GB759190A - Means for use in the electro-erosion of electrically conductive materials - Google Patents

Means for use in the electro-erosion of electrically conductive materials

Info

Publication number
GB759190A
GB759190A GB318954A GB318954A GB759190A GB 759190 A GB759190 A GB 759190A GB 318954 A GB318954 A GB 318954A GB 318954 A GB318954 A GB 318954A GB 759190 A GB759190 A GB 759190A
Authority
GB
United Kingdom
Prior art keywords
electrode
cam
workpiece
spark
voltage
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
GB318954A
Inventor
Alfred Bowman
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.)
Wickman Ltd
Original Assignee
Wickman Ltd
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 Wickman Ltd filed Critical Wickman Ltd
Priority to GB318954A priority Critical patent/GB759190A/en
Publication of GB759190A publication Critical patent/GB759190A/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
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece

Landscapes

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

Abstract

759,190. Cutting by spark discharge. WICKMAN, Ltd. Jan. 5, 1955 [Feb. 3, 1954], No. 3189/54. Class 83 (4). In an electro-erosion apparatus in which the spark passes through a liquid dielectric between the electrode f and the workpiece g and the feed mechanism is responsive to the voltage or current across the spark gap, the electrode is vibrated by means including a cam n in order to cause a localized pumping action on the liquid dielectric between the electrode and the workpiece and thereby disperse detached metal particles from the spark path. The electrode is attached to a quill h mounted in a slide b movable on a guide a by a feed-screw c rotated through gearing d by a motor e whose speed is controlled by the voltage or current in the sparkgap between the electrode f and the workpiece g. The quill is movable towards the workpiece by a spring k and away therefrom by a lever m actuated by the cam n which is rotated through gearing o by a constant-speed motor p. The electrode is retracted by the cam at a rate greater than that at which the feed mechanism can respond to the charge of spark voltage or current during such retraction. In a modification the electrode is moved towards the workpiece by the cam and away from it by the spring. In another modification both movements are effected by the cam, one end of the arm m engaging a track in the cam.
GB318954A 1954-02-03 1954-02-03 Means for use in the electro-erosion of electrically conductive materials Expired GB759190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB318954A GB759190A (en) 1954-02-03 1954-02-03 Means for use in the electro-erosion of electrically conductive materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB318954A GB759190A (en) 1954-02-03 1954-02-03 Means for use in the electro-erosion of electrically conductive materials

Publications (1)

Publication Number Publication Date
GB759190A true GB759190A (en) 1956-10-17

Family

ID=9753625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB318954A Expired GB759190A (en) 1954-02-03 1954-02-03 Means for use in the electro-erosion of electrically conductive materials

Country Status (1)

Country Link
GB (1) GB759190A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370147A (en) * 1964-05-13 1968-02-20 Ex Cell O Corp Overriding control means for a servo control system on an electrical discharge apparatus
US3492593A (en) * 1963-04-26 1970-01-27 Agie Ag Ind Elektronik Adjustable pulse generator particularly for electro-erosion metal working
US3536880A (en) * 1964-03-14 1970-10-27 Charmilles Sa Ateliers Method and apparatus for machining through intermittent electric discharges
US3539753A (en) * 1965-02-11 1970-11-10 Agie Ag Ind Elektronik Monitoring apparatus for electro-erosion pulse generator
US3590210A (en) * 1968-10-18 1971-06-29 Oconnor Thomas John Electroerosive machining structure
US3662143A (en) * 1970-12-21 1972-05-09 Cincinnati Milacron Inc Method and apparatus for detecting and controlling by relative movement between the tool and workpiece arcing conditions in an edm process
US3772494A (en) * 1968-10-18 1973-11-13 Connor T O Electrical machining structure
US3789182A (en) * 1972-02-23 1974-01-29 Colt Ind Operating Corp Apparatus for electrical discharge machining employing periodic extended pulse off time
DE2501542A1 (en) * 1975-01-16 1976-07-22 Aeg Elotherm Gmbh Vibrator for spark erosion machine - has motor driven eccentric and adjustable stop
FR2488176A1 (en) * 1980-08-05 1982-02-12 Inoue Japax Res METHOD AND MACHINE TOOL FOR ELECTRIC DISCHARGE MACHINING
US4654498A (en) * 1983-05-19 1987-03-31 Matsushita Electric Industrial Co., Ltd. Electrical discharge machining electrode for forming minute holes in a workpiece and electrical discharge machining apparatus employing such an electrode

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3492593A (en) * 1963-04-26 1970-01-27 Agie Ag Ind Elektronik Adjustable pulse generator particularly for electro-erosion metal working
US3536880A (en) * 1964-03-14 1970-10-27 Charmilles Sa Ateliers Method and apparatus for machining through intermittent electric discharges
US3370147A (en) * 1964-05-13 1968-02-20 Ex Cell O Corp Overriding control means for a servo control system on an electrical discharge apparatus
US3539753A (en) * 1965-02-11 1970-11-10 Agie Ag Ind Elektronik Monitoring apparatus for electro-erosion pulse generator
US3590210A (en) * 1968-10-18 1971-06-29 Oconnor Thomas John Electroerosive machining structure
US3772494A (en) * 1968-10-18 1973-11-13 Connor T O Electrical machining structure
US3662143A (en) * 1970-12-21 1972-05-09 Cincinnati Milacron Inc Method and apparatus for detecting and controlling by relative movement between the tool and workpiece arcing conditions in an edm process
US3789182A (en) * 1972-02-23 1974-01-29 Colt Ind Operating Corp Apparatus for electrical discharge machining employing periodic extended pulse off time
DE2501542A1 (en) * 1975-01-16 1976-07-22 Aeg Elotherm Gmbh Vibrator for spark erosion machine - has motor driven eccentric and adjustable stop
FR2488176A1 (en) * 1980-08-05 1982-02-12 Inoue Japax Res METHOD AND MACHINE TOOL FOR ELECTRIC DISCHARGE MACHINING
US4654498A (en) * 1983-05-19 1987-03-31 Matsushita Electric Industrial Co., Ltd. Electrical discharge machining electrode for forming minute holes in a workpiece and electrical discharge machining apparatus employing such an electrode

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