GB981464A - A method of operating a spark erosion machine and a circuit for performing the method - Google Patents

A method of operating a spark erosion machine and a circuit for performing the method

Info

Publication number
GB981464A
GB981464A GB30767/62A GB3076762A GB981464A GB 981464 A GB981464 A GB 981464A GB 30767/62 A GB30767/62 A GB 30767/62A GB 3076762 A GB3076762 A GB 3076762A GB 981464 A GB981464 A GB 981464A
Authority
GB
United Kingdom
Prior art keywords
gap
source
spark erosion
transistor
capacitor
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
GB30767/62A
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.)
Deutsche Edelstahlwerke AG
AEG AG
Original Assignee
Allgemeine Elektricitaets Gesellschaft
Deutsche Edelstahlwerke AG
AEG AG
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 Allgemeine Elektricitaets Gesellschaft, Deutsche Edelstahlwerke AG, AEG AG filed Critical Allgemeine Elektricitaets Gesellschaft
Publication of GB981464A publication Critical patent/GB981464A/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)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

981,464. Spark erosion. DEUTSCHE EDELSTAHLWERK A.G. and ALLGEMEINE ELEKTRICITATS GESELLSCHAFT. Aug. 10, 1962 [Aug. 12, 1961], No. 30767/62. Heading B3V. In a spark erosion apparatus having an energy storage means 7 charged from a primary supply source, a secondary source 8 is connected across the gap 6 and after de-ionization thereof the resulting build-up in voltage across the gap actuates means 12, 13 to trigger the charging of the storage means 7. Source 1 is preferably D.C. and is connected to capacitor 7 through switch 13 which may be a thermionic valve, transistor, or gas filled discharge tube such as a thyratron and is controlled by voltage responsive means 12. An inductor 5 is in series with the gap 6. In a modification, Fig. 2 (not shown) an auxiliary capacitor is connected across the gap and a rectifier is inserted between the inductor 5 and capacitor 7. In a further embodiment, Fig. 3, the switch 13 is a transistor triggered by a second transistor 12 whose emitter is connected to the junction of a potential divider 17, 18 forming the secondary voltage source.
GB30767/62A 1961-08-12 1962-08-10 A method of operating a spark erosion machine and a circuit for performing the method Expired GB981464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED36792A DE1190594B (en) 1961-08-12 1961-08-12 Circuit arrangement for EDM machines

Publications (1)

Publication Number Publication Date
GB981464A true GB981464A (en) 1965-01-27

Family

ID=7043289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30767/62A Expired GB981464A (en) 1961-08-12 1962-08-10 A method of operating a spark erosion machine and a circuit for performing the method

Country Status (5)

Country Link
US (1) US3259795A (en)
BE (1) BE619509A (en)
CH (1) CH407361A (en)
DE (1) DE1190594B (en)
GB (1) GB981464A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053502A (en) * 1964-01-20
US3916138A (en) * 1964-02-25 1975-10-28 Charmilles Sa Ateliers Apparatus for machining through varying-frequency constant-duration pulse-controlled electric discharges
DE1299204B (en) * 1965-01-16 1969-07-10 Aeg Elotherm Gmbh Circuit arrangement for a spark erosion machine with memoryless generator and checking the machining gap
US3365612A (en) * 1965-08-12 1968-01-23 Ingersol Milling Machine Compa Dual source spark machining power supply
NL6513424A (en) * 1965-10-16 1967-04-17
US3548257A (en) * 1968-04-23 1970-12-15 Ex Cell O Corp Electric circuit start-up protection method and structure
US3597570A (en) * 1968-05-27 1971-08-03 Mitsubishi Electric Corp Device for detecting sustained arcing across electrospark machining gaps
US3604885A (en) * 1968-07-05 1971-09-14 Inoue K Edm power supply for generating self-adaptive discharge pulses
US3585340A (en) * 1968-09-16 1971-06-15 Everard M Williams Dr Electric discharge machining circuit for eliminating concentrated discharges
JPS5937174B2 (en) * 1980-02-16 1984-09-07 ファナック株式会社 electrical discharge machining power supply
JPS61274814A (en) * 1985-05-30 1986-12-05 Fanuc Ltd Electric discharge machining power supply

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606308A (en) * 1951-03-15 1952-08-05 American Speedlight Corp Electronic flash device
US2773168A (en) * 1953-01-22 1956-12-04 Firth Sterling Inc High-speed spark machining apparatus
NL94837C (en) * 1954-10-01
US2979639A (en) * 1958-06-09 1961-04-11 Firth Sterling Inc Pilot pulse spark machining methods and apparatus
DE1110781B (en) * 1959-07-29 1961-07-13 Siemens Ag AC-fed electrical discharge machine with automatic power limitation
US3200234A (en) * 1962-03-29 1965-08-10 Union Carbide Corp Electric percussion-welding of surface layers

Also Published As

Publication number Publication date
CH407361A (en) 1966-02-15
DE1190594B (en) 1965-04-08
US3259795A (en) 1966-07-05
BE619509A (en) 1962-10-15

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