JPS5548533A - Electric spark machine provided with indicator to indicate electric discharge machining condition - Google Patents

Electric spark machine provided with indicator to indicate electric discharge machining condition

Info

Publication number
JPS5548533A
JPS5548533A JP12242778A JP12242778A JPS5548533A JP S5548533 A JPS5548533 A JP S5548533A JP 12242778 A JP12242778 A JP 12242778A JP 12242778 A JP12242778 A JP 12242778A JP S5548533 A JPS5548533 A JP S5548533A
Authority
JP
Japan
Prior art keywords
pulse
discharge
discharge time
normal
indicator
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
JP12242778A
Other languages
Japanese (ja)
Other versions
JPS6312725B2 (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 JP12242778A priority Critical patent/JPS5548533A/en
Publication of JPS5548533A publication Critical patent/JPS5548533A/en
Publication of JPS6312725B2 publication Critical patent/JPS6312725B2/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
    • 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
    • B23H1/024—Detection of, and response to, abnormal gap conditions, e.g. short circuits

Landscapes

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

Abstract

PURPOSE:To improve an operation by detecting respectively a normal electric discharge, a sustained arc discharge time, and no-discharge time wherefrom only the normal discharge time is detected to indicate as a pulse efficiency. CONSTITUTION:A device incorporating the first and the second comparison amplifiers 8, 9 which detect in comparing with a voltage applied by a level set units 4, 5 that may optionally set an electric discharge pulse in a normal discharge time and a sustained arc discharge pulse from the discharge voltage pulse that applies across the electrodes wherein the electrode 2 and the workpiece 3 are formed, the third comparison amplifier 7 to detect in comparing the voltage applied from a level set unit 6 with an across-electrode voltage pulse immediately applying said discharge voltage pulse, a logical circuit 12 which permits to produce only a discharge time pulse in a normal discharge time by taking a logical product of said respective amplifier, and a switch circuit 14 which controls switching an averaged electric discharge power source pulse by the output of said circuit and an indicator 17.
JP12242778A 1978-10-04 1978-10-04 Electric spark machine provided with indicator to indicate electric discharge machining condition Granted JPS5548533A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12242778A JPS5548533A (en) 1978-10-04 1978-10-04 Electric spark machine provided with indicator to indicate electric discharge machining condition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12242778A JPS5548533A (en) 1978-10-04 1978-10-04 Electric spark machine provided with indicator to indicate electric discharge machining condition

Publications (2)

Publication Number Publication Date
JPS5548533A true JPS5548533A (en) 1980-04-07
JPS6312725B2 JPS6312725B2 (en) 1988-03-22

Family

ID=14835558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12242778A Granted JPS5548533A (en) 1978-10-04 1978-10-04 Electric spark machine provided with indicator to indicate electric discharge machining condition

Country Status (1)

Country Link
JP (1) JPS5548533A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156538U (en) * 1980-04-21 1981-11-21
JPS584312A (en) * 1981-06-25 1983-01-11 Mitsubishi Electric Corp Electrospark machining apparatus
JPS6257817A (en) * 1985-09-05 1987-03-13 Mitsubishi Electric Corp Electric discharge machining power supply unit
JPS6268221A (en) * 1985-09-19 1987-03-28 Mitsubishi Electric Corp Machining power source for electric discharge machine
US4695696A (en) * 1982-05-28 1987-09-22 Mitsubishi Denki Kabushiki Kaisha Electric discharge machine with control of the machining pulse's current value in accordance with the delay time
US4751363A (en) * 1986-02-28 1988-06-14 Ho Kuang Ta Automatic turn-on fine finish circuit for electrical discharge machining

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156538U (en) * 1980-04-21 1981-11-21
JPS584312A (en) * 1981-06-25 1983-01-11 Mitsubishi Electric Corp Electrospark machining apparatus
JPH0158007B2 (en) * 1981-06-25 1989-12-08 Mitsubishi Electric Corp
US4695696A (en) * 1982-05-28 1987-09-22 Mitsubishi Denki Kabushiki Kaisha Electric discharge machine with control of the machining pulse's current value in accordance with the delay time
JPS6257817A (en) * 1985-09-05 1987-03-13 Mitsubishi Electric Corp Electric discharge machining power supply unit
JPS6268221A (en) * 1985-09-19 1987-03-28 Mitsubishi Electric Corp Machining power source for electric discharge machine
US4751363A (en) * 1986-02-28 1988-06-14 Ho Kuang Ta Automatic turn-on fine finish circuit for electrical discharge machining

Also Published As

Publication number Publication date
JPS6312725B2 (en) 1988-03-22

Similar Documents

Publication Publication Date Title
KR840009238A (en) Welding power control method and device
KR880013652A (en) Arc welding power supply system for consumable electrode and its control method
CA2020816A1 (en) Power supply circuit for discharge machining
JPS57156128A (en) Electric discharge machining device
JPS5548533A (en) Electric spark machine provided with indicator to indicate electric discharge machining condition
US3729610A (en) Electrical discharge machining device using logical control
JPS5548531A (en) Detecting method of electric spark machining condition
JPS54147594A (en) Wire-cutting electric discharge processing control device
KR830009890A (en) Wire-cut discharge processing power supply
JPS5548534A (en) Electric spark machine
JPS576916A (en) Power supply device
JPS6416316A (en) Electric discharge machine
JPS5789522A (en) Electric discharge machining device
JPS5682127A (en) Electric power unit for electrospark machining device
JPS5548530A (en) Electric spark machine having continuous arc electric discharge prevention device
JPS5454393A (en) Electic spark machining
JPS54109697A (en) An electric discharge processing device
JPS5748424A (en) Control system for electric discharge machine
JPS5548528A (en) Electric spark machine
KR940013703A (en) Power supply units for plasma arc cutting
JPS5499293A (en) Electrical discharge machining
JPS5471498A (en) Electric discharge device
SU1673327A1 (en) Installation for electric discharge alloying
JPS61233998A (en) Plasma generator
JPS54147592A (en) Optimum control device for electric discharge machine