(19)

(11)

EP 2 825 345 A1

(12)

(43) Date of publication: 21.01.2015 Bulletin 2015/04 (21) Application number: 13712517.5 (22) Date of filing: 14.03.2013

(51) International Patent Classification (IPC):  B23K 26/26(2014.01) B23K 26/20(2014.01) B23K 26/06(2014.01) B23K 26/067(2006.01) B21C 47/24(2006.01) (86) International application number: PCT/EP2013/055300 (87) International publication number: WO 2013/135847 (19.09.2013 Gazette 2013/38)

(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 (30) Priority: 14.03.2012 EP 12159535 (71) Applicant: Tata Steel Nederland Technology B.V. 1951 JZ Velsen-Noord (NL)	(72) Inventors: CELOTTO, Steven NL-1970 CA IJmuiden (NL) VAN DER VELDT, Tonny NL-1970 CA IJmuiden (NL) DE WIT, Engbert Jan NL-1970 CA IJmuiden (NL) DEN UIJL, Nick Johannes NL-1970 CA IJmuiden (NL) (74) Representative: Bodin, Andre  Tata Steel Nederland Technology BV Group Intellectual Property Services PO Box 10000-3G.37 1970 CA IJmuiden 1970 CA IJmuiden (NL)