EP1101827A1 - Procédé de grenaillage par ultraons de surfaces annulaires de grandes dimensions sur des pièces minces - Google Patents
Procédé de grenaillage par ultraons de surfaces annulaires de grandes dimensions sur des pièces minces Download PDFInfo
- Publication number
- EP1101827A1 EP1101827A1 EP00403183A EP00403183A EP1101827A1 EP 1101827 A1 EP1101827 A1 EP 1101827A1 EP 00403183 A EP00403183 A EP 00403183A EP 00403183 A EP00403183 A EP 00403183A EP 1101827 A1 EP1101827 A1 EP 1101827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shot
- blasting
- enclosure
- opening
- microbeads
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005480 shot peening Methods 0.000 title description 17
- 238000005422 blasting Methods 0.000 claims abstract description 43
- 239000011325 microbead Substances 0.000 claims description 27
- 239000003595 mist Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000003116 impacting effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
-
- 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 shot blasting process called "ultrasonic" using a fog of microbeads inside an enclosure and more particularly at a shot blasting process of large annular surfaces on workpieces thin.
- microbeads are commonly rolling bearing balls. They are usually ceramic or steel with a diameter of 0.2mm to 4mm. The shot blasting is carried out inside a closed cabin using powered nozzles simultaneously compressed gas and microbeads, the compressed gas ensuring the propulsion of microbeads.
- fog is used by analogy with tiny fogs water droplets.
- the microbeads are driven by random speeds in module and direction, which makes them ricochet between them, against the walls of the enclosure and against the surface of the part in contact with the microbead fog.
- This patent gives examples of massive parts capable of recovering without deform the stresses resulting from shot peening.
- this process does not allow to blast thin circular pieces, because they start to deform very early during shot blasting itself. Even if the surface is uniformly blasted, these deformations are only partially absorbed at the end of shot blasting because the stress is effected by the plastic and non-linear deformation of the material.
- the process requires that shot peening be stopped precisely when the part has made a turn if you want to get a homogeneous shot blasting. Indeed, a late stopping of shot blasting will produce a localized excess of shot blasting on an overlap area while a stop premature will produce a localized lack of shot peening that will be difficult to complete without causing excessive blasting right next to it.
- a first problem to solve is to blast the thin pieces without deforming them and circular whose dimensions are greater than those of the blasting chamber.
- a second problem to be solved is to guarantee homogeneous shot blasting over the entire surface to be shot blasted.
- the invention provides a method of ultrasonic blasting of large annular surfaces on thin parts, said method consisting in passing the surface to be blasted in front of the opening of a blasting chamber, said chamber containing a "mist" of microbeads maintained by a vibrator inside the enclosure, said microbeads impacting the portion of the surface to be blasted presented in front of the opening, said impacts causing blasting, said enclosure and said part being animated by a relative movement of rotation to pass the entire surface to be shot blasted in front of the enclosure opening during shot blasting.
- the blasting is carried out in N passages in front of the opening of the enclosure, each point of the surface to be blasted passing N times in front of the opening of the enclosure, each passage bringing a fraction substantially equal to 1 / N of the total shot blasting to be carried out.
- the effect of such a process is to improve the homogeneity of the peening over the entire surface to be peened during the actual execution of the peening. It has been found that this homogeneity reduces the deformations of the part during shot peening as well as the residual deformations of the part when shot peening is completed. This result could be explained by the fact that the stresses imposed on the part during blasting remain substantially uniform over the entire blasted surface. Thus the first problem is solved.
- N 5 revolutions. This result will obviously be better with a higher number of revolutions, by example 20 or 100. A large number N is necessary for blasting very thin.
- An advantage of the process is that it allows a large shot peening pushed to the optimum on thin parts without deforming them, since during all shot peening, the stresses imposed on the part remain uniform.
- N 1 is the only way to interpret this patent. Furthermore, it is said in particular on page 7 lines 24 to 34 that a higher speed leads to insufficient shot peening while a lower speed leads to "excessive work hardening".
- the speed parameter Vi is here important because it is necessary to blast exactly the entire periphery of the part in a single turn or in a very small number of turns, in order to respect the duration To during which each part of the surface must be exposed to shot blasting. On the contrary, with the present invention, this speed parameter is of no importance, provided of course that it remains low in comparison with the speed of the microbeads impacting the part.
- the part 1 is a training cone on a aircraft turbine engine.
- the part 1 is constituted by a thin wall and has a shape circular of revolution around a geometric axis 2.
- the part 1 comprises a barrel 3 frustoconical whose end of larger diameter is extended radially by a flange 4, said flange 4 itself comprising a bearing surface 5 for blasting, said bearing surface 5 being annular, planar and radial.
- An enclosure 10 is used inside of which a mist of microbeads 11, said enclosure being delimited laterally by a wall 12, said enclosure having an opening 13 whose edges are referenced 14.
- a vibrator 20 constituted by a sonotrode 21 brought into resonance by one from its ends by a vibration generator 22 which is usually quartz, the other end of the horn 21 having a vibrating surface 23 and substantially flat, said vibrating surface 23 being placed at the bottom of the enclosure 10 and being opposite of the opening 13.
- the vibration generator 22 brings the longitudinal resonance of the sonotrode 21.
- the vibrating surface 23 thus excited transmits energy to the microbeads which rebound on the surface to be shot 5 opposite the opening 13 and on the walls of enclosure 12, said microbeads then gradually losing energy, said microbeads also arriving on the vibrating surface 23 which gives them a new energy.
- the microbeads move inside the enclosure at speeds random in size and direction, these microbeads thus forming a real "mist" of microbeads inside the enclosure 10.
- An advantage of the process is that the shot peening is carried out without contact between the part 1 and the enclosure 10, which makes it possible to avoid any degradation of the surface of the part. Despite this, the microbeads are retained inside the enclosure 10 because the clearance E is less than the diameter of said microbeads. This arrangement also has the advantage of avoiding the use of wear pads on the enclosure 10
- T To x ⁇ x D / L in which To is the duration of the exposure to shot-blasting of each element of the surface to be shot 5, D is the average diameter of said surface 5 and L is the width of the enclosure 10 taken tangentially to the movement of said surface 5 in front the opening 13, that is to say perpendicular to the plane of the single figure.
- the edges 14 of the enclosure 10 will be given a shape complementary to said surface, in order to maintain the clearance E.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
- Les grandes pièces exigent de grandes cabines,
- Le grenaillage est souvent léger pour ne pas déformer les pièces minces. Celles-ci en effet ne peuvent pas reprendre sans se déformer les sollicitations provoquées par les contraintes de compression résultant d'un grenaillage important, cette compression s'étendant alors en profondeur sous la surface grenaillée.
- L'exposition de la pièce au grenaillage passe par un optimum qui donne à cette pièce la meilleure résistance. Un tel grenaillage est cependant difficile à assurer car les buses de grenaillage sont délicates à régler et ne sont pas stables. Ainsi, un grenaillage insuffisant ne donne pas la résistance prévue, mais il est encore possible d'atteindre l'optimum en effectuant un grenaillage complémentaire. Au contraire, un grenaillage excessif provoque une dégradation superficielle irrécupérable de la pièce avec un abaissement de sa résistance.
Un tel procédé est remarquable en ce que la surface à grenailler effectue pendant le grenaillage au moins N = cinq révolutions devant l'ouverture de l'enceinte.
Un tel procédé a pour effet d'améliorer l'homogénéité du grenaillage sur toute la surface à grenailler pendant l'exécution même du grenaillage. Il a été constaté que cette homogénéité réduit les déformations de la pièce pendant le grenaillage ainsi que les déformations résiduelles de la pièce lorsque le grenaillage est achevé. Ce résultat pourrait s'expliquer par le fait que les sollicitations imposées à la pièce pendant le grenaillage restent sensiblement uniformes sur toute la surface grenaillée. Ainsi est résolu le premier problème.
En page 7 ligne 20 est donnée la formule Vi = Ai / To, Vi étant la vitesse de déplacement de l'enceinte sur la pièce, Ai étant la largeur de la surface vibrante qui se confond sensiblement avec la largeur de l'enceinte au vu de la figure 1 et To étant la durée de l'exposition de la surface au grenaillage, cette durée étant donnée par une formule en page 7 ligne 7. Si le grenaillage était effectué en N passages, il aurait fallu écrire Vi = N x Ai / To afin que chaque partie de la surface grenaillée soit bien exposée pendant la durée To. Donc, N = 1 est la seule façon d'interpréter ce brevet.
Par ailleurs, il est dit notamment en page 7 lignes 24 à 34 qu'une vitesse supérieure conduit à un grenaillage insuffisant alors qu'une vitesse inférieure conduit à un "écrouissage excessif". Le paramètre vitesse Vi est ici important car il faut grenailler exactement toute la périphérie de la pièce en un seul tour ou en un très petit nombre de tours, afin de respecter la durée To pendant laquelle chaque partie de surface doit être exposée au grenaillage. Avec la présente invention au contraire, ce paramètre vitesse est sans importance, à condition évidemment qu'il reste faible en comparaison de la vitesse des microbilles venant impacter la pièce.
- on met une dose de microbilles dans l'enceinte,
- on positionne la pièce 1 de façon à amener la surface à grenailler 5 devant l'ouverture 13 avec un jeu E par rapport aux bords 14 de l'ouverture 13, ledit jeu E étant inférieur au diamètre des microbilles,
- on met la pièce 1 en rotation selon son axe géométrique 2,
- on active le générateur de vibrations 23 pendant une durée préétablie T, ladite vitesse de rotation étant calculée simplement pour que la pièce fasse au moins N = 5 tours pendant la durée T,
- on arrête le générateur de vibration 23 au bout du temps T et on retire la pièce 1.
Malgré cela, les microbilles sont retenues à l'intérieur de l'enceinte 10 car le jeu E est inférieur au diamètre desdites microbilles.
Cette disposition a aussi l'avantage d'éviter l'utilisation de patins d'usure sur l'enceinte 10
Claims (2)
- Procédé de grenaillage par ultrasons de surfaces annulaires de grandes dimensions sur des pièces minces, ledit procédé consistant à faire passer la surface à grenailler (5) devant l'ouverture (13) d'une enceinte (10) de grenaillage par ultrasons, ladite enceinte (10) renfermant un "brouillard" de microbilles (11) entretenu par un vibrateur (20) à l'intérieur de l'enceinte (10), lesdites microbilles venant impacter la portion de la surface à grenailler (5) présentée devant l'ouverture (13), lesdits impacts provoquant le grenaillage, ladite enceinte (10) et ladite pièce (1) étant animée d'un mouvement relatif de rotation pour faire passer toute la surface à grenailler devant l'ouverture (13) pendant le grenaillage,
caractérisé en ce que la surface à grenailler (5) effectue au moins N = cinq révolutions devant l'ouverture (13) pendant le grenaillage. - Procédé selon la revendication 1, l'ouverture (13) comportant des bords (14), caractérisé en ce que la surface à grenailler (5) est positionnée devant l'ouverture (13) avec un jeu E, ledit jeu E étant inférieur au diamètre des microbilles utilisées.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9914481 | 1999-11-18 | ||
| FR9914481A FR2801322B1 (fr) | 1999-11-18 | 1999-11-18 | Procede de grenaillage par ultrasons de surfaces annulaires de grandes dimensions sur des pieces minces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1101827A1 true EP1101827A1 (fr) | 2001-05-23 |
| EP1101827B1 EP1101827B1 (fr) | 2005-01-26 |
Family
ID=9552239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00403183A Expired - Lifetime EP1101827B1 (fr) | 1999-11-18 | 2000-11-16 | Procédé de grenaillage par ultrasons de surfaces annulaires de grandes dimensions sur des pièces minces |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6289705B1 (fr) |
| EP (1) | EP1101827B1 (fr) |
| JP (1) | JP4267199B2 (fr) |
| CA (1) | CA2325897C (fr) |
| DE (1) | DE60017681T2 (fr) |
| ES (1) | ES2233310T3 (fr) |
| FR (1) | FR2801322B1 (fr) |
| RU (1) | RU2210602C2 (fr) |
| UA (1) | UA66403C2 (fr) |
| WO (1) | WO2001036692A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2816538A1 (fr) * | 2000-11-16 | 2002-05-17 | Snecma Moteurs | Procede pour augmenter la duree de vie des attaches d'aubes sur un rotor |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6932876B1 (en) | 1998-09-03 | 2005-08-23 | U.I.T., L.L.C. | Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces |
| US20050145306A1 (en) * | 1998-09-03 | 2005-07-07 | Uit, L.L.C. Company | Welded joints with new properties and provision of such properties by ultrasonic impact treatment |
| US6338765B1 (en) | 1998-09-03 | 2002-01-15 | Uit, L.L.C. | Ultrasonic impact methods for treatment of welded structures |
| US6458225B1 (en) * | 1998-09-03 | 2002-10-01 | Uit, L.L.C. Company | Ultrasonic machining and reconfiguration of braking surfaces |
| US20060016858A1 (en) * | 1998-09-03 | 2006-01-26 | U.I.T., Llc | Method of improving quality and reliability of welded rail joint properties by ultrasonic impact treatment |
| 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 |
| 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 |
| FR2816636B1 (fr) | 2000-11-16 | 2003-07-18 | Snecma Moteurs | Grenaillage des sommets des aubes refroidies |
| 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 |
| JP2005192194A (ja) * | 2003-12-05 | 2005-07-14 | Yazaki Corp | 通信装置及び通信システム |
| US7399371B2 (en) * | 2004-04-16 | 2008-07-15 | Nippon Steel Corporation | Treatment method for improving fatigue life and long-life metal material treated by using same treatment |
| US7301123B2 (en) | 2004-04-29 | 2007-11-27 | U.I.T., L.L.C. | Method for modifying or producing materials and joints with specific properties by generating and applying adaptive impulses a normalizing energy thereof and pauses therebetween |
| 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 |
| US7276824B2 (en) * | 2005-08-19 | 2007-10-02 | U.I.T., L.L.C. | Oscillating system and tool for ultrasonic impact treatment |
| US20070068605A1 (en) * | 2005-09-23 | 2007-03-29 | U.I.T., Llc | Method of metal performance improvement and protection against degradation and suppression thereof by ultrasonic impact |
| DE102005054866A1 (de) † | 2005-11-17 | 2007-05-31 | Mtu Aero Engines Gmbh | Verfahren zum Herstellen von metallischen Bauteilen, insbesondere für Turbomaschinen, mit kleinen Kantenradien |
| US20070244595A1 (en) * | 2006-04-18 | 2007-10-18 | U.I.T., Llc | Method and means for ultrasonic impact machining of surfaces of machine components |
| 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. |
| DE102007009470A1 (de) * | 2007-02-27 | 2008-08-28 | Daimler Ag | Verfahren und Vorrichtung zum Oberflächenstrahlen |
| US20090095043A1 (en) * | 2007-10-11 | 2009-04-16 | Bunting Billie W | Conformable tooling for localized shot peening |
| FR2930184B1 (fr) * | 2008-04-18 | 2010-12-31 | Snecma | Procede de grenaillage par ultrason de pieces de turbomachines. |
| 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 |
| WO2019097275A1 (fr) * | 2017-11-15 | 2019-05-23 | Arcelormittal | Procédé de traitement d'une piece de coupe et équipement associé |
| EP3787702B1 (fr) | 2018-05-03 | 2024-08-07 | CollPlant Ltd. | Produits de comblement cutanés et leurs applications |
| CN113084714A (zh) * | 2021-04-21 | 2021-07-09 | 中国科学院宁波材料技术与工程研究所 | 一种空化喷丸装置 |
| CN114941066B (zh) * | 2022-05-27 | 2023-06-02 | 南京航空航天大学 | 一种液氮冷却的超声喷丸加工装置及方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1435627A1 (ru) * | 1987-04-06 | 1988-11-07 | Кузнецкий металлургический комбинат им.В.И.Ленина | Способ упрочнени стальных изделий |
| EP0492323A2 (fr) * | 1990-12-21 | 1992-07-01 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Procédé de traitement de surfaces de pièces |
| FR2689431A1 (fr) * | 1992-04-06 | 1993-10-08 | Teknoson | Procédé et dispositif notamment de durcissement par ultrasons de pièces métalliques. |
| US5509286A (en) * | 1994-02-04 | 1996-04-23 | Gec Alsthom Electromecanique Sa | Method and apparatus for surface treating and prestressing the inside wall of a cavity |
| RU2130085C1 (ru) * | 1997-05-29 | 1999-05-10 | Казаков Владимир Михайлович | Способ поверхностного упрочнения деталей |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU439383A2 (ru) * | 1971-04-12 | 1974-08-15 | Предприятие П/Я Г-4561 | Способ упрочнения наружных и внутренних поверхностей |
| FR2743742B1 (fr) * | 1996-01-24 | 1998-04-03 | Seb Sa | Procede de traitement d'une surface metallique et de fabrication d'un article culinaire |
| RU2132267C1 (ru) * | 1998-02-10 | 1999-06-27 | Военный автомобильный институт | Способ дробеструйной обработки изделий |
-
1999
- 1999-11-18 FR FR9914481A patent/FR2801322B1/fr not_active Expired - Fee Related
-
2000
- 2000-11-16 UA UA2001085828A patent/UA66403C2/uk unknown
- 2000-11-16 CA CA002325897A patent/CA2325897C/fr not_active Expired - Lifetime
- 2000-11-16 EP EP00403183A patent/EP1101827B1/fr not_active Expired - Lifetime
- 2000-11-16 RU RU2001123241/02A patent/RU2210602C2/ru active
- 2000-11-16 DE DE60017681T patent/DE60017681T2/de not_active Expired - Lifetime
- 2000-11-16 WO PCT/FR2000/003182 patent/WO2001036692A1/fr not_active Ceased
- 2000-11-16 ES ES00403183T patent/ES2233310T3/es not_active Expired - Lifetime
- 2000-11-17 JP JP2000351647A patent/JP4267199B2/ja not_active Expired - Lifetime
- 2000-11-17 US US09/714,223 patent/US6289705B1/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1435627A1 (ru) * | 1987-04-06 | 1988-11-07 | Кузнецкий металлургический комбинат им.В.И.Ленина | Способ упрочнени стальных изделий |
| EP0492323A2 (fr) * | 1990-12-21 | 1992-07-01 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Procédé de traitement de surfaces de pièces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2816538A1 (fr) * | 2000-11-16 | 2002-05-17 | Snecma Moteurs | Procede pour augmenter la duree de vie des attaches d'aubes sur un rotor |
| EP1207013A1 (fr) * | 2000-11-16 | 2002-05-22 | Snecma Moteurs | Procédé pour augmenter la durée de vie des attaches d'aubes sur un rotor |
| US6536109B2 (en) | 2000-11-16 | 2003-03-25 | Snecma Moteurs | Method for extending the life of attachments that attach blades to a rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1101827B1 (fr) | 2005-01-26 |
| FR2801322A1 (fr) | 2001-05-25 |
| ES2233310T3 (es) | 2005-06-16 |
| US6289705B1 (en) | 2001-09-18 |
| UA66403C2 (uk) | 2004-05-17 |
| DE60017681D1 (de) | 2005-03-03 |
| WO2001036692A1 (fr) | 2001-05-25 |
| DE60017681T2 (de) | 2005-12-22 |
| CA2325897A1 (fr) | 2001-05-18 |
| FR2801322B1 (fr) | 2002-02-08 |
| RU2210602C2 (ru) | 2003-08-20 |
| JP2001170866A (ja) | 2001-06-26 |
| CA2325897C (fr) | 2007-09-18 |
| JP4267199B2 (ja) | 2009-05-27 |
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