GB2110144B - Method of and apparatus for timing spark machining pulses - Google Patents

Method of and apparatus for timing spark machining pulses

Info

Publication number
GB2110144B
GB2110144B GB08230652A GB8230652A GB2110144B GB 2110144 B GB2110144 B GB 2110144B GB 08230652 A GB08230652 A GB 08230652A GB 8230652 A GB8230652 A GB 8230652A GB 2110144 B GB2110144 B GB 2110144B
Authority
GB
United Kingdom
Prior art keywords
spark
timer
voltage pulse
machining
delay time
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.)
Expired
Application number
GB08230652A
Other versions
GB2110144A (en
Inventor
Gyorgy Vermes
Jozsef Istvan
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.)
HIRADASTECHNIKAI GEPGYAR
Original Assignee
HIRADASTECHNIKAI GEPGYAR
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 HIRADASTECHNIKAI GEPGYAR filed Critical HIRADASTECHNIKAI GEPGYAR
Publication of GB2110144A publication Critical patent/GB2110144A/en
Application granted granted Critical
Publication of GB2110144B publication Critical patent/GB2110144B/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
    • 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
    • B23H7/16—Electric circuits specially adapted therefor, e.g. power supply for preventing short circuits or other abnormal discharges by altering machining parameters using adaptive control

Abstract

A method of timing spark machining pulses for use in spark machining of work pieces comprises the steps of connecting a tool electrode and a work piece electrode separated by a spark gap (1) to respective output terminals of a supply unit, generating a voltage pulse, decreasing current intensity related to the voltage pulse to zero following the spark-over delayed with a delay time, and generating after an interval a new voltage pulse. The duration of the intervals is regulated in dependence on the average value of the delay time or on machining conditions. An apparatus for performing this method has a pulse generator (2) connected into the spark gap (1), a timer (8) and an optimum finder (7) which is connected to the input of the timer (8), wherein the output of the timer (8) is connected to the pulse generator (2) and to the optimum finder (7). <IMAGE>
GB08230652A 1981-11-16 1982-10-27 Method of and apparatus for timing spark machining pulses Expired GB2110144B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU813426A HU186439B (en) 1981-11-16 1981-11-16 Method and apparatus for timing spark-machining pulses

Publications (2)

Publication Number Publication Date
GB2110144A GB2110144A (en) 1983-06-15
GB2110144B true GB2110144B (en) 1985-09-11

Family

ID=10963976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08230652A Expired GB2110144B (en) 1981-11-16 1982-10-27 Method of and apparatus for timing spark machining pulses

Country Status (4)

Country Link
CH (1) CH660548GA3 (en)
DE (1) DE3238001A1 (en)
GB (1) GB2110144B (en)
HU (1) HU186439B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709433A1 (en) * 1987-03-21 1988-09-29 Aeg Elotherm Gmbh METHOD AND DEVICE FOR THE ELECTROCHEMICAL MACHINING OF WORKPIECES

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH407362A (en) * 1964-02-25 1966-02-15 Charmilles Sa Ateliers Machining process by intermittent electrical discharges with controlled pulses
US3536881A (en) * 1967-10-21 1970-10-27 Inoue K Constant current density edm system capable of automatically responding to changing machining area
CH525061A (en) * 1969-02-07 1972-07-15 Kondo Iwao Machining device operating by means of electrical discharges
JPS4956295A (en) * 1972-09-30 1974-05-31
JPS569128A (en) * 1979-06-30 1981-01-30 Inoue Japax Res Inc Electric discharge machining device

Also Published As

Publication number Publication date
GB2110144A (en) 1983-06-15
DE3238001C2 (en) 1988-09-29
HU186439B (en) 1985-07-29
CH660548GA3 (en) 1987-05-15
DE3238001A1 (en) 1983-05-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee