JPS57138531A - Electric source apparatus for machining by electrical discharge - Google Patents

Electric source apparatus for machining by electrical discharge

Info

Publication number
JPS57138531A
JPS57138531A JP1972881A JP1972881A JPS57138531A JP S57138531 A JPS57138531 A JP S57138531A JP 1972881 A JP1972881 A JP 1972881A JP 1972881 A JP1972881 A JP 1972881A JP S57138531 A JPS57138531 A JP S57138531A
Authority
JP
Japan
Prior art keywords
electric
circuit
electric discharge
electric current
switching circuit
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
JP1972881A
Other languages
Japanese (ja)
Other versions
JPH027770B2 (en
Inventor
Yoshio Ozaki
Kazuo Tsurumoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1972881A priority Critical patent/JPS57138531A/en
Publication of JPS57138531A publication Critical patent/JPS57138531A/en
Publication of JPH027770B2 publication Critical patent/JPH027770B2/ja
Granted 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
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
    • B23H1/022—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges for shaping the discharge pulse train

Landscapes

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

Abstract

PURPOSE:To lessen the scatter of electric discharge energy, by an electric source for wire cut electric discharge machining, the apparatus being provided with means for judging the state of a gap between an electrode and a work thereby controlling a pause period of an electric discharge. CONSTITUTION:A sub-switch circuit S1 having a small supply capacity of a peak electric current during electric discharge and a main switching circuit S2 consisting of transistors Tr2, Tr3 having a large supply capacity of a peak electric current are provided, and arranged in parallel with electric sources V1, V2, electric current restricting resistors R1, R2... to give discharge voltages E1, E2 and electric currents. The opening and closing of the switching circuits S1, S2 is controlled by a control section 24, and an oscillator for driving to open or close the sub-switching circuit S1, an electrode gap state discriminating circuit 26, a pause period setting circuit 28 and a close time setting circuit 30 for the main switching circuit S2 are provided.
JP1972881A 1981-02-13 1981-02-13 Electric source apparatus for machining by electrical discharge Granted JPS57138531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1972881A JPS57138531A (en) 1981-02-13 1981-02-13 Electric source apparatus for machining by electrical discharge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972881A JPS57138531A (en) 1981-02-13 1981-02-13 Electric source apparatus for machining by electrical discharge

Publications (2)

Publication Number Publication Date
JPS57138531A true JPS57138531A (en) 1982-08-26
JPH027770B2 JPH027770B2 (en) 1990-02-20

Family

ID=12007367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972881A Granted JPS57138531A (en) 1981-02-13 1981-02-13 Electric source apparatus for machining by electrical discharge

Country Status (1)

Country Link
JP (1) JPS57138531A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161230A (en) * 1983-03-02 1984-09-12 Mitsubishi Electric Corp Machining power source for wire cut discharge machining device
JPS61111819A (en) * 1984-11-05 1986-05-29 Mitsubishi Electric Corp Spark erosion apparatus
JPS61111818A (en) * 1984-11-05 1986-05-29 Mitsubishi Electric Corp Spark erosion apparatus
JPS63260721A (en) * 1987-04-16 1988-10-27 Inoue Japax Res Inc Electric discharge machining device
JPH0197521A (en) * 1987-10-12 1989-04-17 Mitsubishi Electric Corp Source device for electric discharge machining

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51104696A (en) * 1975-03-11 1976-09-16 Inoue Japax Res HODENKAKO SOCHI
JPS5388295A (en) * 1977-01-12 1978-08-03 Inoue Japax Res Inc Discharge working method and device therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51104696A (en) * 1975-03-11 1976-09-16 Inoue Japax Res HODENKAKO SOCHI
JPS5388295A (en) * 1977-01-12 1978-08-03 Inoue Japax Res Inc Discharge working method and device therefor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161230A (en) * 1983-03-02 1984-09-12 Mitsubishi Electric Corp Machining power source for wire cut discharge machining device
JPH059209B2 (en) * 1983-03-02 1993-02-04 Mitsubishi Electric Corp
JPS61111819A (en) * 1984-11-05 1986-05-29 Mitsubishi Electric Corp Spark erosion apparatus
JPS61111818A (en) * 1984-11-05 1986-05-29 Mitsubishi Electric Corp Spark erosion apparatus
JPS63260721A (en) * 1987-04-16 1988-10-27 Inoue Japax Res Inc Electric discharge machining device
JPH0197521A (en) * 1987-10-12 1989-04-17 Mitsubishi Electric Corp Source device for electric discharge machining

Also Published As

Publication number Publication date
JPH027770B2 (en) 1990-02-20

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