EP 3765647 B1 20230531 - METHOD OF MANUFACTURING AN ALMGSI ALLOY SHEET PRODUCT
Title (en)
METHOD OF MANUFACTURING AN ALMGSI ALLOY SHEET PRODUCT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES BLECHPRODUKTS AUS ALMGSI-LEGIERUNG
Title (fr)
PROCÉDÉ DE FABRICATION D'UN PRODUIT DE FEUILLE D'ALLIAGE ALMGSI
Publication
Application
Priority
- EP 18161929 A 20180315
- EP 2019054047 W 20190219
Abstract (en)
[origin: WO2019174870A1] The invention relates to a method of manufacturing an AlMgSi<u>(Cu)</u>alloy sheet product particularly suitable for use in the production of automotive body parts, the method comprising the steps of (a) providing a rolled aluminium alloy sheet comprising an AA6000-series alloy; (b) solution heat treating the rolled aluminium alloy sheet; (c) quenching said sheet; (d) pre-ageing said sheet by subjecting it to a heat treatment at a pre-ageing temperature of 65°C to 110°C, for a pre-ageing time of 20 to 70 min. and (e) cooling the pre-aged sheet from the pre-ageing temperature at a cooling rate of more than 3°C/h.The invention is also related to an aluminium sheet product produced by this method.
IPC 8 full level
C22F 1/04 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP)
C22C 21/02 (2013.01); C22F 1/04 (2013.01); C22F 1/05 (2013.01)
Citation (opposition)
Opponent : C-TEC CONSTELLIUM TECHNOLOGY CENTER, CONSTELLIUM NEUF-BRISACH, CONSTELLIUM BOWLING GREEN LLC
- US 2015368761 A1 20151224 - SHISHIDO HISAO [JP], et al
- JP H02209457 A 19900820 - KOBE STEEL LTD
- WO 9518244 A1 19950706 - FURUKAWA ELECTRIC CO LTD [JP], et al
- US 2009242088 A1 20091001 - TAKAKI YASUO [JP], et al
- ASTM: "Standard Test Methods for Bend Testing of Material for Ductility", ASTM DESIGNATION E290-97A, 1 December 1996 (1996-12-01), XP093164332
- MICHEL STUCKY: "Traitements thermiques des alliages d’aluminium - Matériels et recommandations", TECHNIQUES DE L'INGÉNIEUR, 10 June 2011 (2011-06-10), XP093164330, Retrieved from the Internet <URL:https://www.techniques-ingenieur.fr/base-documentaire/materiaux-th11/traitements-thermiques-des-aciers-des-alliages-et-des-fontes-42364210/traitements-thermiques-des-alliages-d-aluminium-m1290/>
- ANONYMOUS: "Convection", WIKIPÉDIA, 13 November 2016 (2016-11-13), pages 1 - 5, XP093164331, Retrieved from the Internet <URL:https://web.archive.org/web/20161113132045/https://fr.wikipedia.org/wiki/Convection>
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2019174870 A1 20190919; EP 3765647 A1 20210120; EP 3765647 B1 20230531
DOCDB simple family (application)
EP 2019054047 W 20190219; EP 19705361 A 20190219