Magnetically Shaping Patents (Class 29/419.2)
  • Patent number: 10138926
    Abstract: A low-cost, lightweight telescoping torque tube assembly is reliable, safe, and easy to operate. The assembly has no loose fasteners, and no tools are required to operate the telescoping assembly. The telescoping torque tube assembly has only two parts, namely an end fitting and a torque tube. A resiliently deflectable locking tab is provided on one of the parts, and the locking tab is received by a corresponding locking slot formed in the other part. The locking tab has an abutment edge, and the locking slot has a limit edge facing the abutment edge for engaging the abutment edge when the locking tab is undeflected to prevent axially directed adjustment of the end fitting relative to the torque tube from an extended position toward a retracted position. A user deflects the locking tab to enable adjustment of the end fitting from the extended position to the retracted position.
    Type: Grant
    Filed: August 30, 2015
    Date of Patent: November 27, 2018
    Assignee: Moog Inc.
    Inventor: Lowell Van Lund Larson
  • Patent number: 9899133
    Abstract: Embodiments of an apparatus that includes a substrate and an inductor residing in the substrate are disclosed. In one embodiment, the inductor is formed as a conductive path that extends from a first terminal to a second terminal. The conductive path has a shape corresponding to a two-dimensional (2D) lobe laid over a three-dimensional (3D) volume. Since the shape of the conductive path corresponds to the 2D lobe laid over a 3D volume, the magnetic field generated by the inductor has magnetic field lines that are predominately destructive outside the inductor and magnetic field lines that are predominately constructive inside the inductor. In this manner, the inductor can maintain a high quality (Q) factor while being placed close to other components.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: February 20, 2018
    Assignee: Qorvo US, Inc.
    Inventors: George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 9876409
    Abstract: An inner-rotor motor includes a shaft, a rotor magnet, a stator arranged radially outside of and opposite to the rotor magnet, and upper and lower brackets arranged to hold upper and lower bearings. The upper bracket includes an upper cylindrical cover press fitted to an outer circumference of a stator core from above, an upper bearing holding portion configured to hold the upper bearing, and a top plate portion arranged to join the upper cylindrical cover to the upper bearing holding portion. The lower bracket includes a lower cylindrical cover press fitted to the outer circumference of the stator core from below, a lower bearing holding portion arranged to hold the lower bearing, and a bottom plate portion arranged to join the lower cylindrical cover to the lower bearing holding portion. Each of the upper and lower brackets is fixed to the stator core through press fitting.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: January 23, 2018
    Assignee: NIDEC CORPORATION
    Inventor: Shinji Kajiyama
  • Patent number: 9826577
    Abstract: The invention is directed to a dent removing device for removing of dents in ferromagnetic sheet metals by way of inductive heating, said dent removing device comprising a working head with a housing with at least one working face foreseen to be brought in close contact with a dent in a sheet metal and at least one magnetic field generator for generating a magnetic field. According to the invention, the at least one working face comprises a recess for visual control of the dent removing, recess extending at least partially across the at least one working face.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: November 21, 2017
    Inventors: Ralph Meichtry, Beat Basler, Ivan Kouba
  • Patent number: 9808805
    Abstract: A liquid reservoir for use in a microgravity environment includes a bladder for holding a liquid. The bladder includes flexible walls and an opening for extraction of the liquid from the bladder. An internal structure is shaped so as to form a channel to conduct the liquid from an end of the bladder that is distal to the opening. The internal structure is configured to prevent the walls of the bladder from blocking the channel when suction is applied to the opening.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: November 7, 2017
    Assignee: SpacePharma SA
    Inventors: Ira Naot, Molly K. Mulligan, Alexander Pekin
  • Patent number: 9787042
    Abstract: A processing station automatically manufactures a cable harness containing a plurality of individual lines. The processing station has a support unit for holding a line bundle containing the individual lines with a predefined, even branched, routing, and a processing unit for the automated fixing of the individual lines of the line bundle to one another. The processing unit has a fixing unit, which is configured for the automated application of a fixing agent to the line bundle. A manipulator is provided for moving the processing unit relative to the line bundle.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: October 10, 2017
    Assignee: LEONI Bordnetz-Systeme GmbH
    Inventors: Markus Stallwitz, Christian Dreyer, Daniel Reiter
  • Patent number: 9759278
    Abstract: A torque tube for use in a disk brake system in accordance with various embodiments includes a backleg having a reaction plate and a foot extending axially away from the reaction plate. The torque tube also includes a barrel having a tubular structure having an axis and an inner surface configured to receive the foot.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 12, 2017
    Assignee: GOODRICH CORPORATION
    Inventor: Todd Rook
  • Patent number: 9695877
    Abstract: One aspect of the present disclosure relates to an apparatus comprising a first end fitting. The first end fitting comprises a tube engagement portion. The tube engagement portion comprises an outer coupling surface. The outer coupling surface comprises a first virtual cross-section. The first virtual cross-section comprises a first transverse inflection point. Each point along the first virtual cross-section has a first virtual tangent line coplanar with the first virtual cross-section.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: July 4, 2017
    Assignee: The Boeing Company
    Inventors: Pradip K. Saha, Mark R. Meyer, Mark E. Bice
  • Patent number: 9601976
    Abstract: A method and assembly for forming a rotor include forming a rotor core having a plurality of voids and placing the formed rotor core into a die cavity. The method includes moving a plurality of support shoes to define an outer diameter of the die cavity, and injecting at least one of the plurality of voids with a magnetic slurry. At least one permanent magnet is formed from the magnetic slurry by applying pressure to the rotor core and the magnetic slurry within the die cavity and by applying a magnetic field to align the magnetic slurry. After forming the at least one permanent magnet within the rotor core, the plurality of support shoes are retracted and the rotor core removed with the at least one permanent magnet formed therein.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: March 21, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Edward L. Kaiser, Amanda Luedtke, Peter J. Savagian, Sinisa Jurkovic
  • Patent number: 9125243
    Abstract: A system and method for electromagnetic surface treatment of a work piece has an electromagnetic pulse generator and an electromagnetic pulse tool. The work piece has a working surface. A current pulse generated by the electromagnetic pulse generator travels through the tool producing an electromagnetic pulse. The electromagnetic pulse interacts with the working surface causing an indentation to form. A residual compressive stress layer is also formed. The indentation has a smooth and continuous topography that is described by an indentation perimeter, an indentation transition region, an indentation sidewall, an impact transition region, and an impact region. The method may also simultaneously, or subsequently, form a second indentation which overlaps with the indentation. An inter-indentation overlap region is formed when the indentations overlap. The inter-indentation overlap region is smooth and continuous. Multiple treated surfaces may easily be formed on the working surface of the work piece.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: September 1, 2015
    Assignee: GATEKEY ENGINEERING, INC.
    Inventors: James R. Dydo, Sergei P. Yushanov
  • Patent number: 9038256
    Abstract: Method for non-destructively forming a component made of cast material beyond the quasistatic elongation at break, wherein the component is formed by means of electromagnetic high-speed forming (EMF) method.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 26, 2015
    Assignee: Georg Fischer Automotive AG
    Inventor: Thomas Loehken
  • Patent number: 8899084
    Abstract: A method of welding two workpieces together is described. A conductor in electrical communication with a pulse circuit is provided. A portion of the second workpiece is located adjacent the conductor. The two workpieces are also located together. A portion, or all, of one workpiece is welded to the other by applying a pulse current to one of the workpieces. A method of forming a workpiece is disclosed using a pulse current to move the workpiece into a desired shape.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: December 2, 2014
    Assignee: Dana Automotive Systems Group, LLC
    Inventors: Boris A. Yablochnikov, Eve S. Steigerwalt, Tom O'Neil, Jack A. Kummerow
  • Patent number: 8795444
    Abstract: A method of thermomagnetically processing a material includes disposing a workpiece within a bore of a magnet; exposing the workpiece to a magnetic field of at least about 1 Tesla generated by the magnet; and, while exposing the workpiece to the magnetic field, applying heat energy to the workpiece at a plurality of frequencies to achieve spatially-controlled heating of the workpiece. An apparatus for thermomagnetically processing a material comprises: a high field strength magnet having a bore extending therethrough for insertion of a workpiece therein; and an energy source disposed adjacent to an entrance to the bore. The energy source is an emitter of variable frequency heat energy, and the bore comprises a waveguide for propagation of the variable frequency heat energy from the energy source to the workpiece.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 5, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Roger A. Kisner, Orlando Rios, John B. Wilgen, Gerard M. Ludtka, Gail M. Ludtka
  • Patent number: 8667823
    Abstract: A tool for modifying a workpiece by either trimming or joining the workpiece. The tool is an electro-hydraulic tool that uses a pulse transmitted through a liquid to trim a workpiece or to join two thicknesses of metal together. A method of trimming the workpiece includes the steps of providing a high voltage discharge in a liquid that drives a workpiece into engagement with a cutting edge of a tool steel insert. A method of joining two or more thicknesses of metal together includes the step of creating a high voltage discharge through an electrode that accelerates one panel or thickness of metal into a second panel that is held stationary by a backing plate while the first thickness of metal is accelerated into the second thickness of metal.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: March 11, 2014
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 8613131
    Abstract: Methods are provided for forming/inserting a magnet in a rotor. One method includes coating a plurality of magnetizable particles with a non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles. Another method includes inserting a plurality of magnetizable particles into a rotor, submersing the rotor in motor varnish or another viscous, non-metallic material to coat the particles, and magnetizing the particles. Yet another method includes inserting a plurality of magnetizable particles in a rotor, inserting a non-metallic material into the rotor, mixing the particles and non-metallic material to form a mixture, curing the mixture to coat each particle with non-metallic material, and magnetizing the particles.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: December 24, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Terence G. Ward, Khwaja M. Rahman
  • Publication number: 20130236244
    Abstract: A method of forming a sliding spline-type joint using magnetic pulse forming technology includes providing a female driveshaft member and a splined insert having inwardly formed splines. A male driveshaft member is provided having outwardly formed splines engageable with the insert. A mandrel is provided having outer ribs similar to the outer spline profile of the male driveshaft member. An inductor is provided which is energized to create a pulse magnetic field. The insert is placed over the mandrel. The female driveshaft member is disposed over the insert, and both are placed inside the inductor. The inductor is energized to deform a portion of the female driveshaft member over the insert to form an array of crimps for permanently connecting the female driveshaft member with the insert. The male driveshaft member is engaged into the insert to provide a sliding spline-type of slip joint.
    Type: Application
    Filed: March 8, 2012
    Publication date: September 12, 2013
    Applicant: Dana Automotive Systems Group, LLC
    Inventors: Boris A. Yablochnikov, Johnny N. Smith
  • Patent number: 8371021
    Abstract: A process of manufacturing segments, an anisotropic direction of which is continuously changed in a plane vertically by a uniform magnetic field maintained in a constant direction and a process of arranging a plurality of segments on a circumference, extruding the segments in a ring shape by rheology based on the viscous deformation of the segments, from one thrust-direction end surface of the segments, and subsequently compressing the segments from both thrust-direction end surfaces of the segments are necessarily included. A ring magnet, anisotropy of which is controlled in a continuous direction, is provided, and a source for generating a static magnetic field has energy density (BH) max?160 to 180 kJ/m3.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: February 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Fumitoshi Yamashita, Kiyomi Kawamura, Yukihiro Okada, Hiroshi Murakami
  • Patent number: 8316677
    Abstract: Methods and apparatus for high velocity electromagnetic metal forming are described for sealing containers. The methods include applying an electromagnetic field to the container to seal a metal containing cap to the container. One or more containers may be simultaneously sealed. The apparatus includes an actuator that emits the electromagnetic field to seal the caps to the containers. The containers may contain a medicine.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: November 27, 2012
    Inventors: Alan S. Anthenat, Bruce A. Anthenat
  • Patent number: 8302451
    Abstract: A can manufacturing device in which a tool supporting base has: a plurality of working tool units that support a plurality of working tools; a supporting member that supports a plurality of working tool units; and a linear driving mechanism that reciprocates the working tool units with respect to the supporting member in the axial direction of a workpiece. The linear driving mechanism has: a guide section that is fixed on the supporting member with a base plate therebetween; a slide rail that is fixed on the working tool unit and slides along the guide section; an electromagnetic coil provided on the base plate; a magnet plate that is provided on the working tool unit and generates, between the electromagnetic coil and itself, a thrust force for the guide section; and a supply pipe that is provided at the electromagnetic coil and supplies coolant to the inside of the electromagnetic coil.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventors: Syouji Matsuo, Kenji Fujimoto, Masahiro Hosoi
  • Patent number: 8272116
    Abstract: A method for fixing a boot includes mounting a tubular anchoring areas, defined in opposite ends of a resinous boot, on an outer periphery of a counterpart member, and applying a clamping force to boot bands mounted around respective outer peripheries of the tubular anchoring areas to thereby fix the tubular anchoring areas to the outer periphery of the counterpart member. Coils are disposed around respective outer peripheries of the boot bands to generate an induction current in the boot bands. In this way, a reactive force of the magnetic field is generated between the coils and the boot bands to plastically deform the boot bands and reduce their diameters, whereby the tubular anchoring areas are fixed to the outer periphery of the counterpart member.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: September 25, 2012
    Assignee: NTN Corporation
    Inventor: Naoki Nakagawa
  • Patent number: 8266938
    Abstract: Electromagnetic forming methods suitable for creating surface features on a shape memory alloy are described. Features may be created over a range of scales, including those suitable for the generation of holographic images. Features, images, or patterns may be made capable of reversibly appearing and disappearing as a result of changes in temperature and may include temperature sensitive displays for automotive and other applications.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 18, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: John R. Bradley, Paul E. Krajewski, Yang T. Cheng
  • Patent number: 8127582
    Abstract: Methods and devices provide for high velocity forming of medical device casings. The high velocity forming may be produced by creating a pressure wave within a liquid contained by an enclosure. A die and a workpiece adjacent to the die are in the path of the pressure wave within the enclosure and the pressure wave forces the workpiece to conform to the contours of the die. Objects may be adhered to the die to provide for customized contours. Trimming features may be included within the enclosure to trim excess material from a formed workpiece as an integral part of the forming process. Various other features may also be provided within the enclosure including a diffuser to disperse the pressure wave. The workpiece may be of various forms including flat sheet stock.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: March 6, 2012
    Assignee: Medtronic, Inc.
    Inventors: Linda M. Johnson-Morke, Glenn S. Daehn
  • Patent number: 8099989
    Abstract: Articles are often formed from a tubular workpiece in a process which does not usefully shape the ends of the tube. In an embodiment of the invention, tube ends may be mechanically reduced in cross section and then expanded against a secondary forming surface(s) using an electromagnetic force to obtain desired shapes for the tube ends and minimize scrapping of workpiece material.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: January 24, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: John R. Bradley, Michael H. Lovell, Kevin R. Marks, Terry A. Kent, Donald W Cotton
  • Patent number: 8046893
    Abstract: A method for assembling a motor vehicle axle including suspension arms and a cross-member mounted between the arms. The method applys an adhesive element on at least one portion of the cross-member, mounts the portion inside a bore of one of the suspension arms to as to leave a clearance between the suspension arm and the adhesive element, and radially deforms one of the assembling elements of the cross-member and the suspension arm to obtain a contact between the adhesive element and the bore of the suspension arm.
    Type: Grant
    Filed: July 7, 2006
    Date of Patent: November 1, 2011
    Assignee: Renault s.a.s
    Inventors: Bernard Criqui, Samuel Fays, Jean Veneau
  • Patent number: 7954221
    Abstract: An electromagnetically formed fluid circuit joint (150) includes a tubular conduit (58) that has an outer surface (154) with a groove (72). A hollow fitting (56) is mechanically separate from and received over the tubular conduit (58). The hollow fitting (56) includes an electromagnetic field formed wall deformation (165) that extends into the groove (72).
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: June 7, 2011
    Assignee: The Boeing Company
    Inventors: Pradip K Saha, Don E Norris, Mark E Bice, Vaughn L Brady
  • Patent number: 7941907
    Abstract: A method is provided for manufacturing a shaped tubular part from a first tube and second tube. The end of the first tube is inserted into the end of the second tube to provide a region of overlapping tube walls. An induction coil is placed around the outer surface of the first and second tubes at the region of overlapped tube walls. The induction coil is energized to make a plurality of longitudinally spaced apart magnetic pulse welds attaching the tubes together to thereby form a multi-tube one-piece composite tubular assembly. The tubular assembly is then subjected to a forming process such as hydroforming, tube bending or stretch bending to form the final shape of the tubular part.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: May 17, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Wihua Yang, Charles J. Bruggemann
  • Patent number: 7918118
    Abstract: A method of using an electromagnetic forming machine to hem a panel assembly includes providing an inner panel and an outer panel. The outer panel has a plurality of flanges and a plurality of relief areas. An electric forming machine is provided having a coil for discharging electric energy to generate a magnetic field. The inner panel is positioned such that portions of the outer edge of the inner panel are aligned with the flanges of the outer panel to form a loose assembly of panels. The loose assembly of panels is positioned proximate the electromagnetic forming machine such that the coil surrounds the flanges and is disposed substantially coplanar with a plane formed by the relief areas. The electromagnetic forming machine is activated to generate a magnetic field causing the flanges to bend over.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: April 5, 2011
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 7905129
    Abstract: A tubular preform is contracted in an electro-hydraulic forming operation. The tubular preform is wrapped with one or more coils of wire and placed in a chamber of an electro-hydraulic forming tool. The electro-hydraulic forming tool is discharged to form a compressed area on a portion of the tube. The tube is then placed in a hydroforming tool that expands the tubular preform to form a part.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: March 15, 2011
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 7861412
    Abstract: A method prevents a cylindrical body from buckling in externally curling edges of both side portions by pressing curling dies in an axial direction after molding the cylindrical body having a drop portion whose outer diameter is small and two side portions whose outer diameter is large by enlarging a cylindrical material made of aluminum alloy by electromagnetic molding. In curling the edges of the side portions, a buckling preventing die restrains an outer periphery of the drop portion of the cylindrical body. Because the buckling preventing die receives the axial compression force of the curling dies, it can prevent the cylindrical body from buckling and deforming. The buckling preventing die is what a split die disposed on the side of an outer periphery of the cylindrical material in the electromagnetic molding is used as.
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: January 4, 2011
    Assignee: Daido Kogyo Co., Ltd.
    Inventors: Yoshihaya Imamura, Junichi Sato, Daigo Masumoto, Katsuhiro Motode
  • Patent number: 7845065
    Abstract: A method of making a motor stator core having a back iron and a plurality of teeth extending radially inward from the back iron includes providing the plurality of teeth and the back iron from oriented steel so that a magnetic flux transmission path is formed with superior properties in essentially one direction. At least one of the plurality of teeth and the back iron is annealed in selected portions so as to improve magnetic flux transmission in a second direction, different from the one direction.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: December 7, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventor: Alan G. Holmes
  • Patent number: 7818881
    Abstract: A vehicle exhaust system is provided that includes a first exhaust member having an end that includes an enlarged section. A second exhaust member is sized to receive a portion of the first exhaust member. The enlarged section of the first exhaust member has an outer diameter that is larger than an inner diameter of at least one section of the second exhaust member for creating an interference condition between the first and second exhaust member to prevent axial movement of the first exhaust member in at least one axial direction. The first exhaust member is secured to the second exhaust member by magnetic pulse welding.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: October 26, 2010
    Assignee: Automotive Components Holdings, LLC
    Inventors: Haimian Cai, Baoluo Chen, Hui Wang, Robert Schoenborn
  • Patent number: 7802457
    Abstract: An electrohydraulic forming (EHF) tool and a method of forming a sheet metal blank in an EHF operation. The tool may include a pair of electrodes and may be filled with a liquid. A high voltage discharge may be produced between the electrodes in a manner that induces a shockwave within the fluid. The shockwave may produce sufficient force within the liquid to form the blank against a die.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: September 28, 2010
    Assignee: Ford Global Technologies, LLC
    Inventors: Sergey Fedorovich Golovashchenko, Alan John Gillard, Douglas Piccard, Andrey M. Ilinich
  • Patent number: 7752880
    Abstract: The present invention provides a linear motor mounted press machine that generate an optimum thrust for a press tonnage to perform different machining operations including one requiring a greater press tonnage and one requiring a high speed and a smaller press tonnage in an energy efficient manner. A linear motor mounted press machine includes a first linear motor 11, a second linear motor 12 that produces a thrust lower than or equivalent to that of the first linear motor 11, and a coupling switching mechanism 13 that releasably couples output shafts 30, 34 of the first and second linear motor 11, 12 together. A press tool 6 is driven forward and backward by the output shaft 34 of the second linear motor 12. Each of first and second linear motors 11, 12 is a unit linear motor assembly having a plurality of unit linear motors 15 arranged around a press working axis center P. The number of the unit linear motors 15 of the second linear motor 12 is the same as or smaller than that of the first linear motor 11.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: July 13, 2010
    Assignee: Murata Kikai Kabushiki Kaisha
    Inventor: Hiroichi Sakamoto
  • Publication number: 20100139070
    Abstract: A device for producing a patterned plate from a tubular work piece is disclosed wherein walls of the tubular work piece comprise at least one forming surface. The device comprises a die and an electromagnetic actuator, wherein the die comprises a patterned surface with a pattern formed thereon and a fracturing part. The tubular work piece is disposed between the die and the electromagnetic actuator such that the walls of the tubular work piece correspond to walls of the die, and the forming surface corresponds to the patterned surface. When the electromagnetic actuator is supplied with a current pulse, an eddy current is induced in the tubular work piece, generating a repulsive force between the electromagnetic actuator and the tubular work piece. Therefore, the tubular work piece impacts the die, and the forming surface is deformed against the patterned surface and the fracturing part, thus replicating the pattern of the patterned surface onto the forming surface.
    Type: Application
    Filed: December 30, 2008
    Publication date: June 10, 2010
    Inventors: Tung-Chen Cheng, Yu-Yi Chu
  • Patent number: 7730603
    Abstract: Methods are provided for forming/inserting a magnet in a rotor. One method includes coating a plurality of magnetizable particles with a non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles. Another method includes inserting a plurality of magnetizable particles into a rotor, submersing the rotor in motor varnish to coat the particles with motor varnish, and magnetizing the particles. Yet another method includes inserting a plurality of magnetizable particles in a rotor, inserting a non-metallic material into the rotor, mixing the particles and non-metallic material to form a mixture, curing the mixture to coat each particle with non-metallic material, and magnetizing the particles. Still another method includes mixing a plurality of magnetizable particles with a non-metallic material, curing the non-metallic material to coat each particle with non-metallic material, inserting the coated particles in a rotor, and magnetizing the coated particles.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: June 8, 2010
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Terence G. Ward, Khwaja M. Rahman
  • Publication number: 20090255103
    Abstract: A method for manufacturing a ferrite magnet device including a ferrite body and first and second center electrodes arranged so as to intersect and be electrically insulated from each other and a permanent magnet arranged to apply a direct current magnetic field to the ferrite body and a method for manufacturing an isolator or a composite electronic component, which include the ferrite magnet device. A magnetic force of the permanent magnet is adjusted using a measurement jig and a magnetic force adjusting apparatus while the permanent magnet is fixed to a principal surface of the ferrite body.
    Type: Application
    Filed: March 11, 2009
    Publication date: October 15, 2009
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Takashi HASEGAWA
  • Patent number: 7536765
    Abstract: Process for fabricating an axle that includes a cross-member and arms which are assembled to extremities of the cross-member, wherein the process includes forming a cross-member, forming at least one arm, arranging the cross-member and the at least one arm in a fastening position, and fastening together in a rigid manner the cross-member and the at least one arm using a magneto-forming process. Wherein the fastening occurs while the cross-member and the at least one arm are in the fastening position and at least one of the cross-member and the at least one arm include at least one metallic material. This abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: May 26, 2009
    Assignee: Vallourec Composants Automobiles Vitry
    Inventors: Raymond Deslande, Lydie Even, Regis Panozzo
  • Patent number: 7516634
    Abstract: An electrohydraulic forming (EHF) tool having a pair of electrodes that can be used to generate a shockwave to facilitate forming a sheet metal blank against a forming die. The electrodes may be adjusted during the course of operation. This may be useful should continued use cause their efficiency to drop below a desired threshold.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: April 14, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Sergey Fedorovich Golovashchenko, Alan John Gillard, Dennis Allen Cedar, Andrey M. Ilinich
  • Publication number: 20090090162
    Abstract: A multi-layer driver plate is disclosed for use in electromagnetic sheet metal forming operations. In one embodiment, the driver plate comprises a first layer characterized by low electrical resistivity and thickness for inducement and application of a suitable electromagnetic forming force, a second layer comprising an elastomeric material for compressing a sheet metal workpiece against a die surface and then regaining its original pre-forming structure, and a third layer interposed between the first layer and the second layer to protect the EMF force providing layer and to provide overall strength and durability to the EMF driver plate.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., THE OHIO STATE UNIVERSITY RESEARCH FOUNDATION
    Inventors: John R. Bradley, Glenn S. Daehn
  • Patent number: 7513025
    Abstract: A magnetic forming system (10) for creating a fluid circuit joint between a tube and a fitting includes an induction coil (12). The induction coil (12) may form a first stage electromagnetic current. A field concentrator (132) may focus the first stage electromagnetic current to form a second stage electromagnetic current. An insert (136) may focus the second stage electromagnetic current to form an electromagnetic field. The electromagnetic field forms the fluid circuit joint. The induction coil (12) may be insertable within the tube, generate an electromagnetic field, and impose the electromagnetic field on and to expand a portion of the tube within the fitting to form the fluid circuit joint. The system (10) may include a receptacle (54) that is external to the tube and the fitting. An insert (56) may be mechanically coupled within the receptacle (54) and limit the outward expansion of the tube and the fitting.
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: April 7, 2009
    Assignee: The Boeing Company
    Inventor: Allen Fischer
  • Patent number: 7487655
    Abstract: A metal mold is disposed adjacent to the outer circumference of a base ring, and has a molding face in the inner circumference and a plurality of grooves for forming beads on the molding face along the circumferential direction. A coil for electromagnetic forming is disposed adjacent to the inner circumference of the base ring. When a momentary large current is applied to the coil in this arrangement, the diameter of the base ring is expanded by pressing the base ring toward the molding face of the metal mold such that the base ring is molded into a shape corresponding to the molding face by electromagnetic forming. Improvements such as a metal mold capable of degassing, a separable metal mold, roll-correcting after electromagnetic forming, application of momentary large current over several times, a metal mold with a cutting blade, use of a base ring with a large number of holes, and a metal mold with positioning means are then added.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: February 10, 2009
    Assignee: Kobe Steel, Ltd
    Inventors: Yoshihaya Imamura, Noritaka Eguchi, Takeo Sakurai, Hiroshi Tanimoto
  • Patent number: 7467532
    Abstract: An apparatus for electromagnetically forming a workpiece. The apparatus includes a solenoid coil for generating an electromagnetic force and a tool for concentrating electromagnetic force against the workpiece. The tool includes an electrically conductive body having an aperture and an insulator disposed in the aperture.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: December 23, 2008
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Golovashchenko
  • Patent number: 7441335
    Abstract: A metal mold for electromagnetic forming, with the inner peripheral face thereof, serving as a forming face, is disposed on the outer peripheral side of a columnar workpiece, and a coil for electromagnetic forming is disposed on the inner peripheral side of the columnar workpiece. In a state of a configuration as described, electric energy is thrown into the coil for the electromagnetic forming, and the columnar workpiece is caused to undergo flaring to be thereby pressed against the forming face of the metal mold for the electromagnetic forming, so as to be turned into a shape corresponding to the forming face by means of the electromagnetic forming, thus obtaining a wheel rim. A disc is welded to the wheel rim obtained, and curling is applied to outer edges of the wheel rim. With the adoption of a method of manufacturing an automotive wheel, a manufacturing process as a whole is enhanced in efficiency.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: October 28, 2008
    Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Yoshihaya Imamura, Hiroyuki Yamashita
  • Publication number: 20080120844
    Abstract: A method is provided for manufacturing a shaped tubular part from a first tube and second tube. The end of the first tube is inserted into the end of the second tube to provide a region of overlapping tube walls. An induction coil is placed around the outer surface of the first and second tubes at the region of overlapped tube walls. The induction coil is energized to make a plurality of longitudinally spaced apart magnetic pulse welds attaching the tubes together to thereby form a multi-tube one-piece composite tubular assembly. The tubular assembly is then subjected to a forming process such as hydroforming, tube bending or stretch bending to form the final shape of the tubular part.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 29, 2008
    Applicant: GM Global Technology Operations, Inc.
    Inventors: Wuhua Yang, Charles J. Bruggemann
  • Patent number: 7363945
    Abstract: A method of forming a torque-transmitting coupling (193) includes forming at least one fitting (192) having a tube conforming area (200). The forming area (200) includes a material overflow groove (194) and multiple flat surfaces (202). The forming area (200) has an associated tube arc length that is approximately equal in length to a formed area length of the flat surfaces (202) with the elongated overflow groove (194). An elongated tube (190) is procured. The elongated tube (190) is formed onto the tube conforming area (200) to form the torque-transmitting coupling (193).
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: April 29, 2008
    Assignee: The Boeing Co.
    Inventors: Pradip K. Saha, Matthew J. Berden
  • Patent number: 7343659
    Abstract: A method of making a medical device includes compressing a prosthesis, e.g., a therapeutic agent-carrying stent or stent-graft, to a catheter without contacting an outer surface of the prosthesis, e.g., by electromagnetically compressing the prosthesis.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: March 18, 2008
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Jan Weber, Raed Rizq, Fernando DiCaprio
  • Patent number: 7290318
    Abstract: Apparatus and methods are disclosed for applying electromagnetic force (EMF) to flanging and hemming metal panels to form a hemmed panel assembly. First and second apparatus and method steps use a translating EMF coil to flange a sheet and to finish a hem by progressive non-planar bending. An alternate embodiment uses EMF hemming for difficult-to-hem portions of a flange and optionally precedes this with conventional hemming of straight hem portions.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: November 6, 2007
    Assignee: General Motors Corporation
    Inventors: John R. Bradley, John E. Carsley
  • Patent number: 7278195
    Abstract: Method for producing a coated medical support device capable of insertion into the body, the method including the procedures of applying a coating to a section of a work-piece, positioning the work-piece in the vicinity of an electromagnetic field generator, and substantially proximate a forming mandrel, inducing electromagnetic forces in the work-piece which accelerate the work-piece toward the forming mandrel, and forming the work-piece to a medical support device, by changing the original physical configuration of the work-piece to a second physical configuration, the forming mandrel having a mandrel physical configuration, the second physical configuration being influenced by the mandrel physical configuration.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: October 9, 2007
    Assignee: Israel Aircraft Industries Ltd.
    Inventors: Abraham Baum, Elisha Hoch, Israel Schnitzer, Lior Kacir, Felix Rabinovich, Reuben Ilia
  • Patent number: 7263757
    Abstract: Electromagnetic (EMF) trimming, flanging and hemming steps are performed at a single workstation in a combined fixture designed to form a hemmed panel assembly, such as a vehicle closure panel. Two or more formed sheets, outer and inner panels, are positioned together for hemming. The panels are clamped and EMF coils are activated to provide EMF force to retain the panels and trim off excess addendum material from the outer panel. The coils are then activated to bend the trimmed edge upward against a flanging member and form a 90 degree flange. Flanging and trimming members are retracted and a coil member positions EMF hemming coils opposite the flange. The hemming coils are then activated and apply EMF force to bend the flange of the outer panel to a 180 degree angle, overlaying the edge of the inner panel and forming a panel assembly having a hemmed edge. Optionally, if needed, the flanging member is then lowered against the flange to assure flatness of the hem.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: September 4, 2007
    Assignee: General Motors Corporation
    Inventor: Edmund Arthur Herman
  • Patent number: 7256373
    Abstract: An apparatus (30) and method for forming of a vehicle's driveshaft (32) is provided which makes use of a PMF process. The coil device used in the PMF apparatus is assembled around the shaft from two or more coil sections (40, 41, 43; 42, 44, 45) firmly attached to one another, and which may be disassembled from one another to allow to remove the formed driveshaft (32).
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 14, 2007
    Assignee: Pulsar Welding Ltd.
    Inventors: Oren Gafri, Yuri Livshiz