JPS56157923A - Power circuit for machining pulse - Google Patents

Power circuit for machining pulse

Info

Publication number
JPS56157923A
JPS56157923A JP5874280A JP5874280A JPS56157923A JP S56157923 A JPS56157923 A JP S56157923A JP 5874280 A JP5874280 A JP 5874280A JP 5874280 A JP5874280 A JP 5874280A JP S56157923 A JPS56157923 A JP S56157923A
Authority
JP
Japan
Prior art keywords
electric discharge
discharge machining
pulse
inductance
circuit
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
JP5874280A
Other languages
Japanese (ja)
Other versions
JPS603929B2 (en
Inventor
Toshihiko Furukawa
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.)
SODEITSUKU KK
Sodick Co Ltd
Original Assignee
SODEITSUKU KK
Sodick 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 SODEITSUKU KK, Sodick Co Ltd filed Critical SODEITSUKU KK
Priority to JP5874280A priority Critical patent/JPS603929B2/en
Priority to US06/256,765 priority patent/US4441005A/en
Priority to FR8108443A priority patent/FR2481979B1/en
Priority to DE3116857A priority patent/DE3116857C2/en
Priority to CH2857/81A priority patent/CH652058A5/en
Priority to IT21520/81A priority patent/IT1138304B/en
Publication of JPS56157923A publication Critical patent/JPS56157923A/en
Publication of JPS603929B2 publication Critical patent/JPS603929B2/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
    • 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 perform electric discharge machining for a machined surface with small roughness, by connecting an inductance element and damping resistor to the output of a switching circuit in the power source for an electric discharge machining pulse. CONSTITUTION:An electric discharge machining power circuit 1 is os such constitution that a DC power source 4 is connected to a switching transistor 3 through a resistor 5 and the switching transistor 3 is controlled in pulse width by a controller 2. Between an electrode 6 and work 7 and the switching circuit, there is connected a parallel circuit consisting of an air-core coil 8 and damping resistor 10. Inductance of the air-core coil 8 can be adjusted by taps 8a-8d to smooth a rise-up characteristic of pulse voltage as shown by dotted lines. It is preferably to arranged values such as at most 10mus for pulse width, at least 150V for power voltage and at least 3muH for inductance. In this way, electric discharge machining work for small surface roughness can be performed.
JP5874280A 1980-05-06 1980-05-06 Processing pulse power supply circuit Expired JPS603929B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP5874280A JPS603929B2 (en) 1980-05-06 1980-05-06 Processing pulse power supply circuit
US06/256,765 US4441005A (en) 1980-05-06 1981-04-23 EDM Pulse generator with a variable output inductor for producing pulse with gradually rising edges
FR8108443A FR2481979B1 (en) 1980-05-06 1981-04-28 SPARKING MACHINE
DE3116857A DE3116857C2 (en) 1980-05-06 1981-04-28 Device for electroerosive machining of workpieces
CH2857/81A CH652058A5 (en) 1980-05-06 1981-05-01 MACHINING DEVICE WITH ELECTRICAL DISCHARGE.
IT21520/81A IT1138304B (en) 1980-05-06 1981-05-05 ELECTRIC DISCHARGE MECHANICAL PROCESSING EQUIPMENT

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5874280A JPS603929B2 (en) 1980-05-06 1980-05-06 Processing pulse power supply circuit

Publications (2)

Publication Number Publication Date
JPS56157923A true JPS56157923A (en) 1981-12-05
JPS603929B2 JPS603929B2 (en) 1985-01-31

Family

ID=13092973

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5874280A Expired JPS603929B2 (en) 1980-05-06 1980-05-06 Processing pulse power supply circuit

Country Status (1)

Country Link
JP (1) JPS603929B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62178019U (en) * 1986-05-01 1987-11-12

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61156021U (en) * 1985-03-18 1986-09-27
JPS6384725U (en) * 1986-11-20 1988-06-03
JPS6391822U (en) * 1986-12-01 1988-06-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62178019U (en) * 1986-05-01 1987-11-12

Also Published As

Publication number Publication date
JPS603929B2 (en) 1985-01-31

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