Expanding Hollow Work Patents (Class 72/61)
  • Patent number: 9498814
    Abstract: Example methods and devices for producing a shaped component may involve positioning a workpiece having a hollow region and consisting at least partially of steel in a mold of a device. One or more docking punches may secure the workpiece within the mold and serve to introduce a pressurized fluid into the hollow region of the workpiece within the mold. The workpiece may be hot-formed in this process. The present disclosure concerns a variety of methods and devices that may be utilized to counteract a cooling of the workpiece in a region of the docking punch and reduce a temperature difference that may exist between the workpiece and the device.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 22, 2016
    Assignee: THYSSENKRUPP STEEL EUROPE AG
    Inventors: Sascha Sikora, Jörg Gorschlüter
  • Patent number: 9061338
    Abstract: An apparatus and method are provided for the simultaneous forming of a plurality of shaped articles from plural sheet metal blanks. First and second sheet metal blanks are arranged between upper and lower forming dies, and a nozzle body having a generally diamond-shaped cross-sectional profile, transverse to an insertion direction, is inserted between the sheet metal blanks. When the forming tool is closed, upper and lower sealing surfaces of the nozzle body press the first and second sheet metal blanks, respectively, against sealing beads that are arranged one each within peripheral areas of the upper and lower forming dies. Opposite side edges of the nozzle body converge one toward the other so as to facilitate forming a seal along each of the side edges of the nozzle body. A pressurized fluid is introduced via the nozzle body for forming the sheet metal blanks within a die cavity.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: June 23, 2015
    Assignee: MAGNA INTERNATIONAL INC.
    Inventors: Boris Shulkin, William A. Kokosza
  • Publication number: 20150114975
    Abstract: A non-cylindrical pressure vessel storage tank is disclosed. The storage tank includes an internal structure. The internal structure is coupled to at least one wall of the storage tank. The internal structure shapes and internally supports the storage tank. The pressure vessel storage tank has a conformability of about 0.8 to about 1.0. The internal structure can be, but is not limited to, a Schwarz-P structure, an egg-crate shaped structure, or carbon fiber ligament structure.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 30, 2015
    Applicants: BATTELLE MEMORIAL INSTITUTE, HEXAGON TECHNOLOGY AS
    Inventors: Kevin L. Simmons, Kenneth I. Johnson, Curt A. Lavender, Norman L. Newhouse, Brian C. Yeggy
  • Patent number: 8991683
    Abstract: A method of forming a pack in a die by superplastic formation and diffusion bonding comprises applying a forming pressure within the pack to expand the pack within the die; and supplying gas between the die and the pack to apply a back pressure around an outside of the pack while the pack is being expanded to counteract the forming pressure to reduce surface mark off.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: March 31, 2015
    Assignee: The Boeing Company
    Inventors: Daniel G. Sanders, Larry D. Hefti, Gregory L. Ramsey
  • Publication number: 20150013894
    Abstract: A method and apparatus is presented. A method may comprise positioning a metallic bladder within a tool, the tool having a number of die liners that generate heat when exposed to a magnetic field; applying the magnetic field to the number of die liners to heat the metallic bladder; and pressurizing the metallic bladder.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 15, 2015
    Inventors: Marc Rollo Matsen, Alexander M. Rubin, Randall Dow Wilkerson, Carey E. Wilkinson, James Rodney Fox, Charles R. Prebil, Gregory James Schoepen Hickman, Jeffery Lee Marcoe
  • Publication number: 20140360242
    Abstract: An end band and method of forming an end band for a rotor. The end band includes a hollow cylindrical band, wherein at least a portion of the band has a grain flow in a direction parallel to the hoop stress of the band. The end band also includes at least a portion having a grain flow in a direction perpendicular to the hoop stress of the band.
    Type: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Kavithas Ponnampalam, Jong-Yeong Yung, William Louis Wentland, Craig R. Legros, Kevin L. Dickerson, Davis S. Behling
  • Publication number: 20140260479
    Abstract: A pressure sequence hydro-forming method is used to form an extruded structural tube. The extruded structural tube is placed in a hydro-forming die that is partially closed to compress the tube. The tube is filled with a hydro-forming liquid at a first pressure. The hydro-forming die is then closed and the pressure of the hydroforming fluid is increased as the hydro-forming die is fully closed. The pressure is increased to a second level of pressure to shape the tube into the desired part shape.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: S. George Luckey, Jr., Kiran Kumar Mallela
  • Patent number: 8833123
    Abstract: A method of manufacturing a branched pipe includes: a first swelling step of swelling a swelled part from a main body of a pipe blank by pressurizing the inner surface of the pipe blank by an elastic body, and simultaneously, forming an opening in the tip portion of the swelled part along a circumferential direction; and a second swelling step of swelling the swelled part from the main body by pressurizing the inner surface of the pipe blank by the elastic body.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: September 16, 2014
    Assignee: Komatsu Ltd.
    Inventors: Taiki Ogura, Tatsushi Itou
  • Patent number: 8826712
    Abstract: A pressure sequence hydro-forming method is used to form an extruded structural tube. The extruded structural tube is placed in a hydro-forming die that is partially closed to compress the tube. The tube is filled with a hydro-forming liquid at a first pressure. The hydro-forming die is then closed and the pressure of the hydroforming fluid is increased as the hydro-forming die is fully closed. The pressure is increased to a second level of pressure to shape the tube into the desired part shape.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 9, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: S. George Luckey, Jr., Kiran Kumar Mallela
  • Publication number: 20140196514
    Abstract: A hydroforming method for metal is capable of producing hardware having a throat in only one side and having approximately right-angled corners without causing thinning and breakage. The method includes using a working fluid to exert a liquid pressure on a metal embryo and cooperating with a push rod of a hydroforming mold to supply material from the lower edge, forcing the side sheet metals to bulge. Furthermore, by using the hydroforming mold to provide a downwardly pressing active force on the metal embryo, under feeding of the downwardly pressing active force cooperating with continuous liquid pressure, the metal embryo deforms and bulges such that each corner of the metal embryo and the wall corners of the die cavity of the hydroforming mold have approximately the same angles. Hardware, every angle of which approximates a right angle, can be obtained after removing the hydroforming mold. This method can also be used to obtain a metal box.
    Type: Application
    Filed: January 3, 2014
    Publication date: July 17, 2014
    Applicant: TECHNOLOGY ON PROTOTYPING ULTIMATE (TOPU)
    Inventor: Hui-Wen Hu
  • Publication number: 20140130560
    Abstract: An apparatus for forming a reclosable metal can includes a flexible bladder that receives pressure from at least one end. The bladder is received in movable dies that selectively open and close about the bladder, and more particularly about a metal body received between the bladder and die. The die preferably includes thread or lug profile cavities for forming circumferentially spaced thread lugs in the can body.
    Type: Application
    Filed: April 20, 2012
    Publication date: May 15, 2014
    Applicant: DAYTON SYSTEMS GROUP INC.
    Inventor: Steven T. Cook
  • Patent number: 8713982
    Abstract: The invention relates to a device for explosive forming of workpieces, comprising an ignition chamber and an ignition mechanism, wherein an explosive agent can be ignited at an ignition location in the ignition chamber using the ignition mechanism, and an ignition chamber outlet is provided, to be improved such that the ignition mechanism has a longer service life. The aim is achieved by a device wherein an impact breaker is provided in the propagation path (37) of the detonation wave.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: May 6, 2014
    Assignee: Magna International Inc.
    Inventors: Andreas Stranz, Alexander Zak
  • Patent number: 8683837
    Abstract: A method of forming a bottle-shaped or other contoured metal container by providing a hollow metal preform having a closed end and a wall thickness that decreases progressively in a direction away from the closed end, and subjecting the preform to internal fluid pressure to cause the preform to expand against the wall of a die cavity defining the desired container shape. The method may be employed in pressure-ram-forming procedures wherein a punch is advanced by means of a backing ram into the die cavity to displace and deform the closed end of the preform.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 1, 2014
    Assignees: Novelis Inc., Montebello Packaging, a division of Great Pacific Enterprises, L.P.
    Inventors: Robert Mallory, Yihai Shi
  • Patent number: 8667824
    Abstract: An electrode assembly for electro-hydraulic forming tool in which the insulation sleeve is assembled over an electrode rod. The insulation sleeve has a deflection surface that is beveled or oriented at an angle relative to the axis of the electrode rod. The electrode assembly may include a replaceable conical receptacle that facilitates placement of an electrode tip an insulation sleeve tip. An electrode tip profile that is shaped to minimize erosion caused by discharge of the electro-hydraulic forming machine.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: March 11, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: John Joseph Francis Bonnen, Sergey Fedorovich Golovashchenko, Scott Alwyn Dawson
  • Patent number: 8650921
    Abstract: With the invention, a method and device for explosive forming of work pieces, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, is to be improved, in that an ignition mechanism that is technically simple to handle, is produced with the shortest possible setup time, which permits the most precise possible ignition of the explosive with time-repeatable accuracy. This task is solved by a method and device, in which at least one work piece is arranged in at least one die and deformed by means of an explosive to be ignited, in which the explosive is ignited by means of induction.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: February 18, 2014
    Assignee: Cosma Engineering Europe AG
    Inventors: Andreas Stranz, Alexander Zak
  • Patent number: 8631671
    Abstract: A method and system for forming a part from a workpiece including a hollow portion, using a mandrel and a conventional press such as a stamping press includes filling the hollow portion of the workpiece with a mandrel material and transforming the mandrel material to form a mandrel. The mandrel material is removable from the formed part and may be recycled to form a mandrel for another workpiece.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: January 21, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Paul E. Krajewski, Michael H. Lovell, Tiffanie E. Coe, Terry A. Kent, Kevin R. Marks, William R. Rodgers, Howard William Cox, William Parker, Darrell W. Rebman, John Collins
  • Patent number: 8621904
    Abstract: A hydroforming apparatus and working method able to simply find a load path are proposed, which system and method use a mold in which contact sensors able to judge contact with a metal tube inside the mold are mounted at least at two different positions in the tube axial direction, perform a first step of axially pushing tube ends in a state with the internal pressure held at a constant value and stopping the progress of the axial pushing action when judging that among the contact sensors not yet in contact mounted at positions closest to the tube ends detect contact with the metal tube, next perform a second step of raising only the internal pressure while leaving the positions of the tube ends fixed and stopping the increase in the internal pressure when the contact sensor not yet in contact judges contact, next perform a third step of lowering the internal pressure to the value before raising it while leaving the positions of the tube ends fixed, and repeat said first step to third step until all of said c
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: January 7, 2014
    Assignees: Nippon Steel, Sumitomo Metal Corporation
    Inventors: Masaaki Mizumura, Koichi Sato, Manabu Wada, Yukihisa Kuriyama
  • Publication number: 20130298629
    Abstract: A method of forming a product via induction heating and forming of the product includes providing an induction heating coil for induction heating of a component and providing a die forming shell for supporting the component and for defining the final shape of a formed product formed from the component. The die forming shell includes a metallic material. A support structure is provided for supporting the die forming shell during the induction heating of the component. The support structure includes a metallic material. The support structure includes insulating portions to limit or substantially preclude inducement of electrical current through the support structure during the induction heating process. The component is inductively heated along its length while the component is in the die forming shell. The component is at least one of (a) heated before the formed product is formed and (b) heated while the formed product is formed.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 14, 2013
    Inventor: William C. Dykstra
  • Patent number: 8578746
    Abstract: A ring supporting device is provided with six support shafts capable of approaching and separating from the inner walls of metal rings. Each of the support shafts has an exposed side wall having formed thereon annular ridges and grooves. The side walls of the support shafts each have cushioning materials having a height substantially corresponding to the height of each of the grooves. The cushioning materials deform when the inner walls of the metallic rings make contact with the cushioning materials, and this relaxes a force which tries to expand the metallic rings from the inner wall side to the outer wall side.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: November 12, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Yoshiharu Watabe
  • Patent number: 8567223
    Abstract: An electro-hydraulic forming tool having one or more electrodes for forming parts with sharp corners. The electrodes may be moved and sequentially discharged several times to form various areas of the tube. Alternatively, a plurality of electrodes may be provided that are provided within an insulating tube that defines a charge area opening. The insulating tube is moved to locate the charge area opening adjacent one of the electrodes to form spaced locations on a preform. In other embodiments, a filament wire is provided in a cartridge or supported by an insulative support.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: October 29, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Sergey Fedorovich Golovashchenko, John Joseph Francis Bonnen
  • Patent number: 8544305
    Abstract: Provided are a conveying jig, a method of manufacturing the conveying jig, and a method of heat-treating metal rings using the conveying jig. The conveying jig is provided with a base and ten holding shafts raised from the base. Ridges and grooves are alternatively provided in the side wall of each holding shaft. The metal rings are held in position by being engaged in the grooves in the holding shafts. The space enclosed within the holding shafts is communicated with the atmosphere, and this allows, when the metal rings held by the conveying jig are subjected to heat treatment in a heat treatment furnace, an atmospheric gas to circulate in the space enclosed within the holding shafts.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: October 1, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshiharu Watabe, Seiichi Minegishi, Tetsuo Suzuki, Masaomi Saruyama, Masashi Takagaki
  • Patent number: 8533924
    Abstract: Process for producing a pressure vessel having an enveloping body which occupies an arch shape in its predetermined installation position. The enveloping body has pillow-shaped portions which are connected to one another by stamped transitions at the inner diameter area of the enveloping body. The enveloping body for the intended installation position is placed with its inner diameter area one-sidedly on a die having a raised wedge-shaped profile. A designated outer diameter area of the enveloping body contacts a supporting surface, and the enveloping body is filled with a pressure medium so that the enveloping body is tensioned on the die and, in so doing, is plastically deformed in the area of the wedge-shaped profile.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: September 17, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Norbert Ackermann, Thomas Meyer
  • Patent number: 8534109
    Abstract: A method and apparatus are disclosed for making a hydro-formed part by first hydro-forming a tubular blank to form an initially formed part. The initially formed part is clamped in a calibration tool with clamps. The initially formed part is connected to a source of electric current and electric current is pulsed through the initially formed part to reduce internal stresses in the initially formed part and reduce spring-back to form the initially formed part to a target shape.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 17, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 8534107
    Abstract: A hydro-forming tool is disclosed in which first and second electrohydraulic forming (EHF) electrodes are used to provide a pressure pulse in opposite ends of a tubular pre-form. Alternatively, an accumulator with a rupturable membrane may be provided in opposite ends of a tubular pre-form for hydro-forming the tubular pre-form. A multiple discharge hydro-forming tool is also disclosed in which several pairs of accumulators are provided with selectively rupturable membranes that are ruptured to provide a pressure pulse in opposite ends of a tubular pre-form. The accumulators or EHF electrodes may be sequenced to provide separate pressure pulses that may be coordinated with retraction of a filler plug or shifting of a split ring into their respective retracted positions. A plurality of pressure pulses may be used to form, pierce and trim the tubular pre-form.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: September 17, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 8511124
    Abstract: A punch for forming opposite ends of a copper tube into a T includes a tapered or shovel-nose such that the spacing between the ends of the opposed punches is reduced, thereby reducing the excess copper remaining in the T once formed. A method of forming the fitting employs the shovel-nose punches in a hydro-forming process to accommodate such results.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: August 20, 2013
    Assignee: Nibco Inc.
    Inventor: John W. Schlabach
  • Publication number: 20130192053
    Abstract: A system and method of manufacturing a metal vessel may include providing a preform formed of a work hardened metal that includes an open portion, a closed end portion, and body portion. The body portion of the preform may be preheated in a manner that limits heat being applied to the open portion and closed end portion of the preform. The preheated preform may be blow molded.
    Type: Application
    Filed: December 31, 2012
    Publication date: August 1, 2013
    Applicant: The Coca-Cola Company
    Inventor: The Coca-Cola Company
  • Publication number: 20130167607
    Abstract: A system and method of manufacturing a metal vessel may include inserting a preform into a mold that includes multiple segments, the preform being a work hardened metal. A pre-pressure may be applied to the preform at a first pressure level. The multiple segments of the mold may be closed, and the pressure being applied to the preform may be increased using a step function to a second pressure level after the mold is closed to cause the preform to take a shape defined by the mold.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 4, 2013
    Applicant: The Coca-Cola Company
    Inventor: The Coca-Cola Company
  • Patent number: 8464566
    Abstract: A method of manufacturing a metallic valve housing by hydroforming a tube section in a die is provided. The die includes an upper part having a stamp and a lower part having a depression. The tube section is placed in the die, filled with a liquid, and subjected to a high internal pressure. Opposite walls of the tube section in a middle portion between two tube ends is shaped in that one side of the tube section is pressed inwards transversely to the axis of the tube section by the stamp to form a concave curvature, and the opposite wall is pressed into the depression in the lower part to form a flat.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: June 18, 2013
    Assignee: Buerkert Werke GmbH
    Inventors: Walter Neumann, Gerhard Koch, Robert Pop, Klaus Beck, Klaus Siegert
  • Patent number: 8443642
    Abstract: A method of forming a tubular member with portions having finished corners formed in a hydroforming operation by initially forming a pre-form that includes sharp corners. The pre-form includes bulges of the tube material between the sharp corners that flow toward the intended corner locations as the tubular member is hydroformed. The bulges may be external ribs or internal recesses.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 21, 2013
    Assignee: Ford Global Technologies, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 8408034
    Abstract: A hot bulge forming die apparatus forms a preheated tubular material 10a into a tubular material 10d. The hot bulge forming die apparatus includes a lower die 21B having a cavity surface 211B and an upper die 31B having a cavity surface 311B. An elongated hole 215 is formed in a circumferential edge portion 215 of the lower die 21B so as to extend outwards, and a projection 315 is formed on a circumferential edge portion 314 of the upper die 31B so as to fit in the elongated hole 215. When the dies are clamped together, the projection 315 formed on the circumferential edge portion 314 of the upper die 31B fits in the elongated hole 215 formed in the circumferential edge portion 214 of the lower die 21B.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: April 2, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshimitsu Ishihara, Daisuke Yamamoto, Takayuki Kanou
  • Publication number: 20130055778
    Abstract: A tubular element extending along a central axis, which element comprises at least one locally deformed part, is formed by means of a hydroforming process. A tube is positioned in a die comprising at least two die parts. Subsequently a hydraulic pressure is applied to the inside of the tube, as a result of which at least a part of the tube present in a cavity defined by the die parts is locally deformed. The die parts defining the cavity are axially moved toward each other upon formation of the locally deformed parts, thereby reducing the dimension of the cavity.
    Type: Application
    Filed: March 2, 2011
    Publication date: March 7, 2013
    Applicant: KISS ENGINEERING B.V.
    Inventor: Mathieu Ernest Antonius Maria Slangen
  • Patent number: 8381560
    Abstract: The present invention provides a hydroforming method able to increase the expansion ratio to obtain a complicated shape hydroformed product and able to reduce the number of steps of work, that is, a hydroforming method loading a metal pipe into a divided mold, clamping the mold, then applying an internal pressure and pushing force in the pipe axial direction to said metal pipe, comprising, in a first hydroforming step, expanding said metal pipe in one direction of said metal pipe cross-section to obtain an intermediate product having a circumferential length of 90% to 100% of the circumferential length of the product shape in all of the expanded part in the pipe axial direction and having a height greater than the height of the product in said one direction and at least part of the pipe axial direction, then, in a second hydroforming step, reducing the height in the one direction of said intermediate product in all or part of the pipe axial direction while shaping the product to the final product shape.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: February 26, 2013
    Assignee: Nippon Steel Corporation
    Inventors: Masaaki Mizumura, Yukihisa Kuriyama
  • Patent number: 8365388
    Abstract: A method of joining plates of material to form a predetermined structure, the method comprising: assembling a first plate (40) of a material comprising at least one recess (100) against a second plate (80) of material such that the at least one recess (100) of the first plate (40) is in an exterior surface of the first plate (40) on a side of the first plate opposite to the side which faces the second plate (80); bonding a portion (120) of the first and second plates (40, 80) to one another; superplastically forming the bonded plates, wherein the superplastic forming causes the material of the second plate (80) which is opposite to the at least one recess (100) of the first plate (40) to be driven towards the recess (100), and wherein the unbonded portion of the second plate (80) is deflected away from the plate to form the predetermined structure.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 5, 2013
    Assignee: Rolls-Royce PLC
    Inventors: Richard M. Jones, Oliver M. Strother
  • Patent number: 8328075
    Abstract: The invention provides methods of superplastic forming and diffusion bonding and a gas inlet tube that facilitates the methods which produce structures that are substantially mark off free. Methods include disposing a sealed pack into a die having a patterned surface and an opposite surface; applying a first pressure within the die around an outside of the pack; applying a second pressure within the pack, the second pressure exceeding the first pressure; and forming the pack by superplastic deformation into a diffusion-bonded structure. Further, a gas inlet tube is provided having an inner tube and an outer tube, where the outer tube is weldable to the pack in a gas tight seal.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: December 11, 2012
    Assignee: The Boeing Company
    Inventors: Daniel G. Sanders, Larry D. Hefti, Gregory L. Ramsey
  • Publication number: 20120285213
    Abstract: A method of hydro-forming an elongated tubular member that has areas of predicted high strain and areas of predicted low strain. The tubular member is initially deformed into a preliminary preform shape by compression in a preform die. Metal in the areas of predicted low strain is stretched during the preforming process by radially deforming the tube between two halves of the preform die. The preliminary preform is then expanded with internal hydro-forming pressure to form a preformed tube. The preformed tube is then hydro-formed into a final die to form the final shape for the part. The extra metal in the areas of low strain is stretched into the areas of high strain in the final hydro-forming operation.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Sergey Fedorovich Golovashchenko
  • Patent number: 8297096
    Abstract: The object is to raise the yield by greatly eliminating the disposed amounts of the tube ends, prevent wrinkles due to closing the mold while applying internal pressure, cutting the plurality of steps of hydroforming and pre-processing of the tube ends, cutting the mold costs by simplifying the mold mechanism, and obtaining a hydroformed product formed with a flange along its entire length.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: October 30, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masaaki Mizumura, Koichi Sato, Yukihisa Kuriyama
  • Patent number: 8286319
    Abstract: In a method of connecting chassis parts to produce a chassis assembly, at least one end of a first chassis part is connected with a second chassis part in an overlap zone by a form fit and an interference fit through an internal high pressure joining process. The second chassis part serves hereby a seal of the one end of the first chassis element.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: October 16, 2012
    Assignee: Benteler Automobiletechnik GmbH
    Inventors: Jens Stolle, Dirk Voigt, Franz Beer
  • Patent number: 8281476
    Abstract: Disclosed is a method of manufacturing a multilayered tube, including: preparing an outer tube, an inner tube having an outer diameter of 95˜98% of an inner diameter of the outer tube, and dies with a shaping void having a diameter of 100.20˜100.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: October 9, 2012
    Assignee: Hyundai Hysco
    Inventors: Ju Haeng Hur, Dong Hyun Jeon, Yun Gyu Kim, Hyo Sub Kim, Sang Muk Na
  • Patent number: 8281630
    Abstract: The invention has as its object to perform hydroforming so that no buckling or wrinkles remain at a hydroformed product with a long expanded region and comprises performing a first step of raising the internal pressure in a state with the metal tube fixed in position at the two ends or a state applying axial pushing actions of 10% or less of the total amount of axial pushing action, then applying axial pushing actions while holding the internal pressure at a constant pressure so as to expand the metal tube near the ends, then performing a second step of raising only the internal pressure without applying any axial pushing action so as to thereby expand a center of the metal tube, then performing a third step of lowering only the internal pressure to the value of the constant pressure without applying any axial pushing action, then repeating the first to third steps one or more times, then raising the internal pressure in the state not applying any axial pushing action or applying an axial pushing action of 10
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 9, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masaaki Mizumura, Koichi Sato, Manabu Wada, Yukihisa Kuriyama
  • Patent number: 8266939
    Abstract: The object is to raise the yield by greatly eliminating the disposed amounts of the tube ends, prevent wrinkles due to closing the mold while applying internal pressure, cutting the plurality of steps of hydroforming and pre-processing of the tube ends, cutting the mold costs by simplifying the mold mechanism, and obtaining a hydroformed product formed with a flange along its entire length.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 18, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masaaki Mizumura, Koichi Sato, Yukihisa Kuriyama
  • Patent number: 8250892
    Abstract: Through the invention, a closure device for explosive forming with a connection unit movable relative to the explosive forming die between a working position on the die and a rest position is to be configured, so that the explosive forming die can be closed in simple and reliable fashion and, at the same time, the explosion forces supported. This task is solved by a closure device, in which a wedge structure is guided to move on a static holding structure and is motion-coupled to the connection unit, the resulting movement of the connection unit being directed across the movement of the wedge structure.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: August 28, 2012
    Assignee: Cosma Engineering Europe AG
    Inventors: Alexander Zak, Valentine Flitsch, Andreas Stranz
  • Patent number: 8220302
    Abstract: A device and method for making a bimetallic pipe, made up of a pipe telescopically inserted with clearance inside a pipe and projecting from both ends of the latter, including a fixed expansion head and a moveable expansion head, wherein the ends of the bimetallic pipe are inserted before proceeding to the hydraulic or oil hydraulic closure of particular clamping members around each end of the outer pipe while the inner pipe has the ends positioned against the corresponding elastic abutments made inside each of the above-mentioned heads, thus being free to move axially and radially to rotate around its own axis during plastic expansion thereof.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: July 17, 2012
    Assignee: Be. Tube S.R.L.
    Inventor: Silvano Benini
  • Publication number: 20120161369
    Abstract: A blow mold is disclosed. The mold comprises a pair of mold halves having an operative configuration wherein said mold halves together define a cavity for a container. The container has a main body and a characteristic selected from the group of characteristics consisting of: a push-up base; an integral finish; and an embossed or a debossed feature. Each of the pair of mold halves has a first portion and a second portion formed integrally with the first portion. When the pair of mold halves is in the operative configuration, the first portions collectively define the main body and the second portions collectively define the characteristic. The blow mold can be used for prototyping, and can also be used for production.
    Type: Application
    Filed: March 9, 2012
    Publication date: June 28, 2012
    Applicant: GARRTECH INC.
    Inventor: Tony Paget
  • Patent number: 8171769
    Abstract: A method of forming a flanged tubular member includes the steps of: positioning a tubular blank in a die; applying nominal pressure; closing the dies; and increasing pressure within the blank, thereby converting the tubular blank to a hydroformed member having the flange and a hem with a cavity therein. The die halves define: a die tubular cavity portion; a die hem cavity portion; and a die flange cavity portion. Upon closing the die halves with nominal pressure and then increasing pressure, (1) the blank is deformed within the die tubular cavity portion; (2) the flange is defined from a portion of the blank in the die flange cavity portion; and (3) at least an intermediate hem is defined in the die hem cavity portion.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: May 8, 2012
    Assignee: Ford Global Technologies
    Inventors: Bruno Barthelemy, Ramakrishna P. Koganti, Lawrence Anderson Queener
  • Patent number: 8136378
    Abstract: An electro-hydraulic forming tool for forming a sheet metal blank in a one-sided die has first and second rigid rings that engage opposite sides of a sheet metal blank. The rigid rings are contained within slots on a die portion and a hydraulic force applicator portion of the forming tool. The seals are either resiliently biased by an elastomeric member or inherently resiliently biased into contact with the blank.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: March 20, 2012
    Assignee: Ford Global Technologies, LLC
    Inventors: Sergey Fedorovich Golovashchenko, John Joseph Francis Bonnen
  • 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: 8056279
    Abstract: An inventive process is provided for creating residual compressive stress at a surface of a structure without resort to custom mandrels and dangerous high-pressure fluids. The inventive process yields autofrettage of a structure such as a tube, gun barrel and the like, the structure having an outer surface and an inner surface.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: November 15, 2011
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Robert Hansbrough Carter, William Steinle DeRosset
  • Patent number: 8020419
    Abstract: The invention provides a hydroforming apparatus for forming a length of tube. A hydroforming press includes an upper platen and a lower plate. A first die set is provided for forming a first lengthwise portion of the tube and a second die set provided adjacent the first die set which forms a second lengthwise portion of the tube. A first pivot acts between a first and second upper die so that the second upper die can be pivotally adjusted on the upper platen relative to the first upper die. A second pivot acts between a first and second lower die so that the second lower die can be pivotally adjusted on the lower platen relative to the first lower die. A die insert is provided having an upper die insert and a lower die insert that define upper and lower insert cavities that connect together the first and second cavity portions of the upper die set and the lower die set. This die insert is removably mounted as needed to accommodate the pivotal adjustment between the first and second die sets.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: September 20, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Mike M. Ghiran, Wei Ji, Mark P. Donoghue, Terry A. Kent
  • Patent number: 8001819
    Abstract: The present invention was made with the object of eliminating the short pipe member when attaching a bolting nut to a hydroformed part, preventing an increase in the difficulty of hydroforming for attaching the nut, extending the nut length so as to enable sufficient strength at the time of bolting, and enabling application even to thin wall hydroformed parts and comprises inserting a metal pipe into a split mold having a pierce punch able to be moved perpendicular to an axis of the inserted metal pipe or in a slanted direction, having a front part narrower than a center part, and having around the front part a nut having an inside diameter larger than an outside diameter of the front part and smaller than an outside diameter of the center part; hydroforming it; then making the pierce punch advance to pierce part of the hydroformed part and pushing the nut by a center part arranged behind the nut and embedding the nut in the metal pipe.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: August 23, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Masaaki Mizumura, Koichi Sato, Yukihisa Kuriyama
  • Publication number: 20110167886
    Abstract: A method of forming a bottle-shaped or other contoured metal container by providing a hollow metal preform having a closed end and a wall thickness that decreases progressively in a direction away from the closed end, and subjecting the preform to internal fluid pressure to cause the preform to expand against the wall of a die cavity defining the desired container shape. The method may be employed in pressure-ram-forming procedures wherein a punch is advanced by means of a backing ram into the die cavity to displace and deform the closed end of the preform.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Inventors: Robert Mallory, Yihai Shi