Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21K - Making forged or pressed products, e.g. horse-shoes, rivets, bolts, wheels › B21K 1 - Making machine elements
Patents for B21K 1 - Making machine elements (7,621)
12/2012
12/26/2012CN101925423B Method for manufacturing outward-flanged metallic member
12/25/2012US8337373 Conductive elastic roller and image forming apparatus comprising the same
12/25/2012US8336360 Notch pressing device for crash box of vehicle
12/20/2012WO2012172942A1 Face spline molding device, face spline molding method, outer joint member, and constant velocity universal joint
12/20/2012DE102011102848A1 Method for manufacturing wheel center of light metal vehicle wheel, involves forming final contour of wheel center by rolling blank against rotating die using roller tool
12/19/2012CN202606777U Cylinder head shaft shoulder screw forming combination die
12/19/2012CN202606763U Cold heading forming die for tire bolts
12/19/2012CN102825207A Forging process of main stainless-steel pipeline for nuclear power
12/19/2012CN102825206A Forging method of balance shaft of engine
12/19/2012CN102825205A Forging method of balance shaft of engine
12/19/2012CN102825191A Forging method of balance shaft of engine
12/13/2012WO2012168150A1 Method for the simultaneous production of a first and a second piston part
12/13/2012WO2012168136A1 Method for producing a hollow metal valve with improved cooling
12/13/2012US20120311861 Manufacturing method of roller used for manufacturing patterned retardation film
12/13/2012DE102011077182A1 Verfahren zum Herstellen einer Drossel A method of manufacturing a throttle
12/13/2012DE102011077088A1 Verfahren zur gleichzeitigen Herstellung eines ersten und zweiten Kolbenteils A process for the simultaneous production of a first and second piston member
12/12/2012EP2532924A1 Ball screw, manufacturing method of nut for ball screw
12/12/2012CN202591504U Wheel hub flashless precise forging die
12/12/2012CN102821890A Method of manufacturing door hinge for automobile
12/12/2012CN102814621A Automobile hub isothermal forging and spinning forming process
12/12/2012CN102814455A Pierce nut manufacturing apparatus
12/12/2012CN102814439A Hot-forging molding process of large-sized stainless steel nut
12/12/2012CN101754820B Device and method for the axial forming of elongated hollow bodies
12/11/2012US8328671 Randomized chain sprocket and method for making a sprocket
12/11/2012US8327542 Method for the production of a drop-forged balancing shaft
12/11/2012US8327541 Method of assembling a differential mechanism
12/11/2012US8327514 Apparatus for rivetting
12/06/2012US20120305117 Lead-free valve of faucet and process of manufacturing same
12/06/2012US20120304952 Valve seat and gasket for exhaust bypass valve
12/06/2012US20120304464 Method for manufacturing hollow engine valve
12/05/2012CN202571155U Cutting-free forming mold for large flat-head screw
12/05/2012CN202571138U Hot upsetting molding die for hexagon flange bolt
12/05/2012CN202571133U Bottom plate for nut die
12/05/2012CN202571129U Hexagon flange toothed bolt pre-upsetting stamping die
12/05/2012CN202571123U Shaping mold for specific end face welding screw
12/05/2012CN202571120U Core roll for gear forgings
12/05/2012CN102812263A Process for simultaneously producing more than one bearing ring for a tapered roller bearing
12/05/2012CN102812142A Aluminium alloy forging and method of manufacturing the same
12/05/2012CN102806291A Wind-powered main shaft forging method
12/05/2012CN102489657B Hot extrusion forging device and forging method of flange plate shaft tube
11/2012
11/28/2012CN202555763U Bolt inverted diameter-reducing device used on punching machine
11/28/2012CN101730801B Crank shaft and process for manufacturing material therefor
11/22/2012DE19937851B4 Verfahren zur Herstellung eines Rohrs oder Rohrsystems für den Einsatz in sogenannten Rohrleitungs-, Heizkreis- oder Kesselverteilern oder dgl. Vorrichtungen A process for producing a tube or pipe system for use in so-called piping, heating circuit distributors or boiler or the like. Apparatuses
11/22/2012DE102012208007A1 Diesel piston, useful for combustion engine, comprises head that defines dome on its upper side, and metal laminated plastic having layers, which are arranged at portion of dome, where plastic comprises low heat-resistant metal layer
11/22/2012DE102012007725A1 Method for manufacturing crankshaft for internal combustion engine, involves performing mechanical surface treatment process on remaining surface areas of crankshaft element, after assembling crankshaft element on surface region
11/21/2012CN202540305U Loading and unloading dual-claw robot of aluminum alloy wheel
11/21/2012CN202539464U Auxiliary forming mechanism for rear support of screw heading car
11/21/2012CN202539463U Device for forming and positioning head special-shaped bolt
11/21/2012CN202539462U Non-circular cross-section molybdenum acceleration electrode molding machine
11/21/2012CN102784877A Heading process of stainless steel rivet nut
11/21/2012CN102784868A Lattice-teeth bolt forming method and forming mold used by same
11/15/2012US20120288392 Composite metal-polymer bushing and crankshaft assembly
11/15/2012US20120285593 Motorcycle tyre and pair of motorcycle tyres
11/14/2012EP2521627A1 Reduced material content fasteners and systems and methods for manufacturing the same
11/14/2012CN202527651U Rivet forming machine
11/14/2012CN102773399A Machining process of engineering machinery crawler belt nut
11/14/2012CN102773398A Method for forging slender and thick-walled pipe fittings
11/14/2012CN102773387A Forging method for flange type ball valve cover
11/14/2012CN102343413B Stepped shaft forging method in free forging
11/14/2012CN102228951B Chambering-forging forming method for aluminum alloy hub with complex structure and die thereof
11/14/2012CN102059315B Riser upper cover and manufacturing method thereof
11/13/2012US8307551 Blank geometry of a gear
11/08/2012WO2012119589A3 Method for producing a piston for an internal combustion engine
11/08/2012US20120279467 Assembled Camshaft, Main Camshaft Body and Method for Producing an Assembled Camshaft
11/08/2012DE102012005562A1 Method for manufacturing internally toothed wheel, involves removing wheel portion from tubular intermediate portion, and forming internal teeth on wheel portion
11/08/2012DE102011050175A1 Achszapfen und Verfahren zu seiner Herstellung Journal and process for its preparation
11/08/2012DE102011050058A1 Strengthening a dynamically loaded forging part, preferably a chassis component of a motor vehicle, by introducing residual compressive stresses, comprises heating a deburring portion of the forging part and strengthening by stamping
11/07/2012EP2520445A1 Axle journals and method for its production
11/07/2012CN102766803A Free forging processing process of alloyed tool steel 5CrNiMo for footstep shaft
11/07/2012CN102764954A Forging process for wind generator spindle
11/07/2012CN102764850A Micro screw discharging device for cold header
11/07/2012CN102764849A Process method for forging lifting hook
11/07/2012CN102764848A Processing technology of welded nut
11/07/2012CN102764847A Precision forming method of straight/helical tooth cylindrical gear
11/07/2012CN102764843A Method and die for processing bolt
11/07/2012CN102764838A Gear thermal precision forging machining process adopting carburizing steel 20CrMnTi as material
11/07/2012CN102764836A Forging method for titanium alloy disk-shaped piece
11/07/2012CN102125977B Automobile speed changer engaging gear integral tapering and forming mould
11/06/2012US8302447 Device for forging bush-shaped objects and a forged part produced therewith
11/06/2012US8302305 Method for manufacturing cast iron member
11/01/2012WO2012147742A1 Fabrication method for stepped forged material
11/01/2012US20120277007 Magnesium-based alloy screw and producing method thereof
10/2012
10/31/2012EP2517806A1 Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
10/31/2012CN102756071A Forging method for AP1000 type nuclear power station reactor pressure vessel main bolt
10/31/2012CN102756070A Forging method of bearing ring
10/30/2012US8296950 Pre-aging of rollers, gaskets, or o-rings to improve material response to compression set and compression stress relaxation
10/25/2012US20120267555 Valve insert for a valve cartridge, corresponding valve cartridge for a solenoid valve, solenoid valve having said valve cartridge and method for producing a valve insert
10/25/2012US20120266845 Valve apparatus for an internal combustion engine
10/25/2012DE102011002208A1 Method for manufacturing suspension component, involves providing blank that is embossed in sections so that two embossed arms are produced, and embossed blank is inserted in spreading device, where embossed arms are spread in sections
10/24/2012EP2513462A1 Method for producing a piston for an internal combustion engine and piston that can be produced by means of said method
10/24/2012EP2512706A1 Method using powder metallurgy to manufacture a dog ring gear
10/24/2012CN102748360A High-locking bolt provided with groove end as well as processing method and roller thereof
10/24/2012CN102744360A Quick positioning device of automatic crankshaft forging loading hanger
10/24/2012CN102744357A Handle fastening screw processing technology
10/24/2012CN102744356A Full-fiber bending-upsetting method for crank shaft
10/24/2012CN101749323B Method for manufacturing steel ball for fan bearing
10/24/2012CN101542141B Spherical bearing and process for manufacturing the same
10/23/2012US8291596 Method of assembling a bearing assembly
10/23/2012US8291588 Method of manufacturing and controlling a butterfly valve for an internal combustion engine
10/18/2012WO2012140737A1 Crankshaft, method for manufacturing crankshaft, and device for manufacturing crankshaft
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