WO2003076100A1 - Procede de fabrication d'un produit en tole d'acier a ultra haute resistance forme par etirage ou allongement - Google Patents

Procede de fabrication d'un produit en tole d'acier a ultra haute resistance forme par etirage ou allongement Download PDF

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Publication number
WO2003076100A1
WO2003076100A1 PCT/SE2003/000422 SE0300422W WO03076100A1 WO 2003076100 A1 WO2003076100 A1 WO 2003076100A1 SE 0300422 W SE0300422 W SE 0300422W WO 03076100 A1 WO03076100 A1 WO 03076100A1
Authority
WO
WIPO (PCT)
Prior art keywords
work piece
stretch
yield point
partially
temperature
Prior art date
Application number
PCT/SE2003/000422
Other languages
English (en)
Inventor
Leif Carlsson
Hans Groth
Original Assignee
Avestapolarit Ab
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 Avestapolarit Ab filed Critical Avestapolarit Ab
Priority to AU2003212760A priority Critical patent/AU2003212760A1/en
Priority to SI200331949T priority patent/SI1490187T1/sl
Priority to DE60335529T priority patent/DE60335529D1/de
Priority to US10/507,310 priority patent/US20050211347A1/en
Priority to AT03708789T priority patent/ATE493214T1/de
Priority to EP03708789A priority patent/EP1490187B1/fr
Publication of WO2003076100A1 publication Critical patent/WO2003076100A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/04—Hardening by cooling below 0 degrees Celsius

Definitions

  • the present invention relates to a method for manufacturing an ultra-high-tensile stretch formed or stretch bent sheet product of steel.
  • the object of the present invention is to provide a method for manufacturing an ultra-high-tensile stretch formed or stretch bent product of steel, that has initially been alloyed with chromium, nickel and carbon in predetermined proportions.
  • a deformation hardening can be abstracted in that the work piece and/or the tool is allowed to keep a higher temperature.
  • the stretch formed or stretch bent sheet product manufactured according to the invention is constituted of a work piece of iron, which as been alloyed with chromium, nickel and carbon in predetermined proportions.
  • the iron has been alloyed with 17% Cr, 7% Ni and 0,1% C or alloys closely related to these and the temperature of the work piece before and/or during the manufacturing operation has been kept or is kept at a controlled level, whereby a strong but controlled deformation hardening is achieved during the stretch forming or stretch bending operation when a plastic cold working of the work piece takes place in combination with maintaining a good ductility of the alloy.
  • the temperature of the finally formed stretch formed or stretch bent sheet product can be controlled directly after the working operation itself.
  • the alloyed metal work piece, that forms the initially work piece according to the invention can be formed or plastically cold worked in traditional machines but using modified tools for stretch forming or stretch bending in order to increase its yield point from an original, low yield point about 300 MPa to a final product that completely or partially obtains a yield point on more than 700 MPa.
  • the method functions also in the case you start from for example a medium high yield point i.e. 700 MPa up to a higher i.e. 1000 MPa or higher.
  • a stronger deformation hardening is obtained during all examples described above if the operation of forming or bending is made in two or several steps.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un produit en tôle d'acier à ultra haute résistance, la pièce initiale utilisée étant constituée d'une pièce en fer métallique, alliée avec du chrome, du nickel et du carbone en proportions prédéterminées. Cette pièce initiale est soumise à une déformation plastique à froid complète ou partielle par étirage ou allongement à une température et/ou à un degré de déformation prédéterminés, qui déterminent ou sont déterminant pour la limite d'élasticité du produit final, en fournissant un durcissement de déformation important, qui confère au produit final une résistance augmentée plusieurs fois totalement ou partiellement ou une limite d'élasticité supérieure, en comparaison avec la limite d'élasticité de la pièce initiale.
PCT/SE2003/000422 2002-03-13 2003-03-13 Procede de fabrication d'un produit en tole d'acier a ultra haute resistance forme par etirage ou allongement WO2003076100A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2003212760A AU2003212760A1 (en) 2002-03-13 2003-03-13 A method for manufacturing an ultra-high-tensile, stretch formed or stretch bent sheet metal product of steel
SI200331949T SI1490187T1 (sl) 2002-03-13 2003-03-13 Postopek za izdelavo produkta iz jeklene pločevine, ultra visoke trdnosti, oblikovan z nateznim preoblikovanjem ali ukrivljanjem
DE60335529T DE60335529D1 (de) 2002-03-13 2003-03-13 Verfahren zur herstellung eines ultrahochzugfesten reckgeformten oder reckgebogenen blechprodukts aus stahl
US10/507,310 US20050211347A1 (en) 2002-03-13 2003-03-13 Method for maunfacturing an ultra-high-tensile, stretch formed or stretch bent sheet metal product of steel
AT03708789T ATE493214T1 (de) 2002-03-13 2003-03-13 Verfahren zur herstellung eines ultrahochzugfesten reckgeformten oder reckgebogenen blechprodukts aus stahl
EP03708789A EP1490187B1 (fr) 2002-03-13 2003-03-13 Procede de fabrication d'un produit en tole d'acier a ultra haute resistance forme par etirage ou allongement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0200764-9 2002-03-13
SE0200764A SE526120C2 (sv) 2002-03-13 2002-03-13 Förfarande för tillverkning av en ultrahöghållfast sträckpressad eller sträckbockad produkt av stål

Publications (1)

Publication Number Publication Date
WO2003076100A1 true WO2003076100A1 (fr) 2003-09-18

Family

ID=20287257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/000422 WO2003076100A1 (fr) 2002-03-13 2003-03-13 Procede de fabrication d'un produit en tole d'acier a ultra haute resistance forme par etirage ou allongement

Country Status (10)

Country Link
US (1) US20050211347A1 (fr)
EP (1) EP1490187B1 (fr)
AT (1) ATE493214T1 (fr)
AU (1) AU2003212760A1 (fr)
DE (1) DE60335529D1 (fr)
ES (1) ES2358982T3 (fr)
PT (1) PT1490187E (fr)
SE (1) SE526120C2 (fr)
SI (1) SI1490187T1 (fr)
WO (1) WO2003076100A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008136A1 (fr) * 2005-07-08 2007-01-18 X-Marketing Procédure de fabrication de pièces présentant des dents
WO2013037999A1 (fr) * 2011-09-16 2013-03-21 Siemens Aktiengesellschaft Aube de compresseur et son procédé de fabrication

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871925A (en) * 1972-11-29 1975-03-18 Brunswick Corp Method of conditioning 18{14 8 stainless steel
US6162308A (en) 1996-06-01 2000-12-19 Thyssen Stahl Ag Process for producing an easily shaped cold-rolled sheet or strip

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871925A (en) * 1972-11-29 1975-03-18 Brunswick Corp Method of conditioning 18{14 8 stainless steel
US6162308A (en) 1996-06-01 2000-12-19 Thyssen Stahl Ag Process for producing an easily shaped cold-rolled sheet or strip

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Forming of stainless steel and heat-resisting alloys", METALS HANDBOOK, 8TH EDITION,ASM HANDBOOK COMMITEE, vol. 4, 1969, pages 353 - 371, XP002903056 *
THELNING KARL-ERIK, 1.8.4 DEFORMATIONSHDRDNING, STA) OCH VDRMEBEHANDTING, vol. 2, 1985, pages 62 - 63
THELNING KARL-ERIK: "1.8.4. Deformationshardning", STAL OCH VARMEBANDLING/AV, vol. 2, 1985, pages 62 - 63, XP002964106 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007008136A1 (fr) * 2005-07-08 2007-01-18 X-Marketing Procédure de fabrication de pièces présentant des dents
EP1948384A1 (fr) * 2005-07-08 2008-07-30 X-Marketing Procédure de fabrication de pièces présentant des dents
EP1948384A4 (fr) * 2005-07-08 2011-12-28 Marketing X Procédure de fabrication de pièces présentant des dents
WO2013037999A1 (fr) * 2011-09-16 2013-03-21 Siemens Aktiengesellschaft Aube de compresseur et son procédé de fabrication
CN103797134A (zh) * 2011-09-16 2014-05-14 西门子公司 压缩机叶片及其制造方法

Also Published As

Publication number Publication date
EP1490187A1 (fr) 2004-12-29
PT1490187E (pt) 2011-03-14
SE0200764D0 (sv) 2002-03-13
DE60335529D1 (de) 2011-02-10
ATE493214T1 (de) 2011-01-15
SE0200764L (sv) 2003-09-14
SE526120C2 (sv) 2005-07-05
ES2358982T3 (es) 2011-05-17
US20050211347A1 (en) 2005-09-29
EP1490187B1 (fr) 2010-12-29
AU2003212760A1 (en) 2003-09-22
SI1490187T1 (sl) 2011-04-29

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