| Patents for B21H 1 - Making articles shaped as bodies of revolution (2,244) |
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| 07/15/1998 | EP0852525A1 Method of producing large annular workpieces |
| 07/09/1998 | DE19700384A1 Method for manufacturing round blanks for extrusion pressing |
| 07/07/1998 | US5774986 Method and apparatus for cold-forming of toothed wheels from sheet metal |
| 07/01/1998 | EP0851151A1 Pulley and manufacturing method of the same |
| 06/30/1998 | US5772288 Vehicle wheel |
| 06/26/1998 | CA2225772A1 Pulley and manufacturing method of the same |
| 06/17/1998 | CN1185125A Process and apparatus for mfg. cooking vessel by roll forming |
| 06/16/1998 | US5765419 Method and apparatus for a rolling of hollow articles |
| 06/10/1998 | EP0757602B1 Process and device for the continuous, chipless separation of individual rings from tubular workpieces |
| 06/03/1998 | CN1183325A Splay foot shaping method for rail bar of door or window, and its structure |
| 05/22/1998 | WO1998020990A1 Method and machine for making a finned body |
| 05/13/1998 | CN1181427A Production method of spinning ring for ring spinning machine |
| 05/07/1998 | WO1998018583A1 Method of producing gear from sheet metal |
| 05/06/1998 | EP0839936A1 Production method of a spinning ring for a ring spinning machine |
| 04/29/1998 | CN1180000A Steel ball bloom continuous rolling mill |
| 04/22/1998 | EP0836954A2 Wheel for rolling stock and manufacturing method thereof |
| 04/21/1998 | US5740609 Method of making one-piece vehicle wheels and the like |
| 04/14/1998 | US5737955 Method for inclearing thickness of outer peripheral portion of disc, and method for molding disc member having transmitting portion in outer periphery thereof |
| 03/31/1998 | US5732581 Method for producing a sheet metal poly-V groove pulley and a sheet metal poly-V groove pulley |
| 03/26/1998 | DE19652836C1 Producing workpiece with rotationally symmetric hardened surface region |
| 03/18/1998 | EP0828572A1 Process for producing annular work pieces from metal with a profiled cross-section and a rolling facility for carrying out the method |
| 03/12/1998 | DE19711697A1 Forming machine with frame headstock and workholding tailstock |
| 03/12/1998 | DE19635152A1 Verfahren und Vorrichtung zur Herstellung eines außen verzahnten Getriebeteiles Method and device for producing an externally toothed gearing part |
| 03/05/1998 | WO1998008646A1 Method of forming toothed wheels and product formed thereby |
| 03/05/1998 | DE19634927A1 Method for synchronously expanding a pair of annular solid blanks |
| 03/04/1998 | EP0826442A2 Vehicle wheel |
| 03/03/1998 | US5722138 Apparatus for manufacturing toothed gears |
| 02/25/1998 | EP0824993A1 Method for manufacturing a steel railroad wheel with hardened running surface |
| 02/19/1998 | WO1998006532A1 Linear friction welding process for making wheel rims |
| 02/19/1998 | WO1998006521A1 Process and device for manufacturing a gear part with outer teeth |
| 02/19/1998 | WO1997048831A3 Method for processing billets from multiphase alloys and the article |
| 02/19/1998 | CA2263408A1 Process and device for manufacturing a gear part with outer teeth |
| 02/18/1998 | EP0824049A1 Spun-rolled pulley with thick hub and method of manufacturing thereof |
| 02/17/1998 | US5718140 Method for manufacturing a rotationally symmetrical work-piece of steel |
| 02/12/1998 | WO1998005448A1 Method of manufacturing pulley of sheet metal for v-belts |
| 02/12/1998 | WO1998005447A1 Method of molding cylindrical portion of cylindrical material of sheet metal |
| 02/12/1998 | WO1998005446A1 Method of molding cylindrical portion of central bore-carrying sheet metal |
| 02/05/1998 | DE19725453A1 Method for forming hollow shaft |
| 02/04/1998 | EP0821626A1 Process and apparatus for the manufacture of a cooking vessel by roll forming |
| 01/29/1998 | WO1998003281A1 Process for spin forming a vehicle wheel |
| 01/29/1998 | DE19631534A1 System for continuous, non-chipping cutting of tubular workpieces |
| 01/29/1998 | DE19629996A1 Cold forming method for enlarging annular rotary damper blank |
| 01/27/1998 | US5711174 Roll forming method and device |
| 01/15/1998 | WO1998001246A1 Shaped article of sheet metal having peripheral wall and method of increasing peripheral wall thickness |
| 01/13/1998 | US5707726 Aluminum pipe production process, electrophotographic photosensitive member produced by the production process, and electrophotographic apparatus having the electrophotographic photosensitive member |
| 01/07/1998 | EP0816010A2 Method of making double-walled turbine components from pre-consolidated assemblies |
| 01/07/1998 | EP0815983A1 Hub, pulley and method |
| 12/24/1997 | WO1997048831A2 Method for processing billets from multiphase alloys and the article |
| 12/24/1997 | WO1997048509A1 Method for producing axially symmetric parts and the article |
| 12/23/1997 | US5699689 Method of and apparatus for forming a disc-shaped blank |
| 12/18/1997 | WO1997047482A1 Vehicle wheel |
| 12/17/1997 | EP0812636A1 Method and device for producing rotationally symmetrical workpieces, in particular vehicle wheels |
| 12/10/1997 | CN1167019A Wedge transversal rolling technology for pipe-shape piece precision diameter shrinkage |
| 11/26/1997 | EP0808679A1 Rolling annular workpieces |
| 11/26/1997 | EP0808678A1 Method and apparatus for making a poly-v-pulley |
| 11/20/1997 | DE19723557A1 Production of rotationally symmetric component |
| 11/20/1997 | DE19719312A1 Method for production of small metal balls |
| 11/04/1997 | US5682677 Linear friction welding process for making wheel rims |
| 10/23/1997 | WO1997038821A1 Working machine equipped with mechanism for inclining machining means |
| 10/23/1997 | DE19615675A1 Procedure for manufacture of aircraft wheel |
| 10/23/1997 | DE19614993A1 Procedure for manufacture of axially symmetrical component, especially aircraft wheel |
| 10/15/1997 | EP0800425A1 Method of manufacturing internally geared parts |
| 10/01/1997 | CN1161077A Abrasion resistant ring for a piston for an engine and method and device for producing the same |
| 09/04/1997 | DE19708027A1 Method of manufacturing metallic gear disc |
| 08/28/1997 | DE19607310A1 Inner bearing forming method for bicycle wheel's crank |
| 08/27/1997 | EP0791738A1 Abrasion resistant ring for a piston for an engine and method and device for producing the same |
| 08/14/1997 | DE19701565A1 Procedure for manufacturing gear component |
| 07/30/1997 | EP0725693B1 Method for the non-cutting production of a transmission component hub |
| 07/24/1997 | DE4294681C2 Method for forming boss made of metal |
| 07/03/1997 | WO1997023313A1 Mill for transverse-wedge rolling |
| 07/03/1997 | DE19703947A1 Method for manufacturing rotationally symmetric items |
| 05/28/1997 | CN1150767A Method of producing seamless hot-finished tube |
| 05/15/1997 | DE19629738A1 Procedure for manufacture of rotationally symmetrical body with hub |
| 05/15/1997 | DE19541955A1 Rolling device, with improved rolling efficiency |
| 04/30/1997 | DE19541135C1 Continuous chip-free separation of rotationally symmetrical elongated metal workpieces |
| 04/24/1997 | DE19539082A1 Tool carrier for round jaw rolling tools |
| 04/15/1997 | US5619879 Method for the non-cutting production of a hub of a transmission component possessing the hub |
| 04/10/1997 | WO1997012710A1 Method of producing large annular workpieces |
| 04/10/1997 | DE19536053A1 Forming end stop on end of cylindrical housing |
| 04/09/1997 | CN1147221A Process and device for continuous, chipless separation of individual rings from tubular workpieces |
| 04/03/1997 | DE19536507A1 Verfahren zum Herstellen großer ringförmiger Werkstücke A method for producing large annular workpieces |
| 04/02/1997 | EP0684883B1 Process for manufacturing a light metal wheel in a single piece from a wrought aluminium material |
| 04/02/1997 | CN1146381A Symmetrical shouldered-shaft plate-pressing rolling plastic precision moulding tech. and die |
| 03/26/1997 | EP0764482A1 Method for increasing thickness of outer peripheral portion of disc, and method for molding disc member having transmitting portion in outer periphery thereof |
| 03/26/1997 | EP0764063A1 Method of producing a seamless hot-finished tube |
| 03/13/1997 | WO1997009136A1 Method for manufacturing a formed piece of metal |
| 03/13/1997 | CA2231126A1 Method for manufacturing a formed piece of metal |
| 03/05/1997 | CN1144497A Metal sheet having annular peripheral wall and method of thickening annular peripheral wall |
| 03/05/1997 | CN1144496A Method of production of poly-V groove pulley made of sheet metal, and poly-V groove pulley made of sheet metal |
| 02/27/1997 | WO1997007330A1 Abrasion resistant ring for a piston for an engine and method and device for producing the same |
| 02/26/1997 | CN1034109C Manufacture method of integral moulded splined hub |
| 02/26/1997 | CN1034108C Manufacture method of integral moulded splined hub |
| 02/25/1997 | US5605068 Apparatus for rolling a ring-shaped work |
| 02/12/1997 | EP0757602A1 Process and device for the continuous, chipless separation of individual rings from tubular workpieces |
| 01/23/1997 | DE19629538A1 Manufacture of ring-shaped flanged workpieces |
| 01/23/1997 | DE19526900A1 Combined ring cutting and converting |
| 01/21/1997 | US5595848 Electrophotographic photosensitive member produced from aluminum pipe |
| 01/02/1997 | DE19625893A1 Disc-shaped blank making process |
| 12/21/1996 | CA2188743A1 Tubular filtering apparatus and method of manufacturing the same |
| 12/05/1996 | WO1996038241A1 Process for producing annular work pieces from metal with a profiled cross-section and a rolling facility for carrying out the method |