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| Number | Title | Issue Date |
| 7971463 | Stir forming apparatus An apparatus for forming a workpiece to a desired, non-planar configuration are provided. At least one friction stir forming tool, having a shoulder and a pin, is used to urge the workpiece to the desired configuration and friction stir form the workpiece. The formi... | 07/05/2011 |
| 7240529 | Partially reinforcing method and apparatus of metal material The present invention intends to provide the partially reinforcing method and apparatus for reinforcing the required part of the metal material having good forming property and relatively low strength (hardness and yield stress) by the press processing. The p... | 07/10/2007 |
| 7225655 | Method for producing a shaft comprising stop caps device containing one such shaft The invention relates to a method to manufacture a shaft (22) as well as a device containing such a shaft (22), in particular an armature shaft (22) of an electromotive drive (10), which is held by at least one shaft mounting, whereby a c... | 06/05/2007 |
| 7191626 | Method for producing an inner contour with an internal arbor acting on the inside wall of a workpiece In the production of an internal contour with an internal arbor acting on the inner wall of a cup-shaped or annular rotationally symmetrical workpiece, expansion and length change of the workpiece are avoided during cold forming. Thus, gear components with internal ... | 03/20/2007 |
| 7080438 | Junction method and junction tool While at least one of first and second tools 4 and 5 of a junction tool 6 is rotated, a workpiece W made of a plurality of plate materials W1 and W2 superimposed in their thickness directions is nipped between the first and second ... | 07/25/2006 |
| 7000319 | Method of manufacturing outer races for tripod-type constant velocity universal joints To make a peripheral lip region to be formed with chamfered portions by the use of a plastic working technique, to enable the use of a cup forming punch of a simplified shape so that a mold used therewith can be easily assembled and the punch when worn down can easi... | 02/21/2006 |
| 6959576 | Cold forming of splined transmission hubs A method for cold forming splined transmission hubs is provided. A blank (10) with an inner surface and an outer surface is secured on a tool insert support member (100). The tool insert support member (100) has an internal spline tooth profile ... | 11/01/2005 |
| 6918277 | Method of working end part of metallic tube body and metallic tube body, and method of manufacturing vibrationproof bush using the working method and vibrationproof bush This invention has an object of diminishing an inside diameter while securing the area of the terminal edge larger, at the extremity of a cylindrical body made of a metal used for a vibration isolating bushing and the like. Accordingly, the present invention provide... | 07/19/2005 |
| 6782622 | Method for manufacturing wheel-supporting hub unit and pressing mold for manufacturing same hub unit A cylindrical portion formed in the inside end portion of the hub is caulked and spread using a pressing mold assembled to an oscillating/caulking apparatus to thereby form the caulking portion. In working or forming the caulking portion, a cylindrical projecting po... | 08/31/2004 |
| 6772615 | Method of manufacturing hub unit for supporting wheel and die for manufacturing the same When a shape of the cylindrical portion (8b) to be formed into the calking portion (9b) is devised and when a sectional shape of the annular recess portion (23) of the die (15a) for plastically deforming the cylindric... | 08/10/2004 |
| 6711817 | Hypoid ring gear for differentials and method of producing the same The invention is intended to reduce the installation cost and running cost, minimize the production cost and increase the tooth surface strength of hypoid teeth. To this end, a hypoid ring gear for differential is produced by the steps of upset-forging a roun... | 03/30/2004 |
| 6639962 | Preventive maintenance method and apparatus of a structural member in a reactor pressure vessel A preventive maintenance method and apparatus for a structural member in a reactor pressure vessel according to the present invention reduce a tensile residual stress on a surface of the structural member by impinging a water jet from a nozzle onto a plan... | 10/28/2003 |
| 6634199 | Surface treating method, and treating member therefor Via a first path (P1) which extends for continuous treatment from one longitudinal end to the other of a cylinder head (H) passing between pairs of exhaust ports (15) and pairs of intake ports (14) opposed to each other with respect to one cylinder and wh... | 10/21/2003 |
| 6626020 | Method of producing vibration-isolating bushing A method of producing a vibration-isolating bushing with which it is possible to secure a larger area of the edge surface of an inner cylinder than in the prior art method. In upsetting one extremity of the inner cylinder by cold plastic working, after a ... | 09/30/2003 |
| 6612144 | Dent repair tool and method A dent repair tool has a motor tool having a body and a motor shaft capable of spinning, an elongated inner shaft connected at its proximal end to the motor tool positioned within an elongated outer shaft, and separated from the outer shaft by bushings; a... | 09/02/2003 |
| 6532786 | Numerically controlled forming method The present invention is a method for forming sheet material into contoured parts. The invention method includes these steps: A die is fashioned having an outside surface corresponding to the inside surface of the desired part. A plastically deformable sh... | 03/18/2003 |
| 6516647 | Method of producing homokinetic joints The invention relates to a method of manufacturing the outer part of a constant velocity joint, the outer part having in the finished condition a hollow chamber with a cylinder-shaped inner wall, in which there are provided ball raceways (1c) which run ob... | 02/11/2003 |
| 6473957 | Method and device for connecting overlapping flat parts The invention relates to a method for connecting overlapping flat parts in a mechanical joining process, for example for connecting panels, using a mould stamp (1a) and a matrix which is provided with a recess, the parts to be connected being placed betwe... | 11/05/2002 |
| 6457339 | Rocking press machine A rocking press machine includes a swinging metal die 2 and a rocking shaft 1 mounted above the metal die 1 and transmitting a swinging motion to the metal die 2, with the angle of eccentricity of the central axis thereof and the angular velocity of the o... | 10/01/2002 |
| 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 |
| 6276180 | Method and apparatus for manufacturing a shift gearwheel and shift gearwheel manufactured by same The subject matter of the invention is a method of manufacturing a shift gearwheel (1) with coaxially disposed and axially projecting shift teeth (5), which have an axial undercut. To said end, a shift gearwheel blank (1) having preformed shift teeth (5) ... | 08/21/2001 |
| 6176266 | Housing block A housing block for receiving valves, for example piston pumps and storage chambers for use in hydraulic vehicle brake systems. The invention uses a wobble tool to deform material of the housing block at a beginning of a hole essentially in the longitudin... | 01/23/2001 |
| 5763777 | Conical tool holder for precision balancer A machine for determining dynamically a residual unbalance in a workpiece having a conical surface is provided with a plurality of support elements, such as roller elements, that communicate with the workpiece at the conical surface thereof. The roller el... | 06/09/1998 |
| 5615569 | Wobble press In a wobble press with a first wobbling die-half and an axially parallel moving second half-die, the wobbling motion is generated by a plurality of hydraulically actuated working pistons cyclically engaging with the wobbling half-die and by means of the e... | 04/01/1997 |
| 5465598 | Method for forming an annular member An annular member is placed on a forming profile of a convex die without fixing the annular member to the convex die. Then, the convex die is moved toward a concave die which has an axis inclining with respect to an axis of the convex die. When the convex... | 11/14/1995 |
| 5398536 | Wobble press In a wobble press with a first wobbling die-half (1) and an axially parallel moving second half-die (2), the wobbling motion is generated by a plurality of hydraulically actuated working pistons (5) cyclically engaging with the wobbling half-die (1). By m... | 03/21/1995 |
| 5291644 | Plastic belt fastener and apparatus therefor Disclosed is an integral one piece plastic fastener for securing belt ends together. The fastener has upper and lower plastic plates clasped to a belt end with integral, hollow rivets projecting from the upper plate through openings in the bottom plate an... | 03/08/1994 |
| 5263238 | Method of forming a stem and assembling a snap ring in a groove in the stem A method of forming a stem and assembling a snap ring in a groove in the stem without expansion of the snap ring. A stem blank is formed having a reduced diameter extension. A snap ring is slid over the extension without expansion of the snap ring and is ... | 11/23/1993 |
| 5119659 | Device for changing stroke of caulking machine A device for changing the stroke of a caulking machine having a table on which is placed an article having a plurality of rivet shanks, and a rivet head forming tool. The table is adapted to be moved back and forth and right and left to bring the rivet sh... | 06/09/1992 |
| 5007281 | Plastic working method and apparatus Plastic working method and apparatus are disclosed. The plastic work such as forging is carried out by partial pressing contact of a die with a partial portion of a workpiece. The die is moved in a swinging or circular rocking fashion. The plastic working... | 04/16/1991 |
| 4984443 | Plastic working method and apparatus A plastic working method and apparatus which performs swiveling motion of an upper die mounted on a die holder. A toggle mechanism is provided for power assisting function. The toggle mechanism includes a link and the die holder. Upper and lower end porti... | 01/15/1991 |
| 4982589 | Swiveling type plastic working machine A swiveling type plastic working machine such as a forging machine having a slanted molding die holder which is swivelled about a vertical axis. The molding die holder is fixed with a first molding die confronting a second molding die on which a workpiece... | 01/08/1991 |
| 4947668 | Rolling milling tool A rolling milling tool is constructed so that the roller, in the form of a sphere, or cylinder or cone, is supported in a hydrostatic bearing to avoid counter rollers, thereby reducing the size of such tools. The roller is held in a bearing socket or guid... | 08/14/1990 |
| 4936125 | Plastic working method and apparatus Plastic working method and apparatus are disclosed. The plastic work such as forging is carried out by partial pressing contact of a die with a partial portion of a workpiece. The die is moved in a swinging or circular rocking fashion. The plastic working... | 06/26/1990 |
| 4795333 | Rotary forging Rotary forging of a component from powder is accomplished in a single forging operation without any sintering or other processing by firstly pressing the powder in a closed die situation to produce an initial compressed form and then subjecting this compr... | 01/03/1989 |
| 4749375 | Method for producing a multiple V-groove pulley and a pulley produced by said method A flat disc 1 having a central aperture is deformed on its periphery by spin-forming the metal of the disc so that the metal projects from each side of the plane of the disc and thereby forms a cylindrical rim 6 which is parallel to the axis of the disc. ... | 06/07/1988 |
| 4704066 | Turbine or compressor guide blade and method of manufacturing same A method for the manufacture of a guide blade for a turbine or compressor guide wheel, uses a profiled bar of heat and corrosion resistant metal that is cut to oversize length. This is in preparation for soldering the bar into a guide wheel, with the bar ... | 11/03/1987 |
| 4698992 | Wobble-die forging machine In the upper part of the wobble-die forging machine, a guide spigot of the bell-shaped upper die mounting engages, for the production of circular rocking movements, by way of self-aligning roller bearing means into a first eccentric sleeve, which is rotat... | 10/13/1987 |
| 4651548 | Wobble-die forging machine The ejector, penetrating the lower die of the wobble die forging machine, bears a punch vertically displaceable to the former, which interacts with a cutter arranged centrically and rigidly in the upper die to penetrate the workpiece and thrust the thereb... | 03/24/1987 |
| 4497188 | Process and apparatus for peeling wire A process and an apparatus for the peeling of wire wound into a coil and/or to be wound into a coil in a wire peeling machine. The wire is peeled bent in the form of a loop, with the individual wire loops having a curvature corresponding essentially to th... | 02/05/1985 |
