Patents for B21K 1 - Making machine elements (7,621)
06/2011
06/09/2011US20110131810 Process for manufacturing a bearing
06/09/2011DE19830817B4 Verfahren zum Umformen eines Werkstücks durch Drückwalzen A method of forming a workpiece by flow-forming
06/09/2011DE102009056917A1 Piston manufacturing method for internal combustion engine, involves machining surface of piston lower part after separating piston upper part from piston lower part and before welding piston upper part with piston lower part
06/08/2011EP2329899A1 Method for producing light alloy vehicle wheel
06/08/2011CN201855909U Female die for molding head part of external plum blossom flange type bolt
06/08/2011CN1724187B Method of pre-processing spray nozzle needle stand and fuel jet device
06/08/2011CN102085559A Method for producing light alloy vehicle wheel
06/08/2011CN101745785B Method for manufacturing neutron flux-measured sleeve crossed stiffened plate by forging
06/08/2011CN101579718B Nut shaping machine rod mechanism with double force
06/08/2011CN101520067B Cold-headed embedded nut and manufacturing method thereof
06/08/2011CN101362181B Clutch gear manufacturing apparatus and clutch gear manufacturing method
06/08/2011CN101198425B Method and device for producing internal tooth section and external tooth section on cylinder type hollow member with thin wall
06/07/2011US7954241 Self-lubricating bearing and its manufacturing process
06/03/2011WO2011065297A1 Apparatus for manufacturing plate-shaped gear teeth member
06/03/2011WO2011064466A1 Reinforcement-linking device and manufacturing method thereof
06/03/2011WO2011064098A1 Chipless produced bearing shell
06/03/2011WO2011063542A1 Method and device for producing a molded part provided with a through-hole
06/01/2011EP2327804A1 Exhaust poppet valve and solution treatment method of poppet valve
06/01/2011CN102084201A Heat exchanger, in particular heat exchanger of a motor vehicle, and method for producing a cooling pipe of a heat exchanger
06/01/2011CN102078912A Buffer devices for heavy crankshaft edge-cutting hydraulic machine
05/2011
05/24/2011US7946770 Hydrodynamic bearing device
05/24/2011US7946034 Method for manufacturing a tribological component
05/24/2011CA2427201C Method of manufacturing a blind threaded insert
05/19/2011WO2011058793A1 Seat faced poppet valve and method for producing same
05/19/2011WO2011057933A1 Self-piercing rivet
05/18/2011EP2322299A1 Enlargement processing method for workpiece
05/18/2011EP2322295A2 Metal manufacturing method, apparatus of the same and metal object
05/18/2011EP1177610B1 Method for producing a shaft and a device containing a shaft of this type
05/18/2011CN201832942U Rotary forging press flange plate forming die
05/18/2011CN102059315A Riser upper cover and manufacturing method thereof
05/18/2011CN101695739B Forging process of large tee and large skew tee
05/18/2011CN101506401B Powder forged member, powder mixture for powder forging, method for producing powder forged member, and fracture split type connecting rod using the same
05/18/2011CN101006189B Method of manufacturing a hardened forged steel component
05/17/2011US7941926 Apparatus for manufacturing hydro dynamic bearing device method
05/17/2011US7941922 Method of manufacturing a lightweight valve
05/12/2011WO2011054201A1 Upsetting press with two female dies and three punches and method for operating the same
05/12/2011DE102009044495B3 Producing bolt head formed on shaft of welding stud with a stud flange and its ignition tip, comprises ordering the welding studs over a disk overhanging in radial direction of stud flange, where the bolt head is formed with the flange
05/11/2011EP2171256B1 Injection valve, method for its production and device for carrying out the method
05/11/2011CN201823878U Mold of prismatic bolts
05/11/2011CN201823861U Forging die for hub bolt
05/11/2011CN102056688A Method of making a ring
05/10/2011CA2679751C Method of spinning multiple parts
05/05/2011WO2011052708A1 Method for producing near-net-shape material for engine piston
05/05/2011WO2011051496A1 Method for producing a hollow body
05/05/2011WO2011050815A1 An exhaust valve spindle for an internal combustion engine, and a method of manufacturing
05/05/2011WO2010108486A4 Stamping method and workpiece produced therewith
05/05/2011DE102010045025A1 Method for the production of an aluminum molded part, comprises heat-treating a semi-finished product and directly carrying out a deformation step for processing the semi-finished product after the heat treatment
05/05/2011DE102009046161A1 Verfahren zur Herstellung eines plattenartigen Elements aus Metall, insbesondere einer Stellplatte für Beschläge A method for producing a plate-like member made of metal, in particular an adjusting plate for fittings
05/04/2011EP1532373B1 Self-attaching female fastener and method of installation
05/04/2011CN201815624U Upsetting flange manufacturing device
05/04/2011CN201815620U Die for forging high-precision crank shaft
05/04/2011CN201815618U Precision forging die capable of forging tooth form of straight toothed spur gear
05/04/2011CN102039364A Shaping process of fan shaft
05/04/2011CN101774107B Method for forging Venturi tubes
05/04/2011CN101618498B Manufacturing process of adjusting nut
05/03/2011US7934316 Charging roller, process cartridge and image forming apparatus
04/2011
04/28/2011US20110097173 Functional element, component assembly comprising the functional element in combination with a sheet metal part, method for the manufacture of a component assembly and also method for the manufacture of the functional element
04/27/2011CN201807693U Forging die for crankshaft
04/27/2011CN102029351A Method for manufacturing wind power forging by using 20CrMnMo continuous casting blank
04/27/2011CN102029350A Progressive forging forming method for large cake forged pieces
04/27/2011CN102029349A Forging device for middle lug boss of large gear forging
04/27/2011CN102029348A Multi-way die forging process method and mould for 40Cr steel case type parts
04/27/2011CN102029347A Manufacturing method of gear shaft forge piece for offshore drilling platform
04/26/2011US7930825 Blowout resistant weld method for laser welds for press-fit parts
04/21/2011WO2011046196A1 Process for producing brake piston
04/21/2011US20110089360 Flow control valve and method for manufacturing the same
04/21/2011US20110089352 Overmolded or pressed-in sleeve for hydraulic routing of solenoid
04/20/2011EP2310164A1 Method for producing a bimetal valve
04/20/2011EP1844875B1 Method and device for upsetting cylindrical material
04/20/2011CN201799563U Support device for pressing large screws
04/20/2011CN201799562U Full-automatic forging bed of inflating valve body
04/20/2011CN201799555U Large screw forging die
04/20/2011CN102026825A Method for forming a wheel bearing device
04/20/2011CN102019534A Manufacturing method of valve part
04/20/2011CN102019344A Quadrangular rivet and manufacturing method thereof
04/20/2011CN101219457B Preparation of pre-coated aluminium alloy articles
04/14/2011WO2011041811A1 Sintered coupling ring
04/14/2011US20110083907 Polycrystalline diamond
04/14/2011CA2749363A1 Sintered coupling ring
04/13/2011EP2307156A1 Method of making a ring
04/13/2011CN201791890U Tooth profile die and gear fine forging die having same
04/13/2011CN201791887U Precise-forging upsetting and punching progressive die for disc type parts
04/13/2011CN102015151A Bush widening apparatus and process for forging a bush blank
04/13/2011CN102011852A Method for processing transmission gear ring
04/13/2011CN102009119A Vertical double-end face forging process of primary driving tooth blank
04/13/2011CN101262965B Process for producing molded article with undercut, forging apparatus therefor
04/12/2011US7921565 Working fluid injection apparatus, method of injecting working fluid, and method of manufacturing fluid dynamic pressure bearing
04/07/2011WO2011005722A3 Application of electric induction energy for manufacture of irregularly shaped shafts with cylindrical components including non-unitarily forged crankshafts and camshafts
04/05/2011US7918022 Method of producing a cooling channel piston for an internal combustion engine
03/2011
03/31/2011US20110076204 Pinch valve and method for manufacturing same
03/31/2011US20110076109 Blind Fasteners and Methods of Manufacture
03/31/2011US20110072666 Method of manufacturing rolling bearing device
03/31/2011DE102009019249B4 Verfahren zur Herstellung eines Profils in einer Wand eines Werkstücks A process for producing a profile in a wall of a workpiece
03/30/2011CN201776382U Matched die of fine riveting machine
03/30/2011CN101992256A Method for manufacturing a balancing shaft
03/24/2011US20110070052 Nut Assembly and Method for the Production the Same
03/24/2011US20110067766 Vacuum actuated fluid delivery
03/24/2011US20110067477 Steering rack manufacture
03/24/2011DE102009041087A1 Tool e.g. deforming tool, for producing beveloid-tooth work for conical front toothed wheel, has left tooth flank whose profile angle is differ from profile angle of right tooth flank of teeth that produce tooth work at workpiece
03/23/2011EP2297537A1 Heat exchanger, in particular heat exchanger of a motor vehicle, and method for producing a cooling pipe of a heat exchanger
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