JPS5570525A - Method of controlling spark machining - Google Patents

Method of controlling spark machining

Info

Publication number
JPS5570525A
JPS5570525A JP12558679A JP12558679A JPS5570525A JP S5570525 A JPS5570525 A JP S5570525A JP 12558679 A JP12558679 A JP 12558679A JP 12558679 A JP12558679 A JP 12558679A JP S5570525 A JPS5570525 A JP S5570525A
Authority
JP
Japan
Prior art keywords
time
voltage
controlled
suspension
application
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
JP12558679A
Other languages
Japanese (ja)
Inventor
Naoichi Tomimoto
Nagao Saito
Kazuhiko Kobayashi
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 JP12558679A priority Critical patent/JPS5570525A/en
Publication of JPS5570525A publication Critical patent/JPS5570525A/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

Landscapes

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

Abstract

PURPOSE:To raise the efficiency of spark machining, by detecting which of plural time bands contains no-load time extending from the application of voltage to a machining gap to the production of discharge and by controlling suspension time in stages. CONSTITUTION:The wave form of a voltage, which is applied to a machining gap between an electrode 1 and a workpiece 2, is divided into a plurality of time bands. It is detected which of the time bands contains no-load time Kt extending from the application of the voltage to the production of discharge. Electrical current feed suspension time Pt is controlled in stages. The time of the voltage application is divided into three time bands, for example. Time from the voltage application to the first time band is represented by Kc1 and time from the voltage application to the second time band is represented by Kc2. If 0<=Kt<Kc1, the suspension time is controlled to Pc1. If Kc1<=Kt<Kc2, the suspension time is controlled to Pc2. If Kc2<=Kt<=taum, the suspension time is controlled to Pc3 (Pc1>Pc2>Pc3).
JP12558679A 1979-09-29 1979-09-29 Method of controlling spark machining Pending JPS5570525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12558679A JPS5570525A (en) 1979-09-29 1979-09-29 Method of controlling spark machining

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12558679A JPS5570525A (en) 1979-09-29 1979-09-29 Method of controlling spark machining

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP47098386A Division JPS4956295A (en) 1972-09-30 1972-09-30

Publications (1)

Publication Number Publication Date
JPS5570525A true JPS5570525A (en) 1980-05-28

Family

ID=14913834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12558679A Pending JPS5570525A (en) 1979-09-29 1979-09-29 Method of controlling spark machining

Country Status (1)

Country Link
JP (1) JPS5570525A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01115514A (en) * 1987-10-26 1989-05-08 Hoden Seimitsu Kako Kenkyusho Ltd Power source for electric discharge machining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01115514A (en) * 1987-10-26 1989-05-08 Hoden Seimitsu Kako Kenkyusho Ltd Power source for electric discharge machining

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