JPS57138528A - Processor by passing electric current - Google Patents

Processor by passing electric current

Info

Publication number
JPS57138528A
JPS57138528A JP1972581A JP1972581A JPS57138528A JP S57138528 A JPS57138528 A JP S57138528A JP 1972581 A JP1972581 A JP 1972581A JP 1972581 A JP1972581 A JP 1972581A JP S57138528 A JPS57138528 A JP S57138528A
Authority
JP
Japan
Prior art keywords
inverter
electric current
switching
processor
effect transistor
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.)
Pending
Application number
JP1972581A
Other languages
Japanese (ja)
Inventor
Toshiaki Tanaka
Koji Akamatsu
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 JP1972581A priority Critical patent/JPS57138528A/en
Publication of JPS57138528A publication Critical patent/JPS57138528A/en
Pending 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 obtain better processability for the change of an electric current value within a wide range, by using a field-effect transistor as a switching element of an inverter. CONSTITUTION:The output of a direct current source 10 is converted into a high frequency output by the inverter 28, which is then applied through current restricting resistances 20 and relay contacts 22 to a discharge electrode 16 to perform the processing. A field-effect transistor 30 is used as a switching element of the inverter 28. Accordingly, irrespective of the magnitude of the switching current value, switching operation at a high speed can be obtained, and a pulse electric current wave shape having sharp building up and trailing from the inverter can be obtained.
JP1972581A 1981-02-13 1981-02-13 Processor by passing electric current Pending JPS57138528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1972581A JPS57138528A (en) 1981-02-13 1981-02-13 Processor by passing electric current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972581A JPS57138528A (en) 1981-02-13 1981-02-13 Processor by passing electric current

Publications (1)

Publication Number Publication Date
JPS57138528A true JPS57138528A (en) 1982-08-26

Family

ID=12007278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1972581A Pending JPS57138528A (en) 1981-02-13 1981-02-13 Processor by passing electric current

Country Status (1)

Country Link
JP (1) JPS57138528A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4647747A (en) * 1984-02-29 1987-03-03 Brother Kogyo Kabushiki Kaisha Arm extending through a work pan of a wire EDM permitting improved arm movement
US4672161A (en) * 1983-07-24 1987-06-09 Inoue-Japax Research Incorporated EDM method and apparatus with trapezoidized short-duration pulses
JPS6445522A (en) * 1987-08-14 1989-02-20 Mitsubishi Electric Corp Power supply device for electric discharge machining

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4578Y1 (en) * 1964-09-10 1970-01-06
JPS5026196A (en) * 1973-03-16 1975-03-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4578Y1 (en) * 1964-09-10 1970-01-06
JPS5026196A (en) * 1973-03-16 1975-03-19

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672161A (en) * 1983-07-24 1987-06-09 Inoue-Japax Research Incorporated EDM method and apparatus with trapezoidized short-duration pulses
US4647747A (en) * 1984-02-29 1987-03-03 Brother Kogyo Kabushiki Kaisha Arm extending through a work pan of a wire EDM permitting improved arm movement
JPS6445522A (en) * 1987-08-14 1989-02-20 Mitsubishi Electric Corp Power supply device for electric discharge machining

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