(19)

(11)

EP 2 688 708 A1

(12)

(43) Date of publication: 29.01.2014 Bulletin 2014/05 (21) Application number: 12720582.1 (22) Date of filing: 26.03.2012

(51) International Patent Classification (IPC):  B23P 6/00(2006.01) C23C 24/04(2006.01) (86) International application number: PCT/IB2012/051434 (87) International publication number: WO 2012/127457 (27.09.2012 Gazette 2012/39)

(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 (30) Priority: 24.03.2011 IT TO20110257 (71) Applicant: Ge Avio S.r.l. Rivalta di Torino (IT)	(72) Inventors: ZANON, Giovanni Paolo I-10040 Rivalta Di Torino (IT) VEZZU', Simone I-35127 Padova (IT) (74) Representative: Fiussello, Francesco et al Studio Torta S.p.A. Via Viotti, 9 10121 Torino 10121 Torino (IT)