GB1165902A - Improvements in Electrohydraulic Forming - Google Patents

Improvements in Electrohydraulic Forming

Info

Publication number
GB1165902A
GB1165902A GB1970066A GB1970066A GB1165902A GB 1165902 A GB1165902 A GB 1165902A GB 1970066 A GB1970066 A GB 1970066A GB 1970066 A GB1970066 A GB 1970066A GB 1165902 A GB1165902 A GB 1165902A
Authority
GB
United Kingdom
Prior art keywords
die
electrodes
preform
tubular
discharge
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
GB1970066A
Inventor
Geoffrey Hodgson
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1970066A priority Critical patent/GB1165902A/en
Publication of GB1165902A publication Critical patent/GB1165902A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1,165,902. Stamping. NATIONAL RESEARCH DEVELOPMENT CORP. 4 Aug., 1967 [4 May, 1966], No. 19700/66. Heading B3Q. [Also in Divisions B5 and H1] An article is formed by forcing a metal or plastics preform into a mould by the use of hydrostatic pressure supplemented by shock wave pressure caused by an electrical discharge in the hydraulic medium. In the embodiment shown in the Figure, a tubular preform 30 is attached at both ends to caps 38a and 38b and located within a vented tubular die 34, itself located within a fixed holder 32 and an hydraulically movable holder 34. Also located within the die is a pair of relatively adjustable electrodes 68a, 68b. In operation, fluid at a pressure sufficient to subject the tube to a force just below its yield point is introduced into the die through passage 44, after which a spark is produced between the electrodes. In a second embodiment, not shown, a sheet is clamped over a die and forced into the die by the discharge of an electrode assembly centrally located in a chamber in which the die is located.
GB1970066A 1966-05-04 1966-05-04 Improvements in Electrohydraulic Forming Expired GB1165902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1970066A GB1165902A (en) 1966-05-04 1966-05-04 Improvements in Electrohydraulic Forming

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1970066A GB1165902A (en) 1966-05-04 1966-05-04 Improvements in Electrohydraulic Forming

Publications (1)

Publication Number Publication Date
GB1165902A true GB1165902A (en) 1969-10-01

Family

ID=10133746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1970066A Expired GB1165902A (en) 1966-05-04 1966-05-04 Improvements in Electrohydraulic Forming

Country Status (1)

Country Link
GB (1) GB1165902A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447761A1 (en) * 1979-01-31 1980-08-29 Barras Provence Expansion of tube in collar or plate to make welded joint - where electric arc evaporates liq. in tube to obtain sudden hydraulic forming pressure
US7516634B1 (en) 2008-05-05 2009-04-14 Ford Global Technologies, Llc Electrohydraulic forming tool
FR2933321A1 (en) * 2008-07-04 2010-01-08 Nantes Ecole Centrale Electro-hydraulic machine-tool electrode for shaping e.g. metal tube, has conducting element, where non-insulated part of element and uncovered parts of insulator layer and material layer permit passage of electrical discharge within fluid
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
RU2497622C2 (en) * 2011-12-28 2013-11-10 Борис Иванович Бутаков Method of hydroelectric expansion of sleeves
RU2521167C1 (en) * 2012-12-21 2014-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "ВЯТСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ" (ФГБОУ ВПО "ВятГУ") Production of steeply curved thin-wall preset-shape pipes
CN104785605A (en) * 2015-03-31 2015-07-22 西北工业大学 Electro-hydraulic forming device for pipe fitting and forming method
CN110000269A (en) * 2019-05-21 2019-07-12 哈尔滨工业大学 A kind of tubing local feature electro-hydraulic forming device and its manufacturing process
RU2696117C1 (en) * 2018-12-01 2019-07-31 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") Device for deep electrohydrompulsive drawing of thin-sheet metals
RU198415U1 (en) * 2019-11-21 2020-07-06 федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) Electro-hydraulic device for machining materials

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447761A1 (en) * 1979-01-31 1980-08-29 Barras Provence Expansion of tube in collar or plate to make welded joint - where electric arc evaporates liq. in tube to obtain sudden hydraulic forming pressure
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
FR2933321A1 (en) * 2008-07-04 2010-01-08 Nantes Ecole Centrale Electro-hydraulic machine-tool electrode for shaping e.g. metal tube, has conducting element, where non-insulated part of element and uncovered parts of insulator layer and material layer permit passage of electrical discharge within fluid
RU2497622C2 (en) * 2011-12-28 2013-11-10 Борис Иванович Бутаков Method of hydroelectric expansion of sleeves
RU2521167C1 (en) * 2012-12-21 2014-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "ВЯТСКИЙ ГОСУДАРСТВЕННЫЙ УНИВЕРСИТЕТ" (ФГБОУ ВПО "ВятГУ") Production of steeply curved thin-wall preset-shape pipes
CN104785605A (en) * 2015-03-31 2015-07-22 西北工业大学 Electro-hydraulic forming device for pipe fitting and forming method
RU2696117C1 (en) * 2018-12-01 2019-07-31 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") Device for deep electrohydrompulsive drawing of thin-sheet metals
CN110000269A (en) * 2019-05-21 2019-07-12 哈尔滨工业大学 A kind of tubing local feature electro-hydraulic forming device and its manufacturing process
RU198415U1 (en) * 2019-11-21 2020-07-06 федеральное государственное автономное образовательное учреждение высшего образования "Казанский (Приволжский) федеральный университет" (ФГАОУ ВО КФУ) Electro-hydraulic device for machining materials

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees