| Patents for B21K 1 - Making machine elements (7,621) |
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| 08/08/2012 | EP1834716B1 Method of producing toothed transmission member having oil holders and toothed transmission member produced by the method |
| 08/08/2012 | CN202367143U Hot extrusion forging device of flange axle tube |
| 08/02/2012 | US20120193971 Bicycle rim and method of manufacture thereof |
| 08/02/2012 | US20120192817 Variable force valve spring |
| 08/01/2012 | CN202356572U Material returning cam of screw forming machine |
| 08/01/2012 | CN102615478A Forging process of wind power main shaft |
| 08/01/2012 | CN102615240A Rivet forming machine |
| 08/01/2012 | CN102615239A Processing process of wheel hub screw bolt for automobile |
| 08/01/2012 | CN102615238A Machining method for lock bolt of torsion shear |
| 08/01/2012 | CN102615237A Manufacturing method of wing bolt molded by cold forging |
| 08/01/2012 | CN102615236A Cold precision forming device for asymmetric cylindrical gear |
| 07/31/2012 | US8230834 Hollow poppet valve and method of manufacturing the same |
| 07/26/2012 | US20120187321 Easily Replaceable Valve Assembly for a High Pressure Pump |
| 07/25/2012 | CN202343838U Mold for forging forge piece with long axis |
| 07/25/2012 | CN202343835U Mold for forging short shaft type forged pieces |
| 07/25/2012 | CN202343826U Cold heading processing device for high-strength self-locking nuts |
| 07/25/2012 | CN102606605A Nut with elastic gasket |
| 07/25/2012 | CN102606599A Function element in the form of a press element |
| 07/25/2012 | CN102601298A Triangular self-tapping screw manufacturing process |
| 07/25/2012 | CN102601294A Die assembly for forming bottom of spring washer nut |
| 07/25/2012 | CN102601293A Die assembly for forming torsional lock bolt |
| 07/25/2012 | CN102601291A Cold heading moulding die for tyre bolt |
| 07/25/2012 | CN102601288A Pre-tampering punching die of toothed bolt on surface of hexagonal flange |
| 07/25/2012 | CN102107256B Automatic hot heading near-net forming machine for head of T-shaped bolt part |
| 07/25/2012 | CN101947622B Method for forging special connecting pipe of vapor-water separation reheater of nuclear power plant |
| 07/25/2012 | CN101912944B Method for machining aluminum alloy hub |
| 07/25/2012 | CN101829756B Cutting-free forming die of expansion anchor bolt |
| 07/24/2012 | US8225509 Method for making a pivot arm assembly for semiconductor wafer handling robots |
| 07/19/2012 | WO2012095940A1 Wheel and method for manufacturing same |
| 07/19/2012 | WO2012063125A3 Tool for machining a workpiece |
| 07/19/2012 | US20120184384 Method of manufacturing collated t-nuts |
| 07/19/2012 | US20120181469 Thrust plate for butterfly valve |
| 07/19/2012 | DE102004004233C5 Verfahren und Vorrichtung zur Herstellung einer Dehnschraube Method and apparatus for the production of an expansion screw |
| 07/18/2012 | EP2475479A1 Hollow crankshaft having an offset junction plane |
| 07/18/2012 | CN102581206A Combined die for forming cylindrical head shaft shoulder screw |
| 07/18/2012 | CN102581205A Cutting-free molding mould for big flat head screw |
| 07/18/2012 | CN102581204A Turriform forming process of internal and external rings of first-generation hub bearing |
| 07/18/2012 | CN102581195A Steel die assembly joint bolt forming production method and combined forming die for steel die assembly joint bolt forming |
| 07/18/2012 | CN102581131A Trimming and reducing integrated forming mould for female screws |
| 07/17/2012 | US8224219 Fixing device, image forming apparatus, heat fixing member for fixing device, cylindrical rotating member and medium transporting device |
| 07/17/2012 | US8220353 Screw device manufacturing method and screw device |
| 07/12/2012 | WO2012063130A3 Method for forming a workpiece |
| 07/12/2012 | US20120175944 Pressure control valve arrangement having covers that are produced as a completely integral part with transverse channels by primary shaping |
| 07/11/2012 | CN202316900U 超长螺栓加工装置 Long bolts processing device |
| 07/11/2012 | CN102575613A Method for producing an aluminum piston for an internal combustion engine |
| 07/11/2012 | CN102574252A Piston assembly multiple step forming process |
| 07/11/2012 | CN102574197A Sintered coupling ring |
| 07/11/2012 | CN102574196A Method for manufacturing mechanical part excellent in rolling fatigue life |
| 07/11/2012 | CN102554565A Integral manufacturing method of runner of impulse water turbine |
| 07/11/2012 | CN102554112A Forging method for martensitic stainless steel pressure springs of nuclear power equipment reactor internals |
| 07/11/2012 | CN102554111A Novel extrusion process for hexagonal shouldered self-locking nut |
| 07/11/2012 | CN102554110A Method for producing hollow body elements, hollow body element, component, follow-on composite tool for producing hollow body elements |
| 07/11/2012 | CN102554109A Method for manufacturing fastening screw and fastening screw |
| 07/11/2012 | CN102554108A Cold-heading forming method and special mould for deep inner hexagonal hole bolt |
| 07/11/2012 | CN102554107A Cold forging forming process of small-module gear |
| 07/11/2012 | CN102554093A Pre-upset one-heating forming mold and pre-upset process |
| 07/11/2012 | CN101405418B Rolled material for fracture split connecting rod excelling in fracture splittability, hot forged part for fracture split connecting rod excelling in fracture splittability, and fracture split connect |
| 07/05/2012 | WO2012090892A1 Closed-die forging method and method of manufacturing forged article |
| 07/05/2012 | US20120172165 Bicycle Power Train Cogs |
| 07/05/2012 | US20120168658 Valve having an ablated flap |
| 07/05/2012 | DE102005041000B4 Verfahren, Fertigungslinie und Kolbenrohling zum Herstellen eines einteilig ausgebildeten Kolbens für Verbrennungsmotoren, sowie Kolben für Verbrennungsmotoren Process, production line and piston blank for producing a one-piece piston for internal combustion engines and piston for internal combustion engines |
| 07/04/2012 | CN202291216U 三复合电触头铆钉机反向器 Three composite electrical contact rivet machine inverter |
| 07/04/2012 | CN202291194U 风机轴夹具 Fan shaft clamp |
| 07/04/2012 | CN202291189U 锥齿轮冷精锻模具 Bevel gear cold forging dies |
| 07/04/2012 | CN102548684A Crankshaft production method and production apparatus |
| 07/04/2012 | CN102527913A Precision plastic forming method for tooth direction drum repair of straight spur gear |
| 07/04/2012 | CN102527912A Process utilizing upper flat and lower V-shaped anvil to forge stepped shafts |
| 07/04/2012 | CN102527911A Low-speed diesel crank bend die forging forming process |
| 07/04/2012 | CN102527900A Precision forging die of gear shaft and molding method of precision forging die |
| 07/04/2012 | CN102527895A Process and die for forging big circular ring with rectangular section |
| 07/04/2012 | CN102029350B Progressive forging forming method for large cake forged pieces |
| 07/04/2012 | CN102029347B Manufacturing method of gear shaft forge piece for offshore drilling platform |
| 07/04/2012 | CN101269390B Hollow rack manufacturing method and manufacturing apparatus |
| 07/03/2012 | US8211000 Conductive roller |
| 06/28/2012 | WO2012086638A1 Forging device |
| 06/28/2012 | US20120165107 Fastener, driver engaging with the fastener and punch producing the fastener |
| 06/28/2012 | US20120161042 Valve Apparatus |
| 06/27/2012 | EP2468432A1 Method for manufacturing a shifting gate, shifting gate and combustion engine |
| 06/27/2012 | EP1647418B1 Hub unit with wheel support and bearing ring, and method of manufacturing the hub unit |
| 06/27/2012 | CN102513498A Precise forging method for automobile driven spiral bevel gear |
| 06/27/2012 | CN101823115B Method for eliminating method of inner cavity of shaft type heavy forged piece |
| 06/20/2012 | EP2464476A1 Forging die apparatus for steering racks |
| 06/20/2012 | CN102500739A Manufacturing method for forging outer ring of outer ring sleeve of wheel hub by permeating rare earth |
| 06/14/2012 | DE102011115333A1 Bimetallschmiedeteil und -verfahren Bimetallschmiedeteil and procedures |
| 06/13/2012 | EP1716265B1 Method for producing shaped article of aluminum alloy and shaped aluminum alloy articl |
| 06/13/2012 | CN202270926U 用于汽车从动齿扩孔成形工艺的预锻件 Pre-reaming forgings used in automobile driven tooth forming process |
| 06/13/2012 | CN202270914U 操作机机械臂 Manipulator Manipulator |
| 06/13/2012 | CN102489658A Method for machining belt wheel with wheel hub by spinning |
| 06/13/2012 | CN102489657A Hot extrusion forging device and forging method of flange plate shaft tube |
| 06/13/2012 | CN102489656A Bearing forging production process by blanking long bar at 900 DEG C and continuously heating to 1050 DEG C at intermediate frequency |
| 06/13/2012 | CN101500823B Raceway ring member for bearing unit, bearing unit, and method and device for producing raceway ring member for bearing unit |
| 06/12/2012 | US8197949 Blank for a ring member of a bearing, manufacturing method for the same, manufacturing method for a ring member of a bearing, and bearing |
| 06/07/2012 | WO2012072324A1 Pump housing, in block form, of a vehicle brake system, and method for producing the same |
| 06/07/2012 | US20120137523 Process for manufacturing rolling contact member, process for manufacturing rolling bearing, raceway member of rolling bearing and rolling bearing |
| 06/07/2012 | US20120137520 Integrated valve sleeve |
| 06/06/2012 | EP2460617A1 Method for producing a spindle with large bearing seat |
| 06/06/2012 | EP2460603A1 Roll forming method for wheel spoke |
| 06/06/2012 | DE102010053119A1 Verfahren zur Herstellung einer Gewindespindel mit großem Lagersitz A process for producing a threaded spindle with a large bearing seat |
| 06/06/2012 | CN101947631B Rolling mechanism |
| 06/05/2012 | US8191261 Aluminum sleeve for magnetic development roller |