GB786775A - Electrolytic grinding apparatus - Google Patents

Electrolytic grinding apparatus

Info

Publication number
GB786775A
GB786775A GB5416/54A GB541654A GB786775A GB 786775 A GB786775 A GB 786775A GB 5416/54 A GB5416/54 A GB 5416/54A GB 541654 A GB541654 A GB 541654A GB 786775 A GB786775 A GB 786775A
Authority
GB
United Kingdom
Prior art keywords
coil
interface
shaft
current
output
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
GB5416/54A
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.)
Norton Grinding Wheel Co Ltd
Original Assignee
Norton Grinding Wheel 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 Norton Grinding Wheel Co Ltd filed Critical Norton Grinding Wheel Co Ltd
Publication of GB786775A publication Critical patent/GB786775A/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
    • B23H5/00—Combined machining
    • B23H5/06—Electrochemical machining combined with mechanical working, e.g. grinding or honing
    • B23H5/08—Electrolytic grinding

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)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

786,775. Resistance measuring. NORTON GRINDING WHEEL CO., Ltd. Feb. 24, 1954 [April 13, 1953], No. 5416/54. Class 37. [Also in Group XXXV] In a control system for an electrolytic grinder (see Group XXXV), the resistance at the interface between the work Wand the grinding element CR<SP>1</SP> is computed by passing interface current and voltage signals in respective opposed torque coils 134, 135 fixed to the shaft 131 of an electro-dynamometer device, the current signal being derived over a rectifier bridge RB<SP>1</SP> from saturable inductors 106 associated with the current leads. The coil 135 moves in the field of a permanent magnet 138, and coil 134 coacts with a fixed coil 137 energized in series with a resistor R13 from the output of a photocell-amplifier unit 145, 146, the latter being responsive to the position of shaft 131 by means of a mirror 141 reflecting light from a source 142 on to the photo-cells. Since the net torque produced by coils 134, 137 represents the product of interface current and photo-cell-amplifier output, and in the equilibrium position of the shaft this torque balances that due to the voltage coil 135, the output to resistor R13 represents the interface resistance. Specification 775,765, [Group XXXV], is referred to. Reference has been directed by the Comptroller to Specification 761,483.
GB5416/54A 1953-04-13 1954-02-24 Electrolytic grinding apparatus Expired GB786775A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US348285A US2783199A (en) 1953-04-13 1953-04-13 Electrolytic grinding apparatus

Publications (1)

Publication Number Publication Date
GB786775A true GB786775A (en) 1957-11-27

Family

ID=23367370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5416/54A Expired GB786775A (en) 1953-04-13 1954-02-24 Electrolytic grinding apparatus

Country Status (3)

Country Link
US (1) US2783199A (en)
FR (1) FR1099657A (en)
GB (1) GB786775A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004910A (en) * 1952-09-18 1961-10-17 George F Keeleric Apparatus for electrolytic cutting, shaping and grinding
US2950239A (en) * 1956-03-02 1960-08-23 Anocut Eng Co Control system for electrolytic grinding
US2919522A (en) * 1958-05-23 1960-01-05 Hammond Machinery Builders Inc Machine tool
US3058895A (en) * 1958-11-10 1962-10-16 Anocut Eng Co Electrolytic shaping
US3183176A (en) * 1960-07-28 1965-05-11 Steel Improvement & Forge Co Apparatus for electrolytically treating the interior of a bore
US3117919A (en) * 1961-02-10 1964-01-14 George F Keeleric Electric supply system for electrolytic grinding
DE1298855B (en) * 1961-12-16 1969-07-03 Wicher Guenther Contact disc for the electrolytic grinding of workpieces

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2092859A (en) * 1935-08-27 1937-09-14 Union Switch & Signal Co Electrical regulating apparatus for rectifiers
US2084870A (en) * 1935-10-10 1937-06-22 Gen Electric System of electrical distribution
US2245192A (en) * 1938-02-19 1941-06-10 Gen Electric Electromagnetic controller
US2287755A (en) * 1938-11-30 1942-06-23 Siemens App Und Maschinen Gmbh Power amplifier
US2488856A (en) * 1943-11-24 1949-11-22 Clark Controller Co Automatic electric regulation of electroplating apparatus
US2545413A (en) * 1946-10-29 1951-03-13 Alais & Froges & Camarque Cie Apparatus for automatic regulation of electrolytic cells
US2547615A (en) * 1948-10-26 1951-04-03 Gen Electric Saturable core reactor

Also Published As

Publication number Publication date
US2783199A (en) 1957-02-26
FR1099657A (en) 1955-09-08

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