| Patents for B21H 1 - Making articles shaped as bodies of revolution (2,244) |
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| 04/18/2001 | EP1092489A1 Method for manufacturing a roller for tracked vehicle |
| 04/11/2001 | EP1089838A1 Method for producing vehicle wheels |
| 04/10/2001 | US6213648 Sheet metal cage for roller bearings and method for producing sheet metal cage |
| 04/03/2001 | US6209191 Method for manufacturing pulley integrated type rotor |
| 03/20/2001 | US6203442 Hardened steel pin, pin and washer fastener, washer for fastener, and pin-making method |
| 03/15/2001 | DE19955768A1 Shaft portion of ball-and-socket joint for use in cars is produced by rolling cold-forged blank, cavity being formed in head to improve its sphericity and undulating surface on the surface of chamber to improve roughness of surface of ball |
| 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 |
| 03/07/2001 | CN1062785C Method for producing seamless hot-finished tube |
| 02/28/2001 | EP0984837B1 Method and device for producing a one-piece vehicle wheel |
| 02/28/2001 | CN2421101Y Multi-point radial roll |
| 02/22/2001 | DE19954044C1 Individual ring separation device has tubular workpiece fed to separation roller mechanism with at least 2 cutting rollers via inductive heating device |
| 02/07/2001 | CN1061571C Method of production of poly-v groove pulley made of sheet metal and the pulley |
| 02/01/2001 | WO2001007181A1 Sheet metal member and method of manufacturing the member |
| 01/31/2001 | EP1072337A1 Flat-die type rolling machine having device for fastening together die-support frame members and method of fastening the same |
| 01/25/2001 | DE19946111C1 Ring separation device for tubular workpiece uses coupled cutting rollers around outside of workpiece each provided with cylindrical body having helical cutting edge and auxiliary thread |
| 01/09/2001 | US6171042 Hardened steel pin, pin and washer fastener, washer for fastener, and pin-making method |
| 01/03/2001 | CN2412677Y Ring roller |
| 12/20/2000 | CN1059616C Steel ball bloom continuous rolling mill |
| 12/20/2000 | CN1059615C Splay foot shaping method for rail bar of door or window, and its structure |
| 12/19/2000 | US6161409 Process and device for manufacturing a gear part with outer teeth |
| 12/12/2000 | US6158261 Mill for producing axially symmetric parts |
| 12/07/2000 | WO2000072994A2 Method and device for flow turning |
| 11/22/2000 | CN1058648C Process and device for continuous, chipless separation of individual rings from tubular workpieces |
| 11/21/2000 | US6148498 Method of making a brake drum ring |
| 11/14/2000 | US6145362 Process and apparatus for the manufacture of a cooking vessel by roll forming |
| 11/14/2000 | US6145361 Apparatus and method for production of balls by a rolling operation |
| 11/07/2000 | US6142900 Sprocket with thin body and grooved teeth |
| 11/02/2000 | DE19920163A1 Cold ring rolling process, especially for profiled ring rolling, comprises producing several parallel identical rings in the rolling gap between a profiled roll and a mandrel |
| 10/31/2000 | CA2161020C Method for the non-cutting production of a transmission component hub |
| 10/19/2000 | WO2000061316A1 Method of manufacturing poly-v-grooved pulley |
| 10/11/2000 | EP1042091A1 Point contact densification of sintered metal powder |
| 10/05/2000 | DE19913178A1 Verfahren zur Herstellung von Stahlkugeln A process for the production of steel balls |
| 09/28/2000 | WO2000056480A1 Method for the production of steel balls |
| 09/27/2000 | CN1056792C Wedge cross-rolling stepped shaft edging wedge-shaped die |
| 09/21/2000 | WO2000054906A1 Method of manufacturing poly-v-grooved pulley |
| 09/21/2000 | WO2000054905A1 Method of manufacturing poly-v-grooved pulley |
| 09/14/2000 | DE19910474A1 Fabrication of hub sleeve for bicycle hubs uses tool with relatively moveable profile outer roller and inner mandrel, for a 'rolling-stamping' process |
| 09/12/2000 | US6116632 Trailer hitch ball formed onto stud |
| 09/12/2000 | US6115920 Method of manufacturing multi-grooved V pulley |
| 09/07/2000 | DE19908995A1 Umformwerkzeug zur Umformung von rotationssymmetrischen Werkstücken Shaping tool for shaping of rotationally symmetrical workpieces |
| 09/07/2000 | DE10008659A1 Rolling process to produce hollow component from cylindrical blank has two pegs holding blank, with one peg end formed as mandrel and moved towards second peg during rolling |
| 09/06/2000 | EP1033200A2 V-pulley for continuously variable transmission and process for making moveable pulley half of the pulley |
| 09/06/2000 | EP1033187A1 Forming tool for forming rotationally symmetrical workpieces |
| 09/05/2000 | US6112391 Automatic loader-unloader for disk blank workpieces |
| 08/31/2000 | WO2000050185A1 Method of manufacturing form-rolled part |
| 08/31/2000 | DE10005578A1 Hollow body production process, involving forming conical region in workpiece, heating it, applying axial upsetting force and forming step |
| 08/29/2000 | US6110419 Point contact densification |
| 08/24/2000 | DE19916280A1 Non-swarf-producing device for making hub, forming projecting nose and recess of appropriate height and depth |
| 08/23/2000 | EP1029614A1 Flow-turning device and method for forming a workpiece |
| 08/22/2000 | US6105410 Method for forming a hub disk and metal spinning roller for use in the forming of a hub disk |
| 08/17/2000 | DE19905038A1 Mandrel device with transverse rolling device, with movable mandrel of defined geometry, mandrel feed device and control device |
| 08/16/2000 | CN2391704Y Semi-automatic screw pressing means for making round articles |
| 08/09/2000 | EP1024914A1 Roll bending machine for forming a ring-shaped part |
| 08/03/2000 | DE19960582A1 Pressure rolling process for transmission components, involving clamping workpiece to tool, rotating it, partly separating sector with pressure roller and deforming |
| 07/27/2000 | DE19946508A1 Fabrication method for shaft for taper disc transmission uses pair of pressure rollers to upset round bar blank and formed flange |
| 07/19/2000 | CN1260287A Cup-shape member with boss and wheel for vehicles |
| 07/18/2000 | US6089815 Basket assembly for wheel rim transfer |
| 07/18/2000 | US6089068 Method of manufacturing a shaft having a fluid flow passage |
| 07/18/2000 | US6089065 Process and arrangement for the cold forming of hollow workpieces |
| 07/12/2000 | EP1017518A1 Flowturning device and method for producing internal geared wheels with two sets of inner toothing |
| 07/12/2000 | EP0921879B1 Process and device for manufacturing a gear part with outer teeth |
| 07/05/2000 | CN1259064A Roll-formed bearing race and process for producing the same |
| 06/29/2000 | DE19949363A1 Fabrication method for motor vehicle wheel is manufacture by flow-turning process from a disc-shaped blank without undercuts |
| 06/28/2000 | EP1013356A2 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 |
| 06/28/2000 | EP1011894A1 Roll-formed bearing race and process for producing the same |
| 06/21/2000 | CN1053604C Method for manufacturing a brake shoe |
| 06/15/2000 | DE19856687A1 Machine tool with main spindle and capstan tool head, with tool head able to turn in tool holder which can travel in X-axis direction |
| 06/06/2000 | US6071205 Multi-stepped pulley, method of manufacturing same, and apparatus for manufacturing same |
| 06/06/2000 | US6070443 Apparatus for forming an annular member |
| 05/23/2000 | CA2179225C Method of and apparatus for forming a disc-shaped blank |
| 05/11/2000 | DE19860045A1 Verfahren zum Herstellen eines ringförmigen Blechteils mit einer Umfangswand A method of manufacturing a ring-shaped sheet-metal part with a peripheral wall |
| 05/03/2000 | EP0997210A2 Method of manufacturing of disc-shaped objects with hub and pressure roll for realising this method |
| 04/27/2000 | DE19849182A1 Rolling of annular workpieces takes place at least in two stages, with predominantly axial and tangential material flows of the blank produced respectively at the first and second stages |
| 04/19/2000 | CN1051483C Metal sheet having annular peripheral wall and method of thickening annular peripheral wall |
| 04/06/2000 | WO2000018973A1 Method for processing billets out of metals and alloys and the article |
| 03/29/2000 | CN1249005A Continuous annealing furnace, rolling bearing, annealing method, and method of manufacturing inner and outer races of deeply groove ball bearing |
| 03/28/2000 | US6041490 Method for manufacturing pulley integrated rotor |
| 03/23/2000 | DE19850740A1 Transmission parts, especially gears, production from round metal blanks uses pressure rollers to press blanks to reduce thickness and increase external diameter |
| 03/21/2000 | US6038758 Production method of a spinning ring for a ring spinning machine |
| 03/15/2000 | EP0984837A1 Method and device for producing a one-piece vehicle wheel |
| 03/15/2000 | CN1247111A Equipment for collecing rings placed in form of overlapping on center of cooling conveyer belt |
| 03/07/2000 | US6033001 Wheel for rolling stock and manufacturing method thereof |
| 02/29/2000 | US6029351 Method of making a vehicle wheel |
| 02/22/2000 | US6026666 Method for manufacturing internally geared parts |
| 02/22/2000 | US6026572 Manufacture of a jewelry ring having inner lips at edges thereof and being elongated and shaped by a roller assembly to strengthen the same |
| 02/17/2000 | DE19909519A1 Manufacturing method for e.g. aluminum wheel for motor vehicles pre-cast aluminum alloy blank is hot pressure-rolled, cooled to quench temperature, and cooled to quench temperature |
| 02/02/2000 | EP0976950A1 Sprocket and method of manufacturing same |
| 02/01/2000 | US6019517 Preformed pieces for outer and inner races of bearings |
| 01/26/2000 | EP0974407A2 Apparatus for centralizing rings being deposited in an overlapping pattern on a cooling conveyor |
| 01/25/2000 | US6016602 Method of producing a sheet metal gear |
| 01/21/2000 | CA2277500A1 Apparatus for centralizing rings being deposited in an overlapping pattern on a cooling conveyor |
| 01/20/2000 | DE19915027A1 Forming gear element for starter motor, and resultant gear element, with successively diminishing wall thickness of element obtained by combined radial and axial motion of at least one adjustable roll of pressure rolling machine |
| 01/13/2000 | DE19929224A1 Pressure rolling unit comprises at least two rolling elements |
| 01/11/2000 | US6012318 Method of producing a sheet metal pulley for a V belt |
| 01/04/2000 | US6010088 Apparatus for centralizing rings being deposited in an overlapping pattern on a cooling conveyor |
| 12/30/1999 | DE19828421A1 Making e.g. tires, by rolling to deform and consolidate |
| 12/30/1999 | DE19827499A1 Pressure rolling unit for forming workpieces |
| 12/29/1999 | WO1999067042A1 Method for producing vehicle wheels |
| 12/29/1999 | EP0852525B1 Method of producing large annular workpieces |
| 12/28/1999 | US6006569 Method for manufacturing a dome from an undersized blank |