| Patents for B21H 1 - Making articles shaped as bodies of revolution (2,244) |
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| 12/21/1999 | CA2102336C Process of manufacturing one-piece forged wheels |
| 12/09/1999 | DE19924062A1 Production system for vehicle wheels with steel rims |
| 11/30/1999 | US5992597 Multiple disk clutch and method and apparatus for forming clutch drum |
| 11/23/1999 | US5987952 Method for making a hub/pulley with a radially inward annular collar |
| 11/09/1999 | US5979205 Ring manufacturing method and ring manufacturing apparatus |
| 11/09/1999 | US5979203 Apparatus for spin-forming a circular body from a flat blank metal workpiece |
| 11/04/1999 | DE19918866A1 Fabrication method for multi-grooved V-belt pulley |
| 11/04/1999 | DE19818933A1 Cross rolling machine with two parallel rolls |
| 10/26/1999 | US5972418 Method and apparatus for the manufacture of a workpiece having a rotation-symmetrically hardened surface area |
| 10/21/1999 | WO1999053213A1 Cold forming aluminum metal matrix rotors |
| 10/07/1999 | DE19913090A1 Multistage belt pulley production |
| 10/06/1999 | EP0947258A2 Round die type form rolling apparatus |
| 10/05/1999 | US5960661 Apparatus for working a workpiece |
| 09/30/1999 | DE19913091A1 Multistage belt pulley having less risk of damage to groove-forming roll |
| 09/28/1999 | US5957777 Method of manufacturing fasteners |
| 09/23/1999 | WO1999047291A1 Method of manufacturing sheet metal product having groove in inner circumferential end surface thereof |
| 09/23/1999 | WO1999047289A1 Method of manufacturing sheet metal product having cylindrical portion at inner circumferential side thereof |
| 09/23/1999 | DE19846331A1 Manufacturing method for sheet metal circular component used for e.g. pulley |
| 09/23/1999 | DE19750686C1 Verfahren zum Herstellen einer Zylinderlaufbuchse A method of manufacturing a cylinder liner |
| 09/16/1999 | DE19810851A1 Ring rolling device for making rings with tubular attachment, e.g. pre-welding flange for pipe connection |
| 09/14/1999 | US5951422 Hub and pulley with radially inward annular collar |
| 09/07/1999 | US5947853 Spun pulley with thick hub |
| 09/07/1999 | US5946959 Process for producing annular workpieces from metal with a profiled cross section and a rolling facility for carrying out the method |
| 09/01/1999 | EP0938391A1 Method and machine for making a finned body |
| 09/01/1999 | CN2335723Y Automatic roll machine for rear sprocket of bicycle |
| 08/31/1999 | US5945050 Method of fabricating a sintered oilless bearing |
| 08/26/1999 | DE19807160A1 Method for producing cage for taper bearings |
| 08/25/1999 | CN2334518Y Machine for shaping vehicle wheel rim |
| 08/24/1999 | US5941113 Method of forming a cylindrical portion of a cylindrical member made of a metal sheet |
| 08/11/1999 | EP0934781A2 Method for manufacturing a cylinder liner |
| 08/11/1999 | CN2332509Y Flange cold rolling shaping appts. |
| 08/03/1999 | US5933699 Hot-rolling of a hot isostatically pressed preform followed by cold ring-rolling, welding, and chemical removal of sacrificial materials used to maintain the cooling channel locations during shaping |
| 07/29/1999 | DE19802565A1 Deforming device for bore pressing |
| 07/27/1999 | US5927121 Method for the manufacture of a gear part |
| 07/22/1999 | WO1999036206A1 Method and device for producing hollow bodies by means of cross-rolling |
| 07/08/1999 | WO1999034023A1 Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 06/30/1999 | EP0926361A1 Pin, pin and washer fastener, washer for the fastener and pin-making method |
| 06/30/1999 | EP0925130A1 Mill for producing axially symmetric parts |
| 06/16/1999 | EP0921897A1 Method of forming toothed wheels and product formed thereby |
| 06/16/1999 | EP0921892A1 Linear friction welding process for making wheel rims |
| 06/16/1999 | EP0921879A1 Process and device for manufacturing a gear part with outer teeth |
| 06/10/1999 | WO1999028070A1 Point contact densification of sintered metal powder |
| 05/26/1999 | EP0917917A1 Method and device for cold forming of hollow members |
| 05/20/1999 | DE19741109A1 Round stock post-machining by roller tools |
| 05/18/1999 | US5904060 Sheet metal member having a peripheral wall and method of thickening the peripheral wall thereof |
| 05/18/1999 | US5903974 Method of and apparatus for producing hollow ring groove insert for engine piston |
| 05/06/1999 | EP0912270A1 Method for producing axially symmetric parts and the article |
| 04/29/1999 | WO1999020416A1 Method of manufacturing a shaft having a fluid passage |
| 04/29/1999 | WO1999020415A1 Roll bending machine for forming a ring-shaped part |
| 04/21/1999 | EP0909339A2 Method for processing billets from multiphase alloys and the article |
| 04/01/1999 | DE19743055A1 Ring rolling machine for producing asymmetric rings |
| 04/01/1999 | DE19742737A1 Multistage ring rolling machine for work pieces |
| 03/31/1999 | EP0904208A1 Vehicle wheel |
| 03/16/1999 | US5882123 Roll-formed bearing race and process for producing the same |
| 03/09/1999 | US5878494 Method for manufacturing a machine bearing |
| 03/09/1999 | US5878493 Method of forming toothed wheels |
| 02/17/1999 | EP0896843A1 Methods for manufacturing a pivot and a jack; a pivot and a jack |
| 02/17/1999 | EP0800425B1 Method of manufacturing internally geared parts |
| 02/09/1999 | US5868050 Process and device for the continuous, chipless separation of individual rings from tubular workpieces |
| 02/03/1999 | EP0764063B1 Method of producing a seamless hot-finished tube |
| 01/28/1999 | WO1999003617A1 Mill for producing axially symmetric parts |
| 01/26/1999 | US5862696 Method and apparatus for the manufacture of a poly-V-pulley |
| 01/07/1999 | EP0888837A2 Method of manufacturing fastening elements |
| 01/07/1999 | DE19829050A1 Manufacturing ring-shaped metallic parts with flat sections from round rod |
| 01/07/1999 | DE19754045A1 Self-lubricating sinter bearing manufacture |
| 12/30/1998 | EP0828572B1 Process for producing annular work pieces from metal with a profiled cross-section and a rolling facility for carrying out the method |
| 12/30/1998 | CN1203132A Making device and method for sintering oil-containing bearing |
| 12/29/1998 | US5852873 Method of manufacture of a rotationally symmetrical part |
| 12/23/1998 | EP0885078A1 Method for manufacturing a formed piece of metal |
| 12/10/1998 | WO1998055248A1 Roll-formed bearing race and process for producing the same |
| 12/09/1998 | CN1201411A Method for mfg. of metal formed piece |
| 12/09/1998 | CN1041133C Aluminium pipe production process, electrophotographic photosensitive member produced by said process |
| 12/08/1998 | US5845400 Method of manufacturing a one end flange-less wheel rim |
| 12/03/1998 | WO1998053937A1 Method and device for producing a one-piece vehicle wheel |
| 12/03/1998 | WO1998053934A1 Flowturning device and method for producing internal geared wheels with two sets of inner toothing |
| 12/03/1998 | DE19823460A1 Multiple disc clutch for automotive vehicles |
| 12/03/1998 | DE19723073A1 Sheetmetal disc conversion for e.g. pulley service |
| 12/03/1998 | DE19722359A1 Drückwalzvorrichtung und Verfahren zur Herstellung von Hohlrädern mit zwei Innenverzahnungen Flow-forming device and procedure for the production of hollow wheels with internal toothings two |
| 12/03/1998 | CA2290448A1 Method and device for producing a one-piece vehicle wheel |
| 11/17/1998 | US5836431 Transmission clutch housing formed from a single piece of metal and method for making the same |
| 11/11/1998 | CN1198693A Method of molding cylindrical portion of cylindrical material of sheet metal |
| 11/11/1998 | CN1198692A Method of manufacturing pulley of sheet metal for V-belts |
| 11/11/1998 | CN1198691A Method of molding cylindrical portion of central bore-carrying sheet metal |
| 11/10/1998 | US5832608 Method for the manufacture of a rotationally symmetrical part |
| 11/03/1998 | US5829292 Rolling annular workpieces |
| 11/03/1998 | US5829291 Apparatus and process for forming metal member including bases portion and cylindrical portion formed on outer surface of the base portion such that the cylindrical portion is integral with the base portion |
| 10/29/1998 | WO1998048201A1 Sprocket and method of manufacturing same |
| 10/15/1998 | DE19714753A1 Shaping closed container base |
| 10/14/1998 | CN1196007A Shaped article of sheet metal having peripheral wall and method of increasing peripheral wall thickness |
| 10/01/1998 | DE19712939A1 Non-chipping production of metal ring for use in e.g. torsional vibration dampers |
| 09/24/1998 | DE19814854A1 Drive device for shaping machine |
| 09/22/1998 | US5809649 Method for the manufacture of a machine part having external toothing |
| 08/27/1998 | DE19708473A1 Device for non=cutting separation of individual rings from tubular workpiece |
| 08/26/1998 | EP0860219A1 An apparatus for working a workpiece |
| 08/20/1998 | CA2229824A1 An apparatus for working a workpiece |
| 08/18/1998 | US5794340 Method for the manufacture of a vehicle wheel |
| 08/12/1998 | EP0857527A2 A process, machine and rolling apparatus for producing axially symmetric members, in particular pulleys or wheels formed from a disk |
| 07/30/1998 | WO1998032556A1 Method for producing rings by combined chip-removal and forming, and corresponding machine |
| 07/21/1998 | US5782122 Spinning roller for splitting a rotationally symmetrical workpiece |
| 07/16/1998 | DE19801491A1 Production of hollow workpieces by cross-rolling |