GB1124183A - An impulse transformer for electrospark machining - Google Patents

An impulse transformer for electrospark machining

Info

Publication number
GB1124183A
GB1124183A GB1124766A GB1124766A GB1124183A GB 1124183 A GB1124183 A GB 1124183A GB 1124766 A GB1124766 A GB 1124766A GB 1124766 A GB1124766 A GB 1124766A GB 1124183 A GB1124183 A GB 1124183A
Authority
GB
United Kingdom
Prior art keywords
liquid
workpiece
vessel
primary
bars
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
GB1124766A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1124183A publication Critical patent/GB1124183A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F30/00—Fixed transformers not covered by group H01F19/00
    • H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
    • H01F30/16—Toroidal transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1,124,183. Electro erosion. V. L. KRAVCHENKO, and N. G. SHUBIN. 15 March, 1966, No. 11247/66. Heading B3V. [Also in Division H1] An impulse transformer for electrospark machining has a multi-turn primary winding and a single-turn secondary and, together with a tool holder and support for the workpiece, is so located in a vessel containing liquid that the liquid acts both as a coolant and as the working medium. In the arrangement shown, the tool 15 is connected through bus-bars 16 and the vessel 13 to a secondary consisting of top plate 7, casing 7<SP>111</SP> and inner bushing 7<SP>1</SP> whose upper end 711 supports the workpiece 9. A toroidal primary winding 3 on a core 1 of stacked ferrite rings is located in the casing 7111 and is insulated by epoxide compound 2, 10. A socket 6, soldered to the primary 3, receives a plug 4 connected to the high voltage lead 5. The liquid is pumped through an insulating bushing 17 and flow-regulating shutter 33 to the working region and is extracted through channels 18 and drain 19. In a modification (Fig. 2, not shown) the workpiece support is in two parts with co-operating spherical surfaces for alignment and the bus-bars (30) are connected directly to the top plate (7) of the secondary. The primary assembly is mounted on ebonite or fluorine plastics supports (22), (23) within the secondary easing (7<SP>111</SP>) and the high voltage lead (26) is led into the vessel in a pipe (27) which also acts as a liquid overflow. Separate valves (31), (32) control liquid level and draining.
GB1124766A 1966-04-18 1966-03-15 An impulse transformer for electrospark machining Expired GB1124183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0059030 1966-04-18

Publications (1)

Publication Number Publication Date
GB1124183A true GB1124183A (en) 1968-08-21

Family

ID=7228959

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1124766A Expired GB1124183A (en) 1966-04-18 1966-03-15 An impulse transformer for electrospark machining

Country Status (3)

Country Link
CH (1) CH460973A (en)
DE (1) DE1565621A1 (en)
GB (1) GB1124183A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777466A (en) * 1985-04-25 1988-10-11 Senter For Industriforskning Connector arrangement for electrical circuits in underwater installations, and transformer particularly for use in such arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777466A (en) * 1985-04-25 1988-10-11 Senter For Industriforskning Connector arrangement for electrical circuits in underwater installations, and transformer particularly for use in such arrangement

Also Published As

Publication number Publication date
DE1565621A1 (en) 1972-04-06
CH460973A (en) 1968-08-15

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