EP2449145A1 - Bande en almgsi pour applications à exigences élevées de déformation - Google Patents

Bande en almgsi pour applications à exigences élevées de déformation

Info

Publication number
EP2449145A1
EP2449145A1 EP10723562A EP10723562A EP2449145A1 EP 2449145 A1 EP2449145 A1 EP 2449145A1 EP 10723562 A EP10723562 A EP 10723562A EP 10723562 A EP10723562 A EP 10723562A EP 2449145 A1 EP2449145 A1 EP 2449145A1
Authority
EP
European Patent Office
Prior art keywords
strip
hot
aluminum strip
aluminum
state
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.)
Granted
Application number
EP10723562A
Other languages
German (de)
English (en)
Other versions
EP2449145B1 (fr
Inventor
Henk-Jan Brinkman
Dietmar Schröder
Eike Brünger
Kai-Friedrich Karhausen
Thomas Wirtz
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.)
Speira GmbH
Original Assignee
Hydro Aluminium Deutschland GmbH
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
Family has litigation
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Application filed by Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Priority to EP10723562.4A priority Critical patent/EP2449145B1/fr
Publication of EP2449145A1 publication Critical patent/EP2449145A1/fr
Application granted granted Critical
Publication of EP2449145B1 publication Critical patent/EP2449145B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D7/00—Casting ingots, e.g. from ferrous metals
    • B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/05—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions

Definitions

  • the invention relates to a method for producing a strip from an AlMgSi alloy, in which an ingot of AlMgSi alloy is cast, the roll ingot is subjected to homogenization, the roll bar rolled to rolling temperature is hot rolled and then optionally cold rolled to final thickness. Moreover, the invention relates to an aluminum strip of an AlMgSi alloy and its advantageous use.
  • Aluminum alloy sheets for the production of hoods and other body parts of a motor vehicle particularly important.
  • AlMgSi alloys whose main alloying components are magnesium and Are silicon, have relatively high strengths at the same time good forming behavior and excellent
  • AlMgSi alloys are the same
  • Alloy types AA6XXX for example, the alloy types AA6016, AA6014, AA6181, AA6060 and AA6111.
  • Aluminum strips are made of an AlMgSi alloy
  • the state T6 is set after quenching by thermal aging at temperatures between 100 0 C and 220 0 C.
  • the present invention is therefore based on the object to provide a method for producing an aluminum strip of an AlMgSi alloy and an aluminum strip available, which has a higher elongation in the state T4 and thus allows higher degrees of deformation in the production of structural components.
  • the present invention is based on the object to propose advantageous uses of a sheet produced from the aluminum strip according to the invention.
  • the above-indicated object for a method for producing a strip from an AlMgSi alloy is achieved in that the hot strip immediately after the discharge from the last hot roll pass a temperature of 130 0 C,
  • the hot strip preferably has a maximum temperature of 100 0 C and the hot strip is wound at this or a lower temperature.
  • Quenching ie by accelerated cooling, can be significantly reduced. Due to the rapid cooling of a hot strip temperature between 230 0 C and 550 0 C to a maximum of 130 0 C, preferably at most 100 0 C at the outlet of the last hot rolling pass, the structural state of the hot strip is frozen, so that coarse precipitates can no longer form.
  • the resulting aluminum strip has a clear after solution heat treatment and quenching to final thickness improved elongation at normal strengths in state T4 and equal or even improved curability to state T6. This combination of properties has not yet been achieved for strips of AlMgSi alloys.
  • this cooling process takes place within the last two hot rolling passes, i. the
  • a board cooler consists of an arrangement of cooling or
  • Lubricant nozzles which a rolling emulsion on the
  • the sinker cooler is often present in a hot rolling mill to roll rolled hot strip before
  • the invention To set the winding temperature.
  • the hot rolling temperature is above the recrystallization temperature of a metal, ie at
  • penultimate hot rolling pass at least 230 0 C, preferably above 400 ° C, according to a next embodiment of
  • inventive method achieved that particularly small MgaSi excretions are present in the quenched hot strip, since the largest proportion of alloying components
  • Magnesium and silicon are present at these temperatures in the dissolved state in the aluminum matrix. This advantageous state of the hot strip is quasi “frozen” by quenching.
  • the thickness of the finished hot strip is 3 mm to 12 mm, preferably 3.5 mm to 8 mm, so that conventional cold rolling stands for cold rolling can be used.
  • the aluminum alloy used is from
  • Alloy type AA ⁇ xxx preferably AA6014, AA6016, AA6060, A ⁇ III or AA6181.
  • All alloy types AA ⁇ xxx have in common that they have a particularly good forming behavior characterized by high elongation values in the state T4 and very high
  • the finished rolled aluminum strip is a
  • Heat treatment wherein the aluminum strip is heated to more than 100 0 C and then at a temperature of more than 55 0 C, preferably more than 85 0 C wound and outsourced.
  • This embodiment of the method after cold aging by a shorter heating phase at lower temperatures, allows to set the state T6 in the aluminum strip or sheet in which the sheet-formed or strip-formed components are used in the application.
  • This rapid curing aluminum strip is for this purpose heated to temperatures of about 185 0 C for only 20 min. In order to achieve the higher yield limits in the state T ⁇ .
  • the elongation at break values Aso of the aluminum strips produced with this embodiment of the method according to the invention are slightly below 29%.
  • the aluminum strip produced according to the invention is still characterized by a very good uniform elongation A 9 of more than 25% after aging in state T4.
  • Equal expansion A g is the maximum elongation of the sample at which no constriction of the sample is observed during the tensile test.
  • the sample is in the range of
  • the uniform elongation significantly influences the forming behavior, since this determines the maximum degree of deformation of the material used in practice. In this respect, with the inventive method a
  • An aluminum alloy of the type AA6016 has the following
  • the strength of the aluminum tape is suitable for magnesium contents of less than 0.25% by weight.
  • Proportion should be limited to a maximum of 0.5% by weight in order to prevent gross precipitation.
  • Copper content to a maximum of 0.2 wt .-% leads above all to improved corrosion resistance of the aluminum alloy in the specific application.
  • the manganese content of less than 0.2% by weight reduces the tendency to form coarser Mangangausscheidungen.
  • chromium ensures a fine microstructure, it should be limited to 0.1% by weight in order to avoid coarse precipitation.
  • a reduction of the zinc content to a maximum of 0.1% by weight improves in particular the corrosion resistance of the aluminum alloy or of the finished sheet in the respective application.
  • titanium provides grain refining during casting, but should be limited to a maximum of 0.1% by weight for a good grain size
  • An aluminum alloy of the type AA6060 has the following
  • Residual Al and unavoidable impurities up to a total of 0.15%, individually up to a maximum of 0.05%.
  • inventive method can be prevented, so that a sheet having an improved elongation and high
  • Sheets can be provided. The lesser
  • An aluminum alloy of the type AA6014 has the following
  • Residual Al and unavoidable impurities up to a total of 0.15%, individually up to a maximum of 0.05%.
  • An aluminum alloy of type AA6181 has the following
  • Residual Al and unavoidable impurities up to a total of 0.15%, individually up to a maximum of 0.05%.
  • An aluminum alloy of type AA6111 has the following
  • Residual Al and unavoidable impurities up to a total of 0.15%, individually up to a maximum of 0.05%. Due to the increased copper content, the AA6111 alloy generally shows higher strength values in the T6 operating condition, but is known as
  • an aluminum strip consisting of an AlMgSi alloy, characterized in that the
  • the delivery state T4 is usually by a solution treatment with quenching and a
  • Aluminum strip according to the invention therefore permits maximum degrees of deformation due to the high elongation values with maximum values for the yield strength RpO, 2 in the finished sheet metal or
  • the uniform elongation A g is more than 25%.
  • the uniform expansion significantly determines the maximum degree of deformation of the aluminum strip or the sheet produced therefrom in the manufacture of components, since uncontrolled constrictions during manufacture avoided Need to become.
  • the aluminum strip according to the invention has a particularly high forming reserve with respect to constrictions and can therefore be converted to components with greater process reliability.
  • the aluminum strip according to the invention in state T6 that is to say in the use state or application state, has a yield strength RpO, 2 of more than 185 MPa at an elongation A ⁇ 0 of at least 15%.
  • the aluminum strip according to the invention produced aluminum tapes in the state T6, which have undergone a hot aging at 205 ° C / 30 min. After a solution heat treatment and quenching (state T4). Due to the high yield strengths in the state T6 with very good elongation values in the state T4, the aluminum strip according to the invention is suitable, for example, for use in the
  • T6 temper an Dehngrenzendifferenz ⁇ RpO, 2 between T6 and T4 of at least 80 MPa.
  • the increase in the yield strength from state T4 to state T6 is particularly high in the case of the aluminum strip according to the invention.
  • Aluminum strip can therefore be converted very well in the condition T4 and then put into a high-strength condition (state T6) by heat aging.
  • state T6 For the necessary, complex shapes and the required high strength values or elongation limits, for example in the
  • Automotive engineering is a good hardenability for the
  • the aluminum strip produced according to the invention after its preparation is subjected to a solution annealing with subsequent heat treatment and in the state T4 a uniform elongation A g of more than 25% in a
  • Condition T ⁇ can be 185 0 C for 20 min
  • the aluminum strip has a uniform elongation A g of more than 25% in the rolling direction, transversely to the rolling direction and diagonally to the rolling direction, a particularly isotropic forming capability can be achieved.
  • the aluminum strips have a thickness of 0.5 mm to 12 mm.
  • Aluminum strips with thicknesses of 0.5 mm to 2 mm are preferably used for body parts, for example in the automotive industry, while aluminum strips with larger thicknesses of 2 to 4.5 mm, for example, in
  • Individual components can also be manufactured in a cold-rolled strip with a thickness of up to 6 mm.
  • aluminum strips with thicknesses of up to 12 mm can be used. These very thick aluminum strips are usually provided only by hot rolling.
  • the aluminum alloy of Alloy-type aluminum tape A ⁇ xxx preferably
  • the above object is according to a third teaching of the present invention by the use of a sheet produced from an aluminum strip according to the invention as a component, chassis or Structural part and sheet in automotive, aircraft or rail vehicle construction, in particular as a component, chassis part, exterior or
  • Inner panel in the automotive industry, preferably as
  • Bodywork component solved. Especially visible
  • Body parts such as hoods, fenders, etc.
  • the outer skin parts of a rail vehicle or aircraft benefit from the high yield strengths RpO, 2 with good
  • FIG. 1 is a schematic ⁇ ffaufdiagramm an embodiment of the A method according to the invention for producing a strip of a MgSi-aluminum alloy comprising the steps of a) producing and homogenizing the rolling ingot, b) hot rolling, c)
  • an aluminum alloy ingot 1 having the following alloy constituents in weight percent is poured: 0.35% ⁇ Mg ⁇ 0.6%,
  • Residual Al and unavoidable impurities up to a total of 0.15%, individually up to a maximum of 0.05%.
  • the rolled ingot thus produced is at a
  • Fig Ib is shown as the rolling ingot 1 in the present embodiment of the invention
  • the ingot 1 has a temperature of 230 to 550 0 C during hot rolling.
  • this Embodiment has after leaving the hot rolling mill 3 and before the penultimate hot rolling pass the hot strip. 4
  • this hot strip temperature of at least 400 0 C, the quenching of the hot strip 4 under
  • the sinker cooler 5 shown only schematically sprayed the hot strip 4 with cooling
  • Embodiment only a temperature of 95 0 C and will then be wound on the take-up reel 6.
  • the hot strip 4 has a maximum temperature of 130 ° C. or a maximum of 100 ° C. directly at the outlet of the last hot rolling pass or optionally in the last two hot rolling passes using the sinker 5 and the work rolls of the hot rolling stand 3 to one
  • the hot strip with a thickness of 3 to 12 mm, preferably 3.5 to 8 mm is wound on the take-up reel 6. As already stated, is the
  • Coiling temperature in the present embodiment less than 95 0 C.
  • no or only a few coarse Mg 2 Si precipitates can now form in the wound hot strip 4.
  • the hot strip 4 has a very favorable for further processing crystal state and can be unwound from the unwinding reel 7, for example, fed to a cold rolling mill 9 and back on a
  • the resulting cold-rolled strip 11 is wound up. Subsequently, it is supplied to a solution annealing and quenching 10, Fig. Id). For this purpose, it is again unwound from the coil 12, solution-annealed in an oven 10 and quenched again wound into a coil 13.
  • the aluminum strip can then be delivered after a cold aging at room temperature in the state T4 with maximum formability.
  • the aluminum strip 11 can be singulated into individual sheets, which after a
  • Chassis applications or components such as brake anchor plates may alternatively be performed piece annealing and the sheets are then quenched.
  • the aluminum strip or the aluminum sheet is brought by hot aging at 100 0 C to 220 0 C to achieve maximum values for the yield strength. For example, a hot aging at 205 0 C / 30 min. Performed.
  • the aluminum strips produced according to the illustrated embodiment for example, after cold rolling a thickness of 0.5 to 4.5 mm. Tape thicknesses of 0.5 to 2 mm are usually for bodywork applications or
  • Forming of the sheets are carried out and still high strengths in the operating condition (T6) of the final product are needed.
  • the aluminum strips contain aluminum and impurities as a residual proportion, individually not more than 0.05% by weight and in total not more than 0.15% by weight.
  • the bands (samples) 409 and 410 were with a
  • the T6 state was achieved by heat aging at 205 ° C. for 30 minutes. It was found that the advantageous Gefuge, which was adjusted by the inventive method in the band 409 and 410, with increased yield strength RpO, 2 and strength Rm an increase in the elongation Aso enabled.
  • This structure leads to the particularly advantageous combination of high elongation At break A 8 o of at least 30% or at least 30% at very high values for the yield strength RpO, 2 of 80 to 140 MPa.
  • the yield strength can increase to over 185 MPa, with the elongation A 80
  • Embodiments of the invention despite the increased elongation values of more than 15%, a very good increase in the yield strength in the heat-aging state T6 at a
  • the elongation at break values A g and A 8 o, the elongation limit values RpO, 2 and the tensile strength values Rm in the following tables were measured according to DIN EN. The measured values could be verified in state T4 by measurements on other strips.
  • the aluminum alloys of bands A and B had the following composition: 0.25% ⁇ Mg ⁇ 0, 6%,
  • the hot strip was wound up to 95 ° C. within the last two hot rolling passes and then cold rolled to a final thickness of 1.0 mm or 3.0 mm.
  • the bands A and B were solution-annealed and after one
  • Aluminum strips were this briefly heated to about 100 0 C and then wound at a temperature of greater than 85 0C, in this case at 88 ° C and aged cold.
  • Table 4 shows the composition of tape 342 which was treated with the additional heat treatment after solution heat treatment and quenching.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metal Rolling (AREA)

Abstract

L'invention porte sur un procédé de fabrication d'une bande en un alliage AlMgSi, suivant lequel on coule une billette de laminage en alliage AlMgSi, on soumet la billette de laminage à une homogénéisation, on lamine à chaud la billette de laminage portée à température de laminage, puis, facultativement, on la lamine à froid jusqu'à son épaisseur finale. L'invention vise à créer un procédé de fabrication d'une bande d'aluminium en un alliage AlMgSi, ainsi qu'une bande d'aluminium qui, pour une résistance mécanique constante, présente un plus grand allongement à la rupture et permet ainsi des taux de déformation plus élevés lors de la fabrication de tôles structurées. A cet effet, la bande laminée à chaud présente, immédiatement en sortie de la dernière passe de laminage, une température maximale de 130°C, de préférence une température maximale de 100°C, la bande laminée à chaud étant enroulée à cette température ou à une température plus basse.
EP10723562.4A 2009-06-30 2010-05-21 Bande AIMgSi pour applications ayant des exigences de déformation élevées Revoked EP2449145B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10723562.4A EP2449145B1 (fr) 2009-06-30 2010-05-21 Bande AIMgSi pour applications ayant des exigences de déformation élevées

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09164221.5A EP2270249B2 (fr) 2009-06-30 2009-06-30 Bande AIMgSi pour applications ayant des exigences de déformation élevées
EP10723562.4A EP2449145B1 (fr) 2009-06-30 2010-05-21 Bande AIMgSi pour applications ayant des exigences de déformation élevées
PCT/EP2010/057071 WO2011000635A1 (fr) 2009-06-30 2010-05-21 Bande en almgsi pour applications à exigences élevées de déformation

Publications (2)

Publication Number Publication Date
EP2449145A1 true EP2449145A1 (fr) 2012-05-09
EP2449145B1 EP2449145B1 (fr) 2019-08-07

Family

ID=40910784

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09164221.5A Active EP2270249B2 (fr) 2009-06-30 2009-06-30 Bande AIMgSi pour applications ayant des exigences de déformation élevées
EP10723562.4A Revoked EP2449145B1 (fr) 2009-06-30 2010-05-21 Bande AIMgSi pour applications ayant des exigences de déformation élevées

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09164221.5A Active EP2270249B2 (fr) 2009-06-30 2009-06-30 Bande AIMgSi pour applications ayant des exigences de déformation élevées

Country Status (9)

Country Link
US (2) US10047422B2 (fr)
EP (2) EP2270249B2 (fr)
JP (1) JP5981842B2 (fr)
KR (1) KR101401060B1 (fr)
CN (1) CN102498229B (fr)
CA (1) CA2766327C (fr)
ES (2) ES2426226T3 (fr)
RU (1) RU2516214C2 (fr)
WO (1) WO2011000635A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011000635A1 (fr) 2009-06-30 2011-01-06 Hydro Aluminium Deutschland Gmbh Bande en almgsi pour applications à exigences élevées de déformation

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EP2570509B1 (fr) * 2011-09-15 2014-02-19 Hydro Aluminium Rolled Products GmbH Procédé de fabrication pour une bande d'aluminium AlMgSi
EP2570257B1 (fr) 2011-09-15 2021-05-12 Hydro Aluminium Rolled Products GmbH Matière première composite en aluminium dotée d'une couche d'alliage centrale AIMgSi
EP2766205A2 (fr) * 2011-10-11 2014-08-20 KSM Castings Group GmbH Pièce coulée
DE102013108127A1 (de) 2012-08-23 2014-02-27 Ksm Castings Group Gmbh Al-Gusslegierung
DE112014000689A5 (de) 2013-02-06 2015-10-15 Ksm Castings Group Gmbh Al-Gusslegierung
FR3008427B1 (fr) * 2013-07-11 2015-08-21 Constellium France Tole en alliage d'aluminium pour structure de caisse automobile
DE102013221710A1 (de) 2013-10-25 2015-04-30 Sms Siemag Aktiengesellschaft Aluminium-Warmbandwalzstraße und Verfahren zum Warmwalzen eines Aluminium-Warmbandes
EP3497256B1 (fr) * 2016-08-15 2020-07-01 Hydro Aluminium Rolled Products GmbH Alliage d'aluminium pour la protection des piétons contre la collision
US11384418B2 (en) 2017-05-11 2022-07-12 Aleris Aluminum Duffel Bvba Method of manufacturing an Al—Si—Mg alloy rolled sheet product with excellent formability
WO2019222177A1 (fr) * 2018-05-15 2019-11-21 Novelis Inc. Produits d'alliage d'aluminium à trempe f* et w et procédés de fabrication associés
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ES2746846T3 (es) 2020-03-09
EP2449145B1 (fr) 2019-08-07
ES2426226T3 (es) 2013-10-22
CA2766327A1 (fr) 2011-01-06
US20120222783A1 (en) 2012-09-06
RU2012102976A (ru) 2013-08-10
EP2270249B1 (fr) 2013-05-29
US10047422B2 (en) 2018-08-14
US10612115B2 (en) 2020-04-07
EP2270249A1 (fr) 2011-01-05
CN102498229A (zh) 2012-06-13
RU2516214C2 (ru) 2014-05-20
CA2766327C (fr) 2016-02-02
KR101401060B1 (ko) 2014-05-29
JP5981842B2 (ja) 2016-08-31
KR20120057607A (ko) 2012-06-05
CN102498229B (zh) 2014-03-12
JP2012531521A (ja) 2012-12-10
US20160068939A1 (en) 2016-03-10
WO2011000635A1 (fr) 2011-01-06
EP2270249B2 (fr) 2020-05-27

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