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GB1433033A - Electrolytic machining - Google Patents

Electrolytic machining

Info

Publication number
GB1433033A
GB1433033A GB1743173A GB1743173A GB1433033A GB 1433033 A GB1433033 A GB 1433033A GB 1743173 A GB1743173 A GB 1743173A GB 1743173 A GB1743173 A GB 1743173A GB 1433033 A GB1433033 A GB 1433033A
Authority
GB
United Kingdom
Prior art keywords
electrolyte
cathode
hole
incipient
glow
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.)
Expired
Application number
GB1743173A
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 GB1433033A publication Critical patent/GB1433033A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14—Making holes
    • B23H9/16—Making holes using an electrolytic jet
    • 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
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • B23H9/14—Making holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/302—Application in turbines in gas turbines

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1433033 Electrolytic machining GENERAL ELECTRIC CO 11 April 1973 [19 April 1972] 17431/73 Heading C7B Material is electrolytically removed from a workpiece 14 such as a turbine blade so as to provide a hole therein with an enlarged mouth. Material removal is by means of a tool comprising a first cathode 16 in an electrolyte guide-member 18 of glass and a second cathode 22 carried by the guide-member and having a dielectric coating 26. The current supplied to the first electrode 16 is at a potential sufficient to create a condition at least of incipient glow in the electrolyte. The current supplied to the electrode 22 is at a potential less than sufficient to create this condition. At incipient glow, the current begins to decrease with increasing voltage. The electrolyte flows as indicated at 12 and 32, the charged electrolyte stream 12 forming a hole in the workpiece and the second cathode 22 forming an enlarged mouth to the hole. Reference has been directed by the Comptroller to Specification 1159092.
GB1743173A 1972-04-19 1973-04-11 Electrolytic machining Expired GB1433033A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24537572A 1972-04-19 1972-04-19

Publications (1)

Publication Number Publication Date
GB1433033A true GB1433033A (en) 1976-04-22

Family

ID=22926413

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1743173A Expired GB1433033A (en) 1972-04-19 1973-04-11 Electrolytic machining

Country Status (8)

Country Link
US (1) US3795604A (en)
JP (1) JPS4921342A (en)
BE (1) BE795869A (en)
CA (1) CA1006846A (en)
DE (1) DE2311695A1 (en)
FR (1) FR2180987A1 (en)
GB (1) GB1433033A (en)
IT (1) IT983838B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188513A (en) * 2018-01-02 2018-06-22 青岛理工大学 Double-edge annular electrode for laser electrochemical composite machining

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880745A (en) * 1974-03-28 1975-04-29 United Aircraft Corp Helically fluted deep hole cathode and method of making same
US4002518A (en) * 1974-03-28 1977-01-11 United Technologies Corporation Helically fluted deep hole cathode and method of making same
JPS6039444U (en) * 1983-08-22 1985-03-19 株式会社新潟鐵工所 positioning device
US4721838A (en) * 1984-10-29 1988-01-26 Abdukarimov Erkin T Tool for electrical discharge piercing of intricately-shaped holes and method of using same
JPH0611733Y2 (en) * 1986-10-30 1994-03-30 日東工器株式会社 Work mounting pallet
US4819325A (en) * 1987-06-01 1989-04-11 Technical Manufacturing Systems, Inc. Method of forming electro-discharge machining electrode
JPH0475852A (en) * 1990-07-12 1992-03-10 Canon Inc Base plate rotating mechanism for turret type mounting machine
US5605639A (en) * 1993-12-21 1997-02-25 United Technologies Corporation Method of producing diffusion holes in turbine components by a multiple piece electrode
US5418345A (en) * 1994-02-28 1995-05-23 United Technologies Corporation Method for forming shaped passages
DE102014111542A1 (en) * 2014-08-13 2016-02-18 pEMTec SNC Apparatus and method for electrochemical machining in the outline of rotationally symmetrical workpieces
DE102015219233A1 (en) * 2015-10-06 2017-04-06 Continental Automotive Gmbh Apparatus for processing a workpiece for a fluid injector and method for manufacturing a nozzle body for a fluid injector
US10245666B2 (en) * 2016-06-30 2019-04-02 General Electric Company Drilling tool for use in machining a conductive work piece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188513A (en) * 2018-01-02 2018-06-22 青岛理工大学 Double-edge annular electrode for laser electrochemical composite machining

Also Published As

Publication number Publication date
CA1006846A (en) 1977-03-15
IT983838B (en) 1974-11-11
JPS4921342A (en) 1974-02-25
US3795604A (en) 1974-03-05
DE2311695A1 (en) 1973-10-25
FR2180987A1 (en) 1973-11-30
BE795869A (en) 1973-06-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee