EP0036202A2 - Procédé de fabrication de rotor de turbine - Google Patents

Procédé de fabrication de rotor de turbine Download PDF

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Publication number
EP0036202A2
EP0036202A2 EP81101907A EP81101907A EP0036202A2 EP 0036202 A2 EP0036202 A2 EP 0036202A2 EP 81101907 A EP81101907 A EP 81101907A EP 81101907 A EP81101907 A EP 81101907A EP 0036202 A2 EP0036202 A2 EP 0036202A2
Authority
EP
European Patent Office
Prior art keywords
ceramic core
capsule
sheet metal
turbo
hip
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
EP81101907A
Other languages
German (de)
English (en)
Other versions
EP0036202A3 (en
EP0036202B1 (fr
Inventor
Wilhelm Hoffmüller
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.)
MTU Aero Engines AG
Original Assignee
MTU Motoren und Turbinen Union Muenchen GmbH
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 MTU Motoren und Turbinen Union Muenchen GmbH filed Critical MTU Motoren und Turbinen Union Muenchen GmbH
Publication of EP0036202A2 publication Critical patent/EP0036202A2/fr
Publication of EP0036202A3 publication Critical patent/EP0036202A3/de
Application granted granted Critical
Publication of EP0036202B1 publication Critical patent/EP0036202B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1258—Container manufacturing
    • B22F3/1291—Solid insert eliminated after consolidation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/14—Both compacting and sintering simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/04—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of turbine blades

Definitions

  • the invention relates to a capsule for hot isostatic pressing (HIP) of highly stressed and complicatedly shaped workpieces for turbomachinery.
  • HIP hot isostatic pressing
  • the object of the present invention is therefore to provide a generic capsule which enables hot isostatic pressing of workpieces of the most complicated shape and has such high dimensional accuracy that the workpiece produced after hot isostatic pressing requires little or no reworking.
  • the effort for the production of the capsule itself should be as low as possible.
  • a ceramic core that is open on one side is enclosed with the negative contour of the workpiece by a sheet metal outer skin that keeps this distance on the open side of the ceramic core, but is present on the other sides.
  • the main advantage of the design of a capsule according to the invention is that the shape of the ceramic core does not change during HIP, so that the shape of the capsule filled with metal powder only changes on the open side of the ceramic core. If the complex contours are placed in the ceramic core, an exact impression is automatically obtained, although the high pressures can still be transferred to the powder to be pressed via the open side of the ceramic core.
  • the sheet metal outer skin is used to transmit the pressures and can be easily closed by welding or soldering.
  • Argon is preferably used as the pressure transfer medium during hot pressing. After pressing, the finished workpiece is exposed by first removing the sheet metal skin and then the ceramic core be removed, the latter preferably being carried out mechanically, but chemical ablation of the ceramic core is also possible.
  • a capsule according to the invention can be used particularly advantageously for the production of a turbo rotor with radial blading, the ceramic core then having the negative contour of the wheel hub and the blading on the blade side.
  • the manufacture of such turbo rotors which usually consist of titanium or titanium-based alloys, is considerably simplified by a capsule designed according to the invention.
  • the process temperatures in hot pressing are between 950 and 1000 * C and the pressures in the range between 1500 and 3000 bar. After pressing in a capsule designed according to the invention and after removing this capsule, the turbo rotor is finished, but this only affects the hub surface facing away from the blading.
  • the invention further relates to a method for hot isostatic pressing of turbo rotors, in particular of radial wheels using a capsule described above, and is characterized in that prefabricated metal blades are inserted into the blade matrices of the ceramic core and the rest of the capsule cavity is then filled with metal powder, after which the capsule is closed and hot isostatically pressed.
  • this method has the advantage that the prefabricated blades can be made of a different material than the hub body of the rotor, which may result in more favorable operating properties of the corresponding rotor.
  • the capsule shown in longitudinal section in FIG. 1 for the hot isostatic pressing essentially consists of a ceramic core 1, which has the negative contour of a radial turbine wheel with a hub area 12 and blade matrices 11, the upper side of the ceramic core being open.
  • the ceramic core 1 is enclosed by a sheet metal outer skin 2, which rests on the base and the side surfaces of the ceramic core 1, while it maintains a distance A from the top of the ceramic core, which is necessary because the volume is reduced during the pressing process.
  • the distance A is precisely matched to the compression to be expected.
  • On the upper side of the sheet metal outer skin 2 there is a filling opening 3 in the middle for the powdery material of the compact, which is closed pressure-tight before the pressing process.
  • the blade matrices 11 of the ceramic core 1 are shown as a straight, flat column, which accordingly serves to produce a rotor with straight, flat blades.
  • curved columns can also be provided, so that curved blades of the rotor result accordingly.
  • the partial section according to FIG. 3 serves to illustrate a manufacturing process for a turbo rotor, according to which prefabricated sheet metal blades, one of which is shown in cross section and provided with the reference symbol 21, are inserted into the blade matrices of the ceramic core 1 and then the rest of the capsule cavity , in particular the hub area 12 is filled with metal powder.
  • the blade 21 is tapered at its root 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP81101907A 1980-03-18 1981-03-14 Procédé de fabrication de rotor de turbine Expired EP0036202B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3010299A DE3010299C2 (de) 1980-03-18 1980-03-18 Kapsel für das heißisostatische Pressen und Verfahren zum heißisostatischen Pressen unter Verwendung der Kapsel
DE3010299 1980-03-18

Publications (3)

Publication Number Publication Date
EP0036202A2 true EP0036202A2 (fr) 1981-09-23
EP0036202A3 EP0036202A3 (en) 1981-10-07
EP0036202B1 EP0036202B1 (fr) 1984-06-13

Family

ID=6097508

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101907A Expired EP0036202B1 (fr) 1980-03-18 1981-03-14 Procédé de fabrication de rotor de turbine

Country Status (3)

Country Link
US (1) US4383809A (fr)
EP (1) EP0036202B1 (fr)
DE (1) DE3010299C2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086417A2 (fr) * 1982-02-13 1983-08-24 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Récipient pour la compression isostatique à chaud de pièces complexes subissant des contraintes élevées pour des turbomachines
EP0133515A2 (fr) * 1983-08-11 1985-02-27 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Procédé de fabrication d'ébauches par compression isostatique à froid
WO1987005241A1 (fr) * 1986-03-04 1987-09-11 Asea Stal Ab Procede de fabrication de produits metalliques a partir d'une poudre par compression isostatique a chaud en utilisant des noyaux de ceramique
WO1990006827A1 (fr) * 1988-12-21 1990-06-28 Abb Stal Ab Procede de fabrication d'anneaux ou de disques presentant un rebord a lames ou a pales
EP1547707A2 (fr) * 2003-12-24 2005-06-29 ROLLS-ROYCE plc Procédé et installation pour la préparation d'une ébauche par mise en forme de poudre

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3099829B2 (ja) * 1990-08-08 2000-10-16 株式会社神戸製鋼所 等方圧加圧処理用カプセルの製作方法
DE4219469A1 (de) * 1992-06-13 1993-12-16 Asea Brown Boveri Hohen Temperaturen aussetzbares Bauteil, insbesondere Turbinenschaufel, und Verfahren zur Herstellung dieses Bauteils
DE4219470A1 (de) * 1992-06-13 1993-12-16 Asea Brown Boveri Bauteil für hohe Temperaturen, insbesondere Turbinenschaufel, und Verfahren zur Herstellung dieses Bauteils
US5593085A (en) * 1995-03-22 1997-01-14 Solar Turbines Incorporated Method of manufacturing an impeller assembly
US5972521A (en) * 1998-10-01 1999-10-26 Mcdonnell Douglas Corporation Expanded metal structure and method of making same
US6247638B1 (en) * 1999-04-28 2001-06-19 Allison Advanced Development Company Selectively reinforced member and method of manufacture
US9114488B2 (en) * 2006-11-21 2015-08-25 Honeywell International Inc. Superalloy rotor component and method of fabrication
GB2459653A (en) * 2008-04-29 2009-11-04 Rolls Royce Plc Manufacture of an article by hot isostatic pressing
DE102008056336A1 (de) * 2008-11-07 2010-05-12 Mtu Aero Engines Gmbh Reparaturverfahren
GB0921896D0 (en) * 2009-12-16 2010-01-27 Rolls Royce Plc A method of manufacturing a component
US8778259B2 (en) 2011-05-25 2014-07-15 Gerhard B. Beckmann Self-renewing cutting surface, tool and method for making same using powder metallurgy and densification techniques
RU2688985C2 (ru) * 2014-05-26 2019-05-23 Нуово Пиньоне СРЛ Способ изготовления компонента турбомашины
GB201415190D0 (en) * 2014-08-27 2014-10-08 Castings Technology Internat Ltd A ceramic and metal mould
DE102021006196A1 (de) 2021-12-16 2023-06-22 Diehl Defence Gmbh & Co. Kg Verfahren zur Herstellung einer Einlage für eine Hohlladung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279917A (en) * 1963-11-20 1966-10-18 Ambrose H Ballard High temperature isostatic pressing
DE2362469A1 (de) * 1973-12-15 1975-06-19 Daimler Benz Ag Verfahren zum verbinden keramischer bauteile
FR2353355A1 (fr) * 1976-06-01 1977-12-30 Special Metals Corp Procede et appareil pour former des pieces frittees en superalliages
FR2385475A1 (fr) * 1977-04-01 1978-10-27 Rolls Royce Perfectionnements aux produits formes par la metallurgie des poudres et procede pour leur mise en oeuvre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3559236A (en) * 1969-12-02 1971-02-02 Glass Reinforced Engineered Ma Apparatus for molding plastic
GB1321451A (en) * 1970-01-15 1973-06-27 Foseco Int Production of refractory articles
US4008023A (en) * 1972-03-27 1977-02-15 United Technologies Corporation Mold pack for making metal powder articles
US4217089A (en) * 1975-02-03 1980-08-12 Gte Products Corporation Photoflash lamp
FR2302287A1 (fr) * 1975-02-27 1976-09-24 Commissariat Energie Atomique Procede et appareillage de frittage sous charge
US4142888A (en) * 1976-06-03 1979-03-06 Kelsey-Hayes Company Container for hot consolidating powder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279917A (en) * 1963-11-20 1966-10-18 Ambrose H Ballard High temperature isostatic pressing
DE2362469A1 (de) * 1973-12-15 1975-06-19 Daimler Benz Ag Verfahren zum verbinden keramischer bauteile
FR2353355A1 (fr) * 1976-06-01 1977-12-30 Special Metals Corp Procede et appareil pour former des pieces frittees en superalliages
FR2385475A1 (fr) * 1977-04-01 1978-10-27 Rolls Royce Perfectionnements aux produits formes par la metallurgie des poudres et procede pour leur mise en oeuvre

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086417A2 (fr) * 1982-02-13 1983-08-24 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Récipient pour la compression isostatique à chaud de pièces complexes subissant des contraintes élevées pour des turbomachines
EP0086417A3 (fr) * 1982-02-13 1984-06-13 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Récipient pour la compression isostatique à chaud de pièces complexes subissant des contraintes élevées pour des turbomachines
EP0133515A2 (fr) * 1983-08-11 1985-02-27 Mtu Motoren- Und Turbinen-Union MàœNchen Gmbh Procédé de fabrication d'ébauches par compression isostatique à froid
EP0133515A3 (en) * 1983-08-11 1985-04-17 Mtu Muenchen Gmbh Process for manufacturing preforms by cold isostatic pressing
WO1987005241A1 (fr) * 1986-03-04 1987-09-11 Asea Stal Ab Procede de fabrication de produits metalliques a partir d'une poudre par compression isostatique a chaud en utilisant des noyaux de ceramique
US4855103A (en) * 1986-03-04 1989-08-08 Asea Stal Ab Method for manufacturing metallic products from powder by hot isostatic pressing using ceramic cores
WO1990006827A1 (fr) * 1988-12-21 1990-06-28 Abb Stal Ab Procede de fabrication d'anneaux ou de disques presentant un rebord a lames ou a pales
EP1547707A2 (fr) * 2003-12-24 2005-06-29 ROLLS-ROYCE plc Procédé et installation pour la préparation d'une ébauche par mise en forme de poudre
EP1547707A3 (fr) * 2003-12-24 2006-11-02 ROLLS-ROYCE plc Procédé et installation pour la préparation d'une ébauche par mise en forme de poudre

Also Published As

Publication number Publication date
EP0036202A3 (en) 1981-10-07
DE3010299C2 (de) 1981-07-30
EP0036202B1 (fr) 1984-06-13
DE3010299B1 (de) 1980-11-13
US4383809A (en) 1983-05-17

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