EP1101827A1 - Verfahren zum ultrasonischen Kugelstahlen von grossformatigen ringförmigen Oberflächen von dünnwandiger Werkstücke - Google Patents

Verfahren zum ultrasonischen Kugelstahlen von grossformatigen ringförmigen Oberflächen von dünnwandiger Werkstücke Download PDF

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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
Application number
EP00403183A
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English (en)
French (fr)
Other versions
EP1101827B1 (de
Inventor
Catherine Dominique Béatrice Duquenne
Véronique Christiane Raymonde Giffard
Gérard Michel Roland Gueldry
Claude Marcel Mons
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA Moteurs SA
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Publication date
Application filed by SNECMA Moteurs SA filed Critical SNECMA Moteurs SA
Publication of EP1101827A1 publication Critical patent/EP1101827A1/de
Application granted granted Critical
Publication of EP1101827B1 publication Critical patent/EP1101827B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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)
  • Sliding-Contact Bearings (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP00403183A 1999-11-18 2000-11-16 Verfahren zum Ultraschall-Kugelstahlen von grossformatigen ringförmigen Oberflächen von dünnwandigen Werkstücken Expired - Lifetime EP1101827B1 (de)

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 (de) 2001-05-23
EP1101827B1 EP1101827B1 (de) 2005-01-26

Family

ID=9552239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00403183A Expired - Lifetime EP1101827B1 (de) 1999-11-18 2000-11-16 Verfahren zum Ultraschall-Kugelstahlen von grossformatigen ringförmigen Oberflächen von dünnwandigen Werkstücken

Country Status (10)

Country Link
US (1) US6289705B1 (de)
EP (1) EP1101827B1 (de)
JP (1) JP4267199B2 (de)
CA (1) CA2325897C (de)
DE (1) DE60017681T2 (de)
ES (1) ES2233310T3 (de)
FR (1) FR2801322B1 (de)
RU (1) RU2210602C2 (de)
UA (1) UA66403C2 (de)
WO (1) WO2001036692A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
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 (32)

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Publication number Priority date Publication date Assignee Title
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
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
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
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
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
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
EP1893386B1 (de) * 2005-05-12 2013-07-17 General Electric Company Ultraschall-peening-behandlung montierter komponenten
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 (en) * 2017-11-15 2019-05-23 Arcelormittal Treatment method for a cutting piece, and associated equipment
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

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EP0492323A2 (de) * 1990-12-21 1992-07-01 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Verfahren zur Oberflächenbehandlung von Bauteilen
FR2689431A1 (fr) * 1992-04-06 1993-10-08 Teknoson Procédé et dispositif notamment de durcissement par ultrasons de pièces métalliques.
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EP0492323A2 (de) * 1990-12-21 1992-07-01 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Verfahren zur Oberflächenbehandlung von Bauteilen
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
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Cited By (3)

* Cited by examiner, † Cited by third party
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 (de) * 2000-11-16 2002-05-22 Snecma Moteurs Verfahren zur Verlängerung der Lebensdauer der Laufschaufelnbefestigung auf einem 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
FR2801322A1 (fr) 2001-05-25
DE60017681T2 (de) 2005-12-22
ES2233310T3 (es) 2005-06-16
RU2210602C2 (ru) 2003-08-20
UA66403C2 (uk) 2004-05-17
CA2325897C (fr) 2007-09-18
FR2801322B1 (fr) 2002-02-08
JP4267199B2 (ja) 2009-05-27
WO2001036692A1 (fr) 2001-05-25
US6289705B1 (en) 2001-09-18
CA2325897A1 (fr) 2001-05-18
JP2001170866A (ja) 2001-06-26
DE60017681D1 (de) 2005-03-03
EP1101827B1 (de) 2005-01-26

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