JPS5548532A - Preventive method of sustained arc discharge of electric spark machine - Google Patents

Preventive method of sustained arc discharge of electric spark machine

Info

Publication number
JPS5548532A
JPS5548532A JP12242678A JP12242678A JPS5548532A JP S5548532 A JPS5548532 A JP S5548532A JP 12242678 A JP12242678 A JP 12242678A JP 12242678 A JP12242678 A JP 12242678A JP S5548532 A JPS5548532 A JP S5548532A
Authority
JP
Japan
Prior art keywords
voltage
electrode
differential
pulse
sustained arc
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
JP12242678A
Other languages
Japanese (ja)
Other versions
JPS6312727B2 (en
Inventor
Masakazu Kishi
Yasuo Suzuki
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko 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 Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP12242678A priority Critical patent/JPS5548532A/en
Publication of JPS5548532A publication Critical patent/JPS5548532A/en
Publication of JPS6312727B2 publication Critical patent/JPS6312727B2/ja
Granted 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
    • B23H7/14—Electric circuits specially adapted therefor, e.g. power supply
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece

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 provide a stable electric spark machining condition and prevnet from a sustained arc electric discharge by detecting the average voltage across the electrodes and the sustained arc discharge voltage, allowing the detecting differential voltage to control the machining electrode clearance and the power pulse of machining power source. CONSTITUTION:An electric spark machine operates by applying an electric discharge voltage pulse applied from the power source 1 to an electrode 2 and a workpiece 3, permitting to enter the average voltage of across-electrode voltage pulse which is detected with an across-electrode voltage detector 4 into a differential amplifier 5, wherewith the voltage applied with a standard voltage set unit 6 being compared, by these differential voltage a servo motor 7 being controlled to operate automatically to feed the electrode 2. In this case the sustained arc electric discharge pulse detector 11 is connected in parallel with said voltage detector 4, allowing to enter respective output voltage into the differential amplifier 12, causing to operate similarly a servo motor 7 by the differential voltage applied, and controlling a machining current and the like by means of a comparison amplifier 8.
JP12242678A 1978-10-04 1978-10-04 Preventive method of sustained arc discharge of electric spark machine Granted JPS5548532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12242678A JPS5548532A (en) 1978-10-04 1978-10-04 Preventive method of sustained arc discharge of electric spark machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12242678A JPS5548532A (en) 1978-10-04 1978-10-04 Preventive method of sustained arc discharge of electric spark machine

Publications (2)

Publication Number Publication Date
JPS5548532A true JPS5548532A (en) 1980-04-07
JPS6312727B2 JPS6312727B2 (en) 1988-03-22

Family

ID=14835534

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12242678A Granted JPS5548532A (en) 1978-10-04 1978-10-04 Preventive method of sustained arc discharge of electric spark machine

Country Status (1)

Country Link
JP (1) JPS5548532A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0456114U (en) * 1990-09-19 1992-05-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0456114U (en) * 1990-09-19 1992-05-14

Also Published As

Publication number Publication date
JPS6312727B2 (en) 1988-03-22

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