EP 3740598 B1 20230628 - ALUMINIUM ALLOY, METHOD OF PRODUCTION OF AN ALUMINIUM-FLATPRODUCT, THE ALUMINIUM-FLATPRODUCT AND ITS USE
Title (en)
ALUMINIUM ALLOY, METHOD OF PRODUCTION OF AN ALUMINIUM-FLATPRODUCT, THE ALUMINIUM-FLATPRODUCT AND ITS USE
Title (de)
ALUMINIUMLEGIERUNG, VERFAHREN ZUR HERSTELLUNG EINES ALUMINIUMFLACHPRODUKTS, ALUMINIUMFLACHPRODUKT UND VERWENDUNG DESSELBEN
Title (fr)
ALLIAGE D'ALUMINIUM, MÉTHODE DE FABRICATION D'UN PRODUIT PLAT D'ALUMINIUM, LE PRODUIT PLAT D'ALUMINIUM ET UTILISATION
Publication
Application
Priority
- EP 18151840 A 20180116
- EP 2019050899 W 20190115
Abstract (en)
[origin: CA3088915A1] The invention relates to an aluminium alloy for superplastic aluminium flat products (46; 56, 56'), wherein the aluminium alloy has the following composition: Si = 0.4 wt. %, Fe = 0.4 wt. %, Cu = 0.1 wt. %, 0.5 wt. % = Mn = 1.0 wt. %, 4.7 wt. % = Mg = 5.5 wt. %, 0.05 wt. % = Cr = 0.25 wt. %, Zn = 0.25 wt. %, Ti = 0.20 wt. %, Na = 2 ppm, individual unavoidable impurities = 0,05 Gew.-%, and total unavoidable impurities = 0,15 Gew.-%, the remainder being aluminium. The invention also relates to a method for producing an aluminium flat product (46; 56, 56'), particularly a superplastic aluminium flat product, in which an aluminium melt (22) is produced from the above-mentioned aluminium alloy, the aluminium melt (22) is cast to form an ingot (24), the ingot (24) is hot-rolled to form a hot strip (40), the hot strip (40) is cold-rolled to form a cold strip (46), and the cold strip (46) is straightened. The invention further relates to an aluminium flat product (46; 56, 56') produced by the method, and to a use thereof.
IPC 8 full level
C22C 21/06 (2006.01); C22C 21/08 (2006.01); C22F 1/047 (2006.01)
CPC (source: EP US)
B21B 1/24 (2013.01 - US); B21D 3/02 (2013.01 - US); C22C 1/026 (2013.01 - US); C22C 21/06 (2013.01 - EP); C22C 21/08 (2013.01 - EP US); C22F 1/047 (2013.01 - EP US)
Citation (examination)
- HECTOR S CAMPBELL: "SUPERIOR STRESS CORROSION RESISTANCE OF WROUGHT ALUMINIUM-MAGNESIUM ALLOY CONTAINING 1% ZINC", THE METALLURGY OF LIGHT ALLOYS, 31 March 1983 (1983-03-31), Conference Loughbourough, GB, pages 82 - 100, XP055648040
- YANG H S ET AL: "On the fabrication aspect of commercial superplastic 5083 aluminum alloy sheets", no. CONF-950201, 31 December 1995 (1995-12-31), pages 17 - 24, XP009517482, ISBN: 978-0-87339-300-3, Retrieved from the Internet <URL:https://www.osti.gov/biblio/194181-fabrication-aspect-commercial-superplastic-aluminum-alloy-sheets>
- LAVENDER C A ET AL: "Development of superplasticity in 5083 aluminum with additions of Mn and Zr", vol. 170/172, no. PNL-SA-23032; CONF-9405193-3, 1 May 1994 (1994-05-01), pages 279 - 286, XP009517481, ISBN: 978-0-87849-685-3, Retrieved from the Internet <URL:https://www.osti.gov/biblio/10177422-development-superplasticity-aluminum-additions-mn-zr> DOI: 10.4028/WWW.SCIENTIFIC.NET/MSF.170-172.279
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)
EP 3511433 A1 20190717; CA 3088915 A1 20190725; CA 3088915 C 20210803; EP 3740598 A1 20201125; EP 3740598 B1 20230628; EP 3740598 C0 20230628; US 2020325560 A1 20201015; WO 2019141666 A1 20190725
DOCDB simple family (application)
EP 18151840 A 20180116; CA 3088915 A 20190115; EP 19701587 A 20190115; EP 2019050899 W 20190115; US 202016911628 A 20200625