JPS5633235A - Electrospark machining device - Google Patents

Electrospark machining device

Info

Publication number
JPS5633235A
JPS5633235A JP10616479A JP10616479A JPS5633235A JP S5633235 A JPS5633235 A JP S5633235A JP 10616479 A JP10616479 A JP 10616479A JP 10616479 A JP10616479 A JP 10616479A JP S5633235 A JPS5633235 A JP S5633235A
Authority
JP
Japan
Prior art keywords
circuit
machining
pulses
added
voltage
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
JP10616479A
Other languages
Japanese (ja)
Other versions
JPS6014652B2 (en
Inventor
Kiyoshi Inoue
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.)
Inoue Japax Research Inc
Original Assignee
Inoue Japax Research Inc
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 Inoue Japax Research Inc filed Critical Inoue Japax Research Inc
Priority to JP10616479A priority Critical patent/JPS6014652B2/en
Priority to US06/171,943 priority patent/US4335294A/en
Priority to GB8024220A priority patent/GB2054436B/en
Priority to IT49351/80A priority patent/IT1128661B/en
Priority to DE19803028309 priority patent/DE3028309A1/en
Priority to FR8016540A priority patent/FR2462229A1/en
Publication of JPS5633235A publication Critical patent/JPS5633235A/en
Publication of JPS6014652B2 publication Critical patent/JPS6014652B2/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
    • B23H11/00—Auxiliary apparatus or details, not otherwise provided for
    • B23H11/003—Mounting of workpieces, e.g. working-tables
    • 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

Abstract

PURPOSE:To conduct stable electrospark machining by a method wherein pulse conditions are controlled by expected stray capacities and according to change of the stray capacities. CONSTITUTION:Machining pulses are given to machining clearances by switch-on- and-off control and electric spark is applied in the machining clearances. If the electric spark is started, the clearance voltage becomes lower rapidly. A detecting circuit 9 detects the clearance voltage and adds signals from a gate 10 to a circuit 11. The circuit 11 synchronizes with them and outputs short check pulses. The check pulses are added to a detecting circuit 12, detects signals of the discharge current from a resistor 7 and adds them to a discriminating circuit 13. The discriminated output of the discriminating circuit 13 is added to a device 6 to control the voltage of a power source 3.
JP10616479A 1979-07-25 1979-08-21 Electric discharge machining equipment Expired JPS6014652B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP10616479A JPS6014652B2 (en) 1979-08-21 1979-08-21 Electric discharge machining equipment
US06/171,943 US4335294A (en) 1979-07-25 1980-07-24 EDM Method and apparatus having a gap discharge circuit constructed with limited stray capacitances
GB8024220A GB2054436B (en) 1979-07-25 1980-07-24 Electrical discharge machining using controlled low stray capacitances
IT49351/80A IT1128661B (en) 1979-07-25 1980-07-25 ELECTRIC DISCHARGE PROCESSING METHOD AND DEVICE WITH A DISCHARGE CIRCUIT THROUGH THE INTERSPACE HAVING LIMITED PARASITE CAPACITY
DE19803028309 DE3028309A1 (en) 1979-07-25 1980-07-25 METHOD AND DEVICE FOR ELECTROEROSIVE MACHINING
FR8016540A FR2462229A1 (en) 1979-07-25 1980-07-25 METHOD AND APPARATUS FOR MACHINING BY ELECTRIC DISCHARGE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10616479A JPS6014652B2 (en) 1979-08-21 1979-08-21 Electric discharge machining equipment

Publications (2)

Publication Number Publication Date
JPS5633235A true JPS5633235A (en) 1981-04-03
JPS6014652B2 JPS6014652B2 (en) 1985-04-15

Family

ID=14426633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10616479A Expired JPS6014652B2 (en) 1979-07-25 1979-08-21 Electric discharge machining equipment

Country Status (1)

Country Link
JP (1) JPS6014652B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279914A (en) * 1985-10-04 1987-04-13 Mitsubishi Electric Corp Electric discharge machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4926107A (en) * 1986-07-31 1990-05-15 The Boeing Company Variable inertia energy storage system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279914A (en) * 1985-10-04 1987-04-13 Mitsubishi Electric Corp Electric discharge machine
JPH0450122B2 (en) * 1985-10-04 1992-08-13 Mitsubishi Electric Corp

Also Published As

Publication number Publication date
JPS6014652B2 (en) 1985-04-15

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