EP 2697014 A1 20140219 - METHOD FOR PRODUCING A SINGLE-PIECE ROTOR PORTION AND SINGLE-PIECE ROTOR PORTION
Title (en)
METHOD FOR PRODUCING A SINGLE-PIECE ROTOR PORTION AND SINGLE-PIECE ROTOR PORTION
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES EINSTÜCKIGEN ROTORBEREICHES UND EINSTÜCKIGER ROTORBEREICH
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE PARTIE DE ROTOR MONOBLOC ET PARTIE DE ROTOR MONOBLOC
Publication
Application
Priority
- DE 102011007224 A 20110412
- EP 2012056612 W 20120412
Abstract (en)
[origin: WO2012140103A1] The invention relates to a method for producing a single-piece rotor portion (9), especially of a jet engine (1). The rotor portion (9) comprises an annular base (10) and a plurality of blade elements (11) distributed over the periphery and extending away from the base (10) in a substantially radial fashion. Residual stress is introduced by deep rolling into near-surface portions of the blade elements (11) by means of deep rolling tools that engage between the blade elements. During deep rolling, a portion of a blade element (11) is arranged between portions of the deep-rolling tool and lateral sides of the blade element are deep-rolled at the same time. According to the invention, the deep-rolling tool is introduced radially between the blade elements (11) and the surfaces of the blade elements are deep-rolled, resulting in at least the blade elements (11) having deep-rolled surfaces.
IPC 8 full level
B23P 9/02 (2006.01); B23P 15/00 (2006.01); B23P 15/02 (2006.01); B24B 39/00 (2006.01); C21D 1/02 (2006.01); C21D 7/02 (2006.01); F04D 29/00 (2006.01)
CPC (source: EP US)
B23P 9/02 (2013.01 - EP US); B24B 39/04 (2013.01 - EP US); C21D 7/08 (2013.01 - EP US); F01D 5/02 (2013.01 - EP US); F01D 5/147 (2013.01 - US); F05D 2230/26 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US); Y10T 29/49332 (2015.01 - EP US)
Citation (search report)
See references of WO 2012140103A1
Designated contracting state (EPC)
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
DOCDB simple family (publication)
DE 102011007224 A1 20121018; EP 2697014 A1 20140219; US 2013216391 A1 20130822; WO 2012140103 A1 20121018
DOCDB simple family (application)
DE 102011007224 A 20110412; EP 12715668 A 20120412; EP 2012056612 W 20120412; US 201213823698 A 20120412