FR2453446A1 - Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts. - Google Patents

Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts.

Info

Publication number
FR2453446A1
FR2453446A1 FR7908645A FR7908645A FR2453446A1 FR 2453446 A1 FR2453446 A1 FR 2453446A1 FR 7908645 A FR7908645 A FR 7908645A FR 7908645 A FR7908645 A FR 7908645A FR 2453446 A1 FR2453446 A1 FR 2453446A1
Authority
FR
France
Prior art keywords
thyristors
carried out
electronic circuit
out simultaneously
several workpieces
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
FR7908645A
Other languages
French (fr)
Other versions
FR2453446B1 (en
Inventor
Petru Dumitrache
Lupescu
Vasile Ion Burla
Petru Mitroi
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.)
Institutul de Cercetari Pentru Industria Electro Tehnica
Original Assignee
Institutul de Cercetari Pentru Industria Electro Tehnica
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 Institutul de Cercetari Pentru Industria Electro Tehnica filed Critical Institutul de Cercetari Pentru Industria Electro Tehnica
Priority to FR7908645A priority Critical patent/FR2453446A1/en
Publication of FR2453446A1 publication Critical patent/FR2453446A1/en
Application granted granted Critical
Publication of FR2453446B1 publication Critical patent/FR2453446B1/fr
Granted 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
    • B23H3/00—Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
    • B23H3/02—Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A mains electricity supply is fed via a transformer to a bridge rectifier providing the current used in deburring. The rectifier is actuated by a controller, which is fed with a desired voltage via a potentiometer; in the controller, the actual voltage is compared with the desired voltage and a second controller uses thyristors to close the electric circuit for each workpiece. The pref. appts. includes selective electronic protection devices employed to block the thyristors if a short circuit exists, e.g. due to very large burr on a workpiece.
FR7908645A 1979-04-05 1979-04-05 Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts. Granted FR2453446A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7908645A FR2453446A1 (en) 1979-04-05 1979-04-05 Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7908645A FR2453446A1 (en) 1979-04-05 1979-04-05 Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts.

Publications (2)

Publication Number Publication Date
FR2453446A1 true FR2453446A1 (en) 1980-10-31
FR2453446B1 FR2453446B1 (en) 1984-07-20

Family

ID=9224001

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908645A Granted FR2453446A1 (en) 1979-04-05 1979-04-05 Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts.

Country Status (1)

Country Link
FR (1) FR2453446A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008916A1 (en) * 1992-10-08 1994-04-28 Martech Services Limited Electrochemical treatment of reinforced concrete

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2031005A5 (en) * 1969-07-31 1970-11-13 Bosch Electrolytic removal of metal from a - workpiece
FR2102346A7 (en) * 1970-08-19 1972-04-07 Bosch
US3779888A (en) * 1967-01-17 1973-12-18 Siemens Ag Device for limiting the short-circuit energy in electrolytic metal-forming apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779888A (en) * 1967-01-17 1973-12-18 Siemens Ag Device for limiting the short-circuit energy in electrolytic metal-forming apparatus
FR2031005A5 (en) * 1969-07-31 1970-11-13 Bosch Electrolytic removal of metal from a - workpiece
FR2102346A7 (en) * 1970-08-19 1972-04-07 Bosch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008916A1 (en) * 1992-10-08 1994-04-28 Martech Services Limited Electrochemical treatment of reinforced concrete

Also Published As

Publication number Publication date
FR2453446B1 (en) 1984-07-20

Similar Documents

Publication Publication Date Title
FR2453446A1 (en) Electrochemical deburring of several workpieces - is carried out simultaneously using electronic circuit contg. thyristors to control appts.
ES475567A1 (en) Control circuit for a direct current motor
ES8505495A1 (en) Switch arrangement for electrical tools.
ATE4969T1 (en) REGULATED WELDING CYCLE.
JPS57184614A (en) Magnetic drilling machine
DE3667869D1 (en) SWITCHING DEVICE FOR COMPUTER-CONTROLLED MACHINE TOOLS.
EP0241250A3 (en) Switching mode power supply
JPS5768684A (en) Controller for speed of direct current shunt motor
JPS5789521A (en) Method and equipment for electric discharge machining
JPS5321088A (en) Power source unit for electrolysis apparatus
FR2430687A2 (en) LV regulated source for welding arc - has thyristor circuit in primary of multiple winding transformer
DE3561783D1 (en) Device for generating thyristor control pulses to supply an inductance for controlling the reactive power of an electrical network
JPS5312058A (en) Dc power controlling apparatus
JPS5741129A (en) Electric conduction machining process and its equipment
JPS57112981A (en) Controller for resistance welding
JPS5762630A (en) Control circuit device
JPS6454146A (en) Control device for ventilation fan
JPS5415152A (en) Ac zero volt switch circuit
JPS5426422A (en) Low reactive power device for external commutated inverter
JPS5736502A (en) Chopper circuit for electric motor vehicle
JPS5216643A (en) Half circuit operation current regulation method for bipolar dc power transmission line and semiiautomatic regulator device thereby
JPS5796727A (en) Wirecut electric discharge machining device
JPS5313119A (en) Control method of non-rectifier motors
JPS5426421A (en) Reactive power control system for external commutated inverter
JPS5391361A (en) Power supply device

Legal Events

Date Code Title Description
ST Notification of lapse