FR2288584A1 - Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades - Google Patents

Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades

Info

Publication number
FR2288584A1
FR2288584A1 FR7435639A FR7435639A FR2288584A1 FR 2288584 A1 FR2288584 A1 FR 2288584A1 FR 7435639 A FR7435639 A FR 7435639A FR 7435639 A FR7435639 A FR 7435639A FR 2288584 A1 FR2288584 A1 FR 2288584A1
Authority
FR
France
Prior art keywords
block
mould
plastic
guide block
turbine blades
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Withdrawn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
FR7435639A
Other languages
French (fr)
Inventor
Walter E Mikulski
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.)
Raytheon Technologies Corp
Original Assignee
United Aircraft 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 Aircraft Corp filed Critical United Aircraft Corp
Priority to FR7435639A priority Critical patent/FR2288584A1/en
Publication of FR2288584A1 publication Critical patent/FR2288584A1/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Withdrawn legal-status Critical Current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
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/16—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass plates with holes of very small diameter, e.g. for spinning or burner nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
    • B23H7/265—Mounting of one or more thin electrodes
    • 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
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A guide block for electrodes employed in electrochemical drilling, is mfd. by (a) inserting several rod cores in specific positions in the walls of a mould; (b) casting a plastic in the mould to form the block; (c) removing the cores from the block and the mould-walls; (d) extracting the block from the mould; (e) inserting dielectric tubes in the holes made by the cores, the tubes being used to guide the electrodes. The mould walls are pref. fixed to a base plate carrying a threaded insert which forms part of the cast block, the insert then being used to mount the guide block in the drilling machine. The block is used in e.g. drilling coolant holes in turbine blades. A row of non-parallel holes can be simultaneously drilled in the blades.
FR7435639A 1974-10-24 1974-10-24 Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades Withdrawn FR2288584A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7435639A FR2288584A1 (en) 1974-10-24 1974-10-24 Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7435639A FR2288584A1 (en) 1974-10-24 1974-10-24 Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades

Publications (1)

Publication Number Publication Date
FR2288584A1 true FR2288584A1 (en) 1976-05-21

Family

ID=9144401

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435639A Withdrawn FR2288584A1 (en) 1974-10-24 1974-10-24 Multiple electrode guide block cast in plastic - suitable for electrochemical drilling of coolant holes in turbine blades

Country Status (1)

Country Link
FR (1) FR2288584A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375948A1 (en) * 1976-12-29 1978-07-28 Gen Electric METHOD FOR MANUFACTURING A COOLING SLOT OF THE LEAKING EDGE OF A TURBINE VANE
EP1524059A3 (en) * 2003-10-15 2006-05-24 General Electric Company An apparatus and method for machining in confined spaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375948A1 (en) * 1976-12-29 1978-07-28 Gen Electric METHOD FOR MANUFACTURING A COOLING SLOT OF THE LEAKING EDGE OF A TURBINE VANE
EP1524059A3 (en) * 2003-10-15 2006-05-24 General Electric Company An apparatus and method for machining in confined spaces

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Legal Events

Date Code Title Description
ST Notification of lapse