GB859003A - Improvements in or relating to apparatus for treating metal by electro-erosion - Google Patents

Improvements in or relating to apparatus for treating metal by electro-erosion

Info

Publication number
GB859003A
GB859003A GB1478857A GB1478857A GB859003A GB 859003 A GB859003 A GB 859003A GB 1478857 A GB1478857 A GB 1478857A GB 1478857 A GB1478857 A GB 1478857A GB 859003 A GB859003 A GB 859003A
Authority
GB
United Kingdom
Prior art keywords
voltage
motor
erosion
electro
workpiece
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
GB1478857A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens 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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Priority to DEC5474U priority Critical patent/DE1793724U/en
Publication of GB859003A publication Critical patent/GB859003A/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
    • B23H7/18—Electric circuits specially adapted therefor, e.g. power supply for maintaining or controlling the desired spacing between electrode and workpiece

Abstract

859,003. Automatic control systems for electro-erosion. SIEMENS - SCHUCKERTWERKE A.G. May 9,1957 [May 9, 1956], No. 14788/57. Class 38 (4). In apparatus for the electro-erosion of metal an electric motor drives means adjusting the relative positions of the electrode and workpiece, the motor being controlled by a magnetic amplifier to keep the working voltage between the electrodes constant. The workpiece 1 and counter-electrode 2 are spark-energized from converter 4. The gap voltage across terminals 7, 8 is in series-opposition with a reference voltage 6 in a circuit including a rectifier 9 to suppress extraneous negative voltage peaks, a rheostat 10 to provide sensitivity control, the output of a bridge circuit across terminals 17, 18 and the control windings 5A of a push-pull magnetic amplifier 5. The output of the amplifier is applied through leads 11, 12 or 13, 14 depending on polarity, to the bridge circuit in one arm of which is the D.C. motor armature 3a. When a voltage is applied to the bridge circuit the motor is energized and its back E.M.F. produces an unbalance voltage across terminals 17, 18. This voltage is applied as feed-back to the control windings producing more rapid response in the system. The motor adjusts the position of the counter-electrode relative to the workpiece.
GB1478857A 1956-05-09 1957-05-09 Improvements in or relating to apparatus for treating metal by electro-erosion Expired GB859003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC5474U DE1793724U (en) 1957-05-09 1958-04-21 DEVICE FOR DISTRIBUTING A TREATMENT LIQUID OVER MOVING FIBER MATERIAL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES48656A DE1058654B (en) 1956-05-09 1956-05-09 Switching arrangement for electrical discharge machining with automatic feed control

Publications (1)

Publication Number Publication Date
GB859003A true GB859003A (en) 1961-01-18

Family

ID=7486948

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1478857A Expired GB859003A (en) 1956-05-09 1957-05-09 Improvements in or relating to apparatus for treating metal by electro-erosion

Country Status (5)

Country Link
BE (1) BE557324A (en)
CH (1) CH358170A (en)
DE (1) DE1058654B (en)
FR (1) FR1178485A (en)
GB (1) GB859003A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170566B (en) * 1960-06-24 1964-05-21 Abram L Liwschitz Switching arrangement for electrode feed control in electrical erosion devices using magnetic amplifiers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2362569A (en) * 1943-01-27 1944-11-14 Linde Air Prod Co Automatic electric control system

Also Published As

Publication number Publication date
BE557324A (en)
FR1178485A (en) 1959-05-11
CH358170A (en) 1961-11-15
DE1058654B (en) 1959-06-04

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