GB1191316A - Device for Eliminating Short-circuits in Spark-erosion Machines - Google Patents

Device for Eliminating Short-circuits in Spark-erosion Machines

Info

Publication number
GB1191316A
GB1191316A GB2943767A GB2943767A GB1191316A GB 1191316 A GB1191316 A GB 1191316A GB 2943767 A GB2943767 A GB 2943767A GB 2943767 A GB2943767 A GB 2943767A GB 1191316 A GB1191316 A GB 1191316A
Authority
GB
United Kingdom
Prior art keywords
transistor
spark
circuits
erosion
june
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
GB2943767A
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.)
EXNII METALLOREZH STANKOV
Original Assignee
EXNII METALLOREZH STANKOV
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 EXNII METALLOREZH STANKOV filed Critical EXNII METALLOREZH STANKOV
Publication of GB1191316A publication Critical patent/GB1191316A/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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

1,191,316. Spark erosion. EXPERIMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKH STANKOV. 26 June, 1967 [25 June, 1966], No. 29437/67. Heading B3V. [Also in Division H2] In an arrangement for protecting against short-circuiting at the erosion gap 2 of a sparkerosion machine having a low-voltage power source and a low-power ignition source supplied by transistors (not shown) under the control of a master oscillator 13, a drop in voltage across the gap 2 causes a transistor 15 to conduct to cut off a transistor 16. This blocks a diode 22 and causes an oscillator 20 to oscillate and charge a capacitor 26 until a transistor 27 conducts to stop the oscillation of the master oscillator 13. Reconnection of the machine may be effected by recharging a capacitor 17 to cut-off the transistor 15.
GB2943767A 1966-06-25 1967-06-26 Device for Eliminating Short-circuits in Spark-erosion Machines Expired GB1191316A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1083797A SU468752A1 (en) 1966-06-25 1966-06-25 Device for the elimination of short circuits for EDM machines

Publications (1)

Publication Number Publication Date
GB1191316A true GB1191316A (en) 1970-05-13

Family

ID=20439416

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2943767A Expired GB1191316A (en) 1966-06-25 1967-06-26 Device for Eliminating Short-circuits in Spark-erosion Machines

Country Status (4)

Country Link
CH (1) CH507775A (en)
DE (1) DE1615237B1 (en)
GB (1) GB1191316A (en)
SU (1) SU468752A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350863A (en) * 1978-03-07 1982-09-21 Inoue-Japax Research Incorporated High-frequency power feeder circuitry and supply for electrical discharge machining
HU177806B (en) * 1979-11-15 1981-12-28 Hiradastechnikai Gepgyar Arrangement for the pulse generator of a spark machining equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213319A (en) * 1960-05-02 1965-10-19 Inoue Kiyoshi Spark discharge machining apparatus with means for clearing short-circuit fusions
US3229159A (en) * 1960-05-16 1966-01-11 Elox Corp Michigan Superimposed high striking voltage circuit

Also Published As

Publication number Publication date
DE1615237B1 (en) 1971-02-04
CH507775A (en) 1971-05-31
SU468752A1 (en) 1975-04-30

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Legal Events

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