensions. Ideally, the dimensions of the billet on exiting the third passage (3) are substantially the same as the dimensions of the billet on entry to the first passage (1).
PCT/GB2004/003961 2003-10-08 2004-09-16 A method of treating a metal billet Ceased WO2005039792A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0323541.3 2003-10-08
GB0323541A GB0323541D0 (en) 2003-10-08 2003-10-08 A method of treating a metal billet

Publications (2)

Publication Number Publication Date
WO2005039792A1 WO2005039792A1 (en) 2005-05-06
WO2005039792A8 true WO2005039792A8 (en) 2006-05-18

Family

ID=29433491

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2004/003961 Ceased WO2005039792A1 (en) 2003-10-08 2004-09-16 A method of treating a metal billet

Country Status (2)

Country Link
GB (1) GB0323541D0 (en)
WO (1) WO2005039792A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005049369B4 (en) * 2005-10-12 2008-11-20 Technische Universität Clausthal Process for the production of fine-grained, polycrystalline materials or workpieces and extrusion presses
DE102009050543B3 (en) * 2009-10-23 2011-05-26 Peter Prof. Dr.-Ing. Dipl.-Wirtsch.-Ing. Groche Method and device for producing fine-grained, polycrystalline materials or workpieces from elongated or tubular semi-finished products
DE102013012586A1 (en) * 2013-07-30 2015-02-05 Daimler Ag Component with continuous hollow cross-section and a method for its production
EP3241625B1 (en) * 2016-05-06 2020-07-01 AIT Austrian Institute of Technology GmbH Device and method for plastic deformation of a workpiece made of metal or a metal alloy, using ecap

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU515968A2 (en) * 1974-10-11 1976-05-30 Физико-технический институт АН Белорусской ССР Device for hardening materials pressure
JP3268639B2 (en) * 1999-04-09 2002-03-25 独立行政法人産業技術総合研究所 Strong processing equipment, strong processing method and metal material to be processed
JP2003019532A (en) * 2001-07-02 2003-01-21 Mitsubishi Heavy Ind Ltd Method and device for manufacturing metallic material of micro-structure
AT411027B (en) * 2001-09-25 2003-09-25 Reinhard Dipl Ing Ddr Pippan DEVICE AND METHOD FOR PRODUCING FINE CRYSTALLINE MATERIALS
JP2003245712A (en) * 2002-02-26 2003-09-02 Mitsubishi Heavy Ind Ltd Die for extrusion, and apparatus and method for manufacturing fine-structured metallic material
JP3735323B2 (en) * 2002-07-19 2006-01-18 三菱重工業株式会社 Method for producing plate material made of Mg or Mg alloy

Also Published As

Publication number Publication date
GB0323541D0 (en) 2003-11-12
WO2005039792A1 (en) 2005-05-06

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DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
CFP Corrected version of a pamphlet front page
CR1 Correction of entry in section i

Free format text: IN PCT GAZETTE 18/2005 UNDER (72, 75) THE NAME SHOULD READ "ROSOCHOWSKI, ANDRZEJ"

122 Ep: pct application non-entry in european phase