Patents for B21K 1 - Making machine elements (7,621)
10/2004
10/06/2004CN1533856A Spoked wheel manufacturing method and spoked wheel product and tod parts used for said product
10/06/2004CN1533851A Method and device for mfg. nosing article
10/05/2004US6800144 Hot forging the steel; machining and optionally piercing the forged product; carburizing and quenching and tempering the machined steel to attain an effective case depth of 0.4 to 0.9 mm
09/2004
09/30/2004US20040192452 Manufacturing process of a clinch nut and clinch nut achieved by such a process
09/30/2004US20040187830 Sintered alloy valve seat and method for manufacturing the same
09/30/2004US20040187547 Methods and apparatus for manufacturing flanged articles
09/30/2004US20040187312 Method of manufacturing for aluminum alloy wheel rim
09/30/2004DE20220942U1 Cross linkage manufacturing method has cross flow pressing station followed by 2 successive calibration stations
09/29/2004EP1462208A1 Process for manufacturing a clinch nut, and clinch nut thus obtained
09/29/2004EP1462193A1 Method and apparatus for manufacturing flanged articles
09/29/2004EP1461542A1 Work piece, metal push belt and method and processing tool for producing the same
09/29/2004EP0891824B1 Hot forging device for bevel gear
09/29/2004CN1532009A Process for producing rivet crew nut and rivet screw nut produced by the process
09/23/2004US20040182209 Cold-headed standoff
09/23/2004US20040182125 Method and apparatus for manufacture of a forged rack
09/23/2004DE10311150A1 Verfahren zur Herstellung eines geschmiedeten Kolbens für einen Verbrennungsmotor A process for producing a forged piston for an internal combustion engine
09/23/2004DE10311149A1 Verfahren zur Herstellung eines geschmiedeten Kolbens für einen Verbrennungsmotor A process for producing a forged piston for an internal combustion engine
09/23/2004DE10311148A1 Verfahren zur Herstellung eines geschmiedeten Kolbens für einen Verbrennungsmotor A process for producing a forged piston for an internal combustion engine
09/23/2004DE10120392B4 Verfahren zum Herstellen von rotationssymmetrischen Bauteilen A process for the manufacture of rotationally symmetrical components,
09/22/2004EP1459822A1 Tool for deburring forgings
09/22/2004EP1459820A1 Method, machine arrangement and thread cutting device for producing a threaded projection on a flat workpiece, in particular on a metal sheet
09/16/2004WO2004079237A2 Valve for internal combustion engine, its method of manufacturing, and the high-temperature titanium alloy for the valve
09/16/2004US20040180567 Housing for receiving a bearing component and process for manufacturing same
09/16/2004US20040177507 Method of manufacturing rims for motor vehicles
09/16/2004US20040177505 Method for the production of a forged piston for an internal combustion engine
09/16/2004US20040177504 Method for the production of a forged piston for an internal combustion engine
09/16/2004US20040177503 Method for the production of a forged piston for an internal combustion engine
09/15/2004EP1456544A1 Ball-and-socket joint
09/15/2004CN1529763A Aluminium allloy for casting/forging, aluminium alloy cast/forged product and producing methods
09/15/2004CN1528543A Bicycle saddle fastener square rod stub working method
09/15/2004CN1528542A Method and apparatus for manufacturing reducing pipe
09/15/2004CN1166473C Method for producing ring gear
09/15/2004CN1166470C Tool ring and a nail machine comprising such tool ring
09/10/2004WO2004076095A1 Shaft and shaft molding device
09/09/2004US20040175261 Method of manufacturing vacuum pump rotors, and rotors obtained thereby
09/09/2004DE10307786A1 Hutmuttern aus Metall Metal cap nuts
09/07/2004US6785962 Method for producing a full face fabricated vehicle wheel
09/02/2004WO2004074697A1 Thread-cutting screw
09/02/2004WO2004073903A1 Metal forged product upper or lower arm preform of the arm production method for the metal forged product forging die and metal forged product production system
09/02/2004US20040170401 Method for manufacturing a hollow rack shaft
09/02/2004US20040168319 Manufacturing process for cooling channel piston with formable shoulder
09/02/2004DE10307534A1 Fabricating a roller body used for valve impulse in an internal combustion engine of a motor vehicle, involves forming roller body using extrusion materials, in which round profile of roller body is cut-off and formed from extruded cylinder
09/01/2004EP1452250A2 Method of manufacturing a cooling duct piston with deformable flange
09/01/2004EP1450971A1 Longitudinal component with mass accumulations
09/01/2004CN2637035Y Hexogonal bolt hexagonal head fine reducing, screw thread blank size reducing mould
09/01/2004CN2637034Y Super long high strength profile hexagonal bolt red upsetting blank process mould
09/01/2004CN2637033Y Hexagonal bolt screw stem reducing mould
09/01/2004CN1524643A Method for making rapid-to-dismount tribolets
09/01/2004CN1164384C Front axle die stamping composite technology for car
08/2004
08/31/2004US6782772 Hollow rack shaft and manufacturing method thereof
08/31/2004US6782598 Method of manufacturing hollow rack shaft
08/26/2004WO2004072509A2 Advanced geometry of skew and straight bevel gears produced by forging
08/26/2004US20040165941 Joint
08/26/2004DE10320208B3 Piston production process to make pistons involves forming saddle of base body of piston in countersink tool with material flowing against press movement of deforming tool
08/25/2004EP1450055A2 Cap nut made of metal
08/24/2004US6779271 Method for manufacturing a hollow rack shaft
08/19/2004WO2004069446A1 Method for the production of a high-pressure fuel tank
08/19/2004WO2004030847A9 Method and device for the production of a tubular workpiece, particularly a shock absorber piston rod, and such a workpiece
08/19/2004US20040161181 Low cost fluid dynamic bearing motor
08/19/2004DE10304961B3 Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers A process for producing a fuel high-pressure accumulator
08/18/2004EP1447158A2 Method for producing rack bar
08/18/2004EP1446244A1 Flattened u-bolt and method-for making said u-bolt
08/17/2004US6775908 Production method of cam lobe piece of assembled camshaft
08/12/2004WO2004067207A1 Method for producing rivets from cryomilled aluminum alloys and rivets produced thereby
08/12/2004US20040154423 Advanced geometry of skew and straight bevel gears produced by forging
08/12/2004DE10303757A1 Manufacturing method of gear with 90-180 teeth, by forging, annealing, trimming and grinding initial product of gear, rolling initial product to have 90 to 180 teeth, and then performing heat treatment and surface treatment
08/10/2004US6772615 Method of manufacturing hub unit for supporting wheel and die for manufacturing the same
08/05/2004WO2004065803A1 Screw, screw driver bit, and punch for forming screw head part
08/05/2004US20040151615 Cast aluminum alloy for forging, and aluminum cast-forged product and method of manufacturing the same
08/05/2004US20040151558 Threaded fastener
08/05/2004US20040149359 Method of fabricating a steel forging, and a forging obtained thereby
08/04/2004EP1443200A1 A method for producing a piston for an internal combustion engine and a piston produced by the method
08/04/2004EP1442809A2 Method for producing parts with hollow body
08/04/2004CN1518644A Combination of screw with screwdriver bit and header punch for manufacturing screw
08/04/2004CN1517518A Sintered alloy valve seat and its manufacturing method
08/04/2004CN1160169C Method of and apparatus for manufacturing pressed powder body
08/03/2004US6769175 Heat sink device manufacture
07/2004
07/29/2004US20040146376 Self-attaching fastener and method of attachment
07/29/2004US20040146375 Self-attaching nut
07/29/2004US20040145168 Steering column and manufacturing method thereof
07/29/2004DE4214444B4 Verfahren zur Herstellung von Kugelschalen für Gleichlaufgelenke sowie Profildorn zur Verwendung in dem Verfahren Process for the preparation of spherical shells for constant velocity joints and profile mandrel for use in the method
07/28/2004EP1440741A1 Method of manufacturing hollow member
07/28/2004CN2628183Y Forging products forming machine
07/28/2004CN1515804A Eccentric rotation shaft and electric motor shaft mfg. method
07/28/2004CN1159122C Forging process of aluminium wheel hub for bicycle
07/22/2004WO2004050269A3 Self-attaching female fastener elements and method fo forming same
07/22/2004WO2004028722A8 Cold formed differential housing with integrated ring gear
07/22/2004US20040140019 Method for preparing rivets from cryomilled aluminum alloys and rivets produced thereby
07/22/2004US20040139609 Method for use in manufacturing a bicycle spoked wheel, an accessory for a bicycle, a kit of parts intended for use with the accessory, and a magnetic insert that is destined to be removably attached to a spoke attachment element
07/22/2004DE10260560A1 Schwenkbolzen einer Schaltschwinge A shift rocker pivot pin
07/20/2004US6763757 Process for manufacturing a one-piece cooling-channel piston
07/20/2004US6763739 Hollow rack shaft and manufacturing method thereof
07/15/2004US20040134065 Metal plate rocker arm and method of manufacturing the metal plate rocker arm
07/15/2004DE10358351A1 Valve tappet for combustion engine and production process, has micro pits formed by radiation in the smooth gas carbon nitride steel upper surface of the tappet
07/15/2004DE10261555A1 Cross linkage manufacturing method has cross flow pressing station followed by 2 successive calibration stations
07/15/2004DE10257882A1 Component manufacturing process for rotary-symmetric transmission involves producing a number of different coupling bodies from single blank
07/14/2004CN2625080Y Finish forged straight bevel gear tooth die holder
07/14/2004CN1511673A Method for producing steel forge piece and forge piece produced therefrom
07/13/2004US6761621 Gear and method of manufacturing gear
07/08/2004WO2004056504A1 Steering pinion
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