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)
10/2012
10/18/2012US20120261603 Gate Valve Having Low-Friction Coating Over Substrate and Method for Making Same
10/18/2012DE102012005487A1 Method for manufacturing gear wheel structure that is utilized in rotation speed reduction device to drive joint of industrial robot, involves designing gear wheel such that gear wheel body is fixed on external periphery of groove
10/18/2012DE102007016893B4 Verfahren und Vorrichtung zum Fertigformen eines Gegenstands Method and device for blow molds of an object
10/17/2012EP2510316A1 Sensor housing made of a metal material, in particular for an inductive proximity switch and method for the production thereof
10/17/2012EP2221194B1 Wheel bearing device and manufacturing method therefor
10/17/2012CN102728773A One-time cold-forging blocking forming method for inner star wheel
10/17/2012CN102728772A Method for forging large ship crank shaft
10/17/2012CN102728771A Method for forging nuclear island spindle
10/17/2012CN102728757A Hammer forging device for forming complicated long-axis forgings applied to radial forging machine
10/17/2012CN101773976B Precision-forging anti-oxidization heating protective producing process of straight bevel gears of differentials
10/11/2012WO2012137023A1 Insert
10/11/2012US20120258329 Rack bar and method for production thereof
10/11/2012US20120255175 Method for producing hollow engine valve
10/11/2012DE19832288B4 Verfahren zur Herstellung eines Verbindungselementes A process for producing a connecting element
10/10/2012EP2508274A1 Method and device for increasing the bearing area of a fine blanked workpiece with a tooth, a tooth section or the like
10/10/2012EP2506996A1 Method and device for producing a molded part provided with a through-hole
10/10/2012CN102172766B Forging process for large shaft parts
10/10/2012CN101797624B Method and device for producing tubular workpieces from a pre-perforated hollow block
10/04/2012US20120246936 Method for producing metallic-sodium-filled engine valve
10/03/2012EP2505280A1 Apparatus for manufacturing plate-shaped gear teeth member
10/03/2012EP2504117A1 Reinforcement-linking device and manufacturing method thereof
10/03/2012CN202461414U Transverse stabilizing rod hot forging and pressing flattening forming machine tool
10/03/2012CN102712032A Hollow crankshaft having an offset junction plane
10/03/2012CN102699263A Method for forging nuclear island main pipe
10/03/2012CN102699262A Material converging method for G2500 crankshaft in pre-forging die
10/03/2012CN102699261A Method for forging central hole of spline shaft forging
10/03/2012CN102699260A Tool of bearing sleeve forge piece with semispherical section
10/03/2012CN101267901B Manufacture of shaft-hub connection part
10/02/2012US8276275 Method for assembling an epicyclic gear train
10/02/2012US8276274 Method of assembling a marine outboard engine
09/2012
09/27/2012WO2012128278A1 Bearing device for wheel and method of manufacturing same
09/27/2012US20120241658 Back pressure regulating valve with valve cartridge
09/27/2012US20120240405 Manufacturing method for toothed part and manufacturing device for toothed part
09/26/2012EP2502687A1 Method for crimping a bearing ring on a rotating member
09/26/2012CN102695571A Method using powder metallurgy to manufacture a dog ring gear
09/26/2012CN102688976A Forging method of Grade R5 mooring chain accessory swivel shackle
09/26/2012CN102688975A Cutting-free gear manufacturing process
09/26/2012CN102688972A Special-purpose clamping mechanism for precision forging differential gear processing
09/26/2012CN102688966A Cold forging method and metal housing processing method
09/26/2012CN101294760B Heat exchanger with connector and method of manufacturing the connector
09/20/2012US20120235465 Method and System for Forming a Wheel Structure
09/19/2012CN102686763A Process for producing brake piston
09/19/2012CN102686331A Apparatus for manufacturing plate-shaped gear teeth member
09/19/2012CN102686330A Method for manufacturing hollow engine valve
09/19/2012CN102672095A Compound die of automatic nail making machine of peel type rivets
09/19/2012CN102672094A Method of manufacturing shaft member for wheel rolling bearing device
09/13/2012WO2012121246A1 Manufacturing method for wheel roller bearing device
09/13/2012WO2012121245A1 Shaft member for rolling bearing device for wheel
09/13/2012WO2012121244A1 Rolling bearing device for wheel
09/13/2012WO2012121243A1 Shaft member for wheel rolling bearing device
09/13/2012WO2012121242A1 Shaft member for wheel rolling bearing device
09/13/2012WO2012119878A1 Method for producing a bearing ring, in particular for a tapered roller bearing
09/13/2012WO2012119583A1 Method for producing a piston for an internal combustion engine
09/13/2012US20120228538 Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
09/13/2012US20120227459 Method of manufacturing shaft member for wheel rolling bearing device
09/12/2012EP2497584A1 Method for the manufacture of a wheel hub assembly with rolling bearings, and wheel hub assembly
09/12/2012EP2497583A1 Method of manufacturing a shaft member for a wheel hub assembly with rolling bearings
09/12/2012CN202427888U Multi-station bolt cold forging machine
09/12/2012CN102667077A An exhaust valve spindle for an internal combustion engine, and a method of manufacturing
09/12/2012CN102658350A Forging process for slurry pump air chamber shell
09/11/2012US8262492 Spacer nut manufacturing method
09/06/2012DE102011013143A1 Kolben für einen Verbrennungsmotor sowie Verfahren zu seiner Herstellung Piston for an internal combustion engine and method for its preparation
09/06/2012DE102011013141A1 Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor A method for producing a piston for an internal combustion engine
09/05/2012EP2494158A1 An exhaust valve spindle for an internal combustion engine, and a method of manufacturing
09/05/2012CN101972834B Device for quickly and efficiently forging tube blanks
09/05/2012CN101972832B Detachable die precision forging die of reverse gear shaft of automatic gearbox of sedan
09/05/2012CN101780515B Process for precisely forging triple gear of dual-drive axle
09/05/2012CN101767266B Manufacturing method of magnesium nut and magnesium nut component thereof
09/05/2012CN101596573B Method for manufacturing transition section of conical head of coke tower
08/2012
08/30/2012WO2012114910A1 Method for producing tooth profile component, device for producing tooth profile component, and tooth profile component
08/30/2012WO2012114908A1 Method for producing tooth profile component, device for producing tooth profile component, and tooth profile component
08/30/2012WO2012113463A1 Self-piercing clinch rivet
08/30/2012US20120216644 Toothed part manufacturing method, toothed part manufacturing device, and toothed part
08/30/2012US20120216643 Toothed part manufacturing method, toothed part manufacturing device, and toothed part
08/30/2012US20120216404 Manufacturing method of a valve
08/30/2012DE102010011711B4 Verfahren und Vorrichtung zur spanlosen Herstellung von Verbindungs-, Befestigungs- oder Verschlusselementen aus Metall mit Außengewinde Method and apparatus for non-cutting manufacture of fastening, securing or sealing elements made of metal with outer thread
08/29/2012CN202398774U Reducing device for large-specification bolt
08/29/2012CN102652042A Method for manufacturing valve umbrella portion of hollow engine valve, press device of valve umbrella portion of hollow engine valve, and hollow engine valve
08/29/2012CN101966554B Method for manufacturing intermediate formed body of driven gear of rear axle of small and medium-sized automobile
08/29/2012CN101947630B Controlled-forging controlled-cooling processing technology of bearing ring prepared by GCr15
08/29/2012CN101885033B Jacking and guiding device of forging product forming machine
08/23/2012US20120213453 Check valve, sealing bag, and production methods for both
08/23/2012US20120210765 Method for Manufacturing Mechanical Part Excellent in Rolling Fatigue Life
08/22/2012EP2489755A1 Process for producing brake piston
08/22/2012CN202387902U Local molding cold heading mould for bolt
08/22/2012CN102641980A Cold forming mould for connecting bolt of cylinder and cold forming processing method thereof
08/22/2012CN101844198B Production apparatus and production method for crankshaft
08/21/2012US8245402 Method for manufacturing a solid housing
08/21/2012US8245374 Roller burnishing machine for crankshafts
08/15/2012EP2485858A1 Sintered coupling ring
08/15/2012EP2344289B1 Method for producing a molded part provided with a through-hole and device for carrying out the method
08/15/2012CN202377465U Punching die sleeve for long nut
08/15/2012CN102639263A Method and device for producing a molded part provided with a through-hole
08/15/2012CN102632185A Magnesium alloy wheel forging forming method and die
08/15/2012CN102632184A Method for forging roller for crawler excavator
08/15/2012CN102632183A Production process of magnesium alloy medium-thick-wall tube with ultra-fine grain structure
08/15/2012CN102632182A Forging molding process for integral hollow nuclear power main pipe
08/09/2012US20120198906 Method for manufacturing cold-forged wing bolts
08/09/2012US20120198671 Machining device for machining crankshafts and a machining system having such a machining device
08/08/2012EP2484482A1 Intake valve of internal combustion engine
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