EP 2836620 B1 20190327 - ALLIAGE ALUMINIUM CUIVRE LITHIUM À RÉSISTANCE AU CHOC AMÉLIORÉE
Title (en)
ALLIAGE ALUMINIUM CUIVRE LITHIUM À RÉSISTANCE AU CHOC AMÉLIORÉE
Title (de)
ALUMINIUM-KUPFER-LITHIUM-LEGIERUNG MIT VERBESSERTER SCHLAGZÄHIGKEIT
Title (fr)
ALLIAGE ALUMINIUM CUIVRE LITHIUM À RÉSISTANCE AU CHOC AMÉLIORÉE
Publication
Application
Priority
- FR 1201063 A 20120411
- US 201261622774 P 20120411
- FR 2013000096 W 20130410
Abstract (en)
[origin: US2013269840A1] The invention relates to an extruded product made of an alloy containing aluminum comprising 4.2 wt % to 4.8 wt % of Cu, 0.9 wt % to 1.1 wt % of Li, 0.15 wt % to 0.25 wt % of Ag, 0.2 wt % to 0.6 wt % of Mg, 0.07 wt % to 0.15 wt % of Zr, 0.2 wt % to 0.6 wt % of Mn, 0.01 wt % to 0.15 wt % of Ti, a quantity of Zn less than 0.2 wt %, a quantity of Fe and Si less than or equal to 0.1 wt % each, and unavoidable impurities with a content less than or equal to 0.05 wt % each and 0.15 wt % in total. The profiles according to the invention are particularly useful as fuselage stiffeners or stringers, circumferential frames, wing stiffeners, floor beams or profiles, or seat tracks, notably owing to their improved properties in relation to those of known products, in particular in terms of energy absorption during an impact, static mechanical strength and corrosion resistance properties and their low density.
IPC 8 full level
C22C 21/12 (2006.01); B21C 29/00 (2006.01); C22C 21/16 (2006.01); C22C 23/00 (2006.01); C22F 1/057 (2006.01)
CPC (source: EP US)
B21C 23/002 (2013.01 - EP US); B21C 23/142 (2013.01 - EP US); B21C 29/003 (2013.01 - EP US); B21C 35/023 (2013.01 - EP US); C22C 21/12 (2013.01 - EP US); C22C 21/16 (2013.01 - EP US); C22F 1/057 (2013.01 - EP US); Y10T 428/12 (2015.01 - EP US)
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)
US 2013269840 A1 20131017; US 9945010 B2 20180417; BR 112014025110 B1 20190424; CA 2869733 A1 20131017; CA 2869733 C 20210720; CN 104220616 A 20141217; CN 104220616 B 20171215; DE 13722480 T1 20150625; EP 2836620 A1 20150218; EP 2836620 B1 20190327; FR 2989387 A1 20131018; FR 2989387 B1 20141107; WO 2013153292 A1 20131017
DOCDB simple family (application)
US 201313802280 A 20130313; BR 112014025110 A 20130410; CA 2869733 A 20130410; CN 201380019554 A 20130410; DE 13722480 T 20130410; EP 13722480 A 20130410; FR 1201063 A 20120411; FR 2013000096 W 20130410