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EP 3 433 037 A1

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(43) Date of publication: 30.01.2019 Bulletin 2019/05 (21) Application number: 17715616.3 (22) Date of filing: 24.03.2017

(51) International Patent Classification (IPC):  B22D 7/00(2006.01) B22D 37/00(2006.01) B22D 11/10(2006.01) B22D 9/00(2006.01) (86) International application number: PCT/US2017/024002 (87) International publication number: WO 2017/165758 (28.09.2017 Gazette 2017/39)

(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: MA MD (30) Priority: 25.03.2016 US 201662313493 P (71) Applicant: Novelis Inc. Atlanta, GA 30326 (US)	(72) Inventor: WAGSTAFF, Samuel R. Woodstock, Georgia 30188 (US) (74) Representative: Weickmann & Weickmann PartmbB  Postfach 860 820 81635 München 81635 München (DE)