GB935819A - Improvements in spark machining apparatus - Google Patents

Improvements in spark machining apparatus

Info

Publication number
GB935819A
GB935819A GB2920762A GB2920762A GB935819A GB 935819 A GB935819 A GB 935819A GB 2920762 A GB2920762 A GB 2920762A GB 2920762 A GB2920762 A GB 2920762A GB 935819 A GB935819 A GB 935819A
Authority
GB
United Kingdom
Prior art keywords
support
screw
fluid pressure
electrode
spark
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
GB2920762A
Inventor
Marc Bruma
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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 Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Publication of GB935819A publication Critical patent/GB935819A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
    • 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
    • B23H7/28—Moving electrode in a plane normal to the feed direction, e.g. orbiting
    • 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
    • B23H7/30—Moving electrode in the feed direction

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

935,819. Electro - erosion. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. July 30, 1962 [Aug. 11, 1961], No. 29207/62. Class 83 (4). In a spark erosion apparatus the weight of the electrode 1 and its support 5 is balanced by upwardly-acting fluid pressure, and electromechanical means 9, 10 which have a practically instantaneous response, are provided for maintaining the spark gap constant. The electrode support 5 operates within a cylinder 6 and is sealed thereto by a diaphragm 13 to the underside of which constant pressure liquid or air is supplied through valve 12 from source 11. Gap adjustment is affected by means 9, as described in Specification 800,450, which drives through an electromagnetic clutch 10 a screw 8 threaded into the support 5. Balls 14 are provided to reduce friction and the screw is reversible so that it can be rotated by upward movement of the support 5 under fluid pressure. The workpiece 2 is immersed in a bath 15 containing dielectric liquid 16.
GB2920762A 1961-08-11 1962-07-30 Improvements in spark machining apparatus Expired GB935819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR870620A FR1304170A (en) 1961-08-11 1961-08-11 Improvements to devices for machining by intermittent electric discharges

Publications (1)

Publication Number Publication Date
GB935819A true GB935819A (en) 1963-09-04

Family

ID=8761137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2920762A Expired GB935819A (en) 1961-08-11 1962-07-30 Improvements in spark machining apparatus

Country Status (3)

Country Link
CH (1) CH388488A (en)
FR (1) FR1304170A (en)
GB (1) GB935819A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003400A1 (en) * 2009-07-10 2011-01-13 Mtu Aero Engines Gmbh Device and method for electrochemically removing a surface of a component

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772494A (en) * 1968-10-18 1973-11-13 Connor T O Electrical machining structure
DE3209982C2 (en) * 1982-03-18 1983-12-29 Maschinenbau Grieshaber Gmbh & Co, 7620 Wolfach Feed device for grinding flat or spherical surfaces
FR2659884B1 (en) * 1990-03-20 1992-06-05 Snecma ELECTRODE HOLDER DEVICE FOR ELECTRO-EROSION MACHINING.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011003400A1 (en) * 2009-07-10 2011-01-13 Mtu Aero Engines Gmbh Device and method for electrochemically removing a surface of a component
US8801906B2 (en) 2009-07-10 2014-08-12 MTU Aero Engines AG Device and method for electrochemically removing a surface of a component

Also Published As

Publication number Publication date
CH388488A (en) 1965-02-28
FR1304170A (en) 1962-09-21

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