EP1207012A1 - Procédé et dispositif de grenaillage par ultrasons des alveoles "axiales" d'attache des aubes sur un rotor - Google Patents
Procédé et dispositif de grenaillage par ultrasons des alveoles "axiales" d'attache des aubes sur un rotor Download PDFInfo
- Publication number
- EP1207012A1 EP1207012A1 EP01402915A EP01402915A EP1207012A1 EP 1207012 A1 EP1207012 A1 EP 1207012A1 EP 01402915 A EP01402915 A EP 01402915A EP 01402915 A EP01402915 A EP 01402915A EP 1207012 A1 EP1207012 A1 EP 1207012A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavity
- sonotrode
- sheath
- treated
- balls
- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- 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
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- 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
-
- 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
- B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
- B24B39/026—Impact burnishing
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
- F01D5/286—Particular treatment of blades, e.g. to increase durability or resistance against corrosion or erosion
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- 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
Definitions
- the invention relates to a method of surface treatment and setting in compression preload by shot peening of the wall of at least one oblong cavity formed in a part, said cavity opening out the outside by a lateral mouth and having two ends likely to have front openings.
- nozzles can only project microbeads whose diameter is less than 1mm, and typically between 0.3mm and 0.5mm.
- the shot blasting carried out is low so as not to generate a too high roughness in the vicinity of the treated area, which results in limited surface hardening.
- the diameter of the projected balls being small, the stronger the shot blasting, the more the degradation of the state of surface will be important.
- the object of the invention is to propose a shot peening process for oblong cavities, in particular axial cells of the turbine rotor, which allows the creation of reproducible prestresses on all cavities, in a shorter time, while allowing a stronger shot blasting, that is to say greater compression thickness of the surface without, however, introducing injuries and limiting degradation or incrustations of the treated surface.
- the process provides a homogeneous distribution of positions of the balls constituting a mist of balls.
- the balls of fog of beads moving in random directions they strike the walls of the cavities from various angles, which improves the surface condition compared to the balls projected by a nozzle in a privileged direction.
- the entire surface is subjected at the same time to ball impacts, which considerably reduces the risk of deformation of the cavity, in particular, of the socket containing the foot blade.
- the sonotrode can be arranged obliquely to the vertical.
- the sonotrode after having moved the sonotrode and the sheath, the sonotrode is moved substantially vertically relative to the sleeve, so that the vibrating surface closes the mouth.
- the volume in which the fog of balls is distributed being less than the volume obtained when the vibrating surface remains outside the mouth, the process requires a shot blasting treatment time shorter.
- the sonotrode after having peened the wall of a cavity, the sonotrode towards its intermediate position in the sheath, we replace the cavity treated by another cavity to be treated, the sonotrode is moved towards its shot peening position and ultrasonic peening of the wall is carried out from the other cavity to be treated.
- the vibrating surface is not introduced into the mouthpiece, after having peened the wall of a cavity, we replace the treated cavity with a other cavity to be treated, and we proceed with the ultrasonic peening of the wall from the other cavity to be treated.
- the geometry of the part is not always adapted to the device and it is necessary to move both the surface vibrating and the sealing means to clear the space available between the respective feeding steps for each part and / or cavity.
- the sonotrode and the sheath are moved together towards a low position, we replace the treated cavity with another cavity to be treated, we moves the horn and sheath together to the high position of blasting, and we blast the wall of the other by ultrasound cavity to be treated.
- the sonotrode after having peened the wall of a cavity, the sonotrode is moved to its intermediate position in the sheath, the sonotrode and the sheath are moved together to a position low, we replace the treated cavity with another cavity to be treated, we move together the horn and the sheath towards the high shot blasting position, the sonotrode is moved substantially vertically relative to the sheath so that the vibrating surface closes the mouth and we proceed to ultrasonic blasting of the wall of the other cavity to be treated.
- a rotor rim for example comprising a plurality of axial cavities formed at the periphery of said rotor rim and having portions of walls which diverge from each mouth, we do not rotate at not the rotor rim around its axis of rotation arranged horizontally so as to bring each axial cavity successively opposite the sonotrode after the treatment of a cavity.
- a deflector is placed in the cavity in order to promote the shot blasting of the internal sides of the lateral mouth.
- the deflector can be of substantially triangular geometry with sides parallel to the portions of divergent walls so as to reduce the blasting effect of the area between said deflector and the bottom of the cavity.
- the dose of beads is easily retrieved in order to be either reused for a subsequent treatment, or be replaced.
- a dose of balls is used whose diameter is greater than 0.8mm.
- the balls used in the process according to the invention have a diameter larger than the diameter of the balls likely to be projected by a nozzle, so the shot blasting can be stronger while having a less significant surface degradation.
- the invention also relates to an installation for setting up process work.
- a second clearance smaller than the diameter of the balls is formed between said vibrating surface disposed in the mouth of the cavity and said mouth.
- the installation advantageously includes a third lower set the diameter of the balls formed between one end of the sheath and the mouthpiece, which when the vibrating surface does not block the mouthpiece ensures the tightness of the enclosure.
- the installation may include a plurality of acoustic assemblies each comprising a sonotrode and a sheath, arranged around the rim rotor, said acoustic assemblies being able to move in a axial direction of the rotor rim.
- the various elements of the installation are arranged so that no ball can block said elements likely to move.
- the sonotrode and the sheath comprising the closure means have a geometry adapted to the shape of the cavity to be treated.
- the vibrating surface is of complementary shape to the space left by the mouth and the sealing means are formed so as to properly close the openings of said cavity.
- the second displacement means are likely to move the shutter means and the sonotrode together.
- the first means of movement and the second means of displacement are advantageously able to be controlled simultaneously.
- the sheath and the sonotrode are placed in an intermediate position in which the space generated by the means for closing said sheath and the vibrating surface of said sonotrode constitutes a reservoir for the dose of beads. Then said sheath and said sonotrode supporting the dose of beads are moved together using of the same displacement. Finally, the sonotrode and / or the sealing means can be moved individually, depending on the geometry of the cavity to be treated until the vibrating surface respectively closes the mouth of the cavity and that the sealing means close off the cavity openings.
- the installation includes support means to support at least one part to be treated and drive means said support means for bringing step by step a cavity above the sonotrode.
- the installation advantageously includes means for expelling the dose of balls from the vibrating surface to a reservoir.
- Figure 1 shows a rotor rim 1 having a plurality of substantially axial cells 2 formed at the periphery of the rim of rotor 1 and regularly spaced around the axis of rotation 1A of the rim rotor. These cells 2 have a front opening 3 at each end. These cells 2 are dovetail-shaped and have a mouthpiece 2A open radially outward and shaped substantially straight to allow the mounting of the blade roots 4 substantially in the shape of a dovetail of the fan blades 6.
- the alveoli 2 can be straight or curvilinear.
- Each blade root 4 is mounted axially by sliding in a cell 2. Between the blade root 4 and the bottom of the cell 2 can be engaged a wedge (not shown) which keeps the blade root 4 in support against the walls of the corresponding cell 2.
- Figure 2 shows that the support between the walls of the cell 2 and the blade root 4 results in two contact lines 2B.
- the object of the invention is to propose a method and an installation to put in compression preload the wall 2C of each cell 2 and in particular the areas of the two contact lines 2B, so as to increase the wear resistance of these 2B contact lines caused by the friction between the blade root 4 and the wall of the cell 2 and so increase the fatigue strength of the rotor rim 1.
- FIGs 3 and 5 show an example of installation used for implementation of the method in which only one acoustic assembly is used, said acoustic assembly being capable of moving vertically.
- the acoustic assembly essentially comprises a sonotrode 8 disposed in a sheath 16 equipped with shutter cheeks 14. The installation is positioned below the rotor rim 1.
- the sonotrode 8, as well as the sheath 16 are placed in a high position of shot blasting, as shown in figure 3. In this high position of shot peening, the sonotrode 8 preferably blocks the mouth 2A and the obturation cheeks 14 formed on the sheath 16 obturate the two openings 3.
- Balls 10 with a diameter between 0.8mm and 5mm, preferably equal to 1mm, are projected by the vibrating surface 8A towards the top of the sonotrode 8 in the enclosure 12 delimited by the wall 2C, the vibrating surface 8A and the sealing cheeks 14.
- the surface vibrating 8A is excited by a vibration generator 18, for example at quartz, in order to create a mist of beads 10 in the enclosure 12.
- the clearance e1 formed between the sonotrode 8 and the sheath 16 is less the diameter of the balls 10, so that no ball 10 can pass between the vibrating surface 8A and the sheath 16.
- the vibrating surface 8A is substantially rectangular and has a length L1 substantially equal to the length L2 of cell 2 measured axially.
- Sonotrode 8 is in high shot blasting position in the sheath 16 which borders the surface vibrating 8A.
- the shutter cheeks 14 are simple in shape, for example rectangular, in order to completely hide the openings 3.
- the width of the vibrating surface 8A is substantially equal to the width of the mouthpiece 2A.
- Figure 5 shows that the cell 2 is of concave shape with 2'C wall portions which diverge from the mouth 2A.
- a deflector 15 has been introduced carried by the shutter cheeks 14.
- Said deflector 15 is triangular with substantially parallel sides to the 2'C wall portions and to the bottom of the cell. It allows in particular mitigate the blasting effect of the bottom of the cell and increase the shot blasting of the walls 2'C.
- the clearance e2 formed between the vibrating surface 8A of the sonotrode 8 and the mouth 2A is less than the diameter of the balls 10 so that no ball 10 cannot come out of enclosure 12.
- a third set e3 between an end 16A of the sheath 16 and the mouth 2A ensures the tightness of the enclosure 12.
- a first slide 20 makes it possible to carry out the displacements sonotrode 8 vertical by sliding said sonotrode 8 in the sheath 16.
- Control means (not shown) make it possible to controlling said first slide 20 and said second slide 22.
- the first slide 20 can be carried either by the second slide 22, as shown in Figure 5, either by the frame 24, in which case the control of the two slides 20 and 22 must be synchronized to mount together the sonotrode 8 and the sheath 16 towards the high position of shot blasting.
- the sonotrode 8 Before starting the treatment operation of an axial cell 2, the sonotrode 8 is placed in an intermediate position in the sheath 16, position in which the space delimited by the sheath 16 and the surface vibrating 8A, constitutes a container 26 which makes it possible to contain the dose of balls 10 which is deposited on the vibrating surface 8A, as shown in the figure 6.
- a first cell 2 is brought opposite the sonotrode 8, by rotating the rotor rim 1 around its axis of rotation 1A to using training means (not shown).
- Ways drive include for example a stepping motor.
- the sonotrode 8 and the sheath 16 are moved to their high position shot blasting, then we proceed to blasting the first cell 2 in operating the vibration generator 18.
- the sonotrode 8 is released from the mouth 2A towards its intermediate position, then a second cell 2 is brought in look of the sonotrode 8, by turning the rotor rim 1 by an angle equal to that separating two consecutive axial cells 2 around its axis of rotation 1A, and so on until the processing of the whole axial cells 2 formed on the rotor rim 1 is completed.
- the sonotrode 8 is withdrawn towards its low position, shown in FIG. 7, in which the release of the dose of balls 10.
- the balls 10 are for example blown of the surface 8A using a blower 28 through lights 30 formed in the sheath 16 and recovered in a tank 32. Said balls 10 can then be refreshed or replaced for a further processing.
- the sonotrode 8 can be moved according to a oblique direction without departing from the scope of the invention. What matters is there is at least one ball 10 in the container 26 in contact with the surface 8A during the start-up of the sonotrode 8 in order to initiate the formation of the fog of marbles.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
- la figure 1 est une vue en perspective d'une jante de rotor,
- la figure 2 est une vue frontale d'une aube de soufflante disposée dans une cavité axiale formée à la périphérie de la jante de rotor,
- la figure 3 est une coupe axiale de l'installation, le fourreau et la sonotrode étant placés en position haute de grenaillage,
- la figure 4 est une vue en perspective du fourreau contenant la sonotrode placée en position haute de grenaillage dans ledit fourreau,
- la figure 5 est une coupe de la figure 3 selon la ligne V-V,
- la figure 6 est une coupe du fourreau contenant la sonotrode, dans sa position intermédiaire, et
- la figure 7 est une coupe du fourreau contenant la sonotrode, dans sa position basse.
Claims (16)
- Procédé de traitement de surface et de mise en précontrainte de compression par grenaillage de la paroi (2C) d'au moins une cavité oblongue (2) formée dans une pièce (1), ladite cavité (2) débouchant à l'extérieur par une embouchure latérale (2A), et ayant deux extrémités susceptibles de présenter des ouvertures frontales (3),
caractérisé par le fait qu'il comporte les étapes suivantes :a) on place une dose de billes (10) d'un diamètre déterminé sur une surface vibrante (8A) d'une sonotrode (8) préalablement disposée dans une position intermédiaire dans un fourreau (16) entourant ladite surface vibrante (8A) et comportant des moyens d'obturation (14) susceptibles d'obturer les ouvertures frontales (3) de ladite cavité (2),b) on place l'embouchure latérale (2A) de la cavité (2) en regard de ladite sonotrode (8),c) on déplace sensiblement verticalement et ensemble, ladite sonotrode (8) supportant la dose de billes (10) et ledit fourreau vers une position haute de grenaillage dans laquelle les moyens d'obturation (14) obturent les ouvertures frontales (3) de la cavité (2) et dans laquelle la sonotrode, disposée en regard de l'embouchure latérale (2A), délimite, avec le fourreau (16), les moyens d'obturation (14) et la cavité, une enceinte (12) étanche aux billes (10), etd) on procède au grenaillage par ultrasons de la paroi (2C) de la cavité (2), en générant un brouillard de billes (10) dans ladite enceinte (12), au moyen de la sonotrode (8) excitée par des moyens de production d'oscillations ultrasonores (18). - Procédé selon la revendication 1, caractérisé par le fait que, après avoir déplacé ensemble la sonotrode (8) et le fourreau (16), on déplace sensiblement verticalement la sonotrode (8) par rapport au fourreau (16), afin que la surface vibrante (8A) obture l'embouchure (2A).
- Procédé selon la revendication 2, caractérisé par le fait que, après avoir grenaillé la paroi (2C) d'une cavité (2), on déplace la sonotrode (8) vers sa position intermédiaire dans le fourreau (16), on remplace la cavité traitée par une autre cavité (2) à traiter, on déplace la sonotrode (8) vers sa position de grenaillage et on procède au grenaillage par ultrasons de la paroi (2C) de l'autre cavité à traiter.
- Procédé selon la revendication 1, caractérisé par le fait que, après avoir grenaillé la paroi (2C) d'une cavité (2), on remplace la cavité (2) traitée par une autre cavité (2) à traiter, et on procède au grenaillage par ultrasons de la paroi (2c) de l'autre cavité (2) à traiter.
- Procédé selon la revendication 1, caractérisé par le fait que, après avoir grenaillé la paroi (2C) d'une cavité (2), on déplace ensemble la sonotrode (8) et le fourreau (16) vers une position basse, on remplace la cavité traitée par une autre cavité à traiter, on déplace ensemble la sonotrode (8) et le fourreau (16) vers la position haute de grenaillage, et on procède au grenaillage par ultrasons de la paroi (2C) de l'autre cavité à traiter.
- Procédé selon la revendication 2, caractérisé par le fait que, après avoir grenaillé la paroi (2C) d'une cavité (2), on déplace la sonotrode (8) vers sa position intermédiaire dans le fourreau (16), on déplace ensemble la sonotrode (8) et le fourreau (16) vers une position basse, on remplace la cavité traitée par une autre cavité à traiter, on déplace ensemble la sonotrode (8) et le fourreau (16) vers la position haute de grenaillage, on déplace sensiblement verticalement la sonotrode par rapport au fourreau (16) afin que la surface vibrante (8A) obture l'embouchure (21) et on procède au grenaillage par ultrasons de la paroi (2C) de l'autre cavité à traiter.
- Procédé selon l'une quelconque des revendications 3 à 6, destiné à traiter une pièce circulaire, une jante de rotor (1) par exemple comportant une pluralité de cavités axiales (2) formées à la périphérie de ladite jante de rotor (1) et présentant des portions de parois (2'C) qui divergent à partir de chaque embouchure, caractérisé par le fait que l'on fait tourner pas à pas la jante de rotor (1) autour de son axe de rotation (1A) disposée à l'horizontale de manière à amener successivement chaque cavité axiale (2) en regard de la sonotrode (8) après le traitement d'une cavité.
- Procédé selon la revendication 7, caractérisé par le fait que l'on place un déflecteur (15) dans la cavité afin de favoriser le grenaillage des flancs internes de l'embouchure latérale (2A).
- Procédé selon l'une quelconque des revendications 1 à 8, caractérisé par le fait que l'on utilise une dose de billes (10) dont le diamètre est supérieur à 0,8 mm.
- Installation pour mettre en oeuvre le procédé selon l'une quelconque des revendications 1 à 9, caractérisée par le fait qu'elle comporteune sonotrode (8) disposée dans un fourreau (16) équipé de moyens d'obturation (14) susceptibles d'obturer les couvertures frontales (3) d'une cavité (2), ladite sonotrode (8) étant susceptible de projeter des billes (10) d'un diamètre déterminé dans un enceinte (12) délimitée par la paroi (2C) de la cavité (2), la surface vibrante (8A) de ladite sonotrode (8), le fourreau (16) et les moyens d'obturation (14)des moyens de production d'oscillations ultrasonores (18) susceptibles d'exciter ladite sonotrode (8),des premiers moyens (20) pour déplacer sensiblement verticalement ladite sonotrode (8), et des deuxièmes moyens (22) pour déplacer sensiblement verticalement ledit fourreau (16),un premier jeu (e1) inférieur au diamètre des billes (10) étant ménagé entre ladite sonotrode (8) et ledit fourreau (16).
- Installation selon la revendication 10, caractérisée par le fait que un deuxième jeu (e2) inférieur au diamètre des billes (10) est ménagé entre la surface vibrante (8A) disposée dans l'embouchure de la cavité (2) et ladite embouchure (2A).
- Installation selon l'une des revendications 10 ou 11, caractérisée par le fait que un troisième jeu (e3) inférieur au diamètre des billes (10) est ménagé entre une extrémité (16A) du fourreau (16) et la pièce.
- Installation selon l'une quelconque des revendications 10 à 12, caractérisée par le fait que les deuxièmes moyens de déplacement (22) sont susceptibles de déplacer ensemble les moyens d'obturation (14) et la sonotrode (8).
- Installation selon l'une quelconque des revendications 10 à 13, caractérisée par le fait que les premiers moyens de déplacement (20) et les deuxièmes moyens de déplacement (22) sont aptes à être commandés simultanément.
- Installation selon l'une quelconque des revendications 10 à 14, caractérisée par le fait qu'elle comporte des moyens de support pour supporter au moins une pièce (1) à traiter et des moyens d'entraínement desdits moyens de support pour amener pas à pas une cavité (2) au-dessus de la sonotrode (8).
- Installation selon l'une quelconque des revendications 10 à 15, caractérisée par le fait qu'elle comprend des moyens (28) pour chasser la dose de billes (10) de la surface vibrante (8A) vers un réservoir (32).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0014768A FR2816536B1 (fr) | 2000-11-16 | 2000-11-16 | Procede et dispositif de grenaillage par ultrasons des alveoles "axiales" d'attache des aubes sur un rotor |
| FR0014768 | 2000-11-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1207012A1 true EP1207012A1 (fr) | 2002-05-22 |
| EP1207012B1 EP1207012B1 (fr) | 2012-01-11 |
Family
ID=8856530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01402915A Expired - Lifetime EP1207012B1 (fr) | 2000-11-16 | 2001-11-14 | Procédé et dispositif de grenaillage par ultrasons des alvéoles "axiales" d'attache des aubes sur un rotor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6505489B2 (fr) |
| EP (1) | EP1207012B1 (fr) |
| JP (1) | JP3880039B2 (fr) |
| CA (1) | CA2363313C (fr) |
| FR (1) | FR2816536B1 (fr) |
| SG (1) | SG104285A1 (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US6526657B2 (en) * | 2001-05-07 | 2003-03-04 | General Electric Company | Methods for automated peening of tenons connecting turbine buckets and cover plates |
| US6993948B2 (en) * | 2003-06-13 | 2006-02-07 | General Electric Company | Methods for altering residual stresses using mechanically induced liquid cavitation |
| 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 |
| 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 |
| WO2006124616A2 (fr) * | 2005-05-12 | 2006-11-23 | General Electric Company | Traitement par ecrouissage aux ultrasons de composants assembles |
| 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. |
| DE502007002038D1 (de) * | 2007-04-12 | 2009-12-31 | Siemens Ag | Anlagen- und Vorrichtungskonzept für eine Shotpeeninganlage zum Verfestigen von Gasturbinen Laufschaufelfüssen |
| US20090094829A1 (en) * | 2007-10-15 | 2009-04-16 | United Technologies Corporation | Method for ultrasonic peening of gas turbine engine components without engine disassembly |
| JP5148329B2 (ja) * | 2008-03-06 | 2013-02-20 | 三菱重工業株式会社 | ショットピーニング装置及びショットピーニング用振動子 |
| JP5448784B2 (ja) * | 2009-12-18 | 2014-03-19 | 三菱重工業株式会社 | ショットピーニング装置 |
| JP5912916B2 (ja) * | 2012-06-27 | 2016-04-27 | 日立Geニュークリア・エナジー株式会社 | ショットピーニング方法 |
| US9670561B2 (en) * | 2014-04-11 | 2017-06-06 | City University Of Hong Kong | Apparatus and a method for surface processing a metallic structure |
| US9372994B1 (en) | 2014-12-13 | 2016-06-21 | Security Scorecard, Inc. | Entity IP mapping |
| US10493594B2 (en) * | 2016-04-12 | 2019-12-03 | General Electric Company | Apparatus and method for peening of machine components |
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| US4426867A (en) * | 1981-09-10 | 1984-01-24 | United Technologies Corporation | Method of peening airfoils and thin edged workpieces |
| FR2689431A1 (fr) | 1992-04-06 | 1993-10-08 | Teknoson | Procédé et dispositif notamment de durcissement par ultrasons de pièces métalliques. |
| FR2714629A1 (fr) * | 1993-12-30 | 1995-07-07 | Teknoson Sa | Procédé et dispositif d'ébavurage de pièces mécaniques. |
| EP1101568A1 (fr) * | 1999-11-18 | 2001-05-23 | Snecma Moteurs | Procédé et machine de grenaillage par ultrasons de pièces sur une roue |
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| US2460657A (en) * | 1944-12-22 | 1949-02-01 | Lancaster Processes Inc | Method and apparatus for peening the inside of tubes and other hollow bodies |
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| US3668913A (en) * | 1970-10-05 | 1972-06-13 | Metal Improvement Co | Apparatus for shot-peening turbine blades |
| US4419875A (en) * | 1981-09-10 | 1983-12-13 | Progressive Blasting Systems, Inc. | Article manipulator mechanism for accelerated shot treating apparatus |
| FR2713974B1 (fr) * | 1993-12-22 | 1996-01-19 | Snecma | Dispositif de grenaillage de surfaces non accessibles par une canalisation droite. |
| 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. |
| US5620307A (en) * | 1995-03-06 | 1997-04-15 | General Electric Company | Laser shock peened gas turbine engine blade tip |
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-
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- 2000-11-16 FR FR0014768A patent/FR2816536B1/fr not_active Expired - Lifetime
-
2001
- 2001-11-13 CA CA002363313A patent/CA2363313C/fr not_active Expired - Lifetime
- 2001-11-14 EP EP01402915A patent/EP1207012B1/fr not_active Expired - Lifetime
- 2001-11-15 JP JP2001350518A patent/JP3880039B2/ja not_active Expired - Lifetime
- 2001-11-16 SG SG200107174A patent/SG104285A1/en unknown
- 2001-11-16 US US09/987,859 patent/US6505489B2/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4426867A (en) * | 1981-09-10 | 1984-01-24 | United Technologies Corporation | Method of peening airfoils and thin edged workpieces |
| FR2689431A1 (fr) | 1992-04-06 | 1993-10-08 | Teknoson | Procédé et dispositif notamment de durcissement par ultrasons de pièces métalliques. |
| FR2714629A1 (fr) * | 1993-12-30 | 1995-07-07 | Teknoson Sa | Procédé et dispositif d'ébavurage de pièces mécaniques. |
| EP1101568A1 (fr) * | 1999-11-18 | 2001-05-23 | Snecma Moteurs | Procédé et machine de grenaillage par ultrasons de pièces sur une roue |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2363313A1 (fr) | 2002-05-16 |
| JP3880039B2 (ja) | 2007-02-14 |
| SG104285A1 (en) | 2004-06-21 |
| FR2816536B1 (fr) | 2003-01-17 |
| EP1207012B1 (fr) | 2012-01-11 |
| JP2002200563A (ja) | 2002-07-16 |
| US6505489B2 (en) | 2003-01-14 |
| CA2363313C (fr) | 2005-11-08 |
| US20020056304A1 (en) | 2002-05-16 |
| FR2816536A1 (fr) | 2002-05-17 |
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