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GB2468083A - Turbine airfoil casting method - Google Patents

Turbine airfoil casting method Download PDF

Info

Publication number
GB2468083A
GB2468083A GB1010159A GB201010159A GB2468083A GB 2468083 A GB2468083 A GB 2468083A GB 1010159 A GB1010159 A GB 1010159A GB 201010159 A GB201010159 A GB 201010159A GB 2468083 A GB2468083 A GB 2468083A
Authority
GB
United Kingdom
Prior art keywords
core
airfoil
cavity
wall
core support
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.)
Withdrawn
Application number
GB1010159A
Other versions
GB201010159D0 (en
Inventor
Todd Jay Rockstroh
Sudhir K Tewari
Joseph Giancarlo Sabato
Donald Brett Desander
Mark Douglas Gledhill
David Henry Abbott
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 Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB201010159D0 publication Critical patent/GB201010159D0/en
Publication of GB2468083A publication Critical patent/GB2468083A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings
    • 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
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • 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
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/20—Manufacture essentially without removing material
    • F05D2230/21—Manufacture essentially without removing material by casting
    • F05D2230/211—Manufacture essentially without removing material by casting by precision casting, e.g. microfusing or investment casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/202—Heat transfer, e.g. cooling by film cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/221—Improvement of heat transfer
    • F05D2260/2212—Improvement of heat transfer by creating turbulence

Landscapes

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

Abstract

A method for making a turbine airfoil includes: (a) providing a mold having. (i) a core, (ii) an outer shell surrounding the core such that the core and the outer shell cooperatively define a cavity in the shape of an airfoil having at least one outer wall; and (Ui ) a core support extending from the core to the outer shell through a portion of the cavity that defines the at least one sidewalk (b) introducing molten metal alloy into the cavity and surrounding the core support; (c) solidifying the alloy to form an airfoil casting having at least one outer wall which has at least one core support opening passing therethrough; (d) removing the mold so as to expose the airfoil; and (e) sealing the at least one core support opening in the airfoil with a metal alloy metallurgically bonded to the at least one outer wall.
GB1010159A 2007-12-31 2008-12-12 Turbine airfoil casting method Withdrawn GB2468083A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/968,022 US20090165988A1 (en) 2007-12-31 2007-12-31 Turbine airfoil casting method
PCT/US2008/086569 WO2009085654A1 (en) 2007-12-31 2008-12-12 Turbine airfoil casting method

Publications (2)

Publication Number Publication Date
GB201010159D0 GB201010159D0 (en) 2010-07-28
GB2468083A true GB2468083A (en) 2010-08-25

Family

ID=40342316

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1010159A Withdrawn GB2468083A (en) 2007-12-31 2008-12-12 Turbine airfoil casting method

Country Status (6)

Country Link
US (1) US20090165988A1 (en)
JP (1) JP2011509185A (en)
CA (1) CA2709940A1 (en)
DE (1) DE112008003545T5 (en)
GB (1) GB2468083A (en)
WO (1) WO2009085654A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8752609B2 (en) * 2009-11-05 2014-06-17 Dresser-Rand Company One-piece manufacturing process
US9550230B2 (en) * 2011-09-16 2017-01-24 United Technologies Corporation Mold for casting a workpiece that includes one or more casting pins
EP2931459B1 (en) * 2012-12-14 2019-02-06 United Technologies Corporation Method of casting hybrid turbine blade for improved engine performance or architecture
EP2931458B1 (en) 2012-12-14 2019-02-06 United Technologies Corporation Multi-shot casting
US9057276B2 (en) 2013-02-06 2015-06-16 Siemens Aktiengesellschaft Twisted gas turbine engine airfoil having a twisted rib
US9797258B2 (en) * 2013-10-23 2017-10-24 General Electric Company Turbine bucket including cooling passage with turn
EP3096911B1 (en) 2014-01-21 2019-12-25 United Technologies Corporation Method for forming single crystal components using additive manufacturing and re-melt
US9435211B2 (en) 2014-05-09 2016-09-06 United Technologies Corporation Method for forming components using additive manufacturing and re-melt
FR3037972B1 (en) * 2015-06-29 2017-07-21 Snecma PROCESS SIMPLIFYING THE CORE USED FOR THE MANUFACTURE OF A TURBOMACHINE BLADE
FR3037830B1 (en) * 2015-06-29 2024-02-16 Snecma MOLDING ASSEMBLY FOR A TURBOMACHINE BLADE, INCLUDING A LARGE SECTION RELIEF PORTION
US10053989B2 (en) * 2015-12-21 2018-08-21 General Electric Company Cooling circuit for a multi-wall blade
US10807154B2 (en) 2016-12-13 2020-10-20 General Electric Company Integrated casting core-shell structure for making cast component with cooling holes in inaccessible locations
US11813669B2 (en) 2016-12-13 2023-11-14 General Electric Company Method for making an integrated core-shell structure
US20180161853A1 (en) * 2016-12-13 2018-06-14 General Electric Company Integrated casting core-shell structure with floating tip plenum
US20180161866A1 (en) 2016-12-13 2018-06-14 General Electric Company Multi-piece integrated core-shell structure for making cast component
WO2019046036A1 (en) * 2017-08-28 2019-03-07 Siemens Aktiengesellschaft Method for making a turbine airfoil
DE102021204782A1 (en) 2021-05-11 2022-11-17 Siemens Energy Global GmbH & Co. KG Improved blade tip in new or repaired part and process

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249300A1 (en) * 2001-04-12 2002-10-16 General Electric Company Laser repair method for nickel base superalloys with high gamma prime content
EP1396299A1 (en) * 2002-09-06 2004-03-10 Siemens Aktiengesellschaft Process for filling up a hole in a component
EP1561536A1 (en) * 2004-02-03 2005-08-10 Siemens Aktiengesellschaft Process of brazing repairing of a part having a base material with oriented microstructure
EP1775054A1 (en) * 2005-10-14 2007-04-18 General Electric Company Weld closure of through-holes in a nickel-base superalloy hollow airfoil

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659645A (en) * 1965-08-09 1972-05-02 Trw Inc Means for supporting core in open ended shell mold
US5810552A (en) * 1992-02-18 1998-09-22 Allison Engine Company, Inc. Single-cast, high-temperature, thin wall structures having a high thermal conductivity member connecting the walls and methods of making the same
US5584663A (en) 1994-08-15 1996-12-17 General Electric Company Environmentally-resistant turbine blade tip
DE19905887C1 (en) * 1999-02-11 2000-08-24 Abb Alstom Power Ch Ag Hollow cast component
US6454156B1 (en) * 2000-06-23 2002-09-24 Siemens Westinghouse Power Corporation Method for closing core printout holes in superalloy gas turbine blades

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249300A1 (en) * 2001-04-12 2002-10-16 General Electric Company Laser repair method for nickel base superalloys with high gamma prime content
EP1396299A1 (en) * 2002-09-06 2004-03-10 Siemens Aktiengesellschaft Process for filling up a hole in a component
EP1561536A1 (en) * 2004-02-03 2005-08-10 Siemens Aktiengesellschaft Process of brazing repairing of a part having a base material with oriented microstructure
EP1775054A1 (en) * 2005-10-14 2007-04-18 General Electric Company Weld closure of through-holes in a nickel-base superalloy hollow airfoil

Also Published As

Publication number Publication date
US20090165988A1 (en) 2009-07-02
JP2011509185A (en) 2011-03-24
CA2709940A1 (en) 2009-07-09
GB201010159D0 (en) 2010-07-28
WO2009085654A1 (en) 2009-07-09
DE112008003545T5 (en) 2010-12-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)