EP0290773A1 - Procédé de fabrication par meulage de pièces profilées et aube de turbine ainsi fabriquée - Google Patents

Procédé de fabrication par meulage de pièces profilées et aube de turbine ainsi fabriquée Download PDF

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Publication number
EP0290773A1
EP0290773A1 EP88105239A EP88105239A EP0290773A1 EP 0290773 A1 EP0290773 A1 EP 0290773A1 EP 88105239 A EP88105239 A EP 88105239A EP 88105239 A EP88105239 A EP 88105239A EP 0290773 A1 EP0290773 A1 EP 0290773A1
Authority
EP
European Patent Office
Prior art keywords
grinding
blade
contour
head
per unit
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
EP88105239A
Other languages
German (de)
English (en)
Other versions
EP0290773B1 (fr
Inventor
Ulrich Kühne
Klaus Meyer
Karlheinz Heine
Klaus Rüschmann
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.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT88105239T priority Critical patent/ATE63709T1/de
Publication of EP0290773A1 publication Critical patent/EP0290773A1/fr
Application granted granted Critical
Publication of EP0290773B1 publication Critical patent/EP0290773B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2200/00—Mathematical features
    • F05B2200/30—Mathematical features miscellaneous
    • F05B2200/31—Mathematical features miscellaneous odd
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49316—Impeller making

Definitions

  • the present invention relates to a method for producing a profile part from a blank according to the preamble of claim 1 as well as a correspondingly manufactured turbomachine blade and an associated intermediate product.
  • the object of the present invention is to create a method which enables the most economical production of profile parts, the cross-sectional profile of which, at least in some areas, differs considerably from the cross-sectional profile of the associated blank.
  • the invention relates to a turbomachine blade manufactured according to this method, and to a typical associated intermediate product.
  • a typical application example is a turbomachine blade, as described in claims 5 and 6 as a correspondingly manufactured product.
  • a method which is particularly suitable for producing small turbomachine blades is also specified in claim 11.
  • the rotations and translations of the blank relative to the grinding wheel are initially essentially determined by the profile to be produced. Only the speed of these movements, generally called the feed speed, can be freely selected. For an economical process, this feed rate must generally be chosen to be as large as possible. However, there are limits here, among other things, due to the heat input into the workpiece. Depending on the contour to be produced, the The feed is therefore controlled or regulated in such a way that the machining volume per unit of time follows a predefinable function, preferably remains approximately constant. This means that the rotation and translation are slowed down if a great deal of material has to be removed from the point being worked on.
  • the entire constellation of the blank, the profile to be produced and the machining state achieved can be taken into account when determining an optimal function which the machining volume per unit time should follow.
  • Decisive for the heating of the workpiece during grinding is the heat dissipation from the grinding point. Part of the heated material is removed immediately afterwards, for example, so that this heat input is not critical.
  • the dimensions of the workpiece, its heat capacity and thermal conductivity must be taken into account (in short: heat dissipation in the vicinity of the grinding point). It generally applies that the lower the heat removal at the grinding point, the smaller the machining volume per unit of time. For example, in very thin areas of the workpiece, the machining volume per unit of time u. U. be reduced.
  • a turbine blade with the characterizing features of claim 5 is particularly economical to produce. By grinding all non-concave contours of the blade in just one clamping, many work steps of the previously known machining steps can be saved. Manufacturing with very low tolerances is possible because of inaccuracies due to changing clamping of the workpiece. Significant time savings in production can also be achieved since the intermediate storage of entire batches, from partially completed blades to the conversion of a machine to new machining tools, is practically completely eliminated.
  • the intermediate product has a total length f which is greater than the length a of the blade to be manufactured.
  • the blade itself consists of a blade root 2 with webs 2.1 and 2.2 grooves; all foot shapes known in the prior art can be used.
  • the blade has a head which has a parallelogram cross-section and forms a closed shroud together with other blade heads during later installation.
  • the actual blade contour has a rounded inflow side 6, a pointed outflow side 7 and a convex suction side 4.
  • the later concave pressure side 5 is not yet finished in the intermediate product shown, but only ground flat.
  • the contour of the blade root 2 is lengthened by the length b, and the contour of the blade head 3 is lengthened by the length c.
  • a cutting device can later be attached in a defined manner. Further points the intermediate product has two remnants 8, 9 at the two ends, which do not necessarily have the same lengths c and e. These remnants serve to firmly clamp the blank or intermediate product during the entire grinding process.
  • the present invention enables e.g. B. an economical, precise manufacture of blades for turbomachinery, a very fast production run is possible by saving many different operations.
  • the production planning is simplified because intermediate storage is no longer necessary; the manufacturing time for an entire set of blades can be significantly reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP88105239A 1987-05-04 1988-03-31 Procédé de fabrication par meulage de pièces profilées et aube de turbine ainsi fabriquée Expired - Lifetime EP0290773B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88105239T ATE63709T1 (de) 1987-05-04 1988-03-31 Verfahren zum herstellen von profilteilen durch schleifen und entsprechend hergestellte turbomaschinenschaufel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3714805 1987-05-04
DE3714805 1987-05-04

Publications (2)

Publication Number Publication Date
EP0290773A1 true EP0290773A1 (fr) 1988-11-17
EP0290773B1 EP0290773B1 (fr) 1991-05-22

Family

ID=6326799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88105239A Expired - Lifetime EP0290773B1 (fr) 1987-05-04 1988-03-31 Procédé de fabrication par meulage de pièces profilées et aube de turbine ainsi fabriquée

Country Status (5)

Country Link
US (2) US5205081A (fr)
EP (1) EP0290773B1 (fr)
JP (1) JPS63288631A (fr)
AT (1) ATE63709T1 (fr)
DE (1) DE3862891D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017990A1 (fr) * 1993-12-27 1995-07-06 United Technologies Corporation Procede pour realiser des fentes de fixation pour des aubes de turbine a gaz
DE102004021866A1 (de) * 2004-05-04 2005-12-01 Weigl Engineering Gmbh Verfahren zum Steuern einer Bearbeitungsmaschine
WO2014195634A1 (fr) * 2013-06-05 2014-12-11 Snecma Preforme d'aube de turbomachine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7769513B2 (en) 2002-09-03 2010-08-03 Automotive Technologies International, Inc. Image processing for vehicular applications applying edge detection technique
DE10035224A1 (de) * 2000-07-20 2002-01-31 Man Turbomasch Ag Ghh Borsig Verfahren und Rohling zum Herstellen von rhomboidischen Schaufeln für axiale Strömungsmaschinen
US7676062B2 (en) 2002-09-03 2010-03-09 Automotive Technologies International Inc. Image processing for vehicular applications applying image comparisons
US6883234B2 (en) 2002-10-07 2005-04-26 United Technologies Corporation Process for machining axial blade slots in turbine disks for jet engines
DE10328310A1 (de) * 2003-06-23 2005-01-13 Alstom Technology Ltd Verfahren zum Modifizieren der Kopplungsgeometrie bei Deckbandsegmenten von Turbinenlaufschaufeln
US7708619B2 (en) * 2006-05-23 2010-05-04 Saint-Gobain Abrasives, Inc. Method for grinding complex shapes
US7303461B1 (en) 2006-12-05 2007-12-04 Pratt & Whitney Canada Corp. Method of machining airfoils by disc tools
US7658665B2 (en) * 2007-10-09 2010-02-09 Saint-Gobain Abrasives, Inc. Techniques for cylindrical grinding
US7846010B2 (en) * 2008-09-10 2010-12-07 United Technologies Corporation Notched grind wheel and method to manufacture a rotor blade retention slot
AU2011285540B2 (en) 2010-08-06 2014-11-27 Saint-Gobain Abrasifs Abrasive tool and a method for finishing complex shapes in workpieces

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963320A (fr) * 1947-03-18 1950-07-05
FR2064491A5 (fr) * 1969-08-07 1971-07-23 Inst Vnii
DE2243863A1 (de) * 1972-07-03 1974-01-17 Stork Koninklijke Maschf Vorrichtung, insbesondere eine schleif- oder scheuervorrichtung, zum bearbeiten von schaufeln von stroemungsmaschinen
US3984213A (en) * 1974-11-06 1976-10-05 United Technologies Corporation Slow grinding technique
US4018010A (en) * 1974-05-09 1977-04-19 Finike Italiana Marposs-Soc. In Accomandita Semplice Di Marlo Possati & C. Method and relative apparatus for controlling and regulating the working cycles of a machine tool
US4031368A (en) * 1972-04-17 1977-06-21 Verkstadsteknik Ab Adaptive control of cutting machining operations
DE3221395A1 (de) * 1982-06-05 1983-12-08 Werner Gerhard 6113 Babenhausen Lang Doppelspindel-schleifmaschine
US4420685A (en) * 1979-08-24 1983-12-13 Hitachi Seiko, Ltd. Method and equipment for detecting tool failure

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606406A (en) * 1950-03-21 1952-08-12 Niles Bement Pond Co Blade finishing machine
US2656651A (en) * 1950-10-10 1953-10-27 Ex Cell O Corp Abrading machine
DE1946749A1 (de) * 1968-09-19 1970-05-06 Toyoda Machine Works Ltd Verfahren und Vorrichtung zum Schleifen mit hoher Schleifgeschwindigkeit
SU484977A1 (ru) * 1974-03-26 1975-09-25 Одесское специальное конструкторское бюро специальных станков Способ автоматической настройки на оптимальный режим шлифовани
JPS5830110B2 (ja) * 1974-09-03 1983-06-27 セイコ−セイキ カブシキガイシヤ ケンサクカコウセイギヨソウチ
US4118900A (en) * 1976-03-29 1978-10-10 Seiko Seiki Kabushiki Kaisha Method for controlling grinding process
US4117634A (en) * 1977-01-31 1978-10-03 Seiko Seiki Kabushiki Kaisha Controlling method for a grinding machine
GB1596635A (en) * 1977-07-26 1981-08-26 Newall Eng Cam machining
US4193314A (en) * 1978-03-22 1980-03-18 General Motors Corporation Timing chain snubber
DE3005606C2 (de) * 1980-02-15 1992-08-27 Hauni-Werke Körber & Co KG, 2050 Hamburg Numerisch gesteuerte Maschine zum Schleifen mehrerer unterschiedlicher Flächen an ein- und demselben Werkstück
US4553355A (en) * 1981-03-30 1985-11-19 Energy-Adaptive Grinding, Inc. Grinding control methods and apparatus
US4827675A (en) * 1987-07-09 1989-05-09 United Technologies Corporation Method and apparatus for forming a curved slot

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR963320A (fr) * 1947-03-18 1950-07-05
FR2064491A5 (fr) * 1969-08-07 1971-07-23 Inst Vnii
US4031368A (en) * 1972-04-17 1977-06-21 Verkstadsteknik Ab Adaptive control of cutting machining operations
DE2243863A1 (de) * 1972-07-03 1974-01-17 Stork Koninklijke Maschf Vorrichtung, insbesondere eine schleif- oder scheuervorrichtung, zum bearbeiten von schaufeln von stroemungsmaschinen
US4018010A (en) * 1974-05-09 1977-04-19 Finike Italiana Marposs-Soc. In Accomandita Semplice Di Marlo Possati & C. Method and relative apparatus for controlling and regulating the working cycles of a machine tool
US3984213A (en) * 1974-11-06 1976-10-05 United Technologies Corporation Slow grinding technique
US4420685A (en) * 1979-08-24 1983-12-13 Hitachi Seiko, Ltd. Method and equipment for detecting tool failure
DE3221395A1 (de) * 1982-06-05 1983-12-08 Werner Gerhard 6113 Babenhausen Lang Doppelspindel-schleifmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
AVIATION WEEK & SPACE TECHNOLOGY, 22. Dezember 1986, Seiten 68-69; D.A. BROWN: "Rolls profits from equipment for automated blade grinding" *
WERKSTATT UND BETRIEB, Band 118, Nr. 3, März 1985, Seiten 149-152, München, DE; H. HAENITH et al.: "Schleifen und Drehen von Turbinenschaufeln in einer Aufspannung" *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017990A1 (fr) * 1993-12-27 1995-07-06 United Technologies Corporation Procede pour realiser des fentes de fixation pour des aubes de turbine a gaz
DE102004021866A1 (de) * 2004-05-04 2005-12-01 Weigl Engineering Gmbh Verfahren zum Steuern einer Bearbeitungsmaschine
WO2014195634A1 (fr) * 2013-06-05 2014-12-11 Snecma Preforme d'aube de turbomachine
FR3006616A1 (fr) * 2013-06-05 2014-12-12 Snecma Preforme d'aube de turbomachine
CN105263650A (zh) * 2013-06-05 2016-01-20 斯奈克玛 涡轮引擎叶片预成形件
CN105263650B (zh) * 2013-06-05 2017-07-25 斯奈克玛 涡轮引擎叶片预成形件
US9833834B2 (en) 2013-06-05 2017-12-05 Snecma Turbine engine blade preform
RU2660436C2 (ru) * 2013-06-05 2018-07-06 Снекма Заготовка турбинной лопатки для двигателя

Also Published As

Publication number Publication date
JPS63288631A (ja) 1988-11-25
US5330326A (en) 1994-07-19
EP0290773B1 (fr) 1991-05-22
ATE63709T1 (de) 1991-06-15
US5205081A (en) 1993-04-27
DE3862891D1 (de) 1991-06-27

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