EP2514558B1 - Procédé et dispositif de consolidation et/ou de lissage de surface d'une zone de rotor à aubage intégral d'un moteur à réaction - Google Patents

Procédé et dispositif de consolidation et/ou de lissage de surface d'une zone de rotor à aubage intégral d'un moteur à réaction Download PDF

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Publication number
EP2514558B1
EP2514558B1 EP12164035.3A EP12164035A EP2514558B1 EP 2514558 B1 EP2514558 B1 EP 2514558B1 EP 12164035 A EP12164035 A EP 12164035A EP 2514558 B1 EP2514558 B1 EP 2514558B1
Authority
EP
European Patent Office
Prior art keywords
rotor
container
rotor area
smoothing
region
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
EP12164035.3A
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German (de)
English (en)
Other versions
EP2514558A1 (fr
Inventor
Goetz G. Feldmann
Oleksandr Kyrylov
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.)
Rolls Royce Deutschland Ltd and Co KG
Original Assignee
Rolls Royce Deutschland Ltd and Co KG
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Publication date
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Publication of EP2514558A1 publication Critical patent/EP2514558A1/fr
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Publication of EP2514558B1 publication Critical patent/EP2514558B1/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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/06—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers
    • B24B31/064—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving oscillating or vibrating containers the workpieces being fitted on a support
    • 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
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
    • B24B31/0224—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels the workpieces being fitted on a support
    • 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

Definitions

  • the invention relates to a method for surface strengthening and / or smoothing an integrally bladed rotor portion of a jet engine according to the closer defined in the preamble of claim 1.
  • a workpiece to be machined in the interior of the receptacle or the container is fixed by a device and the container or the Schleiftrog then filled with a medium or with solidification bodies for grinding and / or polishing and / or solidification.
  • the workpiece to be machined and the container are vibrated together via an eccentrically mounted drive, whereby arranged in a space defined by the container and the component to be machined intermediate space Abrasive medium or arranged therein solidification and / or smoothing elements are moved. In this case, a relative movement between the surface of the rotor region and the solidification and / or smoothing elements is generated.
  • the medium acts continuously on the surface of the component to be machined, wherein a smoothing and / or a solidification and / or a deburring takes place by material removal and / or material deformation in the region of the surface of a component to be machined.
  • a component to be machined or a rotor region which is arranged upright in the container during processing, is turned over after a defined processing time and the processing process subsequently carried out in known systems.
  • this reversal of the workpiece to be machined in the container is an additional manufacturing step, which extends a processing time of the workpiece to an undesirable extent and ensures uniform machining quality of the rotor area only to a limited extent.
  • the present invention is therefore based on the object to provide a method and an apparatus for surface strengthening and / or smoothing an integrally bladed rotor portion of a jet engine, by means of which a surface of a rotor portion in desired extent within short process times with repeatable processing quality is editable.
  • the rotor section is arranged in a container and a space defined between the surface of the rotor section and the rotor section facing the container and the rotor section at least partially with solidification - And / or smoothing elements filled and generates a relative movement between the surface of the rotor region and the solidification and / or smoothing elements.
  • an axis of rotation of the rotor area is arranged at least approximately horizontally in the container during surface hardening and / or smoothing of the rotor area and a surface area of the rotor area to be consolidated and / or smoothed is spaced from a surface of the container facing the rotor area.
  • a rotor region Due to the at least approximately horizontal or horizontal arrangement of the rotor region in the container or in the conventionally operating sliding-Schlugh trough, a rotor region is uniformly processed over its entire surface.
  • the factor influencing the solidification and / or smoothening result is the dumping height of the grinding medium or of the solidification and / or smoothing elements and resulting partial flow differences between the surface of the rotor region and the solidification and / or smoothing elements due to the horizontal arrangement of the rotor region in the container and the resulting low bed height of the solidification and / or smoothing elements s are eliminated.
  • the surface hardening and / or smoothing of the rotor area is carried out without material removal in the area of the surface of the rotor area.
  • rotor sections made of different materials can be machined simultaneously.
  • the rotor section is of the device in at least approximately horizontal orientation of the axis of rotation the rotor area equivalent position in the container durable.
  • a rotor area with a known compared to the prior art device with a much lower bed height of the solidification and / or smoothing over its entire surface at least approximately uniformly within a short process times treatable because the resulting from a large bed height disadvantages due to lesser extending to the solidification and / or smoothing elements weight forces and process times to an undesirable extent extending additional process steps are avoided in a simple manner.
  • a drive device by means of which the rotor area in its at least approximately to the horizontal orientation of the axis of rotation equivalent position in the container is set in rotation to order between the surface of the rotor portion and for processing in the container solidification and / or Smoothing elements in a simple manner to produce a relative movement and at the same time edit the rotor area with a low bed height of the solidification and / or smoothing elements can, because the rotation of the rotor due to the rotation is not necessarily completely covered with solidification and / or smoothing elements.
  • the rotor region can be connected to the device in an equivalent position to at least approximately vertical alignment of the axis of rotation of the rotor region and via the device into its position equivalent to at least approximately horizontal alignment of the axis of rotation of the rotor region Container can be moved.
  • Fig. 1 shows a longitudinal sectional view of a jet engine 1, which is designed with a bypass duct 2. Furthermore, the jet engine 1 is formed with an inlet region 3, which is followed downstream by a fan 4 in a manner known per se. Again downstream of the fan 4, the fluid flow in the jet engine 1 is divided into a secondary flow and a core flow, wherein the secondary flow through the bypass channel 2 and the core flow flows into an engine core 5, which in turn in a conventional manner with a compressor device 6, a burner 7 and a turbine device 8 is executed.
  • the one-piece rotor region 9 comprises a plurality of blisk regions connected to one another by means of electron beam welding or friction welding or screwing and arranged next to one another in the axial direction, each of which is an integral one represent bladed rotor construction.
  • the term blisk is composed of the English words "blade” for shovel and "disk” for disc.
  • Interconnected discs or annularly connected base body 10 of the rotor area 9 and several circumferentially distributed over the peripheries of the body 10 arranged blade elements 11 are each made of one piece, which accounts for provided with multi-piece rotor sections provided blade roots and pulleys.
  • the one-piece rotor region 9 is characterized by a significantly smaller number of parts compared to conventionally bladed compressor rotors and the disc shape of the annular base body 10 is designed for a lower edge load.
  • the weight of the one-piece rotor region 9, in conjunction with the use of lighter materials, is reduced by up to 50 percent compared to conventional rotor regions.
  • the amount of weight reduction is in each case dependent on the geometry of the compressor device 6.
  • Another positive effect is that the blade elements 11 of the integrally bladed rotor portion 9 can be arranged with a smaller distance to each other, whereby a maximum possible compression and the efficiency can be improved.
  • the rotor portion 9 by means of a in Fig. 2 closer machined device 12 shown, wherein during the processing of the rotor portion 9 in addition to a surface hardening or a surface smoothing and a simultaneous surface hardening and smoothing in the manner described in more detail below is feasible.
  • the device 12 for surface hardening and / or smoothing of the integrally bladed rotor region 9 comprises a device 13 for holding the rotor region 9 in a container 14.
  • the rotor region 9 in the in Fig. 2 in a manner illustrated in more detail in an at least approximately vertical orientation of a rotation axis 15 of the rotor portion 9 with the device 13 connectable and in the in Fig. 3 shown manner of the device 13 in an at least approximately horizontal orientation of the axis of rotation 15 of the rotor portion 9 equivalent position in the container 14 preserved.
  • the interior 16 of the container 14 is filled depending on the particular application case up to a defined height H with solidification and / or smoothing elements 19, which then in a limited by the container 14 and the rotor portion 9 space between the surface 17 and the rotor portion 9 and the rotor area 9 facing surface 18 of the container 14 are arranged.
  • the device 13 is associated with a drive device 20, by means of which the rotor portion 9 in its at least approximately to the horizontal orientation of the axis of rotation 15 equivalent position in the container 14 is set into rotation to between the surface of the rotor portion 9 and the solidification and / or smoothing elements 19th to generate a relative movement and to solidify and / or smooth the surface 17 of the rotor area 9.
  • the surface 17 of the rotor area 9 can be processed via a so-called ball pressure polishing process.
  • ball pressure polishing process two principal major effects occur.
  • One effect is the improvement of the surface quality or roughness of the surface 17 of the rotor region 9, which is not abrasive.
  • a second main effect is the introduction of residual compressive stresses in a near-surface edge region of the rotor region 9 or solidification of a near-surface edge layer of the rotor region 9 in order to improve the rotational stability of the rotor region 9.
  • the rotor region 9 in the device 12 can be processed simultaneously in the region of its complete surface 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (4)

  1. Procédé de consolidation et/ou de lissage de surface d'une zone de rotor (9) intégralement aubagée d'un réacteur (1), sachant que la consolidation et/ou le lissage de surface de la zone de rotor (9) est/sont effectué(e)(s) sans enlèvement de matière dans la partie d'une surface (17) de la zone de rotor (9), qu'un espace intermédiaire délimité par le récipient (14) et la zone de rotor (9) est rempli au moins partiellement d'éléments de consolidation et/ou de lissage (19) entre la surface (17) de la zone de rotor (9) et la surface (18) du récipient (14) faisant face à la zone de rotor (9), qu'est généré un mouvement relatif entre la surface (17) de la zone de rotor (9) et les éléments de consolidation et/ou de lissage (19), caractérisé en ce que la zone de rotor (9) est placée dans un récipient (14) de manière telle qu'un axe de rotation (15) de la zone de rotor (9) est disposé au moins approximativement à l'horizontale dans le récipient (14), et la partie de surface (17) de la zone de rotor (9) devant être consolidée et/ou lissée est distante de la surface (18) du récipient (14) faisant face à la zone de rotor (9), et que les éléments de consolidation et/ou de lissage (19) présentent au moins en partie une forme sphérique.
  2. Procédé selon la revendication n° 1, sachant que le mouvement relatif entre la surface (17) de la zone de rotor (9) et les éléments de consolidation et/ou de lissage (19) est généré par une rotation forcée de la zone de rotor par rapport au récipient (14).
  3. Procédé selon la revendication n° 1 ou n° 2, sachant que le mouvement relatif entre la surface (17) de la zone de rotor (9) et les éléments de consolidation et/ou de lissage (19) est généré par une vibration forcée des éléments de consolidation et/ou de lissage (19) et, de préférence, du récipient (14).
  4. Procédé selon une des revendications n° 1 à n° 3, sachant que, dans un alignement sensiblement vertical de l'axe de rotation (15) de la zone de rotor (9), la zone de rotor (9) est reliée à un dispositif (13) destiné à maintenir la zone de rotor (9) dans la position horizontale à l'intérieur du récipient (14), puis amenée dans la position au moins approximativement horizontale à l'intérieur du récipient (14).
EP12164035.3A 2011-04-19 2012-04-13 Procédé et dispositif de consolidation et/ou de lissage de surface d'une zone de rotor à aubage intégral d'un moteur à réaction Active EP2514558B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011007705A DE102011007705A1 (de) 2011-04-19 2011-04-19 Verfahren und Vorrichtung zum Oberflächenverfestigen und/oder -glätten eines integralbeschaufelten Rotorbereiches eines Strahltriebwerkes

Publications (2)

Publication Number Publication Date
EP2514558A1 EP2514558A1 (fr) 2012-10-24
EP2514558B1 true EP2514558B1 (fr) 2013-08-21

Family

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EP12164035.3A Active EP2514558B1 (fr) 2011-04-19 2012-04-13 Procédé et dispositif de consolidation et/ou de lissage de surface d'une zone de rotor à aubage intégral d'un moteur à réaction

Country Status (3)

Country Link
US (1) US9138856B2 (fr)
EP (1) EP2514558B1 (fr)
DE (1) DE102011007705A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9193111B2 (en) * 2012-07-02 2015-11-24 United Technologies Corporation Super polish masking of integrally bladed rotor
US9017142B2 (en) * 2013-02-14 2015-04-28 Ericus Andreas van Kleef Mass finishing apparatus and method
EP2808124A1 (fr) * 2013-05-29 2014-12-03 MTU Aero Engines GmbH Procédé et dispositif destinés au traitement d'aubes de turbine
DE102013107497B4 (de) 2013-07-15 2019-08-14 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung zur nicht-abrasiven Randschichtbearbeitung eines Bauteils in einem Behälter
DE102013107496A1 (de) 2013-07-15 2015-01-15 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung zur Randschichtbearbeitung eines Bauteils in einem Behälter
DE102013107493A1 (de) * 2013-07-15 2015-01-15 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Bearbeitung einer im Wesentlichen rotationssymmetrischen und um eine Achse drehbar gelagerten Rotorvorrichtung
DE102013107486A1 (de) 2013-07-15 2015-01-15 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung zur Randschichtbearbeitung eines Bauteils in einem Behälter
DE102013107494A1 (de) * 2013-07-15 2015-01-15 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung und Verfahren zur Randschichtbearbeitung eines Bauteils mit einem gegenüber einer Referenzeinrichtung beweglich gelagerten Behälter
US9611531B1 (en) * 2013-12-04 2017-04-04 Thermal Spray Technologies, Inc. Textured spray coatings for decorative and functional surfaces and method of applying same
GB201609619D0 (en) * 2016-06-02 2016-07-20 Rolls Royce Plc And Rolls Royce Marine As And Rolls Royce Deutschland & Co Kg Vibratory treatment apparatus
BE1025262B1 (fr) * 2017-05-31 2019-01-07 Safran Aero Boosters S.A. Procede de grenaillage pour piece de turbomachine

Citations (3)

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Publication number Priority date Publication date Assignee Title
US2720730A (en) * 1952-11-07 1955-10-18 Studebaker Packard Corp Deburring machine
EP0494305A1 (fr) * 1990-05-15 1992-07-15 Kremen, Zinovy Iliich Procede de traitement abrasif d'articles
DE102009043574A1 (de) * 2009-09-30 2011-03-31 Otec Präzisionsfinish GmbH Verfahren und Vorrichtung zur Oberflächenbearbeitung von Werkstücken mittels Schleif- oder Poliergranulat

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US1833025A (en) * 1929-07-31 1931-11-24 Us Pipe & Foundry Company Method for hardening the inner surface of cylindrical metal bodies
DE102005024733A1 (de) * 2005-05-31 2006-12-07 Mtu Aero Engines Gmbh Verfahren zum Oberflächenstrahlen von integral beschaufelten Rotoren
US8220769B2 (en) * 2007-05-31 2012-07-17 Pratt & Whitney Canada Corp. System for transporting a gas turbine engine
DE102009021582A1 (de) * 2009-05-15 2010-12-02 Rolls-Royce Deutschland Ltd & Co Kg Verfahren zur Oberflächenverfestigung und -glättung von metallischen Bauteilen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720730A (en) * 1952-11-07 1955-10-18 Studebaker Packard Corp Deburring machine
EP0494305A1 (fr) * 1990-05-15 1992-07-15 Kremen, Zinovy Iliich Procede de traitement abrasif d'articles
DE102009043574A1 (de) * 2009-09-30 2011-03-31 Otec Präzisionsfinish GmbH Verfahren und Vorrichtung zur Oberflächenbearbeitung von Werkstücken mittels Schleif- oder Poliergranulat

Also Published As

Publication number Publication date
EP2514558A1 (fr) 2012-10-24
US20120266426A1 (en) 2012-10-25
US9138856B2 (en) 2015-09-22
DE102011007705A1 (de) 2012-11-08

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