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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8176765 | Die assembly and a method of making it The present invention provides a novel die assembly for extruding and drawing ferrous and non-ferrous metal, and also to a method of making the same. The die assembly according to the present invention comprises a die core (3); at least one pre-stressed ring ... | 05/15/2012 |
| 7617713 | Final die for wire drawing machines A wiredrawing machine includes dies and capstans for reduces the cross sectional area of the wire. The machine includes a double die situated at the last capstan to reduce the cross sectional wire one final time in such a way that delamination and central bursting i... | 11/17/2009 |
| 7540181 | Wire-drawing die assembly Various embodiments of the present invention are directed to wire-drawing die assemblies. In one embodiment, a wire-drawing die assembly includes an assembly of at least three die segments. Each of the die segments includes an inner die surface comprising a superhar... | 06/02/2009 |
| 7469569 | Wire drawing die and method of making The present invention relates to a die comprising a die core (10) of a hard material and at least two pre-stressed rings (60, 70) of increasing diameter placed around the die core and methods of making and using the same. The die core (10) is he... | 12/30/2008 |
| 7401486 | Die, method of manufacturing stepped metal pipe or tube, and stepped metal pipe or tube A die through hole has an inside surface including a bell portion, an approach portion, and a bearing portion from the entrance side. The diameter of the approach portion is D1 on its entrance side and D2 on its exit side and gradually decreases from t... | 07/22/2008 |
| 7380326 | Method of attaching a self-attaching fastener to a panel A self-attaching fastener and panel assembly wherein the free end of the tubular barrel portion is coined and deformed axially and radially outwardly against a planar die face into an annular shape having a planar annular bearing surface supporting the panel and a f... | 06/03/2008 |
| 7368079 | Method for forming ultra hard sintered compacts using metallic peripheral structures in the sintering cell A method for forming an ultra hard material layer is provided. The method includes disposing a metallic liner inside the periphery of a refractory metal enclosure, introducing ultra hard material feed stock into the enclosure, and sintering using HPHT processing and... | 05/06/2008 |
| 7353981 | Method of making a composite metal sheet A composite metal sheet for use in making lightweight cookware or as a food warming tray comprising a layer of aluminum roll bonded to a layer of stainless steel defining a food-contacting surface on a first side. The food warming tray embodiment also includes a lay... | 04/08/2008 |
| 7347076 | Forging method and apparatus for forming helical gear Disclosed herein are a helical gear forging apparatus wherein a forming introduction portion thereof, used to form gear teeth of the helical gear, is variable in shape on the basis of the desired helix angle of the gear-teeth so as to constantly keep a predetermined... | 03/25/2008 |
| 7325434 | Method for manufacturing ring-shaped magnet material and manufacturing apparatus used therefor A method for manufacturing a ring-shaped magnet includes arranging, in a penetrating hole formed in a die, a mandrel having a cylinder tip portion of a diameter d1, a cylinder base end portion of a diameter d2, provided d1 | 02/05/2008 |
| 7290432 | Equipment for cold-drawing a metal wire Equipment for cold-drawing a metal wire. The equipment includes a succession of a sleeve with a cylindrical hole and a threading die with a conical hole. The sleeve is inserted into a support and terminates with an extension inserted into the conical hole of the thr... | 11/06/2007 |
| 7237418 | Method of extruding hollow light metal member, die for extruding hollow light metal, and member for extruding hollow light metal It is an object to realize and establish new extrusion technology for manufacturing a light-metal hollow member (product) having excellent mechanical properties with constant stability and also efficiently manufacturing the product having a strength satisfying a req... | 07/03/2007 |
| 7131314 | Material for diamond sintered body die and diamond sintered body die To provide a diamond compact die semi-manufactured product and a diamond compact die that do not crack during die processing. A diamond compact die semi-manufactured product includes a diamond compact and a holding ring. The holding ring is a cylinder compose... | 11/07/2006 |
| 7107811 | Tool pack assembly A tool pack assembly for use in the manufacture of two piece metal can bodies. The tool pack assembly of the present invention is constructed and arranged for use in a body maker assembly to form parts of metal cans. The tool pack assembly of the invention includes ... | 09/19/2006 |
| 7108607 | Helical groove fasteners and methods for making same Helical groove fasteners and methods for producing the same are provided for use in systems requiring fluid passage through the fastener. In one embodiment, the fastener includes a shank, a head, a threaded portion, and at least one groove extending through at least... | 09/19/2006 |
| 7096705 | Shear-extrusion method A shear-extrusion method of severe plastic deformation for fabrication of metal shapes with ultra-fine structures is described. The improvements of the method include unidirectional shear of any required intensity during one step processing and under high hydrostati... | 08/29/2006 |
| 7093474 | Extrusion die for manufacturing tube with small hollow portions, mandrel used for said extrusion die, and multi-hollowed tube manu-factured by using said extrusion die An extrusion die for manufacturing a tube with a plurality of small hollow portions arranged in a width direction of the tube, includes a female die for defining an outer periphery of the tube and a mandrel combined with the female die. The mandrel includes a body p... | 08/22/2006 |
| 7077755 | Method of preparing ultra-fine grain metallic articles and metallic articles prepared thereby An apparatus and method are provided for angularly extruding a workpiece through a die to form blanks and articles having refined grain structure. The die is also used to form the workpiece to a desired shape, such as a cylinder. The angular extrusion method can be ... | 07/18/2006 |
| 7077867 | Prosthetic knee joint having at least one diamond articulation surface Prosthetic joints, components for prosthetic joints, superhard bearing and articulation surfaces, diamond bearing and articulation surfaces, substrate surface topographical features, materials for making joints, bearing and articulation surfaces, and methods for man... | 07/18/2006 |
| 6938815 | Heat-resistant electronic systems and circuit boards Methods of making improved electronic systems and circuits boards, and more specifically to methods of making improved electronic systems and circuits boards using heat-resistant composite materials having superior mechanical, thermal, and electrical properties.... | 09/06/2005 |
| 6924454 | Method of making an abrasive water jet with superhard materials Methods for making abrasive water jet mixing tubes with superhard materials are presented. Also presented are methods for making a tubular elongate superhard material bodies. ... | 08/02/2005 |
| 6912885 | Method of preparing ultra-fine grain metallic articles and metallic articles prepared thereby An apparatus and method are provided for angularly extruding a workpiece through a die to form blanks and articles having refined grain structure. The die is also used to form the workpiece to a desired shape, such as a cylinder. The angular extrusion method can be ... | 07/05/2005 |
| 6832502 | Apparatus for swaging an object An apparatus for swaging an end of a tubular (22) is described as comprising a swaging head (17) for providing the swage to the end of the tubular (22). The swaging head (17) has two or more formations (22A, 22B) provided th... | 12/21/2004 |
| 6813924 | Process for the wall ironing of a product in sheet form, and a wall ironing tool Process for the wall ironing of a product in sheet form, which is formed from a metal sheet coated on at least one side with a layer of plastic, the wall-ironing tool comprising a forming surface which the product with a plastic coating layer moves along during the ... | 11/09/2004 |
| 6810712 | Split die and die nib defined by the same A split die includes a plurality of die pieces which can be assembled into a die nib. The die nib defines a central wire forming passage which has a cross section of a substantially rectangular shape or a square. The cross section of the wire forming passage is prog... | 11/02/2004 |
| 6796162 | Method and tool of tungsten/heavy metal alloy for hot-forging solid state copper and copper alloys The tungsten/heavy metal alloy is suitable for tools such as extrusion dies and extrusion mandrels for the hot-forming of copper and copper alloys. The novel alloy consists of 80 to 89.9% by weight of tungsten, 2 to 7% by weight of chromium, and a remainder of binde... | 09/28/2004 |
| 6776019 | Extrusion die for hollow member, mandrel for said extrusion die and male die for said extrusion die An extrusion die for a hollow member includes: a male die for defining a plurality of hollow portions of the hollow member, the male die including an annular base portion and a bridge portion bridging the annular base portion; a female die for defining an outer peri... | 08/17/2004 |
| RE38534 | Extrusion die An extrusion die (10) includes a die body (30) having an upstream face (32) and a downstream face (34) with an extrusion profile (22) passing through the body (30) from the upstream face (32) to the downstream face ( | 06/15/2004 |
| 6715330 | Device and method for pressing a plastically deformable blank The invention concerns a device and a method for continuous pressing of a plastically deformable blank into a three-dimensional section with a predetermined cross-sectional area, comprising a substantially cylindrical, fixed die, an opening formed in the die, throug... | 04/06/2004 |
| 6705146 | Device and method for pressing a plastically deformable blank The invention concerns a device and a method for continuous pressing of a plastically deformable blank into a three-dimensional section with a predetermined cross-sectional area, comprising a substantially cylindrical, fixed die, an opening formed in the die, throug... | 03/16/2004 |
| 6668611 | Aluminum or aluminum alloy extruding die There is disclosed an aluminum or aluminum alloy extruding die, which comprises Co-group alloy, Ni-group alloy, Cr-group alloy or like high temperature wear-resistant alloy coating applied by thermal spraying on a required die surface portion having been ... | 12/30/2003 |
| 6591654 | Method for producing seamless hollow extruded products of aluminum alloy and die set therefor An extrusion die set includes a charging die and forming die that permit the extrusion of seamless hollow products from a solid billet of aluminum or aluminum alloy on a single cylinder horizontal extrusion press. The charging die imparts a rotational com... | 07/15/2003 |
| 6557388 | Method of determining dimension of extrusion die and extrusion die produced based on the same A method of determining at least one dimension of an extrusion die includes determining a plurality of reference points on a contour of an opening of the extrusion die. Sizes of a plurality of figures with same shapes corresponding to the plurality of ref... | 05/06/2003 |
| 6449997 | Process for metal wire drawing and a tool for actuating the process In an improved process for drawing metal wires and a tool for actuating the process, a metal wire is coated with a thin surface layer of lubricant and subsequently drawn, gradually in a series of single drawing operations. In a final of the drawing operat... | 09/17/2002 |
| 6374659 | Pressure wire drawing tool with detachable pressure and drawing dies A tool suited to the pressure wire drawing of wire rods and wires having a hole passing through it, includes a casing detachably disposed within the casing, a wire drawing nib separate from the pressure die and detachably disposed within the casing and al... | 04/23/2002 |
| 6370934 | Extrusion tool, process for the production thereof and use thereof In an extrusion tool--in particular a disk-shaped pressing die with at least one shaping opening for the extrusion of metal such as aluminum or an aluminum alloy--comprising a steel material--in particular a low-distortion hot-working steel--with a surfac... | 04/16/2002 |
| 6370933 | Die and method for reducing controlling the formation of flash on parts A die for reducing the formation of flash on parts includes a first die section and a second die section defining therein a cavity. The first die section includes a pair of first surfaces and the second die section includes a pair of second surfaces which... | 04/16/2002 |
| 6351979 | Extrusion die An extrusion die is provided to improve wear resistance and to suppress damage to the shaping section of the core die. The core die consists of a plurality of individually prepared protruding rod members 5 that includes a protrusion section 3a and a base ... | 03/05/2002 |
| 6314836 | Wire drawing die with non-cylindrical interface configuration for reducing stresses The present invention is addressed to improving a blank for a wire drawing die formed from an annular cemented metal carbide support component having a lengthwise extent from an entrance end to an exit end and extending radially about a central longitudin... | 11/13/2001 |
| 6233998 | Easy mode pipe-reducing device An easy mode pipe-diameter reducing device provided for feeding a metallic pipe into the hole confined by the wall surfaces of a conical spring mounted in the die bodies of the device, wherein, wall sections of the die bodies with constant diameter guides... | 05/22/2001 |
