SE526120C2 - Process for the manufacture of an ultra-high-strength stretched or stretched product of steel - Google Patents
Process for the manufacture of an ultra-high-strength stretched or stretched product of steelInfo
- Publication number
- SE526120C2 SE526120C2 SE0200764A SE0200764A SE526120C2 SE 526120 C2 SE526120 C2 SE 526120C2 SE 0200764 A SE0200764 A SE 0200764A SE 0200764 A SE0200764 A SE 0200764A SE 526120 C2 SE526120 C2 SE 526120C2
- Authority
- SE
- Sweden
- Prior art keywords
- yield strength
- strength
- deformation
- partially
- stretch
- Prior art date
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
Abstract
Description
-rnfa qng och även värden långt därutöver, exempelvis 1500 MPa. Detta resultat med ett kraftigt och kontrollerat deformationshårdnande av hela eller delar av produkten uppnås under sträckpressnings- eller sträckbockningsoperationen genom att produkten plastisk kallbearbetas i minst ett steg i en eller flera riktningar i kombination med att legeringen upprätthåller en god duktilitet under sträckpressningsoperationen vid en till den önskade slut- produktens sträckgräns avpassad temperatur och samtidigt till en till den likaledes önskade slutproduktens sträckgräns avpassad deformationsgrad. Om man har en låg eller måttlig deformations- grad och önskar en hög hållfasthet kan man kompensera detta med en lägre temperatur, dvs. genom att kyla metallämnet före, under och/eller efter bearbetningsoperationen, genom kylning av hela eller delar av sträckpressnings- eller sträckbockningsverktyget, eller genom en kombination av dessa åtgärder under bearbetnings- operationen. Om man har en hög deformationsgrad, så kan man mot- verka ett deformationshàrdnande genom att arbetsstycket och/ eller verktyget får hålla en högre temperatur. -rnfa qng and also values far beyond that, for example 1500 MPa. This result with a strong and controlled deformation hardening of all or parts of the product is achieved during the stretch pressing or stretch bending operation by plastically cold working the product in at least one step in one or more directions in combination with the alloy maintaining a good ductility during the stretch pressing operation. temperature adjusted to the yield strength of the final product and at the same time to a degree of deformation adapted to the yield strength of the like product desired. If you have a low or moderate degree of deformation and want a high strength, you can compensate for this with a lower temperature, ie. by cooling the metal blank before, during and / or after the machining operation, by cooling all or part of the stretch pressing or stretch bending tool, or by a combination of these measures during the machining operation. If you have a high degree of deformation, you can counteract a deformation hardening by allowing the workpiece and / or the tool to maintain a higher temperature.
Uppfinningen beskrivs närmare nedan med hjälp av nedanstående utföringsexempel.The invention is described in more detail below with the aid of the following exemplary embodiments.
Vid det föredragna utföringsexemplet enligt uppfinningen ut- göres den sträckpressade eller sträckbockade produkt, som till- verkas enligt uppfinningen, av ett metallämne av järn, som legerats med krom, nickel och kol i förutbestämda proportioner.In the preferred embodiment according to the invention, the stretch-pressed or stretch-bent product, which is manufactured according to the invention, consists of a metal blank of iron, alloyed with chromium, nickel and carbon in predetermined proportions.
I det valda exemplet har järnet legerats med 17% Cr, 7% Ni och O,1% C eller till dessa näraliggande legeringar samt att tem- peraturen hos ämnet före och/eller under tillverkningsprocessen har erhållit eller hålls vid en kontrollerad nivå, vilken är -196°C<=T<=70°C i och för åstadkommande under sträckpressnings- eller sträckbockningsoperationen ett kraftigt men kontrollerat deformationshàrdnande vid en plastisk kallbearbetning av ämnet i kombination med att legeringen upprätthåller god duktilitet.In the selected example, the iron has been alloyed with 17% Cr, 7% Ni and 0.1% C or to these adjacent alloys and the temperature of the substance before and / or during the manufacturing process has been maintained or maintained at a controlled level, which is -196 ° C <= T <= 70 ° C in order to achieve during the stretch pressing or bending operation a strong but controlled deformation hardening during a plastic cold working of the blank in combination with the alloy maintaining good ductility.
Vidare kan temperaturen styras hos den färdigformade, sträck- pressade eller sträckbockade produkten direkt efter själva bearbetningsprocessen. Det legerade metallämnet, som bildar det ingående ämnet enligt uppfinningen, kan formas eller plastiskt kallbearbetas i traditionella maskiner, men med modifierade verktyg, för sträckpressning eller sträckbockning för att höja dess sträckgräns från en ursprunglig låg sträckgräns på ca 300 MPa till en slutprodukt, som helt eller partiellt får en sträckgräns på mer än 700 MPa.Furthermore, the temperature of the pre-formed, stretch-pressed or stretch-bent product can be controlled directly after the processing process itself. The alloy metal blank, which forms the constituent material according to the invention, can be molded or plastically cold processed in traditional machines, but with modified tools, for stretch pressing or stretch bending to raise its yield strength from an initial low yield strength of about 300 MPa to a final product, which completely or partially has a yield strength of more than 700 MPa.
Förfarandet fungerar även om man går från en t.ex. medelhög sträckgräns av säg 700 MPa till en högre säg 1000 MPa eller mer.The procedure works even if you go from an e.g. medium yield strength of say 700 MPa to a higher say 1000 MPa or more.
Ett kraftigare deformationshårdnande erhålls vid samtliga ovan beskrivna fall om man gör pressningen eller bockningen i två eller flera steg.A stronger deformation hardening is obtained in all the cases described above if the pressing or bending is done in two or more steps.
Claims (7)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200764A SE526120C2 (en) | 2002-03-13 | 2002-03-13 | Process for the manufacture of an ultra-high-strength stretched or stretched product of steel |
SI200331949T SI1490187T1 (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 |
PCT/SE2003/000422 WO2003076100A1 (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 |
EP03708789A EP1490187B1 (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 |
AT03708789T ATE493214T1 (en) | 2002-03-13 | 2003-03-13 | METHOD FOR PRODUCING AN ULTRA HIGH TENSILE STRETCH-FORMED OR STRETCH-BENT SHEET METAL PRODUCT MADE OF STEEL |
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 |
DE60335529T DE60335529D1 (en) | 2002-03-13 | 2003-03-13 | METHOD FOR PRODUCING A ULTRA-HIGH-TERM RECK FORMED OR RECKBENGED STEEL PANEL PRODUCT |
PT03708789T PT1490187E (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 |
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 |
ES03708789T ES2358982T3 (en) | 2002-03-13 | 2003-03-13 | A METHOD FOR MANUFACTURING A METAL SHEET STEEL, ULTRA-HIGH ELASTICITY PRODUCT, CONFORMED BY STRETCHED OR STRETCHED. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200764A SE526120C2 (en) | 2002-03-13 | 2002-03-13 | Process for the manufacture of an ultra-high-strength stretched or stretched product of steel |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0200764D0 SE0200764D0 (en) | 2002-03-13 |
SE0200764L SE0200764L (en) | 2003-09-14 |
SE526120C2 true SE526120C2 (en) | 2005-07-05 |
Family
ID=20287257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0200764A SE526120C2 (en) | 2002-03-13 | 2002-03-13 | Process for the manufacture of an ultra-high-strength stretched or stretched product of steel |
Country Status (10)
Country | Link |
---|---|
US (1) | US20050211347A1 (en) |
EP (1) | EP1490187B1 (en) |
AT (1) | ATE493214T1 (en) |
AU (1) | AU2003212760A1 (en) |
DE (1) | DE60335529D1 (en) |
ES (1) | ES2358982T3 (en) |
PT (1) | PT1490187E (en) |
SE (1) | SE526120C2 (en) |
SI (1) | SI1490187T1 (en) |
WO (1) | WO2003076100A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0501596L (en) * | 2005-07-08 | 2006-05-02 | Marketing X | Method and apparatus for manufacturing details showing teeth |
DE102011082850A1 (en) | 2011-09-16 | 2013-03-21 | Siemens Aktiengesellschaft | Compressor blade and method for its production |
Family Cites Families (2)
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 |
DE19622164C1 (en) | 1996-06-01 | 1997-05-07 | Thyssen Stahl Ag | Cold rolled steel sheet with good drawing properties |
-
2002
- 2002-03-13 SE SE0200764A patent/SE526120C2/en not_active IP Right Cessation
-
2003
- 2003-03-13 US US10/507,310 patent/US20050211347A1/en not_active Abandoned
- 2003-03-13 PT PT03708789T patent/PT1490187E/en unknown
- 2003-03-13 SI SI200331949T patent/SI1490187T1/en unknown
- 2003-03-13 ES ES03708789T patent/ES2358982T3/en not_active Expired - Lifetime
- 2003-03-13 AT AT03708789T patent/ATE493214T1/en not_active IP Right Cessation
- 2003-03-13 DE DE60335529T patent/DE60335529D1/en not_active Expired - Lifetime
- 2003-03-13 AU AU2003212760A patent/AU2003212760A1/en not_active Abandoned
- 2003-03-13 EP EP03708789A patent/EP1490187B1/en not_active Expired - Lifetime
- 2003-03-13 WO PCT/SE2003/000422 patent/WO2003076100A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003076100A1 (en) | 2003-09-18 |
SE0200764D0 (en) | 2002-03-13 |
SI1490187T1 (en) | 2011-04-29 |
PT1490187E (en) | 2011-03-14 |
SE0200764L (en) | 2003-09-14 |
DE60335529D1 (en) | 2011-02-10 |
ES2358982T3 (en) | 2011-05-17 |
ATE493214T1 (en) | 2011-01-15 |
EP1490187B1 (en) | 2010-12-29 |
AU2003212760A1 (en) | 2003-09-22 |
US20050211347A1 (en) | 2005-09-29 |
EP1490187A1 (en) | 2004-12-29 |
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Legal Events
Date | Code | Title | Description |
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NUG | Patent has lapsed |