| Patents for B21K 1 - Making machine elements (7,621) |
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| 04/24/2013 | CN202894166U Valve core forging die |
| 04/24/2013 | CN103068500A Method and device for the chipless formation of teeth on a workpiece using an axially shaping process |
| 04/24/2013 | CN103056270A Method for designing gear forging die by three-order non-uniform rational B-splines |
| 04/24/2013 | CN101970894B Simplified rolling bearing unit and a method for manufacturing such a bearing unit |
| 04/23/2013 | US8424205 Method for manufacturing a bearing ring member |
| 04/23/2013 | US8424204 Method of forming composite powder metal gear |
| 04/18/2013 | WO2013054437A1 Method for manufacturing valve for internal combustion engine |
| 04/18/2013 | WO2013054436A1 Method for manufacturing valve for internal combustion engine |
| 04/18/2013 | US20130092776 Shaft-to-Roller Attachment for Clinker Grinder Roller |
| 04/18/2013 | US20130092255 Gas vent valve |
| 04/18/2013 | US20130092024 Method for simultaneously producing first and second piston parts |
| 04/18/2013 | US20130091970 Free-form surface gear |
| 04/17/2013 | CN202877463U Large marine full-fiber crankshaft bending upsetting multiple-crutch indexing positioning device |
| 04/17/2013 | CN102274921B Method for forming train shaft forgings |
| 04/16/2013 | US8419556 Nut, female thread machining device and female thread machining method |
| 04/16/2013 | US8418367 Method of manufacturing a rolling bearing unit for supporting a wheel |
| 04/11/2013 | WO2013051353A1 Part with integrally-formed rack teeth and method for fabricating same |
| 04/11/2013 | WO2013050020A1 Forging device for the production of a piston blank, and method for the production of the piston blank by means of said forging device |
| 04/11/2013 | DE112005003630B4 Ziehmatrize, Verzahnungswalzwerkzeug und Verfahren zur Herstellung einer Verzahnung auf einem Bauteil einer Welle-Naben-Verbindung Drawing die, spline rolling tool and method for producing a tooth on a component of a shaft-hub connection |
| 04/11/2013 | DE102011115048A1 Schmiedevorrichtung zur Herstellung eines Kolbenrohlings und Verfahren zur Herstellung des Kolbenrohlings unter Verwendung der Schmiedevorrichtung A forging apparatus for producing a piston blank and process for the preparation of the piston blank using the forging device |
| 04/10/2013 | CN202861316U Large aluminum alloy wheel hub isothermal forging production line |
| 04/10/2013 | CN202861315U Magnesium alloy wheel forging forming die |
| 04/10/2013 | CN202861314U Novel cycle valve semi-finished product process system |
| 04/10/2013 | CN202861313U Pipe fitting forming device with two ends provided with flanges |
| 04/10/2013 | CN202861303U Transmission shaft middle flange forging die |
| 04/10/2013 | CN103038548A Gear with free curved surfaces |
| 04/10/2013 | CN103028692A Forging and pressing method for long-shaft forged piece |
| 04/10/2013 | CN103028685A Processing method for high-class bolt |
| 04/10/2013 | CN102284672B Production process method for rail spike |
| 04/09/2013 | US8413329 Compressed gas cartridge lance housing |
| 04/04/2013 | WO2013048165A1 Method of manufacturing camshaft |
| 04/04/2013 | WO2013045064A1 Method and apparatus for manufacturing a gear wheel with stub toothing |
| 04/04/2013 | DE102011114504A1 Verfahren und Vorrichtung zur Herstellung eines Gangrads mit Kurzverzahnung Method and apparatus for manufacturing a speed gear with splines |
| 04/03/2013 | CN202845690U Nut machining device for ball screw |
| 04/03/2013 | CN202845673U Steel die assembly joint bolt upsetting rod and upsetting ball combined forming die |
| 04/03/2013 | CN103026081A Lightweight hybrid bearing assembly and a method of making thereof |
| 04/03/2013 | CN103025453A Die for forging |
| 04/03/2013 | CN103008525A Cold forging method of crankshaft of automobile compressor |
| 04/03/2013 | CN103008524A Method for forging step shaft with electroslag ingots |
| 04/03/2013 | CN101918158B Method of manufacturing metal member with plurality of projections |
| 04/02/2013 | US8412080 Developing roller manufacturing method, developing roller, developing device, and image forming apparatus |
| 04/02/2013 | US8409021 Method for manufacturing fitting including blind nut and tap tool for use in this method |
| 03/28/2013 | US20130079182 Pulley system for outdoor power equipment |
| 03/27/2013 | EP2572899A1 Rolling bearing device for wheel |
| 03/27/2013 | CN102989984A Forging process of forging and pressing central cavity through hole |
| 03/27/2013 | CN102989983A Forging method of automobile engine crankshaft |
| 03/27/2013 | CN102989982A Forging method of driving shaft for gearbox |
| 03/27/2013 | CN102989954A Forging method of excavator engine crankshaft |
| 03/27/2013 | CN102989951A Forging method of automotive camshaft |
| 03/27/2013 | CN102989950A Forging process of automotive besides-star wheel |
| 03/27/2013 | CN102989945A Processing method of forge piece pump shaft |
| 03/27/2013 | CN102989944A Forging method of expansion breaking connecting rod |
| 03/27/2013 | CN102989943A Processing method of automotive balancing shaft |
| 03/27/2013 | CN102989942A Forging method of single-throw crank shaft |
| 03/27/2013 | CN102248115B Method for forming and manufacturing hub precision forging member of vehicle transmission driving disc |
| 03/27/2013 | CN102056688B Method of making a ring |
| 03/26/2013 | US8402659 Sintered gear element featuring locally selective surface compression |
| 03/26/2013 | US8402656 Diaphragm damper and method of production and production apparatus of same |
| 03/26/2013 | US8402655 Method of processing orifice |
| 03/21/2013 | DE102012018938A1 Method for manufacturing camshaft of variable valve controller system, involves producing gear set at blank in gear portion and finishing processing of blank to form camshaft |
| 03/20/2013 | EP2569116A1 Die apparatus for forging steering racks |
| 03/20/2013 | EP2255977B1 Method for forming a front cogging |
| 03/20/2013 | CN202804065U Hot upsetting molding tooling for nut |
| 03/20/2013 | CN102974741A Forging method of valve cover part of valve |
| 03/20/2013 | CN102974740A Multi-directional forging process for oil drill rod joint |
| 03/20/2013 | CN102218501B Production process for silver-pin rivet |
| 03/20/2013 | CN101952067B Method for manufacturing spacer nut |
| 03/20/2013 | CN101547759B Rack and production method thereof |
| 03/19/2013 | US8398532 Developer rolls having a tuned resistivity |
| 03/14/2013 | US20130066517 Wheel bearing with sensor |
| 03/14/2013 | DE102012017525A1 Production method of one-piece solid metallic material gear used in vehicle transmission, involves providing solid metallic material blank and forming outer teeth and inner contour of concentric bore with final geometry, from the blank |
| 03/14/2013 | DE102012015985A1 Method for manufacturing component i.e. connection joint, for frame structure of motor car shell, involves forming hollow chambers in slug when forging process is enabled, and pressing stamper into slug |
| 03/14/2013 | DE102011053384A1 Manufacturing method of screw mounted with screwdriver, involves pressing longitudinal ribs formed between longitudinal grooves on mandrel of head, with wall of front portion, when screwing a thread on head |
| 03/13/2013 | EP2567109A1 Lightweight hybrid bearing assembly and a method of making thereof |
| 03/13/2013 | EP2566655A1 Piston assembly multiple step forming process |
| 03/13/2013 | CN202779598U Nut forming machine billet push-off device |
| 03/13/2013 | CN202779591U Bolt hot upsetting die |
| 03/13/2013 | CN102967299A Indexing positioning accuracy on-line monitoring system of marine crankshaft bending upset forging and using method thereof |
| 03/13/2013 | CN102284838B Heavy truck sleeve fork forge piece manufacturing process |
| 03/13/2013 | CN101626853B Axle body |
| 03/06/2013 | EP2564950A2 Outer joint member for constant velocity universal joint and method for manufacturing the same |
| 03/06/2013 | CN202762928U Profile ring forging piece tool used for automobile wheel hub |
| 03/06/2013 | CN102954200A Planet carrier output shaft mechanism and processing process thereof |
| 03/06/2013 | CN102950240A Rotary swaging forming method for automobile aluminum alloy wheel hubs |
| 03/05/2013 | US8387494 Punching method using punch and punch for punching |
| 03/05/2013 | US8387246 Shaft member for fluid lubrication bearing apparatuses and a method for producing the same |
| 02/28/2013 | WO2013026315A1 Inverter and triple composite electrical contact riveting machine having the inverter |
| 02/28/2013 | US20130047779 Carrier with center backbone and dual lateral cases |
| 02/28/2013 | US20130047433 Method of producing a hollow poppet valve and an apparatus therefor |
| 02/28/2013 | DE102004036983B4 Verfahren zur Herstellung eines Drosselgeräts für eine Brennkraftmaschine und Drossel A process for producing a throttle device for an internal combustion engine, and throttle |
| 02/27/2013 | EP2561938A1 Method of manufacturing a synchronizing ring |
| 02/27/2013 | CN202752531U Micro screw blanking device of cold header |
| 02/27/2013 | CN102941310A All-fiber crankshaft bending upsetting multi-crank indexing positioning device for large-sized ships and application method thereof |
| 02/27/2013 | CN102941309A Trimming device for four-station cold heading machine |
| 02/27/2013 | CN102941308A Thermal-forging forming production method for cam blank of cam shaft of automobile engine |
| 02/27/2013 | CN102941307A Process and device for machining of tooth pattern of automotive compressor spindle |
| 02/26/2013 | US8381615 Shaft such as a camshaft for internal combustion engines |
| 02/26/2013 | US8381564 Cage nut |
| 02/21/2013 | WO2013023831A1 Method and tool for producing a solid punch rivet |
| 02/21/2013 | DE102011111216A1 Synchronring Synchronizer ring |