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(11)

EP 4 185 421 A1

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(43) Date of publication: 31.05.2023 Bulletin 2023/22 (21) Application number: 21755274.4 (22) Date of filing: 23.07.2021

(51) International Patent Classification (IPC):  B22D 11/049(2006.01) B22D 11/18(2006.01) B22D 11/16(2006.01) B22D 11/20(2006.01) (52) Cooperative Patent Classification (CPC): B22D 11/049; B22D 11/16; B22D 11/18; B22D 11/20 (86) International application number: PCT/US2021/042969 (87) International publication number: WO 2022/020717 (27.01.2022 Gazette 2022/04)

(84) Designated Contracting States: 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 States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.07.2020 US 202062705945 P 23.07.2020 US 202062705947 P (71) Applicant: Novelis, Inc. Atlanta, GA 30326 (US)	(72) Inventors: MCCALLUM, John Robert Buster Kennesaw, Georgia 30144 (US) WAGSTAFF, Robert Bruce Greenacres, Washington 99016 (US) KOSMICKI, Michael R. Spokane, Washington 99206 (US) FENTON, Wayne J. Spokane Valley, Washington 99216 (US) (74) Representative: Feller, Frank  Weickmann & Weickmann Patent- und Rechtsanwälte PartmbB Postfach 860 820 81635 München 81635 München (DE)