EP1761361B1 - Procede et dispositif pour decapage de surfaces d'aubes de turbines a gaz au niveau de l'emplanture - Google Patents

Procede et dispositif pour decapage de surfaces d'aubes de turbines a gaz au niveau de l'emplanture Download PDF

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Publication number
EP1761361B1
EP1761361B1 EP05753780A EP05753780A EP1761361B1 EP 1761361 B1 EP1761361 B1 EP 1761361B1 EP 05753780 A EP05753780 A EP 05753780A EP 05753780 A EP05753780 A EP 05753780A EP 1761361 B1 EP1761361 B1 EP 1761361B1
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EP
European Patent Office
Prior art keywords
gas turbine
blade
vibrator
shot peening
ultrasonic sonotrode
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.)
Active
Application number
EP05753780A
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German (de)
English (en)
Other versions
EP1761361A1 (fr
Inventor
Erwin Bayer
Thomas Peschke
Holger Polanetzki
Alexander Winkler
Thomas Dautl
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
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MTU Aero Engines GmbH
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Publication date
Application filed by MTU Aero Engines GmbH filed Critical MTU Aero Engines GmbH
Publication of EP1761361A1 publication Critical patent/EP1761361A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • B24B1/04—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/006—Peening and tools therefor
    • 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
    • Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
    • 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
    • Y10T29/49323—Assembling fluid flow directing devices, e.g., stators, diaphragms, nozzles
    • 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
    • Y10T29/49325—Shaping integrally bladed rotor

Definitions

  • the invention relates to a method for surface blasting, in particular for ultrasonic shot peening, of gas turbine blades in the region of their blade roots.
  • the invention further relates to a device for surface blasting, in particular for ultrasonic blasting, of gas turbine blades in the region of their ends Bucket feet according to the preamble of claim 8.
  • Gas turbines in particular aircraft engines, have at least one rotor equipped with rotating blades, in particular in the area of their compressor and turbine, wherein the rotating blades of the gas turbine are anchored via profiled blade feet in corresponding recesses of the gas turbine rotor.
  • it is possible to profile the blade roots either by the so-called Tannehbaum design or by the so-called dovetail design and anchored in correspondingly profiled recesses of the gas turbine rotor.
  • the preferably fir-tree-profiled or dovetailed surfaces of a blade root of a gas turbine blade are also referred to as wings.
  • the wear rate in the area of the blade roots can be reduced by solidifying the blade roots on their wings by special surface treatment methods.
  • the shot peening is preferably used. In conventional shot peening, significant surface roughening on the airfoils of the blade roots may occur, thereby adversely affecting the accuracy of fit of the blade roots.
  • the gas turbine blades to be machined are aligned such that the profiled bearing surfaces of the blade roots to be machined run substantially perpendicular to the oscillating surface of the ultrasonic sonotrode.
  • the profiled bearing surfaces of the blade roots to be machined run substantially perpendicular to the oscillating surface of the ultrasonic sonotrode.
  • the present invention is based on the problem to provide a novel method and a novel device for surface blasting, in particular for ultrasonic shot peening, of gas turbine blades in the region of their blade roots.
  • the or each gas turbine blade for surface blasting is oriented such that at least one profiled bearing surface of the or each blade root at least at times extends substantially parallel to a vibrating surface of the or each vibrator, in particular the or each ultrasonic sonotrode, during surface blasting the vibrating surface of the or each vibrator is oriented substantially horizontally or horizontally.
  • the gas turbine blades are not positioned as in the prior art, but rather are positioned horizontally in a processing chamber.
  • the quality of processing in surface blasting of the wings over the prior art can be significantly improved.
  • the device according to the invention for surface blasting, in particular for ultrasonic shot peening, of gas turbine blades in the region of their blade roots is defined in claim 8.
  • FIG. 1 shows in highly schematic form a device 10 according to the invention for ultrasonic shot peening of gas turbine blades in the region of their blade roots together with a gas turbine blade 11.
  • the device 10 according to the invention has a vibrator designed as an ultrasonic sonotrode 12 with a substantially horizontal direction Above the vibrating surface 13 of the ultrasonic sonotrode 12, a processing chamber 14 is positioned, wherein in the processing chamber 14 of FIG. 1, a gas turbine blade 11 is arranged with its blade root 15. Laterally projecting in the region of the blade root 15 gas turbine blade 11 projects with its blade 16 out of the processing chamber 14.
  • the processing chamber is bounded on its underside by the vibrating surface 13 of the ultrasonic sonotrode 12, laterally and upwardly by respective covers 17, 18 and 19, respectively.
  • a plurality of balls extending from the oscillating one Surface 13 of the ultrasonic sonotrode accelerated and directed to the blade root 15 of the gas turbine blade 11 to be machined. Under the influence of gravity, the balls return to the area of the oscillating surface 13, in order then to be accelerated or moved again in the direction of the blade root 15 to be processed.
  • the gas turbine blade 11 positioned with the blade root 15 in the processing chamber 14 is aligned for ultrasonic shot peening such that at least one profiled bearing surface of the blade root 15 of the gas turbine blade 11 is parallel to the horizontally or horizontally extending beam , vibrating surface 13 of the ultrasonic sonotrode 12 is aligned.
  • the gas turbine blade 11 is therefore within the processing chamber 14 such that an axis extending from the radially inner end of the blade root 15 in the direction of a radially outer end of the blade 16 in contrast to the prior art according to the US 6,536,109 B2 does not run vertically or vertically, but rather horizontally or horizontally.
  • the spheres of FIG Balls are not directed in a preferred direction on the wings to be machined wings of the blade root 15, but rather with different angles. This results in an efficient solidification on the wings of the blade roots.
  • FIG. 2 shows an embodiment of a device 20 according to the invention for shot peening of gas turbine blades in the region of their blade roots, wherein in the processing chamber 14 of the device 20 in the embodiment of FIG. 2, two gas turbine blades 11 with their blade feet 15 in the sense of the present invention for ultrasonic Shot peening are positioned or aligned in such a way that, during blasting, the supporting surface of the blade roots 15 to be blasted is essentially parallel to the vibrating surface 13 of the ultrasonic sonotrode 12.
  • the device of FIG. 2 is identical to the device of FIG. 1, so that the same reference numbers are used for the same components.
  • FIG. 3 shows a further embodiment of a device 21 according to the invention for shot peening of gas turbine blades in the region of their blade roots, wherein also in connection with the embodiment of Fig. 3 to avoid unnecessary repetition for the same components same reference numerals are used.
  • the embodiment of FIG. 3 differs from the embodiment of FIG. 1 essentially in that the shown gas turbine blade 11 is aligned within the processing chamber 14 during shot peening in such a way with respect to the vibrating surface 13 of the ultrasonic sonotrode 12 that a tangent to projections of one of oscillating surface 13 opposite support surface of the blade root 15 is substantially parallel to the vibrating surface 13 and thus extends substantially in the horizontal direction.
  • the device 21 according to the invention has a device 22 for tilting or pivoting the gas turbine blade 11 within the processing chamber 14.
  • FIGS. 4 and 5 show a further embodiment of a device 23 according to the invention for shot peening gas turbine blades in the region of their blade feet, the device 23 according to FIGS. 4 and 5 again via an ultrasonic sonotrode 24 with a substantially horizontal or horizontal direction extending, vibrating surface 25 features.
  • a processing chamber 26 is positioned, which is shown in highly schematic form in FIG. Within the processing chamber 26, in the exemplary embodiment of FIGS.
  • two gas turbine blades 11 are blasted in the region of their blade roots 15, the gas turbine blades 11 for ultrasonic shot peening in turn being aligned such that at least one airfoil, in particular fir tree profiled or dovetail profiled airfoil, is formed during blasting the blade roots 15 at least temporarily substantially parallel to the oscillating, extending in the horizontal direction surface 25 of the ultrasonic sonotrode 24 extends.
  • the device according to the invention 23 has a revolver-like rotatable support 27 which is rotatable about an axis 29 in the direction of the arrow 28.
  • a plurality of turntable 30 are arranged for receiving gas turbine blades 11.
  • each of the turntables 30 is individually rotatable in the direction of an arrow 31, namely, when the corresponding turntable 30 for processing the positioned on the turntable 30 gas turbine blades 11 in the region of the processing chamber 26 and thus the ultrasonic sonotrode 24 is located.
  • a turntable 30 together with the gas turbine blades 11 positioned on the turntable 30 can be moved into or out of the processing station 26 by turning the revolver-type carrier 27 in the direction of the arrow 28.
  • the corresponding turntable 30 is rotatable in the direction of the arrow 31, so as to ensure a uniform blasting of all wings of the blade roots 15 of the gas turbine blades 11.
  • All embodiments have in common that are aligned for ultrasonic shot peening of gas turbine blades 11 in the region of their blade roots 15 the same so relative to a substantially extending in the horizontal direction, vibrating surface 13 of an ultrasonic sonotrode 12, that to be radiated, in particular fir-profiled or Dovetail profiled wings of the blade roots 15 are aligned parallel to the vibrating surface 13.
  • the gas turbine blades 11 are therefore not aligned within the processing chamber, but rather lying with a horizontal longitudinal axis extending between the radially inner end of the blade root and the radially outer end of the blade of the gas turbine blades. About this longitudinal axis, the gas turbine blades are rotatable during shot peening.
  • the devices according to the invention only ever comprise one sonotrode, which is arranged below the processing chamber. It should be noted that, of course, a plurality of sonotrodes in the region of a processing chamber 26 can be arranged, in which case preferably a sonotrode or a vibrating surface of the sonotrodes is arranged below and another above the processing chamber.
  • an optimized solidification depth and an increased compressive residual stress during ultrasonic shot peening can be achieved compared to the prior art. This is achieved by the inventive alignment of the blade roots during ultrasonic shot peening. By rotating or rotating the blade feet during the ultrasonic shot peening, the quality of the blasted surface can be further improved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Claims (13)

  1. Procédé pour le grenaillage de surface, en particulier pour le grenaillage à billes par ultrasons d'aubes de turbines à gaz au niveau des pieds d'aubes, où, à l'aide d'au moins un vibrateur, en particulier d'au moins une sonotrode à ultrasons, des billes sont projetées de manière accélérée sur un pied d'au moins une aube de turbine à gaz, pour traiter celui-ci dans la zone d'au moins une surface de support profilée, en particulier profilée en forme de sapin ou en queue d'aronde, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est orientée pour le grenaillage de surface de telle manière que, lors du grenaillage, au moins une surface de support profilée du pied ou de chaque pied d'aube à traiter s'étende au moins temporairement sensiblement parallèlement à une surface oscillante du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons.
  2. Procédé selon la revendication 1, caractérisé en ce que le vibrateur ou chaque vibrateur, en particulier la sonotrode ou chaque sonotrode à ultrasons, est positionné de telle manière qu'une surface oscillante du vibrateur ou de chaque vibrateur s'étende sensiblement horizontalement.
  3. Procédé selon la revendication 1 ou la revendication 2, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est orientée pour le grenaillage par billes de telle manière qu'au moins une surface de support profilée à traiter s'étende au moins temporairement sensiblement parallèlement à la surface oscillante du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons, et donc sensiblement horizontalement.
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est orientée pour le grenaillage par billes de telle manière que, lors du grenaillage, une tangente à des saillies d'une surface de support profilée s'étende au moins temporairement sensiblement parallèlement à la surface oscillante d'un vibrateur, en particulier d'une sonotrode à ultrasons.
  5. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est orientée à plat pour le grenaillage par billes de telle manière qu'un axe allant de l'extrémité intérieure dans le sens radial d'un pied d'aube vers une extrémité extérieure dans le sens radial d'une pale s'étende sensiblement parallèlement à la surface oscillante du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons.
  6. Procédé selon l'une des revendications 1 à 5, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est tournée pour le grenaillage par billes autour d'une surface sensiblement parallèle à la surface oscillante du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons.
  7. Procédé selon la revendication 6, caractérisé en ce que l'aube ou chaque aube de turbine à gaz est tournée pour le grenaillage par billes autour de l'axe allant de l'extrémité intérieure dans le sens radial du pied d'aube vers l'extrémité extérieure dans le sens radial de la pale.
  8. Dispositif pour le grenaillage de surface, en particulier pour le grenaillage à billes par ultrasons d'aubes (11) de turbines à gaz au niveau des pieds d'aubes (15), comprenant au moins un vibrateur présentant une surface oscillante (13, 25), en particulier avec au moins une sonotrode à ultrasons (12, 24), où la surface oscillante du vibrateur ou de chaque vibrateur s'étend sensiblement horizontalement, un compartiment de traitement (14, 26) pour le logement du pied d'aube ou de chaque pied d'aube (15) à traiter étant contigu à la surface oscillante ou à chaque surface oscillante, caractérisé en ce que le compartiment de traitement (14, 26) comporte dans la zone d'au moins un couvercle intérieur (17, 18, 19) au moins un évidement ou une ouverture pour l'introduction et l'extraction du pied d'aube (15) d'au moins une aube (11) de turbine à gaz, et en ce qu'au moins un dispositif (22, 27, 30) est prévu pour le déplacement et le positionnement, au moyen duquel l'aube ou chaque aube (11) de turbine à gaz est orientable pour le grenaillage de surface de telle manière que, lors du grenaillage, au moins une surface de support profilée du pied ou de chaque pied d'aube (15) à traiter s'étende au moins temporairement sensiblement parallèlement à la surface oscillante (13, 25) du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons (12, 24).
  9. Dispositif selon la revendication 8, caractérisé en ce que le compartiment de traitement (14, 26) est réalisé de telle manière que l'aube ou chaque aube (11) de turbine à gaz est orientée à plat pour le grenaillage par billes de telle manière qu'un axe allant de l'extrémité intérieure dans le sens radial d'un pied d'aube vers une extrémité extérieure dans le sens radial d'une pale s'étende sensiblement parallèlement à la surface oscillante du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons.
  10. Dispositif selon la revendication 8 ou la revendication 9, caractérisé en ce que l'aube ou chaque aube (11) de turbine à gaz peut à l'intérieur du compartiment de traitement (14, 26) être tournée pour le grenaillage par billes autour d'un axe s'étendant sensiblement parallèlement à la surface oscillante (13, 25) du vibrateur ou de chaque vibrateur, en particulier de la sonotrode ou de chaque sonotrode à ultrasons (12, 24), de préférence autour de l'axe allant de l'extrémité intérieure dans le sens radial du pied d'aube (15) vers l'extrémité extérieure dans le sens radial de la pale (16).
  11. Dispositif selon l'une des revendications 8 à 10, caractérisé par un support (27) rotatif de type revolver, sur lequel plusieurs aubes (11) de turbine à gaz peuvent être positionnées circonférentiellement, chaque rotation du support (27) permettant à au moins une aube de turbine à gaz d'être introduite dans le compartiment de traitement (26) ou d'être extraite de celui-ci.
  12. Dispositif selon la revendication 11, caractérisé en ce que le support (27) comporte plusieurs plateaux rotatifs (30) espacés circonférentiellement entre eux pour la réception chacun de deux aubes (11) de turbine à gaz, de préférence.
  13. Dispositif selon la revendication 12, caractérisé en ce que chaque plateau rotatif (30) peut tourner autour d'un axe individuel de plateau rotatif, d'une part, et en ce que tous les plateaux rotatifs (30) peuvent tourner ensemble autour d'un axe du support (27) de type revolver, d'autre part.
EP05753780A 2004-06-19 2005-06-08 Procede et dispositif pour decapage de surfaces d'aubes de turbines a gaz au niveau de l'emplanture Active EP1761361B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004029546A DE102004029546A1 (de) 2004-06-19 2004-06-19 Verfahren und Vorrichtung zum Oberflächenstrahlen von Gasturbinenschaufeln im Bereich ihrer Schaufelfüße
PCT/DE2005/001022 WO2005123338A1 (fr) 2004-06-19 2005-06-08 Procede et dispositif pour decapage de surfaces d'aubes de turbines a gaz au niveau de l'emplanture

Publications (2)

Publication Number Publication Date
EP1761361A1 EP1761361A1 (fr) 2007-03-14
EP1761361B1 true EP1761361B1 (fr) 2007-11-28

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EP05753780A Active EP1761361B1 (fr) 2004-06-19 2005-06-08 Procede et dispositif pour decapage de surfaces d'aubes de turbines a gaz au niveau de l'emplanture

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Country Link
US (1) US7481088B2 (fr)
EP (1) EP1761361B1 (fr)
DE (2) DE102004029546A1 (fr)
WO (1) WO2005123338A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037954A1 (de) * 2004-08-05 2006-03-16 Mtu Aero Engines Gmbh Vorrichtung zum Oberflächenstrahlen von Bauteilen
DE102004059592B4 (de) * 2004-12-10 2014-09-04 MTU Aero Engines AG Verfahren zum Oberflächenstrahlen von Hohlräumen, insbesondere von Hohlräumen an Gasturbinen
US7805972B2 (en) * 2005-10-12 2010-10-05 Surface Technology Holdings Ltd. Integrally bladed rotating turbo machinery and method and apparatus for achieving the same
DE102006008210A1 (de) 2006-02-22 2007-08-23 Mtu Aero Engines Gmbh Strahlkammer zum Oberflächenstrahlen, insbesondere zum Ultraschall-Kugelstrahlen von Gasturbinen-Bauteilen
US7665338B2 (en) * 2006-10-20 2010-02-23 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Shot peening methods and units
DE102006058679A1 (de) 2006-12-13 2008-06-19 Mtu Aero Engines Gmbh Vorrichtung und Verfahren zum Oberflächenstrahlen eines Bauteils einer Gasturbine
FR2930184B1 (fr) * 2008-04-18 2010-12-31 Snecma Procede de grenaillage par ultrason de pieces de turbomachines.
JP5920221B2 (ja) * 2010-11-12 2016-05-18 日本精工株式会社 作動装置の製造方法
US20130183157A1 (en) * 2012-01-17 2013-07-18 Venkatarama K. Seetharaman Method of surface treatment for dovetail in gas turbine engine fan blade
CN109517955A (zh) * 2018-11-16 2019-03-26 上海蜂云航空科技有限公司 一种用于提高发动机喷嘴射流孔件热稳定性的方法及设备
CN117140370B (zh) * 2023-10-27 2024-01-02 中北大学 一种具有专用夹具的六自由度双频超声空化喷丸装置

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3668912A (en) 1970-07-08 1972-06-13 Carborundum Co Shot peening apparatus
US3695091A (en) 1970-09-28 1972-10-03 Metal Improvement Co Method of and apparatus for measuring intensity of peening in small diameter holes
US3668913A (en) 1970-10-05 1972-06-13 Metal Improvement Co Apparatus for shot-peening turbine blades
US4115076A (en) 1977-05-24 1978-09-19 Bethlehem Steel Corporation Abrasive material suitable for manually blast cleaning ferrous metals prior to painting
DE2906509A1 (de) 1979-02-20 1980-08-28 Kopp Reiner Verfahren zur formgebung mit einem auf eine seite eines gegenstandes zur einwirkung gelangenden stoffstrahl
US4694672A (en) 1984-01-05 1987-09-22 Baughman Davis L Method and apparatus for imparting a simple contour to a workpiece
US4888863A (en) * 1988-03-21 1989-12-26 Westinghouse Electric Corp. Method and apparatus for producing turbine blade roots
DE3823675A1 (de) 1988-07-13 1990-01-18 Dornier Gmbh Einrichtung zum biegeumformen oder richten von werkstuecken durch plastische formaenderung
US5085747A (en) 1989-05-19 1992-02-04 Akio Nikano Ultrasonic machining method
DE4041365A1 (de) 1990-12-20 1992-07-02 Bandelin Electronic Gmbh & Co Sonotrode mit kavitationsschutzschicht
FR2698576B1 (fr) 1992-11-30 1995-02-17 Framatome Sa Procédé et dispositif de réparation d'une zone défectueuse de la paroi d'une pièce métallique et en particulier d'une pièce tubulaire.
US5596912A (en) 1993-08-12 1997-01-28 Formica Technology, Inc. Press plate having textured surface formed by simultaneous shot peening
FR2715884B1 (fr) 1994-02-04 1996-04-12 Gec Alsthom Electromec Procédé et dispositif pour le traitement de surface et la mise en précontrainte de la paroi intérieure d'une cavité.
JP2745487B2 (ja) 1994-05-16 1998-04-28 東芝タンガロイ株式会社 ショット加工用ボール
JPH091065A (ja) 1995-04-19 1997-01-07 Ngk Spark Plug Co Ltd 超音波ホーン
FR2743742B1 (fr) 1996-01-24 1998-04-03 Seb Sa Procede de traitement d'une surface metallique et de fabrication d'un article culinaire
US5771729A (en) 1997-06-30 1998-06-30 General Electric Company Precision deep peening with mechanical indicator
US5950470A (en) 1998-09-09 1999-09-14 United Technologies Corporation Method and apparatus for peening the internal surface of a non-ferromagnetic hollow part
FR2791293B1 (fr) 1999-03-23 2001-05-18 Sonats Soc Des Nouvelles Appli Dispositifs de traitement de surface par impacts
US6170308B1 (en) 1999-07-20 2001-01-09 United Technologies Corporation Method for peening the internal surface of a hollow part
US6584820B1 (en) 1999-09-23 2003-07-01 Polyclad Laminates, Inc. Surface enhanced metal press plates for use in manufacture of laminates and multilayer materials and method of making same
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
CA2348834A1 (fr) 2000-05-30 2001-11-30 George I Prokopenko Dispositif pour le martelage aux ultrasons de metaux
DE10037029A1 (de) 2000-07-27 2002-02-28 Kugelstrahlzentrum Aachen Gmbh Verfahren und Vorrichtung zum Umformen von Strukturbauteilen
CA2317845C (fr) 2000-09-08 2006-12-19 Steven Kennerknecht Panneaux toles profiles et formation de ceux-ci par grenaillage de precontrainte
FR2814099B1 (fr) 2000-09-21 2002-12-20 Snecma Moteurs Grenaillage transversal par ultrassons des aubes sur un rotor
US7028378B2 (en) 2000-10-12 2006-04-18 Sonats-Societe Des Nouvelles Applications Des Techniques De Surfaces Method of shot blasting and a machine for implementing such a method
FR2815280B1 (fr) 2000-10-12 2003-01-03 Sonats Soc Des Nouvelles Appli Machine et procede de grenaillage
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
FR2816538B1 (fr) 2000-11-16 2003-01-17 Snecma Moteurs Procede pour augmenter la duree de vie des attaches 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
FR2816636B1 (fr) * 2000-11-16 2003-07-18 Snecma Moteurs Grenaillage des sommets des aubes refroidies
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
DE102004037954A1 (de) * 2004-08-05 2006-03-16 Mtu Aero Engines Gmbh Vorrichtung zum Oberflächenstrahlen von Bauteilen
US7140216B2 (en) * 2004-11-18 2006-11-28 General Electric Company laser aligned shotpeen nozzle

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DE102004029546A1 (de) 2006-01-05
EP1761361A1 (fr) 2007-03-14
WO2005123338A1 (fr) 2005-12-29
US20070214640A1 (en) 2007-09-20
DE502005002115D1 (de) 2008-01-10
US7481088B2 (en) 2009-01-27

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