EP1193006A3 - Process for manufacturing a cooled precision casting - Google Patents

Process for manufacturing a cooled precision casting Download PDF

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Publication number
EP1193006A3
EP1193006A3 EP01115998A EP01115998A EP1193006A3 EP 1193006 A3 EP1193006 A3 EP 1193006A3 EP 01115998 A EP01115998 A EP 01115998A EP 01115998 A EP01115998 A EP 01115998A EP 1193006 A3 EP1193006 A3 EP 1193006A3
Authority
EP
European Patent Office
Prior art keywords
manufacturing
precision casting
casting
cooled
wax
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
EP01115998A
Other languages
German (de)
French (fr)
Other versions
EP1193006A2 (en
EP1193006B1 (en
Inventor
Gordon Anderson
Peter Marx
Shailendra Dr. Naik
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.)
General Electric Technology GmbH
Original Assignee
Alstom Schweiz 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 Alstom Schweiz AG filed Critical Alstom Schweiz AG
Publication of EP1193006A2 publication Critical patent/EP1193006A2/en
Publication of EP1193006A3 publication Critical patent/EP1193006A3/en
Application granted granted Critical
Publication of EP1193006B1 publication Critical patent/EP1193006B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02—Lost patterns
    • 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
    • Y10T29/49336—Blade making
    • 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
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49989—Followed by cutting or removing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines gekühlten Gussteils (1) einer thermischen Turbomaschine mit einem bekannten Gussverfahren. Zwischen einem Wachsmodell (10) des Gussteils (1) und einem keramischen Kern (6) wird oberhalb einer Stufe (7) von Hand eine Wachdichtung (8) lediglich auf einem zusätzlichen Absatz (9) angebracht. Das Material, welches während des Giessverfahrens durch den Absatz (9) und die Wachsdichtung (8) an dieser Stelle entsteht, kann geschliffen werden, ohne dass sich Unebenheiten an der Stufe (7) bilden. Das Schweissen oder Löten einer Kühlplatte auf die Stufe (7) wird dadurch vereinfacht.

Figure 00000001
The invention relates to a method for producing a cooled casting (1) of a thermal turbomachine using a known casting method. Between a wax model (10) of the cast part (1) and a ceramic core (6), a wax seal (8) is applied by hand only on an additional shoulder (9) above a step (7). The material that is created during the casting process by the shoulder (9) and the wax seal (8) at this point can be sanded without any unevenness on the step (7). This simplifies the welding or soldering of a cooling plate to step (7).
Figure 00000001
EP01115998A 2000-08-07 2001-06-30 Process for manufacturing a cooled precision casting Expired - Lifetime EP1193006B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10038453A DE10038453A1 (en) 2000-08-07 2000-08-07 Production of a cooled cast part of a thermal turbo machine comprises applying a wax seal to an offset between a wax model a core before producing the casting mold, the offset being located above the step to the side of the core.
DE10038453 2000-08-07

Publications (3)

Publication Number Publication Date
EP1193006A2 EP1193006A2 (en) 2002-04-03
EP1193006A3 true EP1193006A3 (en) 2003-05-21
EP1193006B1 EP1193006B1 (en) 2005-08-31

Family

ID=7651569

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01115998A Expired - Lifetime EP1193006B1 (en) 2000-08-07 2001-06-30 Process for manufacturing a cooled precision casting

Country Status (3)

Country Link
US (1) US6435256B1 (en)
EP (1) EP1193006B1 (en)
DE (2) DE10038453A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004044783A2 (en) * 2002-11-08 2004-05-27 Crossroads Systems, Inc. System and method for controlling access to media libraries
DE10255346A1 (en) * 2002-11-28 2004-06-09 Alstom Technology Ltd Method of making a turbine blade
GB0413027D0 (en) * 2004-06-11 2004-07-14 Rolls Royce Plc A wax recovery method
US20080257517A1 (en) * 2005-12-16 2008-10-23 General Electric Company Mold assembly for use in a liquid metal cooled directional solidification furnace
US9403208B2 (en) 2010-12-30 2016-08-02 United Technologies Corporation Method and casting core for forming a landing for welding a baffle inserted in an airfoil
FR3035604B1 (en) * 2015-04-30 2023-01-13 Snecma PATTERN MANUFACTURING PROCESS FOR LOST PATTERN FOUNDRY
US10717130B2 (en) 2017-02-22 2020-07-21 General Electric Company Method of manufacturing turbine airfoil and tip component thereof
US10702958B2 (en) 2017-02-22 2020-07-07 General Electric Company Method of manufacturing turbine airfoil and tip component thereof using ceramic core with witness feature
US20180238173A1 (en) * 2017-02-22 2018-08-23 General Electric Company Method of manufacturing turbine airfoil and tip component thereof
US11154956B2 (en) 2017-02-22 2021-10-26 General Electric Company Method of repairing turbine component using ultra-thin plate
US10610933B2 (en) * 2017-02-22 2020-04-07 General Electric Company Method of manufacturing turbine airfoil with open tip casting and tip component thereof
US10625342B2 (en) 2017-02-22 2020-04-21 General Electric Company Method of repairing turbine component
US20190309629A1 (en) * 2018-04-05 2019-10-10 United Technologies Corporation Turbine blades and vanes for gas turbine engine
US10830354B2 (en) 2018-05-18 2020-11-10 General Electric Company Protection system with gasket for ceramic core processing operation and related method
CN112008039B (en) * 2020-08-26 2024-06-04 合肥天鹅制冷科技有限公司 Liquid cooling device used after wax pattern molding

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177537A (en) * 1962-12-27 1965-04-13 Prec Metalsmiths Inc Methods and apparatus for forming investment molds and mold produced thereby
US3648760A (en) * 1970-04-27 1972-03-14 Abraham J Cooper Precision investment casting apparatus
DE3234658A1 (en) * 1981-10-23 1983-05-05 Howmet Turbine Components Corp., 06830 Greenwich, Conn. METHOD FOR FORMING A CRACK-FREE CONNECTION BETWEEN THERMOPLASTIC SOLID BODIES
US5489194A (en) * 1990-09-14 1996-02-06 Hitachi, Ltd. Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade
DE3813287C2 (en) * 1987-06-03 1996-09-19 Rolls Royce Plc Process for the manufacture of a metal object
DE19726111C1 (en) * 1997-06-20 1998-11-12 Mtu Muenchen Gmbh Process for the production of a turbomachine blade by casting

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3494709A (en) * 1965-05-27 1970-02-10 United Aircraft Corp Single crystal metallic part
US3690367A (en) * 1968-07-05 1972-09-12 Anadite Inc Apparatus for the restructuring of metals
US3763926A (en) * 1971-09-15 1973-10-09 United Aircraft Corp Apparatus for casting of directionally solidified articles
US5296308A (en) * 1992-08-10 1994-03-22 Howmet Corporation Investment casting using core with integral wall thickness control means
FR2714858B1 (en) * 1994-01-12 1996-02-09 Snecma Method for manufacturing a shell mold made of ceramic material for a lost model foundry.
DE19539770A1 (en) * 1995-06-20 1997-01-02 Abb Research Ltd Process for producing a directionally solidified casting and device for carrying out this process
EP0894558A1 (en) * 1997-07-29 1999-02-03 Siemens Aktiengesellschaft Turbine blade and method of fabrication of a turbine blade

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177537A (en) * 1962-12-27 1965-04-13 Prec Metalsmiths Inc Methods and apparatus for forming investment molds and mold produced thereby
US3648760A (en) * 1970-04-27 1972-03-14 Abraham J Cooper Precision investment casting apparatus
DE3234658A1 (en) * 1981-10-23 1983-05-05 Howmet Turbine Components Corp., 06830 Greenwich, Conn. METHOD FOR FORMING A CRACK-FREE CONNECTION BETWEEN THERMOPLASTIC SOLID BODIES
DE3813287C2 (en) * 1987-06-03 1996-09-19 Rolls Royce Plc Process for the manufacture of a metal object
US5489194A (en) * 1990-09-14 1996-02-06 Hitachi, Ltd. Gas turbine, gas turbine blade used therefor and manufacturing method for gas turbine blade
DE19726111C1 (en) * 1997-06-20 1998-11-12 Mtu Muenchen Gmbh Process for the production of a turbomachine blade by casting

Also Published As

Publication number Publication date
DE50107262D1 (en) 2005-10-06
US20020029863A1 (en) 2002-03-14
US6435256B1 (en) 2002-08-20
DE10038453A1 (en) 2002-02-21
EP1193006A2 (en) 2002-04-03
EP1193006B1 (en) 2005-08-31

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