GB1349226A - Unit for forming and/or welding a metal workpiece by a pulse magnetic field - Google Patents

Unit for forming and/or welding a metal workpiece by a pulse magnetic field

Info

Publication number
GB1349226A
GB1349226A GB1349226DA GB1349226A GB 1349226 A GB1349226 A GB 1349226A GB 1349226D A GB1349226D A GB 1349226DA GB 1349226 A GB1349226 A GB 1349226A
Authority
GB
United Kingdom
Prior art keywords
inductor
welding
metal workpiece
forming
magnetic 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
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.)
OTHERS
Original Assignee
OTHERS
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 OTHERS filed Critical OTHERS
Publication of GB1349226A publication Critical patent/GB1349226A/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
    • B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/06—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of high energy impulses, e.g. magnetic energy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/202—Electromagnets for high magnetic field strength
    • H01F7/204—Circuits for energising or de-energising

Abstract

1349226 Welding by pressure; electromagnetic forming I K KIKOIN A I NASTJUKHA O G BESPALOV A S KNYAZYATOV P A SMIRNOV A N UDOVENKO and M M FISHKIS 3 Nov 1972 50752/72 Headings B3R and B3Q A unit for forming and/or welding a metal workpiece by a pulse magnetic field comprises a capacitive energy-storing device 2 intended to be connected to a source of electric energy 1, an inductor 3 connected to the device 2 and adapted to accommodate a metal workpiece, means 4 for discharging the device 2 through the inductor the circuit being such that the discharge voltage decays with periodic oscillations, and a switching device 5 connected across the inductor and arranged to short circuit the inductor when the discharge voltage thereon is reversed. Thus instead of a periodically oscillating current (shown dotted in Fig. 3) there exists a quasidirect current which decays exponentially and the harmful force and temperature effects on the inductor are reduced. As shown, the switching means 4, 5 are both semi-conductor rectifiers but may alternatively be gas discharge devices (Fig. 2, not shown).
GB1349226D 1972-11-03 1972-11-03 Unit for forming and/or welding a metal workpiece by a pulse magnetic field Expired GB1349226A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5075272 1972-11-03

Publications (1)

Publication Number Publication Date
GB1349226A true GB1349226A (en) 1974-04-03

Family

ID=10457220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1349226D Expired GB1349226A (en) 1972-11-03 1972-11-03 Unit for forming and/or welding a metal workpiece by a pulse magnetic field

Country Status (1)

Country Link
GB (1) GB1349226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696829A1 (en) * 2019-02-15 2020-08-19 Centre National De La Recherche Scientifique Method for generating a pulsed magnetic field and associated device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3696829A1 (en) * 2019-02-15 2020-08-19 Centre National De La Recherche Scientifique Method for generating a pulsed magnetic field and associated device
WO2020165348A1 (en) * 2019-02-15 2020-08-20 Centre National De La Recherche Scientifique Method for generating a pulsed magnetic field and associated device
US11749436B2 (en) 2019-02-15 2023-09-05 Centre National De La Recherche Scientifique Method for generating a pulsed magnetic field and associated device

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Legal Events

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