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EP2399693A3 - Contoured metallic casting core - Google Patents

Contoured metallic casting core Download PDF

Info

Publication number
EP2399693A3
EP2399693A3 EP11250408A EP11250408A EP2399693A3 EP 2399693 A3 EP2399693 A3 EP 2399693A3 EP 11250408 A EP11250408 A EP 11250408A EP 11250408 A EP11250408 A EP 11250408A EP 2399693 A3 EP2399693 A3 EP 2399693A3
Authority
EP
European Patent Office
Prior art keywords
blank
casting core
metallic casting
thickness
leading portion
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
EP11250408A
Other languages
German (de)
French (fr)
Other versions
EP2399693B1 (en
EP2399693A2 (en
Inventor
Daniel A. Snyder
Keith A. Santeler
Amanda J. Learned
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of EP2399693A2 publication Critical patent/EP2399693A2/en
Publication of EP2399693A3 publication Critical patent/EP2399693A3/en
Application granted granted Critical
Publication of EP2399693B1 publication Critical patent/EP2399693B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • B22C9/103—Multipart cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles

Landscapes

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

Abstract

A method for manufacturing an investment casting core uses a metallic blank (60) having a thickness between parallel first and second faces less than a width and length transverse thereto. The blank is locally thinned from at least one of the first and second faces (82, 84). The local thinning forms a taper on a leading portion of the RMC. The blank is through-cut across the thickness. The blank is inserted into the leading portion into a slot in a pre-formed ceramic core.
EP11250408.9A 2010-06-25 2011-03-31 Contoured metallic casting core Active EP2399693B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/823,165 US20110315336A1 (en) 2010-06-25 2010-06-25 Contoured Metallic Casting Core

Publications (3)

Publication Number Publication Date
EP2399693A2 EP2399693A2 (en) 2011-12-28
EP2399693A3 true EP2399693A3 (en) 2012-07-25
EP2399693B1 EP2399693B1 (en) 2019-05-01

Family

ID=44501655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11250408.9A Active EP2399693B1 (en) 2010-06-25 2011-03-31 Contoured metallic casting core

Country Status (2)

Country Link
US (1) US20110315336A1 (en)
EP (1) EP2399693B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130280093A1 (en) 2012-04-24 2013-10-24 Mark F. Zelesky Gas turbine engine core providing exterior airfoil portion
US20140102656A1 (en) 2012-10-12 2014-04-17 United Technologies Corporation Casting Cores and Manufacture Methods
US20160001354A1 (en) * 2013-03-01 2016-01-07 United Technologies Corporation Gas turbine engine component manufacturing method and core for making same
SG11201601945YA (en) * 2013-10-24 2016-04-28 United Technologies Corp Lost core molding cores for forming cooling passages
EP3086893B1 (en) * 2013-12-23 2019-07-24 United Technologies Corporation Lost core structural frame

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423372A (en) * 1993-12-27 1995-06-13 Ford Motor Company Joining sand cores for making castings
US6942007B2 (en) * 2000-07-21 2005-09-13 Montupet Sa Equipment for molding foundry parts with improved means positioning sand cores, and related positioning method
EP1634665A2 (en) * 2004-09-09 2006-03-15 United Technologies Corporation Composite core for use in precision investment casting
EP1854567A2 (en) * 2006-05-12 2007-11-14 United Technologies Corporation Contoured metallic casting core
EP2189230A1 (en) * 2008-11-21 2010-05-26 United Technologies Corporation Castings, casting cores and methods
EP2191911A1 (en) * 2008-11-17 2010-06-02 United Technologies Corporation Investment casting cores and methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU677903B2 (en) * 1994-06-01 1997-05-08 Toyota Jidosha Kabushiki Kaisha Casting method with improved resin core removing step and apparatus for performing the method
US6637500B2 (en) 2001-10-24 2003-10-28 United Technologies Corporation Cores for use in precision investment casting
US6929054B2 (en) 2003-12-19 2005-08-16 United Technologies Corporation Investment casting cores

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5423372A (en) * 1993-12-27 1995-06-13 Ford Motor Company Joining sand cores for making castings
US6942007B2 (en) * 2000-07-21 2005-09-13 Montupet Sa Equipment for molding foundry parts with improved means positioning sand cores, and related positioning method
EP1634665A2 (en) * 2004-09-09 2006-03-15 United Technologies Corporation Composite core for use in precision investment casting
EP1854567A2 (en) * 2006-05-12 2007-11-14 United Technologies Corporation Contoured metallic casting core
EP2191911A1 (en) * 2008-11-17 2010-06-02 United Technologies Corporation Investment casting cores and methods
EP2189230A1 (en) * 2008-11-21 2010-05-26 United Technologies Corporation Castings, casting cores and methods

Also Published As

Publication number Publication date
EP2399693B1 (en) 2019-05-01
EP2399693A2 (en) 2011-12-28
US20110315336A1 (en) 2011-12-29

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