GB737029A - Improvements relating to apparatus for cutting materials - Google Patents

Improvements relating to apparatus for cutting materials

Info

Publication number
GB737029A
GB737029A GB1005453A GB1005453A GB737029A GB 737029 A GB737029 A GB 737029A GB 1005453 A GB1005453 A GB 1005453A GB 1005453 A GB1005453 A GB 1005453A GB 737029 A GB737029 A GB 737029A
Authority
GB
United Kingdom
Prior art keywords
electrode
supply
spark
motor
field
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
GB1005453A
Inventor
Graham John Scoles
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB1005453A priority Critical patent/GB737029A/en
Publication of GB737029A publication Critical patent/GB737029A/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

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

737,029. Automatic control systems for spark cutting apparatus. METROPOLITANVICKERS ELECTRICAL CO., Ltd. March 26, 1954 [April 13, 1953], No. 10054/53. Class 38 (4). [Also in Group XXII] In an automatic electrode feed system for spark cutting apparatus of the kind in which an electrode and the workpiece are immersed in paraffin, and a recurrent spark passed between them by charging a condenser from a D.C. supply and discharging it across the electrode gap, the electrode is actuated by a split field electric motor, one field of which is in series with the D.C. supply. The motor has its armature A across the D.C. supply, and one field winding F2 in series with the limiting resistor R3 and the electrode and workpiece E, W, across which latter is connected the condenser C. The second field winding F1 is constantly excited by being connected across the D.C. supply and opposes the first winding. By means of resistors R1 and R4 the currents through F1 and F2 are made equal when the correct average current is flowing through the spark gap. Deviations then cause the motor to run in a corrective direction. A short-circuited generator G and a paddle P on the motor shaft provide damping.
GB1005453A 1953-04-13 1953-04-13 Improvements relating to apparatus for cutting materials Expired GB737029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1005453A GB737029A (en) 1953-04-13 1953-04-13 Improvements relating to apparatus for cutting materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1005453A GB737029A (en) 1953-04-13 1953-04-13 Improvements relating to apparatus for cutting materials

Publications (1)

Publication Number Publication Date
GB737029A true GB737029A (en) 1955-09-21

Family

ID=9960602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1005453A Expired GB737029A (en) 1953-04-13 1953-04-13 Improvements relating to apparatus for cutting materials

Country Status (1)

Country Link
GB (1) GB737029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465013B1 (en) * 1963-12-10 1971-01-14 Eksperimental Nyj Ni Skij I Me Working head for electrical discharge machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1465013B1 (en) * 1963-12-10 1971-01-14 Eksperimental Nyj Ni Skij I Me Working head for electrical discharge machines

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