JPS563142A - Power source device for electrospark machining - Google Patents

Power source device for electrospark machining

Info

Publication number
JPS563142A
JPS563142A JP7768579A JP7768579A JPS563142A JP S563142 A JPS563142 A JP S563142A JP 7768579 A JP7768579 A JP 7768579A JP 7768579 A JP7768579 A JP 7768579A JP S563142 A JPS563142 A JP S563142A
Authority
JP
Japan
Prior art keywords
voltage
electrodischarge
interelectrode
power source
capacitor
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
JP7768579A
Other languages
Japanese (ja)
Other versions
JPS6052889B2 (en
Inventor
Tetsuro Ito
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 JP7768579A priority Critical patent/JPS6052889B2/en
Publication of JPS563142A publication Critical patent/JPS563142A/en
Publication of JPS6052889B2 publication Critical patent/JPS6052889B2/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
    • B23H7/02—Wire-cutting
    • B23H7/04—Apparatus for supplying current to working gap; Electric circuits specially adapted therefor

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

PURPOSE:To raise the machining speed and machining precision by controlling the electrodischarge starting voltage and the electrodischarge energy determining voltage of a capacitor separately. CONSTITUTION:As for the waveform of an interelectrode current between an article 1 to be machined and an electrode wire 2 through the intermediary of the machining liquid, the peak current value thereof is expressed by the formula: IP=E1(C1/L0)<1/2>, while the current pulse width thereof is expressed by the formula: tauP=pi(L0. C1)<1/2>, where E1 is the high-voltage DC power source voltage, C1 is the electrodischarge capacitor thereof, and L0 is the circuit inductance of the main circuit. Accordingly, by changing C1 and E1, the electrodischarge energy can be selected. In addition, by charging the capacitor C0, the electrodischarge starting voltage can be controlled by the low-voltage power source E0 employed for interelectrode servo through a diode D0 when the interelectrode aperture is narrow enough to make discharge. Moreover, a switch SW conducts switching only when the average value Vgo of the voltage Vg impressed on C0 for detecting the interelectrode length is found between VL and VH.
JP7768579A 1979-06-20 1979-06-20 Power supply device for electrical discharge machining Expired JPS6052889B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7768579A JPS6052889B2 (en) 1979-06-20 1979-06-20 Power supply device for electrical discharge machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7768579A JPS6052889B2 (en) 1979-06-20 1979-06-20 Power supply device for electrical discharge machining

Publications (2)

Publication Number Publication Date
JPS563142A true JPS563142A (en) 1981-01-13
JPS6052889B2 JPS6052889B2 (en) 1985-11-21

Family

ID=13640743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7768579A Expired JPS6052889B2 (en) 1979-06-20 1979-06-20 Power supply device for electrical discharge machining

Country Status (1)

Country Link
JP (1) JPS6052889B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539264A (en) * 1982-10-12 1985-09-03 Sony Corporation Magnetic recording medium
JPS61209738A (en) * 1984-11-01 1986-09-18 リチヤ−ド　イ−　サツクストン Production unit for coil spring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62166891U (en) * 1986-04-11 1987-10-23
JPS6318189U (en) * 1986-07-21 1988-02-06

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539264A (en) * 1982-10-12 1985-09-03 Sony Corporation Magnetic recording medium
JPS61209738A (en) * 1984-11-01 1986-09-18 リチヤ−ド　イ−　サツクストン Production unit for coil spring

Also Published As

Publication number Publication date
JPS6052889B2 (en) 1985-11-21

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