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| Number | Title | Issue Date |
| 7461533 | Forging method forged product and forging apparatus A forging apparatus 1A includes a swaging apparatus 2 equipped with a fixing die 10, a guide 20 having an insertion passage 22 for inserting and holding a bar-shaped raw material 5 in a buckling preventing state, and a punch... | 12/09/2008 |
| 7454941 | Upsetting method for working a metal slug, method for preparing a slug for a forging operation according to the method and device for implementing the method The invention relates to an upsetting method for working a metal slug having a determined slenderness, characterized by the fact that the slug is at least partly positioned in the direction of its length, in an upsetting pot in a cylindrical housing provided for thi... | 11/25/2008 |
| 7412864 | Method of forming trailer receiver The present invention relates to an improved method of forming a trailer receiver for use in connection with a trailer hitch assembly for towing trailers, campers, boats and the like. The invention relates to an improved method for forming a trailer receiver that ut... | 08/19/2008 |
| 7406852 | Upsetting method and upsetting apparatus An upsetting method capable of executing diameter expansion of a diameter expansion scheduled portion of a raw material unevenly in a peripheral direction is provided. A guide 20 having an insertion hole 21 for receiving and holding the diameter expans... | 08/05/2008 |
| 7337647 | Gear and method and device for manufacturing the gear A method for manufacturing a gear, wherein the gear is formed on a forging process by a die having an inner peripheral surface. A plurality of top surfaces corresponding to a bottom surface of the gear and both projected side surfaces corresponding to tooth surfaces... | 03/04/2008 |
| 7310986 | Method for producing a compensation collar for an injection valve The positioning of the actuating drive in a fuel injector with a piezoactor (2) that is screwed into the housing (1) of the fuel injector is performed by applying a voltage (U) to the piezoactor (2) that corresponds to a given idle stroke (h), a... | 12/25/2007 |
| 7283330 | Method of manufacturing a suspension using coining A method of manufacturing a suspension member designed to carry a slider and read/write head elements in a magnetic data storage device. The method includes forming the suspension member into a desired length and width configuration with a nominal thickness dimensio... | 10/16/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7257981 | Closed forging method, forging production system using the method, forging die used in the method and system, and preform or yoke produced by the method and system A closed forging method for producing a forged product includes preparing as a forging material a cylindrical cast ingot that has a volume the same as the volume of a forged product and assumes a shape having an upper surface, a lower surface and a side surface and ... | 08/21/2007 |
| 7219524 | Method for manufacturing high-pressure piping part and structure thereof A high-pressure piping part includes a body structure forged in a closed space. The body structure is formed to include a main body portion formed by forward extrusion and side arm portions formed by side extrusion. The main body portion has therein a fiber flow for... | 05/22/2007 |
| 7213434 | Method for manufacturing universal joint yoke, forging die and preform A method for manufacturing a universal joint yoke that exhibits good yield in terms of material utilization through obtainment of a universal joint yoke perform whose excess metal to be trimmed is diminished and whose cup portion is of uniform height, includes a for... | 05/08/2007 |
| 7213435 | Splined clutch hub and method of making same An externally splined clutch hub and method for making the same is disclosed wherein a flat circular metal preform with a central opening is provided and contacted with a single forging die to simultaneously cold forge a centrally disposed tubular neck extending out... | 05/08/2007 |
| 7174763 | Hotformed hubs and method A method of manufacturing an irregularly shaped forging includes heating a billet to a predetermined temperature, placing the heated billet within the cavity of a die, advancing a punch into the cavity to begin to disperse the material into a plurality of radially e... | 02/13/2007 |
| 7131311 | Method of and apparatus for forming forging blank When an actuator is operated, an upper die is displaced downwardly, pressing a lower surface of a workpiece against a forming surface. After the upper die is displaced upwardly, an ejecting member is displaced upwardly to push the workpiece upwardly by a lower die. ... | 11/07/2006 |
| 7114361 | Microscale compression molding of metals with surface engineered LIGA inserts An inexpensive method of rapidly fabricating reactive metal (Zn, Al, Al-alloy, etc.) microscale structures including high-aspect-ratio microscale structures is disclosed. A high precision process uses conformal bond inhibitor coating and high temperature compression... | 10/03/2006 |
| 7111395 | Method for densifying teeth of a gear wheel A method and an apparatus are described for producing a gear wheel from a powder metal blank (1) which is sintered and pressed with an overmeasure in the flank and root region of the teeth and which in the region of the overmeasure is densified under plastic ... | 09/26/2006 |
| 7108119 | Sintered synchronizing ring The present invention relates to a synchronizing ring comprising a tapered internal bore provided with sharp axial teeth. The synchronizing ring comprises axial grooves distributed on the tapered internal bore, each groove extending over a surface corresponding to a... | 09/19/2006 |
| 7036349 | Scallop output shaft tools A die for forming a work-piece having a complex geometry includes a die insert having an interior surface that defines a first portion of the complex geometry and a retainer ring that selectively engages the die insert. The retainer ring includes a circumferential i... | 05/02/2006 |
| 6931904 | Method of forming a trailer receiver tube using hollow forward extrusion A method of forging a trailer receiver tube by providing a die having an inner surface defining a first portion and a second portion. Providing a hollow tube having an outer surface. Providing a punch having a body and a shaft extending therefrom sized to fit within... | 08/23/2005 |
| 6915676 | Method of forming a protruded shaft for an electronic memory device In a method of forming a protruded shaft on a metal base for an electronic memory device, the metal base is pressed down with a pressing tool from upper face side of the metal base placed on a die. The die is provided with a hole having a predetermined inner diamete... | 07/12/2005 |
| 6688154 | Die for forging rotor, forge production system and forging method using the die, and rotor A forging die for forging a cylindrical rotor having a plurality of vane-accommodating grooves which extend toward the axis of the rotor, includes an upper die; a lower die having a mold cavity in its center portion, and a plurality of vane-accommodating-... | 02/10/2004 |
| 6635143 | Product and process for tokens A token is manufactured using a combination of minting or casting operations and printing operations. The token comprises a metal base material that is minted or cast to the size and shape desired including embossed or debossed areas at selected locations... | 10/21/2003 |
| 6514374 | Product and process for tokens A token is manufactured using a combination of minting or casting operations and printing operations. The token comprises a metal base material that is minted or cast to the size and shape desired including embossed or debossed areas at selected locations... | 02/04/2003 |
| 6438844 | Method and apparatus for manufacturing constant velocity joints A method and tool are provided for manufacturing an outer race for constant velocity joints by plastic deformation of a preform having a cavity open on one side to produce axial ball tracks and cage guide surfaces. the preform is inserted within an outer ... | 08/27/2002 |
| 6408672 | Process for cold forming tube ends A process for cold forming the ends of metal tubes to reinforce same includes a die cavity into which the tube is placed. The die cavity includes a section with a recess having a greater diameter than the tube. The tube is placed such that a portion is le... | 06/25/2002 |
| 6389868 | Forging die incorporated with a forging apparatus A hydraulic pressure control apparatus comprises a high pressure accumulator for sucking pressure oil supplied to a relief chamber of a relief valve to make changeover for the relief valve from a valve-closed state to a valve-open state when a forming loa... | 05/21/2002 |
| 6325194 | Hydraulic control clutch device equipped with a guide tube and method for producing such a tube A device comprising an outer body (6) integral with a guide tube (4) defining on its own a blind ring-shaped cavity (40) axially oriented wherein a piston (3) moves guided by the guide tube (4). The guide tube (4) is produced by impact extrusion. The inve... | 12/04/2001 |
| 6244943 | Surface-processing apparatus An apparatus to process, in particular, curved surfaces using one or more grinding or polishing tools which includes a housing (2) having a drive system (3, 20, 19, 12) powering at least one tool seat (1) particularly for a grinding or polishing tool (W) ... | 06/12/2001 |
| 6205836 | Method for manufacturing piston by forging and forging die An improved method of forging a piston and a forging die therefor. The forging die is formed from a pair of pieces which form an area where the forged material is extruded into. These pieces merge at a parting line that passes through the center of the ou... | 03/27/2001 |
| 6168754 | Method and apparatus for densifying powder metal preforms A multi-stage forming tool for densifying the outer perimeter of post-sintered powder metal preforms includes a series of axially spaced die plates having different sized die openings arranged from largest to smallest. An oversized powder metal preform it... | 01/02/2001 |
| 6151948 | Methods and apparatuses for producing complex-shaped metal parts by forging Methods and apparatuses for near net warm forging relatively small, complex shaped parts, such as automotive rocker arms, is disclosed. Die and punches are provided, which collectively have surfaces corresponding to the surfaces of the as-forged parts. Ce... | 11/28/2000 |
| 6142004 | Load-bearing shaped part and a method for manufacturing shaped parts A method is provided, which comprises the following steps: Firstly, a profiled material of aluminum is prepared. Then, a profiled piece of predetermined length is produced by cutting the profiled material to length. This profiled piece is then inserted in... | 11/07/2000 |
| 6041641 | Method for working groove A method for forming a groove by plastic deformation to provide improved working efficiency. A hole 4 having a diameter larger than a width W of a desired groove 6 and a depth deeper than the desired depth of the groove 6 is formed in an end face 2 of a r... | 03/28/2000 |
| 6035688 | Forging die apparatus A forging die apparatus comprises a punch for applying a pressurizing force to a forging material arranged in a cavity, a cylindrical member installed to surround a part of outer circumference of the punch, for making displacement integrally with the punc... | 03/14/2000 |
| 6032508 | Apparatus and method for near net warm forging of complex parts from axi-symmetrical workpieces A female die and a punch for forming relatively complex parts from axi-symmetrical workpieces, and the method of using the female die and punch to form the parts from the workpieces are disclosed. The female die and punch are used in a forging apparatus t... | 03/07/2000 |
| 6032507 | Pre-bending of workpieces in dies in near net warm forging A female die of a closed die set for use in near net warm forging a part includes a cavity having a tapered upper portion and a lower portion. The upper portion is configured to support a workpiece at a preliminary position in the cavity, and to cause the... | 03/07/2000 |
| 5953950 | Method and apparatus for manufacturing disk products having helical ridges A method and an apparatus for producing a disc product having a plane carng a relief and helical ridges on the outer peripheral side. The inventive production method and the apparatus therefor have enabled a continuous processing of a material mass to fo... | 09/21/1999 |
| 5937691 | Method of forming an inner flange on a sheet metal member having a cylindrical portion The present invention relates to a method of forming an inner flange on a sheet metal member having a cylindrical portion with an inner flange 3 required in coupling of a shaft such as a pulley used in an automobile. The axial length of a boss formed on t... | 08/17/1999 |
| 5934135 | Apparatus and method for near net warm forging of complex parts from axi-symmetrical workpieces A female die of a closed die set and a punch for near net warm forging complex shaped parts such as lugs from axi-symmetrical workpieces are disclosed. The punch includes a bottom forming surface having opposed chamfer surfaces which move workpiece materi... | 08/10/1999 |
| 5904623 | Apparatus for forming a slot in a semi-product of a bolt prior to thread formation An apparatus for forming a slot in a semi-product of a bolt prior to thread formation includes a punch and a die mechanism. The die mechanism includes a tubular member, and an elongated die member formed integrally with a slot-forming plate which is locat... | 05/18/1999 |
