JPS5554139A - Discharge processing system - Google Patents

Discharge processing system

Info

Publication number
JPS5554139A
JPS5554139A JP13808479A JP13808479A JPS5554139A JP S5554139 A JPS5554139 A JP S5554139A JP 13808479 A JP13808479 A JP 13808479A JP 13808479 A JP13808479 A JP 13808479A JP S5554139 A JPS5554139 A JP S5554139A
Authority
JP
Japan
Prior art keywords
discharge
time
processing
processing gap
transistor groups
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
JP13808479A
Other languages
Japanese (ja)
Other versions
JPS6057971B2 (en
Inventor
Kazuhiko Kobayashi
Nagao Saito
Toshiro Oizumi
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 JP54138084A priority Critical patent/JPS6057971B2/en
Publication of JPS5554139A publication Critical patent/JPS5554139A/en
Publication of JPS6057971B2 publication Critical patent/JPS6057971B2/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

Landscapes

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

Abstract

PURPOSE:To enable at all times a stable processing, by impressing a pulse voltage to a processing gap, and by regulating a discharge duration according to a time in the case the time until discharge at the processing gap is within a reference value. CONSTITUTION:Transistor groups 3A-3N are closed by means of signals from an amplifier 7, a voltage being impressed to a processing gap provided between a discharge processing electrode 1 and an object 2 to be processed. Discharging then starts in a certain time lag, a discharge-starting being detected by means of a no- load voltage impressing time measuring device 18 via a resistor 17. Thus, a no-load voltage impressing time, which has elapsed before discharge is generated, is measured. A discharge duration is regulated by a discharge duration control device 20 according to said measuring results and the output of a processing gap condition detector 19, said transistor groups being opened after a given time has elapsed. Said circuit-opening time, during which the transistor groups are left opened, is decided by means of a quiescent time measuring device 21.
JP54138084A 1979-10-25 1979-10-25 Electric discharge machining method Expired JPS6057971B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54138084A JPS6057971B2 (en) 1979-10-25 1979-10-25 Electric discharge machining method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54138084A JPS6057971B2 (en) 1979-10-25 1979-10-25 Electric discharge machining method

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP12749872A Division JPS5722688B2 (en) 1972-12-19 1972-12-19

Publications (2)

Publication Number Publication Date
JPS5554139A true JPS5554139A (en) 1980-04-21
JPS6057971B2 JPS6057971B2 (en) 1985-12-18

Family

ID=15213573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54138084A Expired JPS6057971B2 (en) 1979-10-25 1979-10-25 Electric discharge machining method

Country Status (1)

Country Link
JP (1) JPS6057971B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047451A1 (en) * 2006-10-20 2008-04-24 Mitsubishi Electric Corporation Power supply control unit of electric discharge machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4992696A (en) * 1972-12-19 1974-09-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4992696A (en) * 1972-12-19 1974-09-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008047451A1 (en) * 2006-10-20 2008-04-24 Mitsubishi Electric Corporation Power supply control unit of electric discharge machine
DE112006004049B4 (en) * 2006-10-20 2010-06-17 Mitsubishi Electric Corp. Power supply control unit for an electric discharge machining apparatus
JP4833197B2 (en) * 2006-10-20 2011-12-07 三菱電機株式会社 Power control device for electrical discharge machine
US8420973B2 (en) 2006-10-20 2013-04-16 Mitsubishi Electric Corporation Power-supply control device for electrical discharge machining apparatus

Also Published As

Publication number Publication date
JPS6057971B2 (en) 1985-12-18

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