GB1068440A - Improvements in spark discharge electrodes for electrohydraulic systems - Google Patents

Improvements in spark discharge electrodes for electrohydraulic systems

Info

Publication number
GB1068440A
GB1068440A GB4270364A GB4270364A GB1068440A GB 1068440 A GB1068440 A GB 1068440A GB 4270364 A GB4270364 A GB 4270364A GB 4270364 A GB4270364 A GB 4270364A GB 1068440 A GB1068440 A GB 1068440A
Authority
GB
United Kingdom
Prior art keywords
members
tube
bonded
spark discharge
electrode
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
GB4270364A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1068440A publication Critical patent/GB1068440A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/52—Sparking plugs characterised by a discharge along a surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/06—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves
    • B21D26/12—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure by shock waves initiated by spark discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • B26F1/28—Perforating by non-mechanical means, e.g. by fluid jet by electrical discharges
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • G10K15/06—Sound-producing devices using electric discharge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0059—Arc discharge tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

1,068,440. Discharge apparatus. GENERAL ELECTRIC CO. Oct. 20, 1964 [Nov. 13, 1963], No. 42703/64. Heading H1X. The dielectric 23 in a spark discharge electrode is a bonded particulated material which is bonded to conductive members 16 and 17. The material is preferably so composed as to be eroded at the same rate as the members 16 and 17 when used in an electrohydraulic system. The members 16 and 17 may be a stainless steel tube and a brass rod respectively, and may be of unequal lengths as shown, or of equal lengths. Other suitable conductive materials are copper and steel. The material 23 may be a mixture of powdered alumina and a cured liquid epoxy resin-catalyst composition in approximately equal parts. Other suitable ceramic materials are zirconia and calcium carbonate. Asbestos or glass fibres may be incorporated in the ceramic. Working fluid is supplied through a water jacket 19 slidably mounted on the tube 16 and connected by a spring 20 to a brass connector-ring 24 secured to the tube 16. The electrode may be connected via a coaxial cable 28 to a circuit described in Specification 1,047,730.
GB4270364A 1963-11-13 1964-10-20 Improvements in spark discharge electrodes for electrohydraulic systems Expired GB1068440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32336263A 1963-11-13 1963-11-13

Publications (1)

Publication Number Publication Date
GB1068440A true GB1068440A (en) 1967-05-10

Family

ID=23258887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4270364A Expired GB1068440A (en) 1963-11-13 1964-10-20 Improvements in spark discharge electrodes for electrohydraulic systems

Country Status (4)

Country Link
DE (1) DE1254896B (en)
GB (1) GB1068440A (en)
NL (1) NL6413034A (en)
SE (1) SE321841B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511201A1 (en) * 1981-08-07 1983-02-11 Pk Bjuro Electrohydraulic forming electrode - with cushioned insulator end piece and two=part chuck
US7516634B1 (en) 2008-05-05 2009-04-14 Ford Global Technologies, Llc Electrohydraulic forming tool
US7802457B2 (en) 2008-05-05 2010-09-28 Ford Global Technologies, Llc Electrohydraulic forming tool and method of forming sheet metal blank with the same
US7810366B2 (en) 2008-05-05 2010-10-12 Ford Global Technologies, Llc Electrohydraulic trimming, flanging, and hemming of blanks
US7827838B2 (en) 2008-05-05 2010-11-09 Ford Global Technologies, Llc Pulsed electro-hydraulic calibration of stamped panels
US7905129B1 (en) 2009-09-21 2011-03-15 Ford Global Technologies, Llc Method and tool for contracting tubular members by electro-hydraulic forming before hydroforming
CN103236649A (en) * 2013-04-15 2013-08-07 西北工业大学 Preparation method of discharge electrode high-strength insulation structure
US8534106B2 (en) 2009-10-19 2013-09-17 Ford Global Technologies, Llc Hydromechanical drawing process and machine
US8567223B2 (en) 2009-09-21 2013-10-29 Ford Global Technologies, Llc Method and tool for expanding tubular members by electro-hydraulic forming

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533124A1 (en) * 1985-09-17 1987-03-26 Bosch Gmbh Robert SPARK PLUG WITH GLIDING RANGE

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2511201A1 (en) * 1981-08-07 1983-02-11 Pk Bjuro Electrohydraulic forming electrode - with cushioned insulator end piece and two=part chuck
US7516634B1 (en) 2008-05-05 2009-04-14 Ford Global Technologies, Llc Electrohydraulic forming tool
US7802457B2 (en) 2008-05-05 2010-09-28 Ford Global Technologies, Llc Electrohydraulic forming tool and method of forming sheet metal blank with the same
US7810366B2 (en) 2008-05-05 2010-10-12 Ford Global Technologies, Llc Electrohydraulic trimming, flanging, and hemming of blanks
US7827838B2 (en) 2008-05-05 2010-11-09 Ford Global Technologies, Llc Pulsed electro-hydraulic calibration of stamped panels
US7905129B1 (en) 2009-09-21 2011-03-15 Ford Global Technologies, Llc Method and tool for contracting tubular members by electro-hydraulic forming before hydroforming
US8567223B2 (en) 2009-09-21 2013-10-29 Ford Global Technologies, Llc Method and tool for expanding tubular members by electro-hydraulic forming
US8534106B2 (en) 2009-10-19 2013-09-17 Ford Global Technologies, Llc Hydromechanical drawing process and machine
US9375775B2 (en) 2009-10-19 2016-06-28 Ford Global Technologies, Llc Hydromechanical drawing process and machine
CN103236649A (en) * 2013-04-15 2013-08-07 西北工业大学 Preparation method of discharge electrode high-strength insulation structure

Also Published As

Publication number Publication date
NL6413034A (en) 1965-05-14
DE1254896B (en) 1967-11-23
SE321841B (en) 1970-03-16

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