Patents for B21K 1 - Making machine elements (7,621)
05/2012
05/31/2012US20120132838 Manual to automatic valve conversion device
05/30/2012EP2457751A1 Method for manufacturing a ball part, as well as a ball part
05/30/2012EP2456581A1 Hollow crankshaft and method for manufacturing same
05/30/2012EP2274120B1 Metal forged crankshaft, apparatus for metal forging a crankshaft and method of metal forging a crankshaft
05/30/2012CN202239461U Die for coldly moulding brake pump piston
05/30/2012CN202239436U Miniature forging and stamping die for punch
05/30/2012CN202239430U Die for forging magnesium alloy automobile hub
05/30/2012CN202239415U Heat preservation structure of isothermal forging hydraulic press for magnesium alloy wheel hub
05/30/2012CN102482752A 发动机活塞用型材坯的制造方法 The method of manufacturing an engine piston billet profiles
05/30/2012CN102481619A 中空曲轴及其制造方法 The hollow crankshaft and a manufacturing method
05/30/2012CN102481618A 用于转向齿条的锻模设备 For the steering rack die apparatus
05/30/2012CN102029351B Method for manufacturing wind power forging by using 20CrMnMo continuous casting blank
05/30/2012CN101985155B Large screw pressing technology
05/30/2012CN101985154B Supporting device used for pressing large-scale screw
05/30/2012CN101979179B Method for forging thin and short shaft section at end of large-scale step shaft
05/30/2012CN101966552B Cold forging die externally provided with meridian components and forging method thereof
05/30/2012CN101961765B Manufacturing process and equipment for upset forging of flanges
05/29/2012US8186766 Bicycle spoked wheel and method for manufacturing the same
05/24/2012WO2012065982A1 Method for producing a threaded spindle and threaded spindle for adjusting devices in motor vehicles
05/24/2012US20120128470 Self-actuating bleed valve for a gas turbine engine
05/24/2012DE102010061905A1 Verfahren zur Herstellung des Einsteckendes eines Bohrers Process for the preparation of the insertion end of a drill
05/24/2012DE102010060614A1 Integrated stainless steel drilling screw i.e. bimetal drilling screw, manufacturing method, involves forming intermediate product into drilling tip, screw head and thread i.e. tapping screw thread, in subsequent steps
05/24/2012DE102010044052A1 Method for manufacturing threaded spindle for adjusting device in motor car, involves forming end stops of threaded spindle by deformation of spindle gear before processing process of spindle in tool
05/24/2012DE102010044051A1 Manufacturing method of threaded spindle for adjusting device in motor car, involves providing transition region between threaded section and flange, and changing cross-sectional shape of mounting portion of threaded spindle
05/23/2012CN202224581U Forging die for producing fan shaft
05/23/2012CN102470421A Horizontal forging device for thrust shaft for vessel
05/23/2012CN102463320A 机械传动齿轮轴冷锻精密成形工艺 Mechanical transmission gear shaft forging precision forming technology
05/23/2012CN101920304B Method for forging large steel shaft forging
05/23/2012CN101862807B Rotary forging method for large disc type work piece and forging device
05/23/2012CN101674905B Manufacturing method of compressor pulley
05/22/2012US8182405 Developing roller, developing roller production method, process cartridge, and electrophotographic apparatus
05/18/2012WO2012063900A1 Process for manufacture of fastening component made from aluminum-based alloy, and fastening component made from aluminum-based alloy
05/17/2012US20120119124 Valve and a method for providing such a valve
05/17/2012US20120117806 Rolling forming method of wheel disc
05/16/2012EP2453034A1 Process for production of roughly shaped material for engine piston
05/16/2012CN102451876A Manufacturing method of crankshaft and crankshaft manufactured through the same
05/16/2012CN101961829B Bolt molding process requiring chamfering and milling multiple grooves
05/15/2012US8176632 Regenerated elastic roller manufacturing process, regenerated elastic roller, electrophotographic process cartridge, and electrophotographic image forming apparatus
05/15/2012US8176631 Method for making positioning structures of a bicycle hub
05/10/2012WO2012059244A1 Self-piercing engraved rivet
05/10/2012US20120113497 Thermo-Pneumatic Actuator and Method for Producing Same
05/10/2012US20120112110 Ball valve seat seal
05/10/2012US20120111141 Cam follower and method for producing cam follower
05/09/2012CN202212514U Serial double-headed stud upsetting-extruding mold for turnout of special high-speed passenger transportation line
05/09/2012CN202212513U Series bolt head combined die for high-speed dedicated passenger line turnout
05/09/2012CN102443741A Steel ball for ball mill and manufacturing method for same
05/09/2012CN102441773A Hot precision forging and cold precision shaping compound process for spiral bevel gear
05/09/2012CN102441636A Production process for water tap quick opening valve rod and special mould thereof
05/09/2012CN102441635A Conformal forging process of inverted saddle-shaped forge piece
05/08/2012US8171638 Process for providing improved electrical properties on a roll for use in electrophotography
05/08/2012US8171636 Method of manufacturing a stator of a cage for a continuously variable transmission (CVT)
05/08/2012US8171632 Method of manufacturing integrally designed rotor wheels to exhibit an essentially identical natural frequency and mass using chemical etch machining
05/03/2012US20120104300 Composite seal
05/02/2012EP2447558A1 Method for manufacturing a drawn cup needle roller bearing having a seal ring
05/02/2012EP1655089B1 Method of producing a wheel
05/02/2012CN102438770A Method for producing a synchronizing ring, synchronizing ring and component of a synchronised manual transmission
05/02/2012CN102438768A Method for producing a component of a synchronization device for a manual transmission
05/02/2012CN102430692A Cold precision forging process for bevel gear and mould thereof
04/2012
04/26/2012US20120097276 Valve for water faucet and method for manufacturing the same
04/25/2012EP1868750B1 Method for straightening an eccentric shaft
04/24/2012US8161649 Differential gear assembly housing
04/19/2012US20120090177 Method for Assembling an Electromagnetic Gas Valve, and Electromagnetic Gas Valve
04/19/2012DE102011112178A1 Getriebevorrichtung und Verfahren zur Herstellung eines Wellenbauteils Transmission apparatus and method for producing a shaft member
04/18/2012EP2148752B1 Method for producing hollow shaft base bodies
04/18/2012CN202192200U 一种轴类件的锻模 A shaft member die
04/18/2012CN102416433A 销轴的一种加工工艺 A process of pin
04/17/2012US8156651 Centrifugally cast external layer for rolling roll and method for manufacture thereof
04/17/2012CA2549344C Method for making compressor rotor
04/12/2012US20120087611 Thermally compliant bearings with rolling element unloader race reliefs
04/12/2012US20120086259 Mixer Bar For A Stabilizer/Recycler
04/12/2012US20120085348 Breathing assistance device with linear actuated gas regulating valve
04/12/2012DE102011114844A1 Method for manufacturing near-net-shape premolded gear tooth system at shaft utilized in e.g. slew transmission of automobile, involves punching shaft head in area of gear tooth system at front side in parabolic manner
04/10/2012US8151436 Method of forming member, valve guide and method of forming the same, and method of forming tubular member
04/05/2012WO2012043706A1 Drive wheel bearing unit and method for manufacturing same
04/04/2012EP2436457A1 Ring manufacturing method, apparatus of the same and ring
04/04/2012EP2436456A2 Spacer washer for a transmission and method for its production
04/04/2012CN102405357A 三球销型等速万向接头及其制造方法 The tripod type constant velocity universal joint and a manufacturing method
04/04/2012CN102401108A Gear device and method of manufacturing shaft member
04/04/2012CN102397976A 钛合金紧固件冷镦成型工艺 Titanium fasteners cold heading molding process
03/2012
03/29/2012US20120073136 Wheel Rim
03/28/2012EP2433719A2 Apparatus for production of bearing housing
03/28/2012EP2221128B1 Wheel bearing device and manufacturing method therefor
03/28/2012CN202174210U 滑轮成型机 Pulley machine
03/28/2012CN102389938A Automobile half-axle forging production line
03/28/2012CN101508004B Sedan gear-box axle piece cold finish-forging formation method and die
03/22/2012WO2012035663A1 Crankshaft production method and crankshaft production device
03/22/2012DE10031878B4 Element mit Innenverzahnung und Vorrichtung zum Formen eines Elements mit Innenverzahnung Element with internal toothing and apparatus for forming an element having inner toothing
03/21/2012EP2431109A1 Method for manufacturing fastening screw and fastening screw
03/21/2012EP2429738A1 Method for manufacturing fixing members adapted for railway sleepers by cold forming
03/21/2012EP2429737A2 Method for producing a synchronizing ring, synchronizing ring and component of a synchronised manual transmission
03/21/2012EP2429733A1 Method for producing a component of a synchronization device for a manual transmission
03/21/2012CN202169351U 一种内六角冲挤模 An internal hexagonal extrusion die punch
03/21/2012CN102380574A Manufacturing method of washer
03/21/2012CN102380564A Forging method for six-throw crankshaft
03/21/2012CN101966553B Method for manufacturing rear axle driven gear of small and medium-sized automobile
03/21/2012CN101954440B Method for producing hollow body elements
03/15/2012WO2010133390A3 Pump housing for a hydraulic unit in a motor vehicle
03/15/2012US20120061982 Hoist ring assembly and method
03/15/2012DE102010045221A1 Stahlkolben für Verbrennungsmotoren Steel pistons for internal combustion engines
03/14/2012CN102378661A Cutting tool material, composite material, cutting tool and method for producing a cutting tool material
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