EP1623794A1 - Dispositif pour le grenaillage de précontrainte de surfaces des pièces - Google Patents

Dispositif pour le grenaillage de précontrainte de surfaces des pièces Download PDF

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Publication number
EP1623794A1
EP1623794A1 EP05016117A EP05016117A EP1623794A1 EP 1623794 A1 EP1623794 A1 EP 1623794A1 EP 05016117 A EP05016117 A EP 05016117A EP 05016117 A EP05016117 A EP 05016117A EP 1623794 A1 EP1623794 A1 EP 1623794A1
Authority
EP
European Patent Office
Prior art keywords
processing chamber
shaped
cross
legs
vibrator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05016117A
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German (de)
English (en)
Other versions
EP1623794B1 (fr
Inventor
Erwin Dr. Bayer
Thomas Dautl
Thomas Peschke
Holger Polanetzki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1623794A1 publication Critical patent/EP1623794A1/fr
Application granted granted Critical
Publication of EP1623794B1 publication Critical patent/EP1623794B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/005—Vibratory devices, e.g. for generating abrasive blasts by ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/10—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/08—Devices for generating abrasive blasts non-mechanically, e.g. of metallic abrasives by means of a magnetic field or by detonating cords
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S451/00—Abrading
    • Y10S451/91—Ultrasonic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/71—Vibrating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/47—Burnishing
    • Y10T29/479—Burnishing by shot peening or blasting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/4932—Turbomachine making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making
    • Y10T29/49336—Blade making

Definitions

  • the invention relates to a device for surface blasting, in particular for ultrasonic shot peening, of components, in particular gas turbine components, according to the preamble of patent claim 1.
  • Gas turbines in particular aircraft engines, have, in particular in the area of a compressor and a turbine, at least one rotor equipped with rotating blades, wherein the rotating rotor blades of the gas turbine are either anchored via profiled blade feet in recesses of the gas turbine rotor or are an integral part of a gas turbine rotor. If the blades are anchored via blade roots in corresponding recesses of the rotor, then the blades are either profiled according to the so-called fir-tree design or according to the so-called dovetail design.
  • the preferably fir-tree-profiled or dovetail-profiled surfaces of a blade root of a gas turbine blade are also referred to as support flanks or wings.
  • a surface treatment method for solidifying components in particular gas turbine components such as gas turbine blades, preferably shot peening is used.
  • shot peening In conventional shot peening, a significant surface roughening at the blasted surfaces can occur.
  • US 6,536,109 B2 discloses a corresponding device with an ultrasonic sonotrode, wherein the ultrasonic sonotrode a horizontal or horizontally extending, vibrating or vibrating surface, and extending above this vibrating surface, a processing chamber in which gas turbine blades are arranged standing with their blade roots for processing the same in the region of their wings.
  • the gas turbine blades to be machined are aligned in such a way that the profiled bearing surfaces of the blade roots to be machined run substantially perpendicular to the oscillating surface of the ultrasonic sonotrode. This only an insufficient quality can be achieved during shot peening of the profiled wings of the blade roots.
  • blasting of thin-walled components is not possible with the device disclosed in US Pat. No. 6,526,109 B2, since such thin-walled components would be exposed to unacceptable deformation during machining in this device known from the prior art.
  • the present invention is based on the problem to provide a novel device for surface blasting, in particular for ultrasonic shot peening, of components.
  • the processing chamber is limited in cross-section by at least three legs, namely at least two substantially vertically extending legs and at least one substantially horizontally extending leg, wherein at least the vertically extending legs of the processing chamber are formed by vibrating surfaces of a respective vibrator.
  • the processing chamber is formed in cross-section W-shaped or V-shaped, wherein at least the vertically extending legs of the cross-sectionally W-shaped or V-shaped processing chamber are formed by vibrating surfaces of a respective vibrator.
  • the horizontally extending legs may be formed as surfaces of a respective vibrator or as injectors, wherein the injectors move the balls back onto the vibrating, substantially vertically extending legs.
  • the device according to the invention for surface blasting of components, a significantly better quality of machining of the surfaces of a component to be machined can be achieved compared to the devices known from the prior art. Furthermore, the device according to the invention makes it possible, for example, to machine blade roots or blade leaves of gas turbine blades in such a way that sections to be consolidated are simultaneously blasted from two opposite sides. As a result, on the one hand, the effectiveness of surface blasting increases, on the other hand, inadmissible deformations of the radiating, thin-walled component sections are avoided in particular in thin-walled components. With the device according to the invention, even thin-walled disks with so-called wings on integrally bladed gas turbine rotors can be bombarded with high intensity during ultrasonic shot peening without unduly deforming these complex-shaped components during surface blasting.
  • the cross-sectionally W-shaped or V-shaped processing chamber of two outer, substantially vertically extending long legs and at least one inner, substantially horizontally extending short leg is limited, each of the legs of a vibrating surface each of a vibrator is formed.
  • a further oscillating surface of a vibrator is positioned in transition regions between outer, long legs and inner, short legs or in low points of the processing chamber, which is W-shaped or V-shaped in cross-section, or an injector for the balls is provided.
  • Fig. 1 shows a highly schematic of an inventive device 10 for ultrasonic shot peening in conjunction with a gas turbine blade 11, which is to radiate in the inventive device 10 on profiled support flanks or wings 12 and 13 of a blade root 14.
  • the gas turbine blade 11 projects with the blade root 14 into a processing chamber 15 provided by the device according to the invention, wherein an airfoil 16 of the gas turbine blade 11, which is not to be processed in FIG. 1, emerges from the processing chamber 15 of the device 10 according to the invention protrudes.
  • the processing chamber 15 is W-shaped in cross-section or marked by a W-profile.
  • the cross-sectionally W-shaped processing chamber 15 is bounded by two outer, substantially vertically extending long legs 17 and 18 and two inner, substantially horizontally extending short legs 19 and 20.
  • each of these legs 17, 18, 19 and 20 is formed by a vibrating surface of a vibrator, namely an ultrasonic sonotrode.
  • the legs 17, 18, 19 and 20 of the W-shaped processing chamber 15 are therefore the vibrating surfaces of ultrasonic sonotrodes, wherein the oscillating portion of the surfaces is visualized by double arrows.
  • the support flanks or wings 12 and 13 of the radiant blade root 14 are fir tree profiled, and the legs 17 and 18 extend substantially parallel to an envelope 22 of the tannenbauprofil believing support flanks or wings 12 and 13.
  • the device 10 according to the invention thus makes it possible to radiate the blade root 14 simultaneously from both sides, that is to say in the area of both wings.
  • the processing chamber 15, which is W-shaped in cross section, is bounded by a total of six oscillating surfaces of corresponding ultrasonic sonotrodes or by four oscillating surfaces and two injectors. In the area of the outer, long legs 17 and 18 and the inner short leg 19 and 20, an ultrasonic sonotrode is positioned in each case. On the upper side, the processing chamber 15 is closed by a cover 21.
  • the projecting into the processing chamber 15 blade root 14 can be solidified in the device according to the invention in a particularly effective and gentle manner on the support flanks or wings 12 and 13.
  • the blade root 14 can be blasted from both sides at the same time, ie simultaneously in the area of both support flanks or wings 12 and 13.
  • FIG. 2 shows the device 10 according to the invention when blasting an integrally bladed gas turbine rotor 25 in the region of a rotor disk 26.
  • protrusions 27 - also called wings - extend almost completely over the open top W profile of the processing chamber 15, so can be dispensed with a cover at the top of the processing chamber 15.
  • the rotor disk 26 is blasted on both sides.
  • FIG. 3 shows the device 10 according to the invention during the blasting of an airfoil 29 of an integrally bladed gas turbine rotor 25. Also, airfoils 29 can be radiated effectively and at the same time gently by means of the device 10 according to the invention.
  • FIG. 4 shows the device 10 according to the invention when blasting the integrally bladed gas turbine rotor 25 in the region of a thin-walled wing 27 and a sealing fin 29.
  • the device 10 of FIG. 4 differs from the devices 10 of FIGS. 1 to 3 only in that Embodiment of Fig. 4, the two outer, long legs 17 and 18 are substantially parallel to each other. This W-shaped profile is particularly advantageous when blasting thin-walled wings.
  • FIG. 5 again shows in highly schematic form a device 30 according to the invention for ultrasound shot peening in conjunction with a gas turbine blade 11 which in the device 10 according to the invention has profiled support flanks or wings 12 and 13, respectively to radiate a blade root 14.
  • the gas turbine blade 11 projects with the blade root 14 into a processing chamber 15 provided by the device according to the invention, wherein an airfoil 16 of the gas turbine blade 11, which is not to be processed in FIG. 1, emerges from the processing chamber 15 of the device 10 according to the invention protrudes.
  • the processing chamber 31 of the device 30 is formed in cross-section V-shaped or marked by a V-profile.
  • the cross-sectionally V-shaped processing chamber 31 is bounded by two outer, substantially vertically extending long legs 32 and 33 and an inner, substantially horizontally extending short leg 34.
  • Each of these legs 32, 33 and 34 is formed by a vibrating surface of a vibrator, namely an ultrasonic sonotrode.
  • an injector may also be positioned. It is not only in the region of the legs 32, 33 and 34 of the cross-sectionally V-shaped processing chamber 31 vibrating surfaces of ultrasonic sonotrodes positioned, but also in transition regions 35 and 36 between the outer, long legs 32 and 33 and the inner , short leg 34.
  • a device for surface blasting of components wherein a processing chamber of the device has a W-profile or V-profile or in cross-section W-shaped or V-shaped, and wherein at least in the region of the substantially vertical legs of the profile vibrating surfaces of ultrasonic sonotrodes are positioned.
  • vibrating surfaces of ultrasonic sonotrodes or injectors are also positioned in the transition region between the outer and the inner legs, ie at the lowest point of the profiles.
  • the device according to the invention is preferably used for blasting thin-walled gas turbine components, in particular for blasting gas turbine blades in the area of their blade roots or blades, and for blasting integrally bladed gas turbine rotors in the area of the rotor disks and blades of the same.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP05016117A 2004-08-05 2005-07-25 Dispositif pour le grenaillage de précontrainte de surfaces des pièces Active EP1623794B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004037954A DE102004037954A1 (de) 2004-08-05 2004-08-05 Vorrichtung zum Oberflächenstrahlen von Bauteilen

Publications (2)

Publication Number Publication Date
EP1623794A1 true EP1623794A1 (fr) 2006-02-08
EP1623794B1 EP1623794B1 (fr) 2007-07-18

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Country Link
US (1) US8091192B2 (fr)
EP (1) EP1623794B1 (fr)
DE (2) DE102004037954A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071166A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'un rotor de turbine à gaz
WO2008071162A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Procédé et dispositif pour grenailler la surface d'un élément d'une pièce de turbine à gaz
WO2008071161A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'une pièce de turbine à gaz
WO2008071164A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'une pièce de turbine à gaz
WO2009000232A1 (fr) * 2007-06-26 2008-12-31 Mtu Aero Engines Gmbh Procédé et dispositif de grenaillage de surface d'un composant dans la zone d'une ouverture traversante
WO2009127725A1 (fr) * 2008-04-18 2009-10-22 Snecma Procede de grenaillage par ultrasons de pieces de turbomachines
EP2248630A1 (fr) * 2008-03-06 2010-11-10 Mitsubishi Heavy Industries, Ltd. Dispositif de grenaillage et oscillateur pour grenaillage
WO2020083422A1 (fr) 2018-10-22 2020-04-30 Schaeffler Technologies AG & Co. KG Procédé permettant le traitement d'une bague de palier et la fabrication d'un palier à roulement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004029546A1 (de) * 2004-06-19 2006-01-05 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Oberflächenstrahlen von Gasturbinenschaufeln im Bereich ihrer Schaufelfüße
DE102004059592B4 (de) * 2004-12-10 2014-09-04 MTU Aero Engines AG Verfahren zum Oberflächenstrahlen von Hohlräumen, insbesondere von Hohlräumen an Gasturbinen
DE102006016949A1 (de) * 2006-04-11 2007-10-25 Mtu Aero Engines Gmbh Verfahren zum Herstellen eines Bauteils
DE102008010847A1 (de) * 2008-02-25 2009-08-27 Rolls-Royce Deutschland Ltd & Co Kg Verfahren und Vorrichtung zum Kugelstrahlverfestigen von Bliskschaufeln
DE102010001287A1 (de) * 2010-01-27 2011-07-28 Rolls-Royce Deutschland Ltd & Co KG, 15827 Verfahren und Vorrichtung zur Oberflächenverfestigung von Bliskschaufeln
EP3373015A1 (fr) 2011-11-07 2018-09-12 Beckman Coulter Inc. Système d'aliquote et flux de travail

Citations (4)

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US4991360A (en) * 1988-07-25 1991-02-12 Carrier Vibrating Equipment, Inc. Method and apparatus for surface treating a workpiece
US20020042978A1 (en) * 2000-10-12 2002-04-18 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Method of shot blasting and a machine for implementing such a method
US6526109B1 (en) 1999-07-16 2003-02-25 Conexant Systems, Inc. Method and apparatus for hybrid smart center loop for clock data recovery
US6536109B2 (en) 2000-11-16 2003-03-25 Snecma Moteurs Method for extending the life of attachments that attach blades to a rotor

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US3967413A (en) * 1974-11-15 1976-07-06 Ultramatic Equipment Company Vibratory finishing systems
US5271184A (en) * 1992-05-06 1993-12-21 Majors Curtis O Vibratory finishing apparatus for hollow cylindrical and other large or groupings of articles
DE29713448U1 (de) * 1997-07-29 1997-10-23 Spaichingen Gmbh Maschf Vorrichtung zur Ultraschallbearbeitung von Werkstücken
FR2791293B1 (fr) * 1999-03-23 2001-05-18 Sonats Soc Des Nouvelles Appli Dispositifs de traitement de surface par impacts
FR2801236B1 (fr) * 1999-11-18 2001-12-21 Snecma Procede et machine de grenaillage par ultrasons de pieces sur une roue
FR2801322B1 (fr) * 1999-11-18 2002-02-08 Snecma Procede de grenaillage par ultrasons de surfaces annulaires de grandes dimensions sur des pieces minces
FR2814099B1 (fr) * 2000-09-21 2002-12-20 Snecma Moteurs Grenaillage transversal par ultrassons des aubes sur un rotor
DE20019000U1 (de) * 2000-11-08 2001-01-18 Spaichingen Gmbh Maschf Vorrichtung zur Ultraschallbearbeitung von Werkstücken
FR2816636B1 (fr) * 2000-11-16 2003-07-18 Snecma Moteurs Grenaillage des sommets des aubes refroidies
FR2816537B1 (fr) * 2000-11-16 2003-01-17 Snecma Moteurs Procede et installation de grenaillage par ultrasons des alveoles annulaires d'attache d'aubes sur un rotor
FR2816536B1 (fr) * 2000-11-16 2003-01-17 Snecma Moteurs Procede et dispositif de grenaillage par ultrasons des alveoles "axiales" d'attache des aubes sur un rotor
US6526657B2 (en) * 2001-05-07 2003-03-04 General Electric Company Methods for automated peening of tenons connecting turbine buckets and cover plates
DE102004029546A1 (de) * 2004-06-19 2006-01-05 Mtu Aero Engines Gmbh Verfahren und Vorrichtung zum Oberflächenstrahlen von Gasturbinenschaufeln im Bereich ihrer Schaufelfüße
US20060021410A1 (en) * 2004-07-30 2006-02-02 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Shot, devices, and installations for ultrasonic peening, and parts treated thereby
US7992416B2 (en) * 2005-05-12 2011-08-09 General Electric Company Ultrasonic peening treatment of assembled components
DE102006008210A1 (de) * 2006-02-22 2007-08-23 Mtu Aero Engines Gmbh Strahlkammer zum Oberflächenstrahlen, insbesondere zum Ultraschall-Kugelstrahlen von Gasturbinen-Bauteilen
DE102006036519A1 (de) * 2006-08-04 2008-02-07 Mtu Aero Engines Gmbh Deckelelement für eine Sonotrode und Strahlkammeranordnung zum Oberflächenstrahlen von Bauteilen
US7665338B2 (en) * 2006-10-20 2010-02-23 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Shot peening methods and units
FR2907360B1 (fr) * 2006-10-20 2009-05-22 Sonats Soc Des Nouvelles Appli Procedes et installations de grenailles.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4991360A (en) * 1988-07-25 1991-02-12 Carrier Vibrating Equipment, Inc. Method and apparatus for surface treating a workpiece
US6526109B1 (en) 1999-07-16 2003-02-25 Conexant Systems, Inc. Method and apparatus for hybrid smart center loop for clock data recovery
US20020042978A1 (en) * 2000-10-12 2002-04-18 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Method of shot blasting and a machine for implementing such a method
US6536109B2 (en) 2000-11-16 2003-03-25 Snecma Moteurs Method for extending the life of attachments that attach blades to a rotor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008071166A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'un rotor de turbine à gaz
WO2008071162A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Procédé et dispositif pour grenailler la surface d'un élément d'une pièce de turbine à gaz
WO2008071161A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'une pièce de turbine à gaz
WO2008071164A1 (fr) * 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Dispositif et procédé pour grenailler la surface d'une pièce de turbine à gaz
US8943659B2 (en) 2006-12-13 2015-02-03 Mtu Aero Engines Gmbh Method and device for the surface peening of a partial element of a component of a gas turbine
US8931318B2 (en) 2006-12-13 2015-01-13 Mtu Aero Engines Gmbh Device and method for the surface peening of a component of a gas turbine
US8650920B2 (en) 2007-06-26 2014-02-18 Mtu Aero Engines Gmbh Method and device for surface peening of a component in the region of a passage opening
WO2009000232A1 (fr) * 2007-06-26 2008-12-31 Mtu Aero Engines Gmbh Procédé et dispositif de grenaillage de surface d'un composant dans la zone d'une ouverture traversante
EP2248630A1 (fr) * 2008-03-06 2010-11-10 Mitsubishi Heavy Industries, Ltd. Dispositif de grenaillage et oscillateur pour grenaillage
EP2248630A4 (fr) * 2008-03-06 2014-03-12 Mitsubishi Heavy Ind Ltd Dispositif de grenaillage et oscillateur pour grenaillage
US8627695B2 (en) 2008-04-18 2014-01-14 Snecma Method for ultrasound shot-blasting of turbomachine parts
FR2930184A1 (fr) * 2008-04-18 2009-10-23 Snecma Sa Procede de grenaillage par ultrason de pieces de turbomachines.
WO2009127725A1 (fr) * 2008-04-18 2009-10-22 Snecma Procede de grenaillage par ultrasons de pieces de turbomachines
WO2020083422A1 (fr) 2018-10-22 2020-04-30 Schaeffler Technologies AG & Co. KG Procédé permettant le traitement d'une bague de palier et la fabrication d'un palier à roulement

Also Published As

Publication number Publication date
EP1623794B1 (fr) 2007-07-18
DE502005001038D1 (de) 2007-08-30
US8091192B2 (en) 2012-01-10
DE102004037954A1 (de) 2006-03-16
US20060174483A1 (en) 2006-08-10

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