JPS5621729A - Electric discharge machining device - Google Patents

Electric discharge machining device

Info

Publication number
JPS5621729A
JPS5621729A JP9327679A JP9327679A JPS5621729A JP S5621729 A JPS5621729 A JP S5621729A JP 9327679 A JP9327679 A JP 9327679A JP 9327679 A JP9327679 A JP 9327679A JP S5621729 A JPS5621729 A JP S5621729A
Authority
JP
Japan
Prior art keywords
machining
condenser
electric discharge
gap
current
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
JP9327679A
Other languages
Japanese (ja)
Inventor
Tadao Oizumi
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.)
Makino Milling Machine Co Ltd
Original Assignee
Makino Milling Machine Co 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 Makino Milling Machine Co Ltd filed Critical Makino Milling Machine Co Ltd
Priority to JP9327679A priority Critical patent/JPS5621729A/en
Publication of JPS5621729A publication Critical patent/JPS5621729A/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 equalize an electric discharge energy of a device and improve its machining efficiency, by applying a machining pulse from a switching element to a machining gap through a condenser and flowing a charge current to the condenser in the machining gap as a machining current. CONSTITUTION:Between a machining electrode 2 and a gate turn off thyristor 7, which is the switching element in a machining pulse power unit 5, a condenser 6 is connected in series, and a machining pulse from the machining pulse power unit 5 is applied to a machining gap 4 through the condenser 6. Accordingly, when the thyristor 7 is turned on, the condenser 6 is charged by the machining pulse, and said charge current simultaneously flows in the machining gap 4 as a main machining current to perform an electric discharge machining work by the charge current to the condenser 6. A resistor 8 is provided as a discharging resistor for discharging the electric charge to the condenser 6 after the machining work performed by the charge current.
JP9327679A 1979-07-24 1979-07-24 Electric discharge machining device Pending JPS5621729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9327679A JPS5621729A (en) 1979-07-24 1979-07-24 Electric discharge machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9327679A JPS5621729A (en) 1979-07-24 1979-07-24 Electric discharge machining device

Publications (1)

Publication Number Publication Date
JPS5621729A true JPS5621729A (en) 1981-02-28

Family

ID=14077907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9327679A Pending JPS5621729A (en) 1979-07-24 1979-07-24 Electric discharge machining device

Country Status (1)

Country Link
JP (1) JPS5621729A (en)

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