EP1544316B1 - Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung - Google Patents

Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung Download PDF

Info

Publication number
EP1544316B1
EP1544316B1 EP04356197A EP04356197A EP1544316B1 EP 1544316 B1 EP1544316 B1 EP 1544316B1 EP 04356197 A EP04356197 A EP 04356197A EP 04356197 A EP04356197 A EP 04356197A EP 1544316 B1 EP1544316 B1 EP 1544316B1
Authority
EP
European Patent Office
Prior art keywords
plate
alloy
sheet
low
mpa
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.)
Expired - Lifetime
Application number
EP04356197A
Other languages
English (en)
French (fr)
Other versions
EP1544316A2 (de
EP1544316A3 (de
Inventor
David Dumont
Vic Dangerfield
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.)
Constellium Issoire SAS
Constellium Rolled Products Ravenswood LLC
Original Assignee
Constellium France SAS
Constellium Rolled Products Ravenswood LLC
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
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34520277&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1544316(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Constellium France SAS, Constellium Rolled Products Ravenswood LLC filed Critical Constellium France SAS
Publication of EP1544316A2 publication Critical patent/EP1544316A2/de
Publication of EP1544316A3 publication Critical patent/EP1544316A3/de
Application granted granted Critical
Publication of EP1544316B1 publication Critical patent/EP1544316B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • C22C21/10—Alloys based on aluminium with zinc as the next major constituent
    • 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
    • C22F1/053—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 zinc as the next major constituent

Definitions

  • the present invention relates to sheets of Al-Zn-Cu-Mg type aluminum alloys intended for the manufacture of structural elements used in the aeronautical or space industry.
  • the EP 0 876 514 B1 discloses a thick product of Al-Zn-Cu-Mg alloy with a volume fraction of recrystallized grains of less than 35% between quarter and mid-thickness.
  • RPFF fatigue cracks
  • the present invention addresses the problem of how to improve the fatigue crack propagation resistance in a thick Al-Zn-Cu-Mg alloy sheet.
  • a first object of the present invention is a thick sheet of Al-Zn-Cu-Mg alloy, comprising from 0.05 to 0.09% by weight of Zr, said sheet having a recrystallization greater than 35% to one-quarter of the thickness.
  • a second object is a method for manufacturing a thick sheet of Al-Zn-Cu-Mg alloy, comprising from 0.05 to 0.09% by weight of Zr, said process comprising the hot rolling of a blank of said sheet at a temperature which is less than 420 ° C. This method makes it possible to obtain a sheet having a degree of recrystallization greater than 35% at a quarter of the thickness.
  • the figure 1 shows the dimensions of RPFF specimens according to an embodiment of the present invention.
  • the figure 2 shows the results of fatigue crack propagation (PFF) tests on a reference plate (No. 856385) according to an embodiment of the present invention.
  • the figure 3 is a scanning electron microscope (SEM) characterization of fracture surfaces of a reference material.
  • the figure 4 shows the results of PFF tests on a rolled sheet with a lower exit temperature.
  • the figure 5 shows test results of PFF on a sheet with a lower Zr content.
  • the figure 6 shows a comparison of the crack path near the threshold for reference materials (a) and low Zr (b) according to one embodiment.
  • the figure 7 is a schematic representation of the RPFF differences between reference materials and low Zr content according to one embodiment.
  • the fatigue strength is determined by a test according to ASTM E 466, and the fatigue crack growth rate (so-called da / dn test) according to ASTM E 647.
  • the curve R is determined according to the ASTM 561 standard. From the curve R, the critical stress intensity factor K c is calculated, ie the intensity factor which causes the instability of the crack.
  • the stress intensity factor K CO is also calculated by assigning to the critical load the initial length of the crack at the beginning of the monotonic loading. These two values are calculated for a specimen of the desired shape. K app designates the K CO corresponding to the specimen used to make the R curve test.
  • structural element or “structural element” of a mechanical construction a mechanical part whose failure is likely to endanger the safety of said construction, its users, its users or others.
  • these structural elements include the elements that make up the fuselage (such as fuselage skin (fuselage skin in English), stiffeners or stringers, bulkheads, fuselage (circumferential frames), wings (such as wing skin), stiffeners (stiffeners), ribs (ribs) and spars) and empennage including horizontal stabilizers and vertical stabilizers (horizontal or vertical stabilizers), as well as floor beams, seat tracks and doors.
  • the Zr content is from 0.05 to 0.07%.
  • Such an alloy can be cast in the form of a rolling plate, and can be converted according to known methods into thick plates. These processes always involve at least one hot rolling pass.
  • the sheet according to the invention is a strong plate (thick sheet), because the technical effect of the invention will not noticeable only for a sheet that is not completely recrystallized, whereas a thin sheet may be.
  • its thickness is at least 15 mm, and preferably at least 20 mm; its thickness can reach or exceed 100 mm.
  • the sheet according to the invention has a recrystallization rate at a quarter of the thickness (E / 4) greater than 35%, and preferably greater than 50%, but must not be completely recrystallized. As such, it is preferred that the recrystallization rate at E / 4 does not exceed 90%.
  • a sheet according to the invention in alloy according to one of the preferred embodiments (that is to say in alloy AA7040 or comprising from 5.8 to 6.8% of Zn, from 1.5 to 2.5% of Cu, from 1.5 to 2.5% Mg, from 0.05 to 0.09% of Zr) has a toughness K IC (LT) > 30 MPa ⁇ m, and preferentially in addition to a toughness K IC (TL ) > 25 MPa ⁇ m, and even more preferably in addition to these two previous values a toughness K IC (ST) > 25 MPa ⁇ m.
  • the sheet according to the invention may be manufactured by a process which comprises hot rolling a blank of said sheet at a temperature which is less than 420 ° C. Then, this sheet can be subjected to a type T7651 treatment; this treatment includes income.
  • the recrystallization rate itself has a weak effect in the regions near the threshold; the nominal curves are slightly different because of a closure effect induced by the roughness, the path of the crack being more tortuous.
  • the recrystallized grains of the low Zr material are probably larger. It is suggested to cold roll this material to obtain a comparable microstructure in terms of grain size and then test its resistance to fatigue crack propagation.
  • the sheets according to the invention can be used, particularly in the form of thick plates, for the manufacture of structural elements for aircraft construction.
  • the present invention is illustrated by the following examples. They do not limit the present invention.
  • the tests were performed with a cyclic load frequency of 35 Hz and a load ratio of 0.1.
  • the length of the fatigue cracks was continuously monitored using a compliance technique. It was also evaluated by optical observation of the surface of the test piece after polishing.
  • the fatigue crack propagation threshold stress intensity range, ⁇ K th is arbitrarily defined as the stress intensity coefficient range, ⁇ K, which corresponds to a fatigue crack propagation rate, da /. dN, 10 -10 m / cycle.
  • the figure 2 shows the fatigue crack propagation in the air through the reference material (% low recryst).
  • (b) Influence of sample orientation (LT vs. TL), curves labeled "effective" take into account the correction of the closing effect. All tests were performed with a R load ratio of 0.1.
  • the figure 4 shows the fatigue crack propagation (measured in air) through a material rolled at a low rolling temperature (LT) in the LT direction. This was compared to the reference material (low recrystallization). All tests were performed with a R load ratio of 0.1.
  • This difference may be due to a roughness-induced closure effect in the ⁇ K range of 1 , 2 at 8 ⁇ M ⁇ P ⁇ at ⁇ m .
  • the path of the crack is more tortuous for the material with low Zr content (see figure 6 ).
  • the fracture surfaces are mainly transgranular, as for the other two materials, and have a large amount of secondary cracks.
  • the figure 5 shows the fatigue crack propagation in the air through the low Zr (high recryst) material in the LT direction. Comparison with reference material (% low recryst). All tests were performed with a R load ratio of 0.1.
  • the figure 6 shows a comparison of the crack path near threshold for reference materials (a) and low Zr (b). Samples tested in LT orientation, at E / 4.
  • the figure 7 is a schematization of differences of RPFF between reference materials and low Zr content. (Right curve: low Zr material. Left curve: reference material).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Metal Rolling (AREA)
  • Conductive Materials (AREA)
  • Heat Treatment Of Steel (AREA)
  • Cookers (AREA)
  • Laminated Bodies (AREA)

Claims (10)

  1. Blech mit einer Dicke größer als 6 mm aus einer Al-Zn-Cu-Mg-Legierung enthaltend 0,05 bis 0,09 Gew.-% Zr, welches Blech in Vierteldicke einen Rekristallisationsgrad größer als 35 % aufweist, wobei das Blech aus der Legierung AA7040 besteht.
  2. Blech nach Anspruch 1, bei dem Zr in einem Mengenbereich zwischen 0,05 und 0,07 Gew.-% vorliegt.
  3. Blech nach irgendeinem der Ansprüche 1 bis 2, welches in Vierteldicke einen Rekristallisationsgrad größer als 50 % aufweist.
  4. Blech nach irgendeinem der Ansprüche 1 bis 3, bei dem die Ausbreitungsgeschwindigkeit von Ermüdungsrissen bei einem mit R = 0,1 in LT-Richtung an der Stelle E/4 durchgeführten Versuch niedriger ist als 10-4 mm/Zyklus bei ΔK = 10 ⁢ MPa ⁢ m .
    Figure imgb0011
  5. Blech nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass KIC(L-T) > 30 MPa√m ist.
  6. Blech nach Anspruch 5, dadurch gekennzeichnet, dass KIC(T-L) > 25 MPa√m ist, und vorzugsweise zudem dadurch gekennzeichnet, dass KIC(S-L) > 25 MPa√m ist
  7. Blech nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass seine Dicke mindestens 15 mm beträgt.
  8. Verfahren zur Herstellung eines Blechs nach irgendeinem der Ansprüche 1 bis 7, umfassend das Warmwalzen eines Vormaterials für das Blech bei einer Temperatur, die niedriger ist als 420 °C.
  9. Verfahren nach Anspruch 8, bei dem das Blech einer Warmauslagerungsbehandlung vom Typ T7651 unterzogen wird.
  10. Verwendung eines Blechs nach irgendeinem der Ansprüche 1 bis 7 oder eines aus dem Verfahren nach Anspruch 8 oder 9 hervorgegangenen Blechs für die Herstellung von Strukturelementen für den Flugzeugbau.
EP04356197A 2003-12-16 2004-12-15 Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung Expired - Lifetime EP1544316B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52959303P 2003-12-16 2003-12-16
US529593P 2003-12-16

Publications (3)

Publication Number Publication Date
EP1544316A2 EP1544316A2 (de) 2005-06-22
EP1544316A3 EP1544316A3 (de) 2007-05-09
EP1544316B1 true EP1544316B1 (de) 2012-03-07

Family

ID=34520277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04356197A Expired - Lifetime EP1544316B1 (de) 2003-12-16 2004-12-15 Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung

Country Status (4)

Country Link
US (1) US7520945B2 (de)
EP (1) EP1544316B1 (de)
AT (1) ATE548476T1 (de)
ES (1) ES2383528T3 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1544316B1 (de) 2003-12-16 2012-03-07 Constellium France Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung
DE502005001724D1 (de) 2005-01-19 2007-11-29 Fuchs Kg Otto Abschreckunempfindliche Aluminiumlegierung sowie Verfahren zum Herstellen eines Halbzeuges aus dieser Legierung
BRPI0606957B1 (pt) * 2005-02-10 2016-09-13 Alcan Rhenalu produto trabalhado de liga à base de alumínio laminado ou forjado e processo para a sua produção
US9163304B2 (en) 2010-04-20 2015-10-20 Alcoa Inc. High strength forged aluminum alloy products
CA3032261A1 (en) 2016-08-26 2018-03-01 Shape Corp. Warm forming process and apparatus for transverse bending of an extruded aluminum beam to warm form a vehicle structural component
CN110114498A (zh) 2016-10-24 2019-08-09 形状集团 用于生产车辆零件的多阶段铝合金形成与热加工方法
KR101974913B1 (ko) * 2017-04-13 2019-05-07 한국기계연구원 알루미늄-아연-구리(Al-Zn-Cu) 합금 및 이의 제조방법
EP3670690A1 (de) 2018-12-20 2020-06-24 Constellium Issoire Al-zn-cu-mg-legierungen und deren herstellungsverfahren
CN113105115B (zh) * 2021-04-14 2022-02-18 东北大学 一种具有自修复功能的耐高温搪瓷基复合涂层及其制备方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305763A (en) * 1978-09-29 1981-12-15 The Boeing Company Method of producing an aluminum alloy product
CA1173277A (en) * 1979-09-29 1984-08-28 Yoshio Baba Aircraft stringer material and method for producing the same
US5277719A (en) * 1991-04-18 1994-01-11 Aluminum Company Of America Aluminum alloy thick plate product and method
US6027582A (en) * 1996-01-25 2000-02-22 Pechiney Rhenalu Thick alZnMgCu alloy products with improved properties
FR2744136B1 (fr) * 1996-01-25 1998-03-06 Pechiney Rhenalu Produits epais en alliage alznmgcu a proprietes ameliorees
US7135077B2 (en) * 2000-05-24 2006-11-14 Pechiney Rhenalu Thick products made of heat-treatable aluminum alloy with improved toughness and process for manufacturing these products
IL156386A0 (en) * 2000-12-21 2004-01-04 Alcoa Inc Aluminum alloy products and artificial aging method
EP1544316B1 (de) 2003-12-16 2012-03-07 Constellium France Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung

Also Published As

Publication number Publication date
US7520945B2 (en) 2009-04-21
EP1544316A2 (de) 2005-06-22
ATE548476T1 (de) 2012-03-15
EP1544316A3 (de) 2007-05-09
ES2383528T3 (es) 2012-06-21
US20050167016A1 (en) 2005-08-04

Similar Documents

Publication Publication Date Title
EP2235224B1 (de) HERSTELLUNGSVERFAHREN EINES Al-Li-GEWALZTEN PRODUKTS FÜR ANWENDUNGEN IN DER LUFTFAHRT
EP2655680B1 (de) Aluminium-kupfer-lithium-legierung mit verbesserter druckfestigkeit und beständigkeit
EP2710163B1 (de) Aluminium-magnesium-lithiumlegierung mit erhöhter zähigkeit
EP2449142B1 (de) Aluminium-kupfer-lithium-legierung mit verbesserten mechanische beständigkeit und zähigkeit
EP1492895B1 (de) Produkte aus al-zn-mg-cu-legierung
EP1966402B1 (de) Blech aus einer hochfesten aluminiumlegierung mit kupfer und lithium für einen flugzeugrumpf
FR2907796A1 (fr) Produits en alliage d'aluminium de la serie aa7000 et leur procede de fabrication
EP3201370B1 (de) Knetprodukt aus einer aluminium magnesium lithium legierung
EP1544315B1 (de) Knetprodukt in Form eines gewalzten Bleches und Strukturbauteil für Flugzeug aus Al-Zn-Cu-Mg-Legierung
CA2798480C (fr) Alliage aluminium-cuivre-lithium pour element d'intrados
FR2853667A1 (fr) Alliage al-an-mg-cu ameliore en ce qui concerne ses proprietes combinees de tolerance aux dommages et de resistance mecanique
FR2907466A1 (fr) Produits en alliage d'aluminium de la serie aa7000 et leur procede de fabrication
EP3728667B1 (de) Verbessertes verfahren zur herstellung von blechen aus einer aluminium-kupfer-lithium-legierung für die herstellung von flugzeugrümpfen und entsprechendem blech
EP3526358B1 (de) Dünne bleche aus aluminium-magnesium-scandium-legierung für anwendungen in der luft- und raumfahrt
EP2981631B1 (de) Bleche aus aluminium-kupfer-lithium-legierung zur herstellung von flugzeugrümpfen
EP1644546B1 (de) Verwendung von rohren aus al/zn/mg/cu-legierungen mit verbessertem kompromiss zwischen statischen mechanischen eigenschaften und schadenstoleranz
EP3052669B1 (de) Flügelunterseiten-folienmaterial mit verbesserten schadenstoleranzeigenschaften
EP1809779B1 (de) Produkte aus hochfester aluminiumlegierung und herstellungsverfahren dafür
EP3635146B2 (de) Aluminiumlegierung mit lithium mit verbesserten ermüdungseigenschaften
EP3411508B1 (de) Dicke bleche aus al- cu - li legierung mit verbesserten ermüdungseigenschaften
EP1544316A2 (de) Dickes Bech aus Al-Zn-Cu-Mg Zirkonarmen rekristallisierten Legierung
EP3788178B1 (de) Aluminium-kupfer-lithium-legierung mit verbesserter kompressionsfestigkeit und erhöhter beständigkeit
EP3610047B1 (de) Aluminium-kupfer-lithium-legierungsprodukte
FR3026410B1 (fr) Produit corroye en alliage aluminium magnesium lithium

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

RIC1 Information provided on ipc code assigned before grant

Ipc: C22F 1/053 20060101ALI20070405BHEP

Ipc: C22C 21/10 20060101AFI20050406BHEP

17P Request for examination filed

Effective date: 20070926

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCAN RHENALU

Owner name: PECHINEY ROLLED PRODUCTS

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCAN RHENALU

Owner name: ALCAN ROLLED PRODUCTS - RAVENSWOOD, LLC

17Q First examination report despatched

Effective date: 20101223

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAC Information related to communication of intention to grant a patent modified

Free format text: ORIGINAL CODE: EPIDOSCIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCAN RHENALU

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CONSTELLIUM FRANCE

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004036790

Country of ref document: DE

Owner name: CONSTELLIUM ISSOIRE, FR

Free format text: FORMER OWNERS: PECHINEY RHENALU, PARIS, FR; PECHINEY ROLLED PRODUCTS, RAVENSWOOD, W.VA., US

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004036790

Country of ref document: DE

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, R, US

Free format text: FORMER OWNERS: PECHINEY RHENALU, PARIS, FR; PECHINEY ROLLED PRODUCTS, RAVENSWOOD, W.VA., US

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 548476

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004036790

Country of ref document: DE

Effective date: 20120503

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: NOVAGRAAF INTERNATIONAL SA

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2383528

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20120621

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20120307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120608

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 548476

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120709

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: ALERIS ROLLED PRODUCTS GERMANY GMBH

Effective date: 20121207

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 602004036790

Country of ref document: DE

Effective date: 20121207

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

BERE Be: lapsed

Owner name: CONSTELLIUM FRANCE

Effective date: 20121231

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC

Effective date: 20121231

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120607

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121231

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121215

PLBP Opposition withdrawn

Free format text: ORIGINAL CODE: 0009264

PLBD Termination of opposition procedure: decision despatched

Free format text: ORIGINAL CODE: EPIDOSNOPC1

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041215

PLBM Termination of opposition procedure: date of legal effect published

Free format text: ORIGINAL CODE: 0009276

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION PROCEDURE CLOSED

27C Opposition proceedings terminated

Effective date: 20140801

REG Reference to a national code

Ref country code: FR

Ref legal event code: CA

Effective date: 20150910

Ref country code: FR

Ref legal event code: CD

Owner name: CONSTELLIUM ISSOIRE, FR

Effective date: 20150910

Ref country code: FR

Ref legal event code: CD

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, US

Effective date: 20150910

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, FR

Free format text: FORMER OWNER: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, FR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004036790

Country of ref document: DE

Representative=s name: BEETZ & PARTNER MBB PATENT- UND RECHTSANWAELTE, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004036790

Country of ref document: DE

Representative=s name: BEETZ & PARTNER MBB PATENTANWAELTE, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004036790

Country of ref document: DE

Owner name: CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, R, US

Free format text: FORMER OWNERS: CONSTELLIUM FRANCE, PARIS, FR; CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, RAVENSWOOD, W.VA., US

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004036790

Country of ref document: DE

Owner name: CONSTELLIUM ISSOIRE, FR

Free format text: FORMER OWNERS: CONSTELLIUM FRANCE, PARIS, FR; CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD, LLC, RAVENSWOOD, W.VA., US

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: CONSTELLIUM ISSOIRE

Effective date: 20161010

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151215

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151215

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20170710

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20191219

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20200102

Year of fee payment: 16

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220221

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201215

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231227

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231227

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231229

Year of fee payment: 20

Ref country code: CH

Payment date: 20240102

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 602004036790

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20241214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20241214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20241214