EP 4251779 A1 20231004 - THIN METAL SHEET MADE FROM ALUMINIUM ALLOY WITH HIGH DUCTILITY
Title (en)
THIN METAL SHEET MADE FROM ALUMINIUM ALLOY WITH HIGH DUCTILITY
Title (de)
DÜNNES METALLBLECH AUS EINER ALUMINIUMLEGIERUNG MIT HOHER DUKTILITÄT
Title (fr)
TOLE MINCE EN ALLIAGE D'ALUMINIUM A GRANDE DUCTILITE
Publication
Application
Priority
- FR 2012300 A 20201127
- EP 2021082244 W 20211119
Abstract (en)
[origin: WO2022112110A1] The invention relates to thin metal sheets with a substantially recrystallised microstructure, having a composition, in % by weight, of Mg: 0.65 - 0.85, Fe: 0.10 – 0.20, Si: 0.05 - 0.09, Mn: ≤ 0.03, Cu: ≤ 0.05, Cr: ≤ 0.02, Zn: <0.10, Ti: ≤ 0,03, other elements or impurities < 0.05 each and < 0.15 in total, the balance being aluminium. The method for manufacturing the products according to the invention comprises casting an alloy with a composition according to the invention in the form of a rolling plate, reheating the plate, hot-rolling, cold-rolling and annealing. The thin metal sheets according to the invention are particularly used to produce workpieces which have a complex shape and which are shaped in three spatial dimensions, in particular by stamping.
IPC 8 full level
C22C 21/08 (2006.01); C22F 1/047 (2006.01)
CPC (source: EP)
C22C 21/08 (2013.01); C22F 1/047 (2013.01)
Citation (search report)
See references of WO 2022112110A1
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
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022112110 A1 20220602; EP 4251779 A1 20231004; FR 3116835 A1 20220603; FR 3116835 B1 20230414
DOCDB simple family (application)
EP 2021082244 W 20211119; EP 21806772 A 20211119; FR 2012300 A 20201127