EP 3827109 A1 20210602 - METHOD OF MANUFACTURING AN AL-MG-MN ALLOY PLATE PRODUCT
Title (en)
METHOD OF MANUFACTURING AN AL-MG-MN ALLOY PLATE PRODUCT
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES AL-MG-MN-LEGIERUNGSPLATTENPRODUKTS
Title (fr)
PROCÉDÉ DE FABRICATION D'UN PRODUIT DE TYPE TÔLE EN ALLIAGE D'AL-MG-MN
Publication
Application
Priority
- EP 18173226 A 20180518
- EP 2019061681 W 20190507
Abstract (en)
[origin: EP3569721A1] The invention relates to a method of manufacturing a rolled Al-Mg-Mn alloy plate product comprising the steps of: (a) providing a rolling feedstock material of an Al-Mg-Mn alloy having a composition comprising of, in wt.%, Mg 4.8-6.0%, Mn 0.3-1.25%, Zn up to 0.9%, Fe up to 0.4%, Si up to 0.3%, Cu up to 0.2%, Cr up to 0.25%, Zr up to 0.25%, Ti up to 0.25%, unavoidable impurities and balance aluminium; (b) heating the rolling feedstock to a temperature in a range of 480-550°C; (c) hot-rolling of the heated rolling feedstock to a hot-rolled plate having a final gauge in a range of 3-15 mm, and wherein the hot-mill entry temperature is in a range of 400-550°C, and the hot-mill exit temperature is in a range of 130-285°C; and wherein the hot rolling of the rolling feedstock to final gauge is without cold rolling the rolling feedstock prior to the final gauge; (d) annealing of the hot-rolled plate at final gauge at an annealing temperature in a range of 300-550°C; and (e) cooling to ambient temperature.
IPC 8 full level
C22C 21/06 (2006.01)
CPC (source: EP)
C22C 21/06 (2013.01)
Citation (search report)
See references of WO 2019219453A1
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
DOCDB simple family (publication)
EP 3569721 A1 20191120; EP 3569721 B1 20200513; EP 3827109 A1 20210602; EP 3827109 B1 20221005; WO 2019219453 A1 20191121
DOCDB simple family (application)
EP 18173226 A 20180518; EP 19722128 A 20190507; EP 2019061681 W 20190507