| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 03/02/2004 | US6698324 Punch unit for punching a hole in a soft metal sheet |
| 02/26/2004 | WO2004017117A2 High precision optical fiber alignment components |
| 02/26/2004 | WO2004017110A2 Stamping system for manufacturing high tolerance parts |
| 02/26/2004 | US20040036344 Loop hanger for seat belt and method for manufacturing same |
| 02/26/2004 | DE20318993U1 Method for producing stacks of pressed laminations has adhesive applied to the underside of the metal sheet prior to stamping and with the laminations collected in a holder under the press |
| 02/24/2004 | CA2119878C Apparatus to determine the operational effectiveness of a machine tool and method therefor |
| 02/19/2004 | US20040031368 Device for machining band-like or plate-like material |
| 02/19/2004 | DE10235223A1 Fabrication method for truck for inline skates provides blank with central cut-out, stamped from plate metal and bent twice to form height and low platform to support boot |
| 02/18/2004 | CN2603714Y Forcer assembly |
| 02/18/2004 | CN1475353A Method for punching small holes and method for making liquid spraying head thereby |
| 02/12/2004 | US20040029670 Method for making elements of a continuously variable transmission belt |
| 02/12/2004 | US20040025561 V-belt drive |
| 02/12/2004 | DE20313173U1 Locating pin unit for machine tools, especially presses, can be mounted in tool from underside of press without adjacent parts having to be removed |
| 02/10/2004 | US6688201 Thin sheet punching device |
| 02/10/2004 | US6687968 Friction generating device and method of making the same |
| 02/04/2004 | EP1387088A1 Device for delayed and/or slowed return of gas cylinders |
| 02/04/2004 | CN1473077A Punch press, method of replacing punch and die for punch press and system |
| 01/27/2004 | US6682625 Method and apparatus for manufacturing profiles and laminates |
| 01/27/2004 | US6681611 Process and device for manufacturing holes on the circumference of hollow sections |
| 01/22/2004 | US20040011178 Die device |
| 01/22/2004 | US20040010907 Method and a machine for manufacturing a magnetic circuit for an electrical machine |
| 01/21/2004 | EP1064124B1 Apparatus for punching steel studs |
| 01/20/2004 | US6679147 Insertable punch lock |
| 01/20/2004 | US6678955 Apparatus and method of working injection hole of fluid injection nozzle |
| 01/15/2004 | WO2004005044A2 Multi-station press machine for cards |
| 01/15/2004 | WO2004004943A1 Fine forging method, method of manufacturing liquid injection head, and liquid injection head |
| 01/14/2004 | EP1380366A1 Feeding device for intermittently feeding a band material to a press and method for operating such a device |
| 01/14/2004 | CN1468156A Method for precision bending of a sheet of material and slit sheet therefor |
| 01/13/2004 | US6675688 Modular unit for converting punching machines from single-punch to multiple-punch |
| 01/13/2004 | US6675681 Method of processing sheet-like workpieces in a strip-shaped manner |
| 01/13/2004 | US6675628 Punch press |
| 01/13/2004 | US6675477 Method for manufacturing spool valve |
| 01/08/2004 | WO2004002647A1 Punch press, punch metal mold, mounting method, and tag holder used for punch metal mold |
| 01/08/2004 | US20040004102 Apparatus for a intermittent feeding of a strip shaped blank to a press and a method of operating same |
| 01/08/2004 | US20040003641 Rotary apparatus and method |
| 01/07/2004 | EP1377504A2 Dome forming system |
| 01/06/2004 | US6672226 Bracket system for shelving |
| 01/06/2004 | US6672120 In-die hydropiercing apparatus with prepiercing adjustment |
| 01/02/2004 | EP1376190A1 Optical switch |
| 12/31/2003 | WO2004001514A1 Cad/cam system for sheet metal working |
| 12/31/2003 | CN2595485Y Poly porous punching machine |
| 12/30/2003 | US6669399 Wedge-lockable removable punch and die bushing in retainer |
| 12/29/2003 | WO2004004940A1 Rotary apparatus and method |
| 12/24/2003 | WO2004000480A1 Method of stamping and piercing a tube |
| 12/24/2003 | WO2003107357A1 Radioactive sources |
| 12/24/2003 | WO2003106154A1 Servo-drive system and continuous finishing system of press |
| 12/24/2003 | WO2003106067A1 Punch press die |
| 12/24/2003 | WO2003106066A1 Die and die device |
| 12/24/2003 | CN2593929Y Punching device with single guide column |
| 12/24/2003 | CN1463449A Method and device for machining stacked core |
| 12/24/2003 | CN1131744C Modular multipurpose bending machine and its linear positioning system |
| 12/23/2003 | US6666063 Process and system for producing metal sheets |
| 12/18/2003 | WO2003103872A1 Improved stripper plate retention system |
| 12/18/2003 | WO2003103871A1 Slug float-up preventing mechanism |
| 12/18/2003 | US20030229983 Method for the manufacture of bundles of metal sheets of annular shape |
| 12/17/2003 | EP1371431A2 Method for making elements of a continuously variable transmission belt |
| 12/16/2003 | US6662426 Method for manufacturing loop hanger for seat belt |
| 12/11/2003 | US20030226437 Stripper plate retention system |
| 12/10/2003 | CN2590698Y Punching pin structure for spoke joint hole |
| 12/09/2003 | US6658908 Punch for piercing and sealing hydroformed parts |
| 12/04/2003 | WO2003099524A1 Self-adjusting support for moulds and dies |
| 12/04/2003 | WO2003099485A1 Method and apparatus for forming a structural member |
| 12/04/2003 | US20030221468 Method and apparatus for forming a structural member |
| 12/02/2003 | US6655250 Punching apparatus |
| 11/27/2003 | WO2003097271A1 Apparatus for cutting and nibbling a sheet metal in coil form |
| 11/27/2003 | DE10309915C1 Separation and/or perforation device for tubular hollow workpiece has workpiece supported during cutting or perforation via inflatable sack |
| 11/26/2003 | CN1457941A Sliding inclined wedge punching mold |
| 11/20/2003 | US20030213351 Slide cam die |
| 11/19/2003 | EP1362651A1 Slide cam die |
| 11/18/2003 | US6647846 Machine tool with feed system |
| 11/18/2003 | US6647630 Stud punch tool |
| 11/16/2003 | CA2391695A1 Slide cam die |
| 11/13/2003 | DE3745091C2 Stamping press tool unit |
| 11/12/2003 | EP1361006A1 Punch press |
| 11/12/2003 | CN2585719Y Notch punching appts. for mfg. C-shaped member of plastic/steel door/window hardware member |
| 11/12/2003 | CN1455712A Device for finely cutting workpieces from a material |
| 11/12/2003 | CN1455105A Valve disk manufacturing method for closed compressor |
| 11/11/2003 | US6647169 Optical switch |
| 11/05/2003 | EP1358022A2 Wedge-lockable removable punch and die bushing in retainer |
| 11/05/2003 | CN1453081A Metal plate producing process |
| 11/04/2003 | US6640603 Slug-retaining punch press tool |
| 11/04/2003 | US6640602 Dual notcher |
| 10/30/2003 | US20030201663 Seat frame structure and method for forming |
| 10/22/2003 | EP1015150B1 Method and apparatus for the production of bent sheet metal pieces |
| 10/21/2003 | US6636137 Ignition coil assembly |
| 10/15/2003 | EP1121211B1 Method of manufacturing long, slender lamina stacks of non-uniform laminae |
| 10/15/2003 | CN1124183C Technology for processing non-circular hole on thick metal plate |
| 10/09/2003 | WO2003082493A1 Gutter punch |
| 10/09/2003 | US20030188617 Gutter punch |
| 10/08/2003 | EP1351350A1 Method for manufacturing and/or processing contact elements in a progressive die |
| 10/08/2003 | EP1349681A1 A device for machining band-like or plate-like material |
| 10/08/2003 | EP0891235B1 Precision blanking press with knife-edged ring and counter cylinder |
| 10/08/2003 | CN1447035A Mfg. method of thrust plate and mfg. method of shaft for fluid power bearing |
| 10/02/2003 | US20030184911 Method of manufacturing a thrust plate, method of manufacturing a shaft for a hydrodynamic bearing, hydrodynamic bearing, spindle motor, and recording disk drive device |
| 10/01/2003 | EP1347844A1 Method for precision bending of a sheet of material and slit sheet therefor |
| 09/30/2003 | US6626782 Belt for continuously variable transmission |
| 09/30/2003 | US6626281 Workpiece shift apparatus for punch press |
| 09/30/2003 | US6626076 Punch press |
| 09/30/2003 | US6625861 Methods and apparatus for removing a slug from a frame of an automobile |
| 09/25/2003 | US20030177878 Sequential punch press with complementary sliding plates |