GB1176981A - A Method and Device for the Electroerosive Machining of Current-Conducting Materials - Google Patents

A Method and Device for the Electroerosive Machining of Current-Conducting Materials

Info

Publication number
GB1176981A
GB1176981A GB946867A GB946867A GB1176981A GB 1176981 A GB1176981 A GB 1176981A GB 946867 A GB946867 A GB 946867A GB 946867 A GB946867 A GB 946867A GB 1176981 A GB1176981 A GB 1176981A
Authority
GB
United Kingdom
Prior art keywords
pulses
erosion
transistorized
current
pulse
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
GB946867A
Inventor
Abram Lazarevich Livshits
Mark Shmulevich Otto
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 METALLORENZHUSCHIKH STAN
Original Assignee
EXNII METALLORENZHUSCHIKH STAN
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
Priority to CH227667A priority Critical patent/CH466452A/en
Application filed by EXNII METALLORENZHUSCHIKH STAN filed Critical EXNII METALLORENZHUSCHIKH STAN
Priority to GB946867A priority patent/GB1176981A/en
Priority to FR119427A priority patent/FR1535301A/en
Publication of GB1176981A publication Critical patent/GB1176981A/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

1,176,981. Electro-erosion. EXPERTMENTALNY NAUCHNO - ISSLEDOVATELSKY INSTITUT METALLOREZHUSCHIKH STANKOV. 28 Feb., 1967, No. 9468/67. Heading B3V. [Also in Division H3] In the electro-erosion of metals, each machining cycle T has at least three pulses of voltage U and current J comprising a high voltage 1 to break down the gap, a high current pulse 2 to melt, evaporate and partially scavenge the products of erosion and a protective pulse 3 to form a protective coating on the electrode. Each cycle comprises a plurality of pulses 1, 2, 3 and a single high voltage and current pulse 4 to complete the scavenging. The ignition pulses 1 are produced by an individual generator 9, Fig. 2, and the other pulses 2, 3, 4 are produced by a master generator 5. Each generator comprises a transistorized blocking oscillator 12, Fig. 3, supplying four transistorized monostable flip-flops, 14-14<SP>111</SP>, which may be connected in series or parallel by switches 13<SP>1</SP>-13<SP>111</SP>. The pulse frequency is varied by a rheostat 18. The output therefrom is passed through a coincidence circuit (15), Fig. 5 (not shown) and a transistorized pre-amplifier (16) to a power amplifier comprising a plurality of power transistors (17). The bases of the latter are supplied through saturable transformers (25) whose secondaries are connected to the collectors to provide positive feedback. A device 10, Fig. 2, is provided to eliminate the effects of a short-circuit.
GB946867A 1967-02-28 1967-02-28 A Method and Device for the Electroerosive Machining of Current-Conducting Materials Expired GB1176981A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH227667A CH466452A (en) 1967-02-28 1967-02-16 Method and device for the electrical discharge machining of electrically conductive metallic materials
GB946867A GB1176981A (en) 1967-02-28 1967-02-28 A Method and Device for the Electroerosive Machining of Current-Conducting Materials
FR119427A FR1535301A (en) 1967-02-28 1967-08-30 Method and device for machining conductive materials by spark erosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB946867A GB1176981A (en) 1967-02-28 1967-02-28 A Method and Device for the Electroerosive Machining of Current-Conducting Materials

Publications (1)

Publication Number Publication Date
GB1176981A true GB1176981A (en) 1970-01-07

Family

ID=9872554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB946867A Expired GB1176981A (en) 1967-02-28 1967-02-28 A Method and Device for the Electroerosive Machining of Current-Conducting Materials

Country Status (2)

Country Link
CH (1) CH466452A (en)
GB (1) GB1176981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503309A (en) * 1978-07-21 1985-03-05 Inoue-Japax Research Incorporated EDM Method and apparatus with successive trains of intermittently enlarged elementary pulses

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2569661T3 (en) 2011-12-30 2016-05-12 Agie Charmilles Sa Method and apparatus of mechanization by electric shock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4503309A (en) * 1978-07-21 1985-03-05 Inoue-Japax Research Incorporated EDM Method and apparatus with successive trains of intermittently enlarged elementary pulses

Also Published As

Publication number Publication date
CH466452A (en) 1968-12-15

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