| Patents for B21K 1 - Making machine elements (7,621) |
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| 03/14/2012 | CN102371327A Forging mould and method for high-speed steel spindle piece |
| 03/14/2012 | CN102371324A Bolt cold header, mould box thereof and correcting and adjusting method for positioning mould |
| 03/14/2012 | CN101920305B Hot heading machine nut preparation system |
| 03/14/2012 | CN101745786B Forging method of water supply connecting tube and secondary side manhole |
| 03/08/2012 | DE102011106705A1 Method for manufacturing driving wheel, involves dimensioning mold corresponding to hollow cylindrical wheel shaft based on predetermined dimensions of wheel shaft of blank |
| 03/07/2012 | EP2425911A1 Process for producing cast aluminum alloy member |
| 03/07/2012 | EP2425909A1 Method for manufacturing spacer nut |
| 03/07/2012 | CN101767169B Manufacturing method of magnesium screw and magnesium screw component thereof |
| 03/06/2012 | US8127735 Engine assembly with valve seat vent passages and method of forming |
| 03/06/2012 | US8127585 Process for manufacturing outer ring member for constant-velocity joint |
| 03/06/2012 | CA2620735C Method for cold forging high strength fastener with austenitic 300 series material |
| 03/06/2012 | CA2609883C Punch and related recessed screw |
| 03/01/2012 | US20120047638 Goggle Mask, Check Valve Device Thereof and Method for Manufacturing a Check Valve Device Thereof |
| 03/01/2012 | DE4321497B4 Hebebügelanordnung und Verfahren zu deren Herstellung Lifting yoke assembly and method for their preparation |
| 03/01/2012 | DE102010035590A1 Structure component i.e. crown gear wheel, manufacturing method for differential transmission, involves transformingly contacting partial region of portion of raw workpiece surface by tool, where portion is temporarily covered by tool |
| 02/29/2012 | EP2423525A1 Tripod constant-velocity universal joint and method for producing the same |
| 02/29/2012 | CN202151673U 一种解决锻压齿条齿形缺陷的修复模具 One solution forging mold rack tooth repair defects |
| 02/29/2012 | CN102365467A Crankshaft and method for manufacturing same |
| 02/29/2012 | CN102363194A Method for determining weight of round-section multi-stage sidestep axle freely forged blank auxiliary material |
| 02/29/2012 | CN101128679B Fluid bearing device and method of manufacturing the same |
| 02/28/2012 | US8122576 Positioning, handling and assembling system for manufacture of aeronautical parts |
| 02/23/2012 | US20120046115 Bolt Thread Damage Prevention Assembly |
| 02/22/2012 | CN202149160U 一种用于轴承滚动体冷镦机的离合器 A clutch bearing rollers for cold heading machine |
| 02/22/2012 | CN202146941U 齿轴压制定位装置 Pinion pressing positioning device |
| 02/22/2012 | CN102361711A Method for producing an internal thread element, internal thread element, and screw connection |
| 02/22/2012 | CN102357646A Method for forging nuclear-grade swing check valve body with high Cv value |
| 02/22/2012 | CN102357645A Device and method for forming central flange pipe joint from round rod material in one-step, multidirectional and composite manner |
| 02/22/2012 | CN101670416B 百万千瓦级核电主管道的锻造成型方法 Forging methods million-kilowatt nuclear charge of Road |
| 02/22/2012 | CN101264504B 电机轴锻件的加工方法 Motor shaft forgings processing methods |
| 02/21/2012 | US8117750 Clip for limiting motion of a torque converter clutch regulator valve |
| 02/16/2012 | US20120039685 Screw element, screw connection and method for producing a screw element |
| 02/16/2012 | US20120037115 Method for the production of a piston for an internal combustion engine and piston for an internal combustion engine |
| 02/16/2012 | DE102010034046A1 Spacer element for components, comprises shaft in form of longitudinally slotted metal sleeve, where cross-sectional U-shaped radial collar is formed at sleeve at end |
| 02/15/2012 | CN202143930U 轴管的热挤压锻造设备 Heat shaft tube extrusion forging equipment |
| 02/15/2012 | CN202143928U 一种新型十字轴预应力闭合锻模 A new cross-axis prestressed closed die forging |
| 02/15/2012 | CN102350475A Material overlapping and cold precision forging technique for straight toothed spur gear |
| 02/08/2012 | CN102343413A Stepped shaft forging method in free forging |
| 02/02/2012 | WO2012013284A1 Die for forging |
| 02/02/2012 | US20120025121 Pressure-balanced control valves |
| 02/02/2012 | US20120024268 Exhaust Gas Recirculation (EGR) Apparatus |
| 02/02/2012 | US20120024244 Camshaft speed sensor target |
| 02/01/2012 | EP2412993A1 Crankshaft and method for manufacturing same |
| 02/01/2012 | EP2411168A2 Stamping method and workpiece produced therewith |
| 02/01/2012 | EP2064095B1 Rear windscreen wiper comprising an electric drive assembly for motor vehicles |
| 02/01/2012 | CN202129400U 汽车轮毂轴管成型模具 Automotive wheel axle tube mold |
| 02/01/2012 | CN102335713A Process and special device for integrally forming convex navel nut for riveting by using wire rods |
| 02/01/2012 | CN102335712A Method for forming bolt head for automobile fastener |
| 01/31/2012 | US8104176 Method of manufacturing a developing agent regulating member for regulating an amount of a developing agent |
| 01/31/2012 | US8104174 Method for producing a piston |
| 01/26/2012 | WO2012010285A1 Method for producing a cooling channel system for internal combustion engines and piston produced in this way |
| 01/26/2012 | US20120021842 Tripod type constant-velocity universal joint and method for producing the same |
| 01/26/2012 | DE102010036609A1 Gesenk zum Schmieden eines eine Verzahnung aufweisenden Abschnitts einer Zahnstange einer Lenkvorrichtung Die forging a having a gearing portion of a rack of a steering device |
| 01/25/2012 | CN202123188U Large gear combination forging die |
| 01/25/2012 | CN202123187U Die utilizing free forging and hammering rotating shaft forge pieces with steps |
| 01/25/2012 | CN202123184U Hot-forging mould for driving disc hub of automotive transmission |
| 01/25/2012 | CN202123183U Light alloy integral die forging extrusion forming die for automobile hub |
| 01/25/2012 | CN102328015A Forging process for support bolt |
| 01/19/2012 | US20120013172 Rim or rim portion made of composite material |
| 01/19/2012 | US20120013171 Spoke Nipple with an Anti-shock Structure and its Manufacturing Method |
| 01/19/2012 | US20120011911 Flow formed gear |
| 01/19/2012 | DE102010027093A1 Producing hollow profile made of metal, preferably tube, comprises introducing hollow profile into shaping device, locally heating it, heating the hollow profile, and guiding it by guide arm for changing its wall thickness |
| 01/19/2012 | DE102010026984A1 Verfahren und Vorrichtung zum Herstellen einer Ausnehmung in einem Injektorkörper eines Einspritzventils Method and apparatus for producing a recess in an injector body of a fuel injector |
| 01/19/2012 | DE102009001946B4 Schrägzahnrad und Verfahren zum Herstellen desselben Of the same helical gear and methods for preparing |
| 01/19/2012 | DE102008039685B4 Verfahren zur Herstellung einer Hülse mit Blindnuten, die als Ölreservoir für eine Kette dienen A process for producing a sleeve with blind grooves, which serve as oil reservoir for a chain |
| 01/18/2012 | CN202114212U Feeding cam of cold header for bearing rolling elements |
| 01/18/2012 | CN202114211U One-step forming mould for external gear with negative camber cavity |
| 01/18/2012 | CN202114210U Bearing forging streamline |
| 01/18/2012 | CN202114203U Reverse neutral gear tooth form opening angle cold-finishing mould for automobile gearbox |
| 01/18/2012 | CN202114202U Tooth profile back taper die of reverse and neutral position shifting gears of vehicle gear box |
| 01/18/2012 | CN202114198U Female die for forming straight-toothed cylindrical gear |
| 01/18/2012 | CN102319863A Method for forging soldering-free funnel-shaped flanges for petroChina (PTR) flush and drainage pipelines of nuclear power plant |
| 01/11/2012 | EP2403665A2 Method and device for producing a profile on a sheet metal part, and sheet metal part that can be produced according to the method |
| 01/11/2012 | CN202105959U Lengthened bolt heat upset forming mold |
| 01/11/2012 | CN102317004A Method and apparatus for backing the inside teeth of a sliding sleeve produced by way of powder metallurgy for a manual transmission |
| 01/11/2012 | CN102310311A Bolt point-cutting cold heading molding process used for fastening automobile |
| 01/11/2012 | CN101879575B Semi-finished product molding technology of furniture connecting rod and special molding device thereof |
| 01/10/2012 | US8091236 Manufacturing method for toothed power transmission member having oil reservoir and toothed power transmission member manufactured by this manufacturing method |
| 01/10/2012 | CA2603996C Method for straightening an eccentric shaft |
| 01/04/2012 | CN202097361U Cold heading blank of fixed pin |
| 01/04/2012 | CN202097360U Cold heading blank of oil pipe joint |
| 01/04/2012 | CN202097345U Hot forging mould for auto automatic transmission output spline shaft |
| 01/04/2012 | CN202097344U Spur gear precision forging forming device with controllable motion floating die |
| 01/04/2012 | CN202097343U Shoulder screw forming die free of turning |
| 01/04/2012 | CN102303090A Device and method for compounding and forming central flange pipe joint from pipe blank in single-step and multi-directional way |
| 01/03/2012 | US8087169 Method of manufacturing sheet metal back face pulley |
| 12/29/2011 | WO2011162455A1 Horizontal forging device for thrust shaft for vessel |
| 12/29/2011 | WO2011161742A1 Gear with free curved surfaces |
| 12/29/2011 | WO2011160809A1 Method and device for the chipless formation of teeth on a workpiece using an axially shaping process |
| 12/29/2011 | US20110319209 Integrated bicycle chainring assembly |
| 12/29/2011 | US20110314887 Screw plug made of a metallic material, method for the production thereof, corresponding blank, and corresponding tool |
| 12/29/2011 | DE102010017592A1 Verfahren und Vorrichtung zur spanlosen axial umformenden Ausbildung einer Verzahnung an einem Werkstück Method and apparatus for chipless metal-forming axially training teeth on a workpiece |
| 12/28/2011 | EP2097187B1 Moulded part and method for producing such a moulded part |
| 12/28/2011 | CN202087759U 斜楔螺栓冷镦专用模具组件 Wedge bolt cold heading dedicated mold assembly |
| 12/28/2011 | CN202087757U 一种复杂结构铝合金轮毂锻扩成形模具 A complex structure of alloy wheels forging mold expansion |
| 12/28/2011 | CN202087746U 一种双工位卧式锻造液压机装置 A duplexer bit horizontal forging hydraulic press equipment |
| 12/28/2011 | CN102294430A 半球形封头随形锻造成型工艺 Hemispherical head with the shape forging process |
| 12/28/2011 | CN101628312B 高硅铝合金斜盘模锻工艺与模具 High-silicon aluminum swash plate and die forging process |
| 12/27/2011 | US8083657 Deflection compensating roll |
| 12/22/2011 | WO2011157345A1 Feed device for a bushing-widening device for perforated bushing blanks which consist, for example, of steel, and a method for forging perforated bushing blanks |
| 12/22/2011 | US20110309284 Flow rate control valve and assembly method therefor |