EP 3464659 B1 20200311 - 6XXX-SERIES ALUMINIUM ALLOY FORGING STOCK MATERIAL AND METHOD OF MANUFACTING THEREOF
Title (en)
6XXX-SERIES ALUMINIUM ALLOY FORGING STOCK MATERIAL AND METHOD OF MANUFACTING THEREOF
Title (de)
6XXX-SERIEN-ALUMINIUMLEGIERUNGSSCHMIEDEROHMATERIAL UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
MATÉRIAU DE STOCKAGE FORGÉ EN ALLIAGE D'ALUMINIUM DE LA SÉRIE 6XXX ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- EP 16172448 A 20160601
- EP 2017063109 W 20170531
Abstract (en)
[origin: WO2017207603A1] The invention relates to hot-rolled semi-finished 6xxx-series aluminium alloy forging stock material having a thickness in the range of 2 mm to 30 mm, and having a composition comprising of, in wt.%, Si 0.65-1.4%, Mg 0.60-0.95%, Mn 0.40-0.80%, Cu 0.04-0.28%, Fe up to 0.5%, Cr up to 0.18%, Zr up to 0.20%, Ti up to 0.15%, Zn up to 0.25%, impurities each <0.05%, total <0.2%, balance aluminium, and wherein it has a substantially unrecrystallized microstructure. The invention relates also to a method of manufacturing such 6xxx-series hot-rolled aluminium alloy forging stock material. Furthermore, the invention relates to a method of forging a shaped product from the 6xxx-series aluminium alloy forging stock material.
IPC 8 full level
C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22F 1/05 (2006.01)
CPC (source: EP US)
C22C 21/02 (2013.01 - EP US); C22C 21/08 (2013.01 - EP US); C22F 1/05 (2013.01 - EP US)
Citation (opposition)
Opponent : C-TEC CONSTELLIUM TECHNOLOGY CENTER
- JP 2006274415 A 20061012 - KOBE STEEL LTD
- EP 2811042 A1 20141210 - KOBE STEEL LTD [JP]
- JP 2003277868 A 20031002 - KOBE STEEL LTD
- JP 2004043907 A 20040212 - KOBE STEEL LTD
- US 2005095167 A1 20050505 - BARTH ANDREAS [DE], et al
- P. SHERSTNEV, I. FLITTA , C. SOMMITSCH, M. HACKSTEINER , T. EBNER: "The effect of the initial rolling temperature on the microstructure évolution during and after hot rolling of AA6082", INT J MATER FORM, 2008, pages 395 - 398, XP055764075
- GAUTHIER PASCAL: "Corrosion behaviour study of the forged AA6082 aluminum alloy from différent feedstock", MÉMOIRE DE MAÎTRISE, 2010, pages iii-xvii,1 - 124, XP055764084
- Y. BIROL ET AL.: "Effect of extrusion press exit temperature and chromium on grain structure of EN AW 6082 alloy forgings", MATERIALS SCIENCE AND TECHNOLOGY, vol. 31, no. 2, 2015, pages 207 - 211, XP055764096
- ANONYMOUS: "BRITISH STANDARD: AEROSPACE SERIES SPECIFICATION FOR Forging Stock and Forgings of Aluminium-Magnesium- Silicon-Manganese Alloy", BRISTISH STANDARDS INSTITUTION, September 1971 (1971-09-01), pages 1 - 3, XP055764103
- ANONYMOUS: "Aluminium et alliages d'aluminium - Produits corroyés destinés à la forge", NORME EUROPÉENNE/ NORME FRANÇAISE NF A50-922, NF EN 603-03, August 2000 (2000-08-01), XP055764110
- J.R. DAVIS DAVIS & ASSOCIATES: "ASM Specialty Handbook® Aluminum and Aluminum Alloys", 1993, ASM INTERNATIONAL, article "Forging", pages: 253 - 255, 2pp, XP055764130
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 2017207603 A1 20171207; CN 109415780 A 20190301; CN 109415780 B 20210223; EP 3464659 A1 20190410; EP 3464659 B1 20200311; EP 3464659 B2 20230712; US 2019136348 A1 20190509
DOCDB simple family (application)
EP 2017063109 W 20170531; CN 201780032491 A 20170531; EP 17725993 A 20170531; US 201716306078 A 20170531