JPS57194823A - Electrospark machining device - Google Patents

Electrospark machining device

Info

Publication number
JPS57194823A
JPS57194823A JP7975281A JP7975281A JPS57194823A JP S57194823 A JPS57194823 A JP S57194823A JP 7975281 A JP7975281 A JP 7975281A JP 7975281 A JP7975281 A JP 7975281A JP S57194823 A JPS57194823 A JP S57194823A
Authority
JP
Japan
Prior art keywords
machining
charge
discharge
electrode
machined
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
JP7975281A
Other languages
Japanese (ja)
Inventor
Toshimitsu Sakakibara
Tamio Takawashi
Shigeo Yamada
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 JP7975281A priority Critical patent/JPS57194823A/en
Publication of JPS57194823A publication Critical patent/JPS57194823A/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
    • 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
    • B23H2300/00—Power source circuits or energization
    • B23H2300/20—Relaxation circuit power supplies for supplying the machining current, e.g. capacitor or inductance energy storage circuits

Landscapes

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

Abstract

PURPOSE:To omit a capacitor for charge and discharge required at a minimum in a charge and discharge circuit, and to obtain the minimum machining surface roughness by using floating capacity existing between a machining electrode and a material to be machined as the capacitor for charge and discharge. CONSTITUTION:Since the machining electrode 10 and the material to be machined 12 are immersed in a machining liquid 16 and there is the machining liquid in a machining clearance between the electrode and the material, it is well known that there is the floating capacity 28 between the electrode 10 and the material to be machined 12, and the capacity 28 is used as the capacitor for charge and discharge. When large capacity is required as rough finishing, intermediate finishing, etc., necessary select switches 26-1-26-N are turned ON, the capacitors 24-1-24-N for charge and discharge are charged, and electricity is discharged and machining is conducted at every time the charging voltage reaches dielectric breakdown voltage between the electrode 10 and the material to be machined 12. Accordingly, the capacitor for charge and discharge required at a minimum in the circuit is removed, and the minimum machining surface roughness is obtained.
JP7975281A 1981-05-26 1981-05-26 Electrospark machining device Pending JPS57194823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7975281A JPS57194823A (en) 1981-05-26 1981-05-26 Electrospark machining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7975281A JPS57194823A (en) 1981-05-26 1981-05-26 Electrospark machining device

Publications (1)

Publication Number Publication Date
JPS57194823A true JPS57194823A (en) 1982-11-30

Family

ID=13698949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7975281A Pending JPS57194823A (en) 1981-05-26 1981-05-26 Electrospark machining device

Country Status (1)

Country Link
JP (1) JPS57194823A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5165165B1 (en) * 2012-06-05 2013-03-21 三菱電機株式会社 Discharge surface treatment equipment
WO2016059689A1 (en) * 2014-10-15 2016-04-21 三菱電機株式会社 Power supply device for electrical discharge machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5165165B1 (en) * 2012-06-05 2013-03-21 三菱電機株式会社 Discharge surface treatment equipment
WO2013183116A1 (en) * 2012-06-05 2013-12-12 三菱電機株式会社 Discharge surface processing device
US9308546B2 (en) 2012-06-05 2016-04-12 Mitsubishi Electric Corporation Discharge surface treatment apparatus
WO2016059689A1 (en) * 2014-10-15 2016-04-21 三菱電機株式会社 Power supply device for electrical discharge machine

Similar Documents

Publication Publication Date Title
DE3570008D1 (en) Tantalum powders for the manufacture of electrodes for electrolytic capacitors with a high charge and low leakage current
JPS5652133A (en) Electric source for wire-cut electric spark machining
DE3169726D1 (en) Arrangement to rapidly eliminate a residual charge on a capacitive voltage divider used in the control of high alternating voltages
GB2081163B (en) Use of carbonaceous tool electrode in electrical discharge machining
JPS57156128A (en) Electric discharge machining device
JPS57194823A (en) Electrospark machining device
JPS5796724A (en) Wire cut electric discharge machining method
JPS5689434A (en) Power source to wire-cut electric discharge machining
JPS5615930A (en) Electrospark machining device
JPS55157732A (en) Electronic flash device
GB2041813B (en) Electrochemical/electrical discharge machining of workpieces
JPS56119318A (en) Electric discharge machining apparatus
EP0364591A4 (en) Electric discharge machining apparatus preventing electrolytic corrosion by short-circuit detection voltage.
GB908195A (en) Improvements in and relating to methods and apparatus for machining metal by spark erosion
JPS5682127A (en) Electric power unit for electrospark machining device
JPS54156296A (en) Controlling method for wire-cut electric discharge machine
JPS56114622A (en) Spark erosion power source
JPS5771725A (en) Electrical discharge machine
JPS6434012A (en) Oscillation circuit
AT385611B (en) FLAP ARRANGEMENT ON THE RUNNING CONTACT INLET IN THE BOTTOM WALL OF A HIGH VOLTAGE SWITCHING CELL
JPS54102923A (en) Driving circiut
GB843323A (en) Improvements in or relating to spark erosion apparatus
JPS5681141A (en) Electric dust collector
JPS57122668A (en) Booster circuit
JPS56107833A (en) Electric discharge machining power source