Patents for B21K 1 - Making machine elements (7,621)
07/2000
07/11/2000US6085418 Apparatus for and method of sizing helical gears
07/11/2000US6085405 Method of fabricating a handlebar stem for a bicycle
07/06/2000WO2000038936A1 Full face vehicle wheel and method for producing same
07/05/2000EP1009558A4 Joining metal components
07/05/2000CN2385818Y Connecting bar local continuous forming mould
07/05/2000CN1259065A Multistage metal-forming machine tool
07/05/2000CN1258575A Forming process for pawl pole of automobile generator
07/04/2000US6082811 Reinforcement for vehicle hollow structural member, having decreasing-thickness end portions
07/04/2000CA2021628C Method of manufacturing dual alloy turbine disks
06/2000
06/29/2000WO2000037195A1 A nail machine, and a tool ring and fitting for securing holding jaws for such machine
06/29/2000CA2350762A1 A nail machine, and a tool ring and fitting for securing holding jaws for such machine
06/28/2000EP1013357A1 Full enclosed die forging method, full enclosed die forging apparatus, and product of forging
06/28/2000EP1013356A2 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
06/21/2000EP1009558A1 Joining metal components
06/20/2000US6076387 Process for rolling bevel gears on an axial stamping rolling machine and tooling for its implementation
06/14/2000EP1008404A1 Method for ironing spline teeth in pressed stepped sheetmetal and sheetmetal clutch drum formed by same
06/14/2000EP1007243A1 Means to manufacture steering rack bars
06/14/2000EP1007242A4 Method of manufacturing a component
06/14/2000EP1007242A1 Method of manufacturing a component
06/14/2000EP1007235A1 Manufacture of grease fittings and blanks therefor
06/08/2000DE19925272A1 Manufacturing process for forging flanged ball valve seats uses blanks with friction welding faces of water inlet seat and ball valve seat welded together by friction welding with welding slag in centre hole cleared by ram
06/07/2000EP1005932A2 Method and device for plastically forming a hollow cylinder with internal gear teeth
06/06/2000US6070324 Method of manufacturing an aluminum burner cap
06/06/2000CA2121923C Gear making process
05/2000
05/31/2000EP1003619A1 Method for producing a gear wheel, device for carrying out the method, and wheel produced by this method
05/31/2000CN1254632A Technology for making semi-finished regulating arm and ball-upsetting equipment
05/30/2000US6067838 Method of forging rod-shaped work
05/25/2000DE19955111A1 Herstellverfahren für Kugel eines Kugelventils Manufacturing processes for ball of a ball valve
05/24/2000EP1002598A2 Device for cold-forming deep holes
05/24/2000CN1253868A Production method of ball valve
05/24/2000CN1052670C Device for manufacturing automobile steering rack
05/23/2000US6065322 Method and device for forming blanks for bearing rings
05/23/2000CA2199201C Tee nut and method of manufacturing the same
05/23/2000CA2179225C Method of and apparatus for forming a disc-shaped blank
05/18/2000WO2000027559A1 Rivets and rivet manufacturing methods
05/18/2000DE19852329A1 External tooth making rolling tool for gear wheels, with head surfaces angled to working direction
05/17/2000EP1000686A2 Apparatus for and method of manufacturing spindle components
05/17/2000EP1000275A1 One-piece flywheel having outer ring gear portion, and process of manufacturing the same
05/17/2000CN1253247A Component for connecting with crank shaft and its manufacturing method
05/11/2000DE19952143A1 One-piece component forming primary flywheel pressing for fixing on crankshaft of internal combustion engine
05/10/2000CN1052177C Method for making mandrel for blind rivets
05/04/2000DE19536027C2 Planetengetriebe-Geschwindigkeitsreduzierer und Herstellungsverfahren für einen Planetengetriebe-Haltestift für dasselbe Planetary gear speed reducer and manufacturing method of a planetary gear retaining pin for the same
05/03/2000EP0997614A2 Process for forging titanium-based material, process for producing engine valve, and engine valve
05/03/2000CN1252019A Jointing metal components
05/02/2000US6055838 Method of forming outer ring of constant velocity joint
04/2000
04/25/2000US6053023 Method of cold forging a workpiece having a non-circular opening
04/20/2000WO2000021699A1 Tool for producing a gear part having external toothing
04/18/2000US6049982 Sequential process including material selection, milling, die core disposing, diameter reducing and tapering of pipe head, first stage forming, tapering of branch pipes, second stage forming and bending forging
04/13/2000WO2000020145A1 A method of manufacturing a fluid control valve and a fluid control valve
04/12/2000EP0991486A1 Method for producing a rack
04/12/2000CN2373205Y Tool for extrusion bolt head low fillet
04/11/2000US6047471 Method of making a resistance welding electrode
04/06/2000WO2000019114A1 Blind rivet and method of making the same
04/05/2000EP0990710A1 Magnesium alloy forging material and forged member, and method for manufacturing the forged member
04/05/2000CN1249355A Magnesium alloy forged material and member, and method for mfg. forged member
04/04/2000US6044684 Forging apparatus for inner race of constant velocity universal joint
04/04/2000US6044557 Method of making stamped driver inflator base
04/04/2000US6044543 Method of manufacturing a joint housing
03/2000
03/30/2000WO2000016930A1 Method of manufacturing latch plate
03/29/2000EP0989316A1 Torque transmitting member in automotive transmission, method for forming spline teeth, and apparatus for forming the same
03/29/2000EP0988122A1 Multistage metal-forming machine tool
03/29/2000CN1249005A Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing
03/28/2000US6041640 Spiral and hypoid tooth member and method and device for forming the same
03/28/2000US6041490 Method for manufacturing pulley integrated rotor
03/21/2000US6039475 Retainer for roller bearing and method for manufacturing the same
03/21/2000US6038771 Method of manufacturing tie rod bar for steering linkage of motor vehicle
03/16/2000WO2000014419A1 Cylindrical roller for tripod constant velocity joint and method of manufacturing the roller
03/16/2000DE19858324C1 Method of production of motor vehicle drive homokinetic coupling outer shell involves reshaping outer sleeve and separating base section
03/15/2000EP0984837A1 Method and device for producing a one-piece vehicle wheel
03/15/2000EP0738191B1 Apparatus for manufacturing steering rack bars
03/14/2000US6036439 Front cover of a torque convertor having a boss formed on the front cover and a method for forming the boss on the front cover
03/14/2000US6036411 Method of producing an article
03/14/2000US6035688 Forging die apparatus
03/09/2000WO2000012245A1 Method for producing a gear rack, and a stamping device for carrying out the method
03/07/2000US6033001 Wheel for rolling stock and manufacturing method thereof
03/07/2000US6032570 Composite piston for machine
03/02/2000DE19839428A1 Verfahren zur Herstellung einer Zahnstange und Prägevorrichtung zum Durchführen des Verfahrens A method of manufacturing a rack and embossing apparatus for carrying out the method
03/01/2000EP0982008A2 Orthodontic Band
02/2000
02/23/2000EP0927086B1 Method for manufacturing outer parts of constant velocity joints
02/23/2000CN1245548A Blind rivet and method of making same
02/23/2000CN1049614C Apparatus for manufacturing automotive steering rack
02/22/2000US6026666 Method for manufacturing internally geared parts
02/22/2000US6026572 Manufacture of a jewelry ring having inner lips at edges thereof and being elongated and shaped by a roller assembly to strengthen the same
02/17/2000DE19835478A1 Fabrication method for seamless tires for railways uses forging/pressing method to reduce height of pre-formed steel block, and upsetting method to form central hole
02/16/2000CN1049393C One-piece steering knuckle assembly
02/09/2000EP0828863A4 Preparation of pre-coated aluminum alloy articles
02/03/2000WO2000005008A1 Die forging method
02/03/2000DE19834133C1 Verfahren zur Herstellung von Hohlwellen A process for producing hollow shafts
02/03/2000CA2338376A1 Die forging method
02/02/2000EP0976467A1 Method and intermediate product for producing hollow shafts
02/02/2000CN2361408Y Multiple thread worm roller device
02/01/2000US6019517 Preformed pieces for outer and inner races of bearings
02/01/2000US6018977 Method of forming a cylindrical boss and a die therefor
01/2000
01/27/2000DE19832503A1 Manufacturing rotation symmetrical molded article with undercuts, slots, cavities or threading on inside, by placing removable splay sleeve inside article and then drawing it inside mold
01/26/2000EP0883770A4 Mechanical joint
01/26/2000EP0858373B1 Apparatus and method for forging a pinion gear with a near net shape
01/26/2000CN2360190Y Multistation cold headers shaping mould core for bicycle front and rear axle bumper and pedal bumper
01/25/2000US6017274 Method of forming a fastener
01/20/2000WO2000002682A1 Metallic shaft material diameter increasing device
01/20/2000DE19833769A1 Fabrication method for pressable metal fitting for sealed connection to pipe
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