JPS57121422A - Wire-cut spark erosion machine - Google Patents

Wire-cut spark erosion machine

Info

Publication number
JPS57121422A
JPS57121422A JP361581A JP361581A JPS57121422A JP S57121422 A JPS57121422 A JP S57121422A JP 361581 A JP361581 A JP 361581A JP 361581 A JP361581 A JP 361581A JP S57121422 A JPS57121422 A JP S57121422A
Authority
JP
Japan
Prior art keywords
wire
machining
power source
spark erosion
detected
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
JP361581A
Other languages
Japanese (ja)
Inventor
Yutaka Tanaka
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 JP361581A priority Critical patent/JPS57121422A/en
Publication of JPS57121422A publication Critical patent/JPS57121422A/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
    • 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 prevent breaking of wire electrode by detecting shock waves generated at the machining portion of wire-cut spark erosion machining, and controlling the current intensity from the power source in accordance with the value detected. CONSTITUTION:Pulse voltage is imposed by the power source 11 between a wire electrodes 1 and the work 10, and cutting oil 14 is supplied to the location of machining through a cutting oil supply pipe 13, so that the intended machining is accomplished by wire-cut spark erosion technique. Attendant shock waves or ultrasonic waves generated by electric discharge of pulse voltage at the machining location are detected by an ultrasonic wave sensor 15; and if the value detected is smaller than the normal value, the current intensity from the power source 11 is reduced accordingly by means of a power source control circuit 16. Control of electric power is made by either interrupting the voltage pulse or reducing the peak current. Thus, an abnormal discharge, etc. is positively detected and wire electrode breaking accident prevented.
JP361581A 1981-01-13 1981-01-13 Wire-cut spark erosion machine Pending JPS57121422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP361581A JPS57121422A (en) 1981-01-13 1981-01-13 Wire-cut spark erosion machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP361581A JPS57121422A (en) 1981-01-13 1981-01-13 Wire-cut spark erosion machine

Publications (1)

Publication Number Publication Date
JPS57121422A true JPS57121422A (en) 1982-07-28

Family

ID=11562391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP361581A Pending JPS57121422A (en) 1981-01-13 1981-01-13 Wire-cut spark erosion machine

Country Status (1)

Country Link
JP (1) JPS57121422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259326A (en) * 1984-06-02 1985-12-21 Inoue Japax Res Inc Wire-cut electric discharge machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157093A (en) * 1974-11-15 1976-05-19 Inoue Japax Res WAIYAAKATSUTOHODEN KAKOSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5157093A (en) * 1974-11-15 1976-05-19 Inoue Japax Res WAIYAAKATSUTOHODEN KAKOSOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60259326A (en) * 1984-06-02 1985-12-21 Inoue Japax Res Inc Wire-cut electric discharge machine

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