| Patents for B21K 1 - Making machine elements (7,621) |
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| 06/07/2001 | DE10055434A1 Fuel injection valve manufacturing method for engine, involves inserting sliding portion of valve into valve slide hole of revolving superstructure and fixing after inserting and removing guide pin of larger diameter |
| 06/05/2001 | US6240827 Composite piston for reciprocating machine |
| 06/05/2001 | CA2034690C Elongated, lightweight rack and method for extruding same |
| 05/31/2001 | DE19956954C1 Separation tool for continuous separation of rotationally symmetrical workpiece has separation roller provided with cutting thread having different thread size in each successive section |
| 05/30/2001 | CN1296867A Cold squeeze technology for making regulating screw bolt with hot rolled circular steel without cutting |
| 05/30/2001 | CN1296866A Making method and improved structure of ball valve seat |
| 05/29/2001 | US6237389 Apparatus and method for forming screw-thread on a pipe |
| 05/26/2001 | CA2322904A1 Method of manufacturing preform for connecting rod |
| 05/24/2001 | US20010001367 Method for forming a workpiece by flow-forming |
| 05/22/2001 | US6234914 Punch for forming threaded fasteners with spiral drive |
| 05/22/2001 | US6234913 Method of manufacturing of fastening elements |
| 05/22/2001 | US6233999 Method for ironing spline teeth in pressed stepped sheetmetal and sheetmetal clutch drum formed by same |
| 05/17/2001 | US20010001165 Method of manufacturing a speed gear and an apparatus for manufacturing a speed gear |
| 05/15/2001 | US6230539 Ultra precision net forming process employing controlled plastic deformation of metals at elevated temperatures |
| 05/10/2001 | DE19951586A1 Toll for forging valves of internal combustion engines, with ceramic inserts of silicon nitride or zirconium oxide |
| 05/10/2001 | DE10042896A1 Toroidal ring formation involves compressing cylindrical material from base edge side and shaft core direction to plastically deform and reduce bottom diameter, such that ring is formed by punching |
| 05/09/2001 | EP1097012A1 Method for producing an inner profile or an outer profile by rotary kneading |
| 05/09/2001 | EP0988122B1 Multistage metal-forming machine tool |
| 05/08/2001 | US6227024 Flow forming method and device |
| 05/08/2001 | CA2103150C Precision forming apparatus, method and article |
| 05/02/2001 | EP1024915A4 Method of assembling fuel injector pump components |
| 05/02/2001 | CN1065369C Improved process for manufacturing alternator pole piece |
| 05/01/2001 | US6225591 Resistance welding electrode and process for making |
| 05/01/2001 | US6224490 Constant velocity joint and method of making an outer race therefor |
| 05/01/2001 | US6224310 Blind rivet and method of making same |
| 05/01/2001 | US6223576 Method of thickening peripheral portion of circular plate blank by holding blank in pressing contact with bottom surface of forming groove formed in roller die |
| 05/01/2001 | US6223574 Thin-walled ring-shaped member and method of manufacturing same |
| 05/01/2001 | CA2200674C Coated rivet and deformation thereof |
| 05/01/2001 | CA2134607C Rotary forging apparatus |
| 04/26/2001 | DE10049548A1 Electrical device for power-assisted steering has a motor for generating auxiliary torque to correspond to steering torque and a pinion gear and steering rack mechanism for transferring torque support to the steering rack |
| 04/24/2001 | US6221177 Providing aluminum-alloy article precursor; anodizing article precursor; applying curable organic coating material; heat-treating coated aluminum article precursor to its final heat-treated state |
| 04/24/2001 | US6220805 Slotted screw and method, and apparatus for forming a slot in a semi-product of a screw prior to thread formation |
| 04/24/2001 | US6220072 Forming press of crankshafts |
| 04/19/2001 | WO2001026840A1 Cold forging and method of manufacturing the cold forging |
| 04/18/2001 | EP1092610A2 Rack bar and production method for the same |
| 04/18/2001 | EP1091817A1 A tool ring and a nail machine comprising such tool ring |
| 04/12/2001 | DE10048163A1 Moulding device for fastening elements for moulding of fastening elements out of cylindrical work pieces has gripper or tool carried relative to other for reciprocating movement along axis between remote position and near position. |
| 04/11/2001 | EP1089838A1 Method for producing vehicle wheels |
| 04/11/2001 | EP1007235A4 Manufacture of grease fittings and blanks therefor |
| 04/11/2001 | CN1064284C Reducing-extrusion processing method and apparatus thereof |
| 04/10/2001 | US6213885 Castellated flange nut |
| 04/10/2001 | US6213648 Sheet metal cage for roller bearings and method for producing sheet metal cage |
| 04/05/2001 | WO2001023118A1 Method of processing connecting ends of deformed steel bar used for reinforcing concrete, and deformed steel bar processed by this method |
| 04/05/2001 | DE19947311A1 Hollow screw or bolt for releasably fastening components together has head whose internal profile allows tool to be inserted to unscrew it and is produced from semi-finished sheet metal product or plastic |
| 04/03/2001 | US6209191 Method for manufacturing pulley integrated type rotor |
| 03/28/2001 | EP1087149A2 A bolt and a manufacturing method thereof |
| 03/28/2001 | EP1086864A2 Method for manufacturing a seat belt anchorage plate |
| 03/28/2001 | EP1086316A1 Method of forming a tubular member |
| 03/28/2001 | CN1063698C Screw special for thin plate welding and welding process thereof |
| 03/27/2001 | US6205836 Method for manufacturing piston by forging and forging die |
| 03/27/2001 | US6205828 Forging die, and method and apparatus for controlling the same |
| 03/20/2001 | US6202283 Method of manufacturing a shaft with surfaces thereof modified |
| 03/15/2001 | DE19581199C2 Belt fixture for seat belt assembly, and process for its prodn |
| 03/15/2001 | DE10031878A1 Internally cogged element has first cylinder section and second cylinder section with larger diameter and with internal cogged areas protruding from inner circumferential surface |
| 03/14/2001 | CN1063112C Gear rolling cold-forging forming machine and feeding equipment thereof |
| 03/13/2001 | US6199275 Method for forming crank shaft and method for producing crank shaft |
| 03/06/2001 | US6196946 Power roller bearing of toroidal type continuously variable transmission and method of manufacturing power roller bearing of toroidal type continuously variable transmission |
| 03/01/2001 | WO2001014081A1 Method for extracting a tool from a hollow object and tool for machining a hollow object |
| 03/01/2001 | DE19943805A1 Verfahren zum Entformen eines Stempels aus einem hohlen Gegenstand und Werkzeug zum Bearbeiten von Rillen an der Innenmantelfläche eines solchen hohlen Gegenstands A method for demolding a punch of a hollow article and tool for machining of grooves on the inner lateral surface of such a hollow object |
| 02/28/2001 | EP0984837B1 Method and device for producing a one-piece vehicle wheel |
| 02/28/2001 | CN1285249A Method for forming fan-shape polygon frame forge piece |
| 02/22/2001 | WO2001012957A1 Rocker arm and method of manufacturing rocker arm body |
| 02/22/2001 | WO2001012367A2 Compacted-powder opposed twin-helical gears and method |
| 02/22/2001 | WO2001012359A1 Nitinol ball bearing element and process for making |
| 02/22/2001 | CA2391861A1 Compacted-powder opposed twin-helical gears and method |
| 02/22/2001 | CA2381785A1 Nitinol ball bearing element and process for making |
| 02/20/2001 | US6189362 Forging die apparatus |
| 02/15/2001 | DE10020762A1 Fabrication process for hollow shafts for motor vehicle drive trains uses solid blank to cold-form end and neck sections with serration toothings, and apply low-friction coating |
| 02/13/2001 | US6185821 Practical forged flange-type ball valve fabrication method |
| 02/08/2001 | WO2001008838A1 Method for producing a coupling body by powder-metallurgy |
| 02/08/2001 | DE19929639A1 Shaft for synchronised transmission systems has teeth at its ends to hold hub in place which are produced by mechanical shaping and have surface with inclination of at least 35 degrees to shaft axis |
| 02/07/2001 | CN1283255A Spiral drive system for threaded fasteners |
| 02/07/2001 | CN1061572C Extruding and forging press for producing raised decoration unit in figured metal pipe |
| 01/31/2001 | EP1072339A2 A method of moulding a blank into a moulded component |
| 01/31/2001 | CN2416983Y Cardan cross axle having arc shaped intermediate blank |
| 01/30/2001 | US6179718 Hole forming apparatus |
| 01/30/2001 | US6178801 Forging device for crown-shaped helical gear |
| 01/30/2001 | US6178638 Fabrication method for a flange-type ball valve |
| 01/25/2001 | DE10025060A1 Method for fabrication of screws etc. from wire blanks uses chucks to act as dies and move blanks between individual forming tools |
| 01/25/2001 | DE10021189A1 Manufacturing method for esp. internal geared wheels uses modified extrusion process with active medium support |
| 01/24/2001 | EP1070896A2 Method for making a press-fitting element |
| 01/24/2001 | CN1280890A Technology for manufacturing non-turble ball spigot without welding |
| 01/18/2001 | DE19933468A1 Gear selector cog, without separate discrete sector for secondary teeth, is for use in vehicle gearbox therefore cheap and easy to manufacture |
| 01/17/2001 | EP1068912A2 Hypoid ring gear for differentials and method of producing the same |
| 01/17/2001 | CN1060694C Forging process for inner and outer rings of conical bearings |
| 01/11/2001 | WO2000063568A3 Method and device for completing outer joint elements that are formed without cutting |
| 01/10/2001 | EP1066473A1 Improved self-tapping thread fastener and a blank therefor |
| 01/10/2001 | CN1060415C Technological process of manufacturing steel flange blank |
| 01/03/2001 | EP1065131A2 Rack and pinion steering apparatus and method for manufacturing a helical pinion |
| 01/03/2001 | EP1065016A1 Method of manufacturing a hollow shaft having a flange at one end thereof |
| 12/28/2000 | DE19928703A1 Double headed metal, preferably steel, bolt; has polygonal head at each end, and possibly polygonal collar, formed using cold former, with shape of heads aligned in same way around bolt axis |
| 12/28/2000 | DE10028996A1 Adjustable assembly for fitting seats in vehicles includes slide track as profiled rod section with two parallel protruding rails running inclined to edge of fastening plate to allow height and horizontal adjustment simultaneously |
| 12/27/2000 | EP1063033A1 Method for the production of a metallic workpiece, like an element of a vehicle wheel, and corresponding wheel |
| 12/26/2000 | US6165400 Compacted-powder opposed twin-helical gears and method |
| 12/21/2000 | WO2000076689A1 Method and device for machining a shaft-hub joint with tight-fitting toothing |
| 12/20/2000 | EP1060812A2 Wire for helical coil insert |
| 12/20/2000 | EP1060807A1 Helical gear with shaft, extrusion forming method for helical tooth profile and extrusion forming die for helical tooth profile |
| 12/19/2000 | US6161415 Cold deep hole forming device |
| 12/19/2000 | US6161285 Method for manufacturing a poppet valve from a γ-TiAl base alloy |
| 12/14/2000 | WO2000075520A1 Universal joint device and method of manufacturing the device |