US3279228A - Forming device and method - Google Patents

Forming device and method Download PDF

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Publication number
US3279228A
US3279228A US350976A US35097664A US3279228A US 3279228 A US3279228 A US 3279228A US 350976 A US350976 A US 350976A US 35097664 A US35097664 A US 35097664A US 3279228 A US3279228 A US 3279228A
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US
United States
Prior art keywords
medium
workpiece
tube
coil
driver
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Expired - Lifetime
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US350976A
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English (en)
Inventor
David F Brower
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 Dynamics Corp
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General Dynamics Corp
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Filing date
Publication date
Application filed by General Dynamics Corp filed Critical General Dynamics Corp
Priority to US350976A priority Critical patent/US3279228A/en
Priority to CH313365A priority patent/CH431434A/de
Priority to GB9438/65A priority patent/GB1075816A/en
Priority to AT201365A priority patent/AT276031B/de
Priority to FR8617A priority patent/FR1426035A/fr
Priority to BE660988A priority patent/BE660988A/xx
Priority to DE1965G0043057 priority patent/DE1452661A1/de
Priority to NL6503113A priority patent/NL6503113A/xx
Application granted granted Critical
Publication of US3279228A publication Critical patent/US3279228A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure

Definitions

  • a conductive workpiece can be formed into a desired ⁇ shape by using the energy acquired from an intense, varying magnetic field.
  • an intense, varying magnetic field has been used to induce an electromotive force in the conductive workpiece.
  • Energy is transferred to the workpiece due to the interaction of the induced current and the magnetic field, resulting in the workpiece being shaped and deformed. While this forming method has proven to be of great utility in forming conductive workpieces, its applicability to less conductive workpieces has been limited.
  • An object of the present invention is to provide a method and apparatus for forming a work-piece in which an intense, varying magnetic field is used to furnish the energy necessary for forming.
  • Another object of the invention is to provide a method and device for magnetically forming a workpiece, which may be of a relatively nonconductive material.
  • Still another object is to provide a forming device, which is durable in use.
  • FIGURE 1 is a schematic, sectional view of one embodiment of a forming device, this device being adapted to shape a flat plate;
  • FIGURE 2 is a schematic sectional view of another embodiment of a forming device similar to that shown in FIGURE 1, but being provided wi-th means ⁇ for increasing the forming pressure applied;
  • FIGURE 3 is a schematic sectional view of another embodiment of a forming device constructed in accordance with the present invention, this device ⁇ being adapted to shape a tubular workpiece;
  • FIGURE 4 is a cross-sectional View taken generally along line 4-4 of FIGURE 3;
  • FIGURE 5 is a schematic sectional View of another embodiment of a forming device similar to that in FIG- URE 1;
  • FIGURLE 6 is a schematic sectional View of another embodiment of a forming device, which is adapted for expanding the end of a boiler tube in a tulbe sheet;
  • FIGURE 7 is a schema-tic sectional view of another embodiment of a forming device, which is adapted for application of radial compressive forces to a workpiece;
  • FIGURE 8 is a schematic cross sectional view of another embodiment of a forming device constructed in accordance with the present invention, this device being adapted to eX-pand a tubular workpiece.
  • a forming device in accordance with the present invention includes a deformable pressure transmitting medium for transferring a magnetic force impar-ted to a conductive body to a workpiece. Sufficient energy is transferred to the work-piece to form it as desired.
  • an insulated, pancake type of coil 10 such as that described in U.S. Patent No. 2,976,907, is employed to create an intense, varying magnetic field.
  • the coil 10 is wound in a fiat spiral and is suitably 3,279,228 Patented Oct. 18, 1966 insulated.
  • the coil 10 is connected through a suitable switch means, such as an ign-itron 12, to a capacitor bank l14, which may be selectively charged in the conventional manner.
  • a switch 15 is provided for selectively connecting the ignitor 16 of the ignit-ron 12 through a resistor 17 to the cathode 18 thereof, thereby firing the same.
  • a cylindrical body or driver plate 19 of lightweight and conductive material such as copper, aluminum, etc. is disposed on the coil 10.
  • a high amplitude current pulse is passed through the coil 10 and an intense, varying magnetic field is established between .the driver plate A19 and the coil 10.
  • the driver plate 19 and the medium 20 thereon are thereby forced against a workpiece 22, positioned between the medium 20 and a die 24 having a predetermined pattern 26 on its face 218.
  • the die 24 and the coil 10 are suitably supported in spaced relation by support 29.
  • the die 24 normally requires little, if any, backing or support because its own inertia is suiiicient to overcome the momentum of the combination of the workpiece 22, the medium 18 and the driver plate 19.
  • sufficient spacing is provided between the maxim-m 26 and the die 24, so that a substantial amount of inertia is built up by the pressure transmitting medium 20 and the workpiece 22 before the workpiece strikes the die 24.
  • the vuse of the deformable medium 2d allows the workpiece 22 to conform to the pattern 26 of the die 24 without any resultant deformation of the driver 19. Hence, ⁇ the same driver is reusable in subsequent forming operations.
  • FIGURE 2 Another embodiment of a forming device is illustrated in FIGURE 2. This device increases the pressure that can be applied to a workpiece without the necessity of an increase in the magnetic field strength.
  • the requisite magnetic field in this embodiment is provided by a suitably supported pancake type coil 32, which may be similar to that employed in FIGURE 1.
  • a similar circuit (not shown) to that employed in F-IG- URE 1 may be utilized to pass a pulse of current through the coil 32.
  • a lower face 34 of a body or driver, made of a conductive material such as copper, aluminum, etc., generally designated by the numeral 35 is disposed adjacent the coil 32.
  • the illustrated driver includes a lower cylindrical portion 36, an intermediate frusturn or conical portion 37 and ⁇ an upper cylinderical portion 38, the portions all being integrally connected.
  • the lower face 34 is larger in area than the upper face 39 of the driver 35.
  • the upper face 39 of the ⁇ driver 35 is positioned so as to contact a cylindrical deformable medium 40 which preferably is of an elastic material such as rubber.
  • a cylindrical deformable medium 40 which preferably is of an elastic material such as rubber.
  • the medium 40 is encompassed by a suitably supported ring or annular restrainer 41.
  • a workpiece 42 is suitably disposed between the medium 4@ and a suitably supported die 43, having a predetermined pattern 44 on its face 45.
  • the coil 32 When the coil 32 is pulsed, an intense, varying magnetic field is produced which intersects the lower face 34 of the driver 35.
  • the upper face 39 of the driver 35 being smal-ler in area than its lower face 34 results in the same force being applied to a smaller area, consequently resulting in the upper face 39 of the driver 35 applying a greater pressure to the medium 4t) without any increase required in the magnetic field strength.
  • the upper face 39 of the driver 35 causes the medium 40 to force the workpiece 42 against the die 43, thereby forming the workpiece 42.
  • the driver illustrated in FIG-URE 2 may be ⁇ composed of a relatively nonconductive material as long as its lower face, which is disposed adjacent to the coil is made of .a conductive material.
  • the forming device shown in FIGURE 3 is particularlv adaptable for use in compressively shaping a portion of' a tubular workpiece.
  • an intense, varying magnetic field is produced by coupling a cylindrical coil assmebly 46 to a capacitor bank (not shown).
  • the cylindrical coil assembly 46 may be similar to that described in a pending application, Serial No. 243,010, tiled December 7, 1962, now Patent No. 3,195,- 335.
  • the coil assembly 46 generally includes an insulated, helical coil or solenoid 47, Iformed of a conductive material such as copper, beryllium copper, etc.
  • the source of pulsed current and the control circuit therefor are connected to the solenoid 47.
  • the solenoid 47 may be cooled to limit the temperature rise caused by high current pulses flowing therein.
  • a generally cylindrical, split, annular field shaping element 48 of conductive material is removably disposed concentrically within the solenoid 47.
  • a iiexible body or driver Si is disposed within the field shaper 48.
  • the driver 50 comprises a cor-rugated tube 52 of a iiexible conductive material such as be ryllium copper, aluminum, etc.
  • the tube 52 is composed of several layers of material.
  • a deformable medium 54 which is preferably of elastic material, such as rubber, is placed within the corrugated tube 52 and arranged concentrically therein.
  • a cylindrical passage 56 is provided along the center line of the medium 54.
  • a tubular workpiece 58 which is to be formed, is placed within the passage 56.
  • a suitably supported end restrainer 60 composed of a relatively heavy, rigid material, such as steel is placed at each of the respective ends of iiexible tube 52, preferably in tight contact with the ends of the medium 54 therein, so as to preclude undesirable endwise flow of the medium 54.
  • the lield shaper 48 directs and shapes the magnetic field so that it intersects the exterior of the flexible tube 52, causing the tube to be abruptly cornpressed. This ⁇ forces the medium 54 against the tubular workpiece 58, thereby compressing the same.
  • a die or mandrel (not shown) may be disposed within the interior of the tubular workpiece 58, so that the workpiece may be shaped as desired.
  • the central hole of the shaper 48 is contoured so as to 'substantially conform to the corrugations of the corrugated tube 52. In this way, a substantially uniform force is aplied to the driver S0. If the depth of the corrugation 62 is short as compared with the length of the tube 52, the shaper need not be contoured.
  • the flexible driver 50u is used in conjunction with a cylindrical expansion type of coil assembly 63 to expand the tubular workpiece 58a.
  • the expansion coil ⁇ assembly 63 is placed within the corrugated tube 52a and the deformable medium 54a, is disposed around the entire exterior of the tube 52a.
  • the intense magnetic field generated intersects the interior of the flexible tube, forcing the tube against the medium, thereby expanding the tubular workpiece.
  • the device shown in FIGURE employs a fluid medium 64 for transmitting pressure to a workpiece 66.
  • a suitably supported pancake type coil 67 which may be similar to that employed in FIGURE 1.
  • a suitable circuit and switch means (not shown), which may be similar to that employed in FIGURE 1, may be coupled to the coil 67 in order to pass a pulse of current through the coil 67.
  • a container generally designated by the numeral 69 is suitably disposed above the coil 67.
  • the lower restraining wall of the container 69 is composed of a conductive diaphragm 70.
  • the side walls 71 of the container 69 are composed of a rigid material to prevent endwise flow of the liquid medium 64.
  • the workpiece 66 is disposed ⁇ directly above the medium 64.
  • a suitably supported die 72 having a predetermined pattern 73 on its face 74 is disposed above the workpiece 66.
  • suicient spacing is provided between the workpiece 66 and the die 72 so as to enable said workpiece 66 to acquire a substantial amount of momentum when moving toward contact with the die.
  • FIGURE 6 there is shown an embodiment of a forming device, which is of particular applicability for expanding the end of a tboiler tube 78, in a tube sheet 80.
  • the forming device may be employed for the expanding of tubes other than boiler tubes.
  • a suit ably supported flat, pancake type coil 82 which may be similar to that employed in FIGURE 1, is used to produce an intense, varying magnetic field.
  • a suitable circuit and switch means (not shown), which may be similar to that employed in FIGURE 1, is coupled to the coil 82 in order to pass a pulse of current through the coil 82.
  • a conductive body or driver 84 which may be similar to that employed in FIGURE 2 is disposed adjacent the coil 82.
  • the smaller end of the driver 84 is disposed partially within the interior of the boiler tube 78 and is flush against the sides thereof.
  • a deformable medium 86 which preferably is of elastic material such as rubber, is disposed within the
  • a restraining rod 88 is inserted in the opposite end of the boiled tube and against the medium 84, thereby enabling the medium to be constrained within the boiler tube 78.
  • FIGURE 7 A forming device is shown in FIGURE 7, which is adapted for applying radial, compressive forces to a generally spherical workpiece 90.
  • a fiat, suitably supported pancake type coil 92 which may be similar to that employed in FIGURE 1, is used to produce an intense, varying magnetic field.
  • a suitable circuit and switch means (not shown), which may be similar to that employed in FIGURE l, is coupled to the coil 92 in order to pass a pulse of current through said coil 92.
  • a conductive body or -driver 94 which may be similar to that shown in FIGURE 2, is disposed directly above the coil 92.
  • the lower surface of the driver faces the coil 92, and the upper surface faces a pressure transmitting medium 96, which preferably is a liquid medium such as oil or a medium such as parain, disposed directly above the driver,
  • the spherical workpiece is disposed at or near the center of the medium 96.
  • the medium is encompassed yby a ring or annular restrainer 100 composed of a relatively rigid material.
  • a suitably supported, stationary restraining rod 102 is disposed at the top of the medium 96 so as to ybring about substantially complete confinement of the medium 96.
  • the intense, varying magnetic field produced intersects the conductive driver 94, forcing it against the pressure transmitting medium 96.
  • the medium 96 being completely restrained is thereby subjected to a substantial pressure.
  • This pressure is transmitted by the medium 96, to the workpiece 90, thereby subjecting the workpiece 90 to a radial, compressive force'.
  • a method of forming a workpiece comprising, disposing a deformable, pressure transmitting medium between said workpiece and a conductive driver, and establishing an intense, varying magnetic field which intersects said driver, whereby said driver is forced against said medium, which in turn is forced against said workpiece.
  • a magnetic forming device' comprising a conductive body, an elastic medium interposed between said conductive body and a workpiece to be formed, and means for establishing an intense, varying magnetic field which intersects said body, whereby, when the field is established, the body is forced against the elastic medium with sufficient energy to drive said elastic medium against the workpiece, thereby forcing said workpiece against a die.
  • a magnetic forming device comprising a body having a pair of opposite faces, one of said faces being conductive and larger than the other face, a deformable medium interposed between the smaller face of the body and one side of a workpiece to be formed, a die disposed -adjacent to the other side of said workpiece, and means for producing an intense, varying magnetic field, which intersects the conductive face of the body, whereby when the field is established, the smaller face of said body is forced against the elastic medium which, in turn, is forced against the workpiece, thereby forcing said workpiece against the die.
  • a magnetic forming device comprising a corrugated tube of a flexible, conductive material, an elastic medium within said tube, said medium having a passage therein for receiving a workpiece to be formed, end restrainers at the ends of the tube for constraining said medium Within the tube and means for establishing an intense, varying magnetic field, which intersects the exterior of the tube, whereby, when the field is established said tube is compressed, forcing the medium against the workpiece, thereby shaping said workpiece -as desired.
  • a magnetic forming device comprising a corrugated tube of a flexible, conductive material, an elastic medium, having one face thereof adjacent one side of the tube and space on an opposite face thereof for receiving a workpiece to be formed, end restrainers for constraining endwise movement of said medium, and means for establishing an intense, varying magnetic field, which intersects the face of the tube opposite that adjacent to the medium, whereby, when the field is established, said tube is moved in the direction of the field, forcing the medium against the workpiece, thereby shaping said workpiece as desired.
  • a magnetic forming device comprising a corrugated tube of a flexible, conductive material, a cylindrical field shaping element concentrically disposed about said tube, an elastic medium within Isaid tube, said elastic medium having a passage therein for receiving a workpiece to be formed, end restrainers at the end of the tube for constraining said medium within the tube, and means for establishing an intense, varying magnetic field which is shaped and directed by said field shaping element to intersect the exterior of the tube, whereby, when the field is established, said tube is compressed, forcing the elastic medium against the workpiece, thereby shaping said workpiece as desired.
  • a magnetic forming device comprising a container having one open wall, the lower wall of said container including la conductive diaphragm, a fluid medium in said container, a die disposed over said open wall, a workpiece interposed between said fiuid medium and said die, and means for establishing an intense, varying magnetic field which intersects said conductive diaphrgam, whereby when the field is established, said conductive diaphragm is flexed, driving the fluid medium against the workpiece which, in turn, is forced against the die.
  • a magnetic forming device for expanding the end of a boiler tube in an encompassing tube sheet comprising a conductive body, one end of which extends partially within the end of a boiler tube to be formed., a defromable medium disposed within said boiler tube, having one end thereof adjacent said body, and being in line with the tube sheet, a restraining rod disposed in contact with the opposite end of said deformable medium, and means for establishing an intense, varying magnetic eld which intersects the conductive body, whereby, when the field is established, said conductive body is forced against the constrained, deformable medium, thereby compressing said rnedium such that said medium forces the walls of the boiler tube to expand into contact with the tube sheet.
  • a magnetic forming device comprising a body, having one face thereof composed of conductive material, a deformable medium disposed adjacent to an opposite face of said body, a stationary restraining body disposed adjacent to the opposite end of said deformable medium, a cavity within said deformable medium for receiving a workpiece to be formed, rigid side walls disposed adjacent to the opposite sides of said deformable medium, encompassing the unenclosed portions of said medium, and means for establishing an intense, varying .magnetic field, which intersects the conductive face, whereby, when the field is established, said body is forced against the constrained medium, compressing said medium, thereby subjecting the workpiece, disposed within said medium, to compressive forces.
  • a magnetic forming device for expanding the end of a tube in an encompassing tube sheet comprising a conductive body, one end of which extends partially within the end of a tube to be formed, a deformable medium disposed within said tube, having one end thereof adjacent said body, and being in line with the tube sheet, a restraining rod disposed in Contact with the opposite end of said deformable medium, and means for establishing an intense, varying magnetic field which intersects the conductive body, whereby, when the field is established, said conductive body is forced against the constrained, deformable medium, thereby compressing said medium such that said medium forces the walls of the tube to expand into contact with the tube sheet.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US350976A 1964-03-11 1964-03-11 Forming device and method Expired - Lifetime US3279228A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US350976A US3279228A (en) 1964-03-11 1964-03-11 Forming device and method
CH313365A CH431434A (de) 1964-03-11 1965-03-05 Verfahren zum Formen von Werkstücken und Vorrichtung zur Durchführung des Verfahrens
GB9438/65A GB1075816A (en) 1964-03-11 1965-03-05 Improvements in or relating to forming devices and methods
AT201365A AT276031B (de) 1964-03-11 1965-03-08 Vorrichtung zur magnetischen Werkstückverformung
FR8617A FR1426035A (fr) 1964-03-11 1965-03-10 Dispositif et procédé de façonnage
BE660988A BE660988A (ja) 1964-03-11 1965-03-11
DE1965G0043057 DE1452661A1 (de) 1964-03-11 1965-03-11 Verfahren zum Formen eines Werkstueckes und Vorrichtung zur Durchfuehrung dieses Verfahrens
NL6503113A NL6503113A (ja) 1964-03-11 1965-03-11

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US350976A US3279228A (en) 1964-03-11 1964-03-11 Forming device and method

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US3279228A true US3279228A (en) 1966-10-18

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US350976A Expired - Lifetime US3279228A (en) 1964-03-11 1964-03-11 Forming device and method

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US (1) US3279228A (ja)
AT (1) AT276031B (ja)
BE (1) BE660988A (ja)
CH (1) CH431434A (ja)
DE (1) DE1452661A1 (ja)
FR (1) FR1426035A (ja)
GB (1) GB1075816A (ja)
NL (1) NL6503113A (ja)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345844A (en) * 1965-02-02 1967-10-10 Gen Dynamics Corp Coil for magnetic forming
US3348396A (en) * 1964-03-26 1967-10-24 Euratom Magnetic forming apparatus, device and method for making deep grooves on parts made of conducting materials, particularly tubes made of metal or ceramic-metal materials
US3365923A (en) * 1964-09-19 1968-01-30 Siemens Ag Device for producing a uniform pressure for the deep-drawing of metal workpieces
US3367158A (en) * 1964-04-23 1968-02-06 Bbc Brown Boveri & Cie High-power workpiece-forming method
US3372566A (en) * 1964-07-08 1968-03-12 Siemens Ag Device for forming metallic workpieces by pulsed magnetic fields
US3387476A (en) * 1965-04-12 1968-06-11 Siemens Ag Method and device for forming workpieces electrodynamically
US3412590A (en) * 1964-09-19 1968-11-26 Siemens Ag Device for forming metal workpieces
US3438230A (en) * 1966-07-29 1969-04-15 Siemens Ag Apparatus for electrodynamically forming solid bodies
US3447350A (en) * 1964-06-10 1969-06-03 Siemens Ag Method and device for the magnetic forming of metallic workpieces
US3541824A (en) * 1969-08-20 1970-11-24 Marvin A Frenkel Magnetic forming methods and apparatus
US3824824A (en) * 1969-10-02 1974-07-23 Grumman Aerospace Corp Method and apparatus for deforming metal
US3945109A (en) * 1972-04-17 1976-03-23 Grumman Aerospace Corporation Method and apparatus for driving interference-fit fasteners
US3961739A (en) * 1972-04-17 1976-06-08 Grumman Aerospace Corporation Method of welding metals using stress waves
US4962656A (en) * 1989-06-30 1990-10-16 The United States Of America As Represented By The United States Department Of Energy Control and monitoring method and system for electromagnetic forming process
US20100282829A1 (en) * 2009-05-08 2010-11-11 Jackson Francis G Dispensing container
CN103341546A (zh) * 2013-07-15 2013-10-09 哈尔滨工业大学 一种轻合金壳体成形件磁脉冲成形装置及方法
RU2516183C2 (ru) * 2012-06-09 2014-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева" Способ обработки давлением длинномерных заготовок
CN103894472A (zh) * 2014-04-01 2014-07-02 湖南大学 一种基于电磁成形技术的复合波纹管及其成形装置
RU2556156C2 (ru) * 2013-12-04 2015-07-10 Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр им. М.В. Хруничева" Способ снятия тонкостенных оболочек после формовки на них резьбовой поверхности
US20150343512A1 (en) * 2012-12-21 2015-12-03 Adm28 S.À.R.L Device and method for forming by stamping at high speed
CN105170768A (zh) * 2015-10-13 2015-12-23 福州大学 一种电流突变引发电磁吸引力成形金属板料的装置与控制方法
CN106769544A (zh) * 2016-11-30 2017-05-31 湘潭大学 一种金属板材电磁温热驱动成形极限试验装置及成形极限图建立方法
RU172686U1 (ru) * 2015-10-13 2017-07-19 Федеральное государственное автономное образовательное учреждение высшего образования "Севастопольский государственный университет" Установка для магнитно-импульсной рихтовки пространственных проводящих оболочковых конструкций
CN112275886A (zh) * 2020-09-30 2021-01-29 北京理工大学深圳汽车研究院 一种基于电液成形的冲裁装置及方法
CN112845793A (zh) * 2021-02-25 2021-05-28 韶关学院 一种并列双支管磁流变液内高压成形装置及其使用方法
RU2764044C1 (ru) * 2021-07-02 2022-01-13 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") Устройство для магнитно-импульсной формовки особо тонколистовых материалов с низкой электропроводностью
CN116944328A (zh) * 2023-09-18 2023-10-27 中南大学 一种复杂曲面金属构件的磁流体柔性冲压成形装置及方法

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FR2570303B1 (fr) * 1984-09-19 1993-12-03 Leroy Maurice Dispositifs pour former des materiaux en utilisant des champs magnetiques intenses et pulses et un fluide
RU169826U1 (ru) * 2016-06-30 2017-04-03 Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" Устройство для подготовки наружной ступенчатой поверхности трубчатой детали к пайке в вакууме
RU173684U1 (ru) * 2016-11-22 2017-09-05 Федеральное Государственное Унитарное Предприятие "Научно-Производственное Объединение "Техномаш" Устройство для подготовки внутренней поверхности трубчатой детали к пайке в вакууме
RU2728057C1 (ru) * 2020-01-28 2020-07-28 Общество с ограниченной ответственностью "Гарант-Магнитогорск" Способ обработки листа
CN115532929B (zh) * 2022-11-25 2023-03-10 哈尔滨工业大学 一种包覆磁流变弹性体层的刚性模及板材零件成形方法

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US3115857A (en) * 1961-06-05 1963-12-31 Republic Aviat Corp Metal forming apparatus

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US2976907A (en) * 1958-08-28 1961-03-28 Gen Dynamics Corp Metal forming device and method
US3115857A (en) * 1961-06-05 1963-12-31 Republic Aviat Corp Metal forming apparatus

Cited By (33)

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US3348396A (en) * 1964-03-26 1967-10-24 Euratom Magnetic forming apparatus, device and method for making deep grooves on parts made of conducting materials, particularly tubes made of metal or ceramic-metal materials
US3367158A (en) * 1964-04-23 1968-02-06 Bbc Brown Boveri & Cie High-power workpiece-forming method
US3447350A (en) * 1964-06-10 1969-06-03 Siemens Ag Method and device for the magnetic forming of metallic workpieces
US3372566A (en) * 1964-07-08 1968-03-12 Siemens Ag Device for forming metallic workpieces by pulsed magnetic fields
US3412590A (en) * 1964-09-19 1968-11-26 Siemens Ag Device for forming metal workpieces
US3365923A (en) * 1964-09-19 1968-01-30 Siemens Ag Device for producing a uniform pressure for the deep-drawing of metal workpieces
US3345844A (en) * 1965-02-02 1967-10-10 Gen Dynamics Corp Coil for magnetic forming
US3387476A (en) * 1965-04-12 1968-06-11 Siemens Ag Method and device for forming workpieces electrodynamically
US3438230A (en) * 1966-07-29 1969-04-15 Siemens Ag Apparatus for electrodynamically forming solid bodies
US3541824A (en) * 1969-08-20 1970-11-24 Marvin A Frenkel Magnetic forming methods and apparatus
US3824824A (en) * 1969-10-02 1974-07-23 Grumman Aerospace Corp Method and apparatus for deforming metal
US3945109A (en) * 1972-04-17 1976-03-23 Grumman Aerospace Corporation Method and apparatus for driving interference-fit fasteners
US3961739A (en) * 1972-04-17 1976-06-08 Grumman Aerospace Corporation Method of welding metals using stress waves
US4962656A (en) * 1989-06-30 1990-10-16 The United States Of America As Represented By The United States Department Of Energy Control and monitoring method and system for electromagnetic forming process
US20100282829A1 (en) * 2009-05-08 2010-11-11 Jackson Francis G Dispensing container
US8052038B2 (en) * 2009-05-08 2011-11-08 Jackson Francis G Dispensing container
RU2516183C2 (ru) * 2012-06-09 2014-05-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева" Способ обработки давлением длинномерных заготовок
US20150343512A1 (en) * 2012-12-21 2015-12-03 Adm28 S.À.R.L Device and method for forming by stamping at high speed
US9630230B2 (en) * 2012-12-21 2017-04-25 Adm28 S.Àr.L Device and method for forming by stamping at high speed
CN103341546A (zh) * 2013-07-15 2013-10-09 哈尔滨工业大学 一种轻合金壳体成形件磁脉冲成形装置及方法
RU2556156C2 (ru) * 2013-12-04 2015-07-10 Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр им. М.В. Хруничева" Способ снятия тонкостенных оболочек после формовки на них резьбовой поверхности
CN103894472A (zh) * 2014-04-01 2014-07-02 湖南大学 一种基于电磁成形技术的复合波纹管及其成形装置
CN103894472B (zh) * 2014-04-01 2015-07-29 湖南大学 一种基于电磁成形技术的复合波纹管及其成形装置
RU172686U1 (ru) * 2015-10-13 2017-07-19 Федеральное государственное автономное образовательное учреждение высшего образования "Севастопольский государственный университет" Установка для магнитно-импульсной рихтовки пространственных проводящих оболочковых конструкций
CN105170768A (zh) * 2015-10-13 2015-12-23 福州大学 一种电流突变引发电磁吸引力成形金属板料的装置与控制方法
CN106769544B (zh) * 2016-11-30 2019-04-19 湘潭大学 一种金属板材电磁温热驱动成形极限试验装置及成形极限图建立方法
CN106769544A (zh) * 2016-11-30 2017-05-31 湘潭大学 一种金属板材电磁温热驱动成形极限试验装置及成形极限图建立方法
CN112275886A (zh) * 2020-09-30 2021-01-29 北京理工大学深圳汽车研究院 一种基于电液成形的冲裁装置及方法
CN112275886B (zh) * 2020-09-30 2022-08-30 北京理工大学深圳汽车研究院 一种基于电液成形的冲裁装置及方法
CN112845793A (zh) * 2021-02-25 2021-05-28 韶关学院 一种并列双支管磁流变液内高压成形装置及其使用方法
RU2764044C1 (ru) * 2021-07-02 2022-01-13 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский политехнический университет Петра Великого" (ФГАОУ ВО "СПбПУ") Устройство для магнитно-импульсной формовки особо тонколистовых материалов с низкой электропроводностью
CN116944328A (zh) * 2023-09-18 2023-10-27 中南大学 一种复杂曲面金属构件的磁流体柔性冲压成形装置及方法
CN116944328B (zh) * 2023-09-18 2023-12-05 中南大学 一种复杂曲面金属构件的磁流体柔性冲压成形装置及方法

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DE1452661B2 (ja) 1969-10-09
DE1452661A1 (de) 1969-06-12
AT276031B (de) 1969-11-10
NL6503113A (ja) 1965-09-13
BE660988A (ja) 1965-07-01
CH431434A (de) 1967-03-15
GB1075816A (en) 1967-07-12
FR1426035A (fr) 1966-01-24

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