| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 05/08/2001 | CA2284509C Turret punch press |
| 05/03/2001 | US20010000549 Laminated parts with center interlock and method and apparatus for their manufacture |
| 05/02/2001 | CN2428238Y PC sheet-material punching cutting tool |
| 05/01/2001 | US6224165 Method for boring a spoke rim, rim bored according to the method, insert adapted to equip the rim, and wheel especially cycle rim |
| 05/01/2001 | US6223578 Method of manufacturing a sheet pressing wheel |
| 04/26/2001 | DE19948857A1 Punching device for metal sheets esp. of aluminum has cutting punch and cutting plate with cutting edges defining two cutting gaps for simultaneous shearing cut and trim cut |
| 04/25/2001 | CN1064868C Punching machine and punching method |
| 04/24/2001 | US6220138 Punch press |
| 04/24/2001 | US6220137 Press apparatus |
| 04/19/2001 | WO2001026838A1 A method and a device for the repetitive punching from plane material of articles with a good measure precision |
| 04/18/2001 | EP1091815A1 Device and method for shaping flat articles |
| 04/17/2001 | US6216522 Tool for installing a turn vane |
| 04/12/2001 | DE19948002A1 Press, especially press for large-scale deformation has hydraulic force transmission device connected at least temporarily via ram with drive device. |
| 04/11/2001 | EP1089837A1 Tool holder with punching units |
| 04/11/2001 | CN1064282C Machine for stamping, bending and assembling sheet metal parts |
| 04/10/2001 | US6212982 Process for manufacturing slot-shaped openings on hollow sections and apparatus for implementing same |
| 04/10/2001 | US6212930 Method and device for producing stamped parts |
| 04/03/2001 | US6209381 Method and system for chamfering and press therefor |
| 03/28/2001 | CN1063686C Technology for forming cylindrical cam for punching drum |
| 03/15/2001 | WO2001017710A1 Metal sheet drilling disk roll, metal sheet drilling device using the roll, metal sheet drilling method, and drilled metal sheet |
| 03/14/2001 | CN1063258C 齿轮 Gear |
| 03/13/2001 | US6200246 Gripper element for a punch or a die of a punching machine |
| 03/08/2001 | WO2000054942A8 Bump cam |
| 03/07/2001 | EP1080335A1 Heat exchanger with an integrated tank and head sheet |
| 03/06/2001 | US6196103 Punch guide assembly |
| 03/06/2001 | US6195875 Apparatus for manufacturing long, slender lamina stacks from nonuniform laminae |
| 03/01/2001 | WO2001014079A1 Thin sheet punching device |
| 02/28/2001 | CN2421192Y Synchronous punching special machine for jointing plate |
| 02/28/2001 | CN2421097Y Secondary perforator for steel belt |
| 02/25/2001 | CA2280650A1 Hole cutting method and apparatus for tubing |
| 02/21/2001 | CN1284414A Production process of bridge filter for well |
| 02/14/2001 | EP1075883A2 Method of punching workpieces with internal high pressure forming |
| 02/13/2001 | US6186225 Heat exchanger with an integrated tank and head sheet |
| 02/13/2001 | US6185974 Machine for punching and bending metal sheets |
| 02/08/2001 | WO2001008829A1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece |
| 02/07/2001 | EP1074320A1 Punch- and embossing machine |
| 02/06/2001 | US6182545 Wedge-lockable removable punch and die bushing in retainer |
| 02/06/2001 | US6182360 Method of producing and stacking components |
| 01/31/2001 | EP1073059A1 Method of press-working frame plate on which disk driving motor is arranged |
| 01/30/2001 | US6179549 Loading and unloading device for sheet metals |
| 01/30/2001 | US6179049 Heat exchanger with an integrated tank and head sheet |
| 01/30/2001 | US6178804 Top die raising and lowering guide mechanism for punching, pressing, and shearing machines |
| 01/30/2001 | US6178796 Device and method for shaping flat articles |
| 01/25/2001 | DE19934663A1 Punching device for use during internal high pressure forming has punching die held by spring-loaded locking elements in holder block |
| 01/18/2001 | WO2001003860A2 Wedge-lockable removable punch and die bushing in retainer |
| 01/18/2001 | DE19929163C1 Vorrichtung zum Feinschneiden von Werkstücken aus einem Blech Apparatus for fine cutting workpieces from a sheet |
| 01/16/2001 | US6173598 Modular multipurpose bending machine and its linear positioning system |
| 01/16/2001 | CA2073650C Two stage die set |
| 01/10/2001 | EP1067311A1 Belt for continuously variable transmission |
| 01/10/2001 | CN2413816Y Three-die digital controlled perforator |
| 01/10/2001 | CN1279364A Strap for continuous transmission device |
| 01/09/2001 | US6170375 Bump cam |
| 01/04/2001 | WO2001000396A2 Device for finely cutting workpieces from a material |
| 01/04/2001 | WO2001000361A1 Tool system for metal-cutting machining of sheetlike workpieces |
| 01/04/2001 | CA2341210A1 Tool system for metal-cutting machining of sheetlike workpieces |
| 01/03/2001 | EP1064124A1 Apparatus for punching steel studs |
| 01/03/2001 | EP1064118A1 Method and apparatus for producing beneficial stresses around apertures by the use of focused stress waves |
| 01/03/2001 | CN2412676Y Pipe shaping die |
| 12/28/2000 | DE19928893A1 Method for stamping stator and rotor plates for electric machines has first body with stamping tool and second body holding plates with both bodies movable with accelerations inversely proportional to masses of bodies |
| 12/27/2000 | EP1063041A2 Tool system for metal-cutting machining of sheetlike work-pieces |
| 12/27/2000 | EP1063030A2 Press device |
| 12/27/2000 | CN1278196A Method for producing exact cut edges |
| 12/27/2000 | CN1059975C Shutter manufacturing method |
| 12/26/2000 | US6164115 Cam slider and a cam unit using the same |
| 12/26/2000 | US6163949 Method for manufacturing long, slender lamina stack from nonuniform laminae |
| 12/21/2000 | WO2000076685A1 Electromagnetic and/or electrohydraulic forming of a metal plate |
| 12/20/2000 | CN1059614C Die assembly for plural kinds of works |
| 12/19/2000 | US6163734 Punching tool provided with tool identification medium and punch press provided with a tool identification medium reader cross reference to related application |
| 12/13/2000 | EP1058605A1 Quick change adjustable punch tool assembly and method of adjustment |
| 12/13/2000 | CN2410058Y Hydraulic perforating tool |
| 12/07/2000 | DE19909928A1 Cutter device for hollow components produced by internal high pressure forming has holder ring to support component during cutting |
| 12/06/2000 | EP1057799A2 Edged ceramic member, a punch for manufacturing a lead frame, a method of manufacturing lead frames and a method of manufacturing an edged ceramic member |
| 12/06/2000 | EP1057551A1 A multiple punch unit and a machine tool provided with such multiple punch unit |
| 11/30/2000 | WO2000071309A1 Self-guiding punch and die set |
| 11/28/2000 | US6152005 Method of punching a punch guide hole in a blank holder of a punch assembly a punch assembly and a blank holder |
| 11/28/2000 | US6151947 Method and apparatus for the production of bent sheet metal pieces |
| 11/23/2000 | DE19923206A1 Producing stator and rotor iron laminations for electric machines, by stamping stator slots in centrally bored crude plate, separating rotor and stator laminations, then stamping rotor slots |
| 11/23/2000 | DE19908603C1 Press for stamping buckles of a constant depth in flat workpieces has a sprung upper die at the ram with a shaped recess in the lower die to give the required depth |
| 11/22/2000 | CN1273889A Mould and technology for shaping hinge core of hinge cylinder for steel door |
| 11/22/2000 | CN1058816C Method for mfg. stator of stepping motor |
| 11/21/2000 | US6148707 Punch press and method of punching plate-type workpiece by the press |
| 11/16/2000 | WO2000069237A1 Method for producing contact between two circuit layers separated by an insulating layer |
| 11/16/2000 | DE19920241A1 Verfahren zum streifenförmigen Verarbeiten von tafelförmigen Werkstücken und Einrichtung hierzu A method of strip-like processing tabular workpieces and equipment for this purpose |
| 11/16/2000 | DE19911125C1 Workpiece cutting/perforation forms a pressure zone with a pressure medium on one side with a cutting edge and a spaced auxiliary cutting edge on the other workpiece side giving cut edges with low distortion and small flash height |
| 11/16/2000 | CA2337809A1 Method for producing contact between two circuit layers separated by an insulating layer |
| 11/15/2000 | EP1052038A2 Punching machine of section bars for roller shutter |
| 11/15/2000 | EP1052037A2 Flying punching machine for extruded section bars |
| 11/15/2000 | CN2405677Y Punching machine for plastic section |
| 11/15/2000 | CN1273151A Metal film |
| 11/14/2000 | US6145424 Punching machine and method thereof |
| 11/09/2000 | WO2000066290A1 Method for machining platelike workpieces in a striated manner and a device suited therefor |
| 11/09/2000 | WO2000023207A3 A sheet fabrication center and methods therefor of optimally fabricating worksheets |
| 11/08/2000 | EP1050351A1 Device for locking a die holder platform in punching machines for metal plates and the like |
| 11/08/2000 | EP1050350A1 Universal puncher holder adaptor for punching machines |
| 11/08/2000 | CN1272409A Method for making radiating fin of heat exchanger and metal mould for heat exchanger radiating fin |
| 11/07/2000 | US6142052 Punching tool |
| 10/25/2000 | EP1046438A1 Die holder |
| 10/24/2000 | US6134938 Forming tools |
| 10/24/2000 | CA2103002C Hot rolled beam and method of manufacture |
| 10/18/2000 | CN1270547A Member comprising several layers of a flat material and method for making the same |