(19)

(11)

EP 3 151 988 A1

(12)

(43) Date of publication: 12.04.2017 Bulletin 2017/15 (21) Application number: 14736027.5 (22) Date of filing: 09.06.2014

(51) International Patent Classification (IPC):  B21D 51/26(2006.01) C22C 29/08(2006.01) (86) International application number: PCT/IB2014/062073 (87) International publication number: WO 2015/189654 (17.12.2015 Gazette 2015/50)

(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 (71) Applicant: Sandvik Intellectual Property AB 811 81 Sandviken (SE)	(72) Inventors: HEWITT, Stephen, A. Coventry West Midlands CV4 9TH (GB) TARRES PUIT, Elena Coventry West Midlands CV5 7AN (GB) RIMBAU, Victor E-08902 Barcelona (ES) (74) Representative: Setréus, Ellen  Sandvik Intellectual Property AB 811 81 Sandviken 811 81 Sandviken (SE)