Global Patent Index - EP 1045043 A1

EP 1045043 A1 2000-10-18 - Method of manufacturing shaped articles of a 2024 type aluminium alloy

Title (en)

Method of manufacturing shaped articles of a 2024 type aluminium alloy

Title (de)

Verfahren zur Herstellung von Formteilen aus Aluminiumlegierung vom Typ 2024

Title (fr)

Procédé de fabrication de pièces de forme en alliage d' aluminium type 2024

Publication

EP 1045043 A1 (FR)

Application

EP 00420071 A

Priority

FR 9904685 A

Abstract (en)

Highly deformed AlCuMg alloy sheet part production, by subjecting hot rolled sheets to forming before and/or after solution annealing and quenching, is new. Highly deformed AlCuMg alloy parts are produced by: (a) casting a slab containing (by wt.) 3.8-4.5% Cu, 1.2-1.5% Mg, 0.3-0.5% Mn, less than 0.25% Si, less than 0.20% Fe, less 0.20% Zn, less than 0.10% Cr, less than 0.10% Zr and less than 0.10% Ti; (b) optionally homogenizing at 460-510 (preferably 470-500) degrees C for 2-12 (preferably 3-6) hr.; (c) hot rolling with a start temperature of 430-470 (preferably 440-460) degrees C; (d) optionally cold rolling the strip; (e) optionally annealing at 350-450 degrees C; (f) cutting into sheets; and (g) forming by e.g. stretch forming, deep drawing, spinning and/or bending before and/or after solution annealing at 480-50 degrees C for 5 min. to 1 hr. and quenching.

Abstract (fr)

L'invention concerne un procédé de fabrication de pièces fortement déformées en alliage AlCuMg comportant les étapes suivantes: a) coulée d'une plaque de composition (% en poids): Cu: 3,8 - 4,5Mg: 1,2 - 1,5 Mn: 0,3 - 0,5Si < 0,25Fe < 0,20Zn < 0,20Cr < 0,10 Zr < 0,10Ti < 0,10 , b) éventuellement homogénéisation à une température comprise entre 460 et 510°C entre 2 et 12 h, et préférentiellement à une température comprise entre 470 et 500 °C pour une durée entre 3 et 6 h, c) laminage à chaud avec une température d'entrée comprise entre 430 et 470°C, et de préférence comprise entre 440 et 460°C, d) découpe des tôles, e) mise en forme par un ou plusieurs procédés tels que le roulage, l'étirage-formage, l'emboutissage, le fluotournage ou le pliage, f) mise en solution entre 480 et 500°C, d'une durée comprise entre 5 mn et 1 h, g) trempe, la mise en forme pouvant intervenir avant ou après la mise en solution et la trempe. L'invention s'applique notamment à la fabrication de panneaux de fuselage d'avions.

IPC 1-7 (main, further and additional classification)

C22C 21/16; C22F 1/057

IPC 8 full level (invention and additional information)

B21B 3/00 (2006.01); C22C 21/12 (2006.01); C22C 21/16 (2006.01); C22F 1/00 (2006.01); C22F 1/057 (2006.01)

CPC (invention and additional information)

C22F 1/057 (2013.01); C22C 21/16 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1045043 A1 20001018; EP 1045043 B1 20050518; BR 0001563 A 20001031; DE 00420071 T1 20040422; DE 60020188 D1 20050623; DE 60020188 T2 20060112; FR 2792001 A1 20001013; FR 2792001 B1 20010518; GB 0008506 D0 20000524; GB 2352453 A 20010131; JP 2000328211 A 20001128; US 2003140990 A1 20030731

INPADOC legal status


2017-07-31 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20170427

- Year of fee payment: 18

2017-07-31 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Payment date: 20170426

- Year of fee payment: 18

2017-07-31 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Payment date: 20170427

- Year of fee payment: 18

2017-04-26 [REG FR PLFP] FEE PAYMENT

- Year of fee payment: 18

2016-05-11 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: CONSTELLIUM ISSOIRE, FR

- Free text: FORMER OWNER: CONSTELLIUM FRANCE, PARIS, FR

- Document: DE 60020188

2016-05-11 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

- Representative's name: BEETZ & PARTNER MBB PATENTANWAELTE, DE

2016-05-11 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

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

2016-04-25 [REG FR PLFP] FEE PAYMENT

- Year of fee payment: 17

2015-10-16 [REG FR CA] CHANGE OF ADDRESS

- Effective date: 20150915

2015-10-16 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

- Owner name: CONSTELLIUM ISSOIRE, FR

- Effective date: 20150915

2015-04-17 [REG FR PLFP] FEE PAYMENT

- Year of fee payment: 16

2012-08-16 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: CONSTELLIUM FRANCE, FR

- Free text: FORMER OWNER: PECHINEY RHENALU, PARIS, FR

- Document: DE 60020188

- Effective date: 20120622

2012-08-16 [REG DE R081] CHANGE OF APPLICANT/PATENTEE

- Owner name: CONSTELLIUM ISSOIRE, FR

- Free text: FORMER OWNER: PECHINEY RHENALU, PARIS, FR

- Document: DE 60020188

- Effective date: 20120622

2012-08-16 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

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

- Effective date: 20120622

2012-08-16 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

- Representative's name: BEETZ & PARTNER MBB, DE

- Effective date: 20120622

2012-08-16 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

- Representative's name: BEETZ & PARTNER MBB PATENTANWAELTE, DE

- Effective date: 20120622

2012-08-16 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

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

- Effective date: 20120622

2012-06-22 [REG DE R082] CHANGE OF REPRESENTATIVE

- Document: DE 60020188

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

2011-12-23 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

- Owner name: CONSTELLIUM FRANCE, FR

- Effective date: 20111123

2011-03-16 [27O] OPPOSITION REJECTED

- Effective date: 20101014

2007-10-03 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: ALCAN RHENALU

2007-03-21 [R26] OPPOSITION FILED (CORRECTION)

- Opponent name: CORUS ALUMINIUM WALZPRODUKTE GMBH

- Effective date: 20060217

2007-03-21 [R26] OPPOSITION FILED (CORRECTION)

- Opponent name: AIRBUS DEUTSCHLAND GMBH

- Effective date: 20060220

2006-06-16 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

2006-04-19 [26] OPPOSITION FILED

- Opponent name: CORUS ALUMINIUM WALZPRODUKTE GMBH

- Effective date: 20060217

2006-04-19 [26] OPPOSITION FILED

- Opponent name: AIRBUS DEUTSCHLAND GMBH

- Effective date: 20060220

2006-04-12 [26] OPPOSITION FILED

- Opponent name: CORUS ALUMINIUM WALZPRODUKTE GMBH

- Effective date: 20060217

2005-09-14 [GBT] GB: TRANSLATION OF EP PATENT FILED (GB SECTION 77(6)(A)/1977)

- Effective date: 20050824

2005-06-23 [REF] CORRESPONDS TO:

- Document: DE 60020188 P 20050623

2005-05-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FR GB

2005-05-18 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2004-04-22 [DET] DE: TRANSLATION OF PATENT CLAIMS

2004-01-28 [GBC] GB: TRANSLATION OF CLAIMS FILED (GB SECTION 78(7)/1977)

2003-12-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031031

2001-07-04 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR GB

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010120

2000-10-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB

2000-10-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI