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| Number | Title | Issue Date |
| 7441335 | Methods of electromagnetic forming aluminum alloy wheel for automotive use 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 colu... | 10/28/2008 |
| 7389664 | Electromagnetic forming device for sheet of material An electromagnetic forming device for a sheet of material is provided. The electromagnetic forming device includes a fixing base, a magnetic concentration block, an electromagnetic actuator, and a die. The fixing base has a groove. The magnetic concentration block i... | 06/24/2008 |
| 7165429 | Device for and method of electromagnetic high energy pulse deformation of workpieces, in particular metal sheets of electrically conductive material A device for electromagnetic high energy pulse deformation of workpieces of an electrically conductive material has a deformation tool including a coil carrier and at least two partial coils arranged on the coil carrier, at least one surge current generator to which... | 01/23/2007 |
| 7069756 | Electromagnetic metal forming A scheme for deforming a sheet of material is provided. In accordance with one embodiment of the present invention, an apparatus for deforming a sheet of material is provided. The apparatus comprises a die portion, an electromagnetic actuator, and a conductive frame... | 07/04/2006 |
| 6993948 | Methods for altering residual stresses using mechanically induced liquid cavitation A mechanical transducer induces liquid cavitation, causing pressure waves in a liquid which are applied against a metal surface to afford localized elastic and plastic tensile microstrain. The pressure waves alter the surface tensile stresses in the treated metal by... | 02/07/2006 |
| 6968718 | Method for electromagnetically forming metallic member and metallic member formed by electromagnetic forming A method for electromagnetically forming a metallic member includes deforming an end of a metallic member by electromagnetic forming, pressing the outer surface of the deformed end on the surface of a mold to form a flange having a predetermined shape at the end of ... | 11/29/2005 |
| 6923031 | Apparatus and method for removing dents from metal A system for removing dents from metal or other materials comprising (i) a device which includes at least one magnet having a handle detachably held to a portion of the magnet by magnetic attraction and a roller detachably held to a portion of the magnet opposite th... | 08/02/2005 |
| 6751994 | Method and apparatus for forming a structural member A method of forming a structural member includes hydroforming the blank to form a hydroformed member and finishing the hydroformed member by positioning the wall of the hydroformed member between a die surface and an electromagnetic discharging element having a non-... | 06/22/2004 |
| 6708542 | Electromagnetic and/or electrohydraulic forming of a metal plate A metal plate is formed in a process comprising cutting, perforating or both, by forcing the plate, by means of an abrupt and intense force towards a mold having openings or boundaries defined by wall sections which extend essentially normal to the forming plane of ... | 03/23/2004 |
| 6564605 | Apparatus and method for pulsed magnetic forming of a dish from a planar plate An electromagnetic forming apparatus for forming an essentially planar metal plate into a dish having a three-dimensional pattern, is provided. The apparatus comprises a mould having a forming surface with a contour corresponding to said three-dimensional... | 05/20/2003 |
| 6467146 | Method of forming of a tubular metal section A process for forming closed sections using electromagnetic force. A sheet metal stock is folded into a generally closed section having flanges. The folded section is placed in a die and the die is closed. An electromagnetic force is applied to the die to... | 10/22/2002 |
| 6192733 | Two stage press A press (10) for operating a tooling unit in the performance of a manufacturing operation, such as crimping terminals onto a conductor. The press is adapted for attachment to the frame of a host machine (12), such as a lead maker, and for receiving a tool... | 02/27/2001 |
| 6170308 | Method for peening the internal surface of a hollow part The rate of impact between the peening elements and an internal surface of a hollow part is a function of the vibration frequency, and there is a cut-off frequency at which a hollow part can vibrate and induce repeated impact between its internal surface ... | 01/09/2001 |
| 6138355 | Method for manufacturing wheels A method for manufacturing a vehicle wheel includes the steps of providing a wheel rim and a spider and positioning the wheel rim and the spider adjacent each other. The wheel rim and the spider are then friction welded to each other. Subsequently, a port... | 10/31/2000 |
| 6128935 | Hybrid matched tool-electromagnetic forming apparatus incorporating electromagnetic actuator The present invention includes an apparatus for forming a metal work piece into a target shape, the apparatus comprising: (a) an male mold portion having a mold side and a back side; (b) a female mold portion having a mold side and a back side; the mold s... | 10/10/2000 |
| 6094809 | Apparatus for securing a wheel rim to a spider A method for manufacturing a vehicle wheel includes the steps of providing a wheel rim and a spider and holding the spider inside the wheel rim. The wheel rim and the spider are positioned in a high capacity forming machine. At least one of a portion of t... | 08/01/2000 |
| 6085562 | Hybrid matched tool forming methods The present invention relates to several hybrid methods of metal forming including: (1) a method involving a partial mechanical forming followed by electromagnetic forming; (2) a method involving the initial mechanical forming, followed by further mechani... | 07/11/2000 |
| 6050121 | Hybrid methods of metal forming using electromagnetic forming The present invention includes a method of forming a metal work piece into a target shape, said method comprising the steps: (a) obtaining a metal work piece, said work piece having an original shape; and (b)forming said metal work piece by mechanical act... | 04/18/2000 |
| 6050120 | Hybrid matched tool-electromagnetic forming apparatus The present invention relates to molds and mold portions that comprise or have integrated therewith a resinous material and comprise at least one electromagnetic actuator imbedded in the resinous material, so as to be capable of further forming the at lea... | 04/18/2000 |
| 6047582 | Hybrid matched tool-electromagnetic forming apparatus incorporating electromagnetic actuator The present invention is an apparatus for formimg a metal work piece into a target shape, the apparatus comprising: (a) a male mold portion having a mold side and a back side; (b) a female mold portion having a mold side and a back side; at least one of t... | 04/11/2000 |
| 5974853 | Magnetic press A magnetic press (10) for performing a manufacturing operation includes tooling (60) operatively connected to reciprocating parts comprising rods (22), and a magnet (41) connected to the rods (22) through a stationary plate (31). A control circuit (200) e... | 11/02/1999 |
| 5950470 | Method and apparatus for peening the internal surface of a non-ferromagnetic hollow part The present invention is a method and apparatus for peening the internal surface of non-ferromagnetic hollow parts. Ferromagnetic peening elements are inserted into the non-ferromagnetic hollow part, and a magnetic dipole creates a magnetic field through ... | 09/14/1999 |
| 5860306 | Electromagnetic actuator method of use and article made therefrom One of the key features of the present invention is the use of a electrical conduit arrangement that allows for the tailoring of the magnetic field so as to provide for the greater amount of force to be brought to bear generally in the center of the work ... | 01/19/1999 |
| 5813274 | Magnetic press A magnetic press (10) for performing a manufacturing operation includes tooling (60) operatively connected to reciprocating parts comprising rods (22), and a magnet (41) connected to the rods (22) through a stationary plate (31). A control circuit (200) e... | 09/29/1998 |
| 5813265 | Balanced electromagnetic peening An electromagnetic peening apparatus includes a first electromagnetic coil having a first face configured to conform to a first surface of a workpiece, and a second electromagnetic coil having a second face configured to conform to a second surface of the... | 09/29/1998 |
| 5634364 | Segmented coil for use in electromagnetic can forming An expandable, segmented coil is disclosed for use in electromagnetic can forming. The segmented coil comprises a central camshaft and a plurality of coil segments equally spaced about the central camshaft. Each of the plurality of coil segments comprises... | 06/03/1997 |
| 5502996 | Crimping press actuator assembly A magnet actuator assembly for reciprocating a ram shaft in a crimping press. The actuator assembly comprises stationary upper and lower electromagnet members and a movable central electromagnet member coupled to the ram shaft. The mating surfaces of the ... | 04/02/1996 |
| 5046345 | Power supply for electromagnetic proof load tester and dent remover A power supply for use with an electromagnetic force system used for dent removal or proof load testing, wherein the power supply includes slow and fast current pulse systems. The slow current pulse system includes a capacitor bank which is charged up to ... | 09/10/1991 |
| 4962656 | Control and monitoring method and system for electromagnetic forming process A process, system, and improvement for a process for electromagnetic forming of a workpiece in which characteristics of the workpiece such as its geometry, electrical conductivity, quality, and magnetic permeability can be determined by monitoring the cur... | 10/16/1990 |
| 4947667 | Method and apparatus for reforming a container This invention provides a method for expanding at least a portion of a cylindrical sidewall of a generally cylindrically shaped, electrically responsive, metallic body. This method comprises the steps of retaining at least a first portion of the metallic ... | 08/14/1990 |
| 4926677 | Die apparatus Apparatus and a method for processing work pieces, such as semiconductor lead frames, wherein the apparatus includes a power device such as a solenoid assembly, for driving an upper die into processing relationship to a work piece on a lower die with the ... | 05/22/1990 |
| 4703644 | Die apparatus having an electromagnetic drive Apparatus for mounting a pair of die members so that one die member can move toward and away from the other die member. The apparatus includes a pair of spaced die shoes for mounting respective die members and an electromagnetic unit for moving one of the... | 11/03/1987 |
| 4531393 | Electromagnetic forming apparatus An electromagnetic forming apparatus having an expandable electromagnetic forming coil supported within an associated clamping press and having a pulse power system continuously operatively associated therewith to facilitate magnetic forming or swaging of... | 07/30/1985 |
| 4400958 | System for measuring the thickness of a strip emerging from a rolling mill An arrangement for measuring the thickness of a strip emerging from a rolling mill is provided with a thickness measuring device and at least one linear inductor. The linear inductor exerts a pulling force on the strip which flatens the strip in the vicin... | 08/30/1983 |
