| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 02/04/1998 | CN1172445A Method for making flat components and resulting flat components |
| 01/28/1998 | EP0820821A1 Process for cutting out a blank from a sheet metal plate |
| 01/27/1998 | US5711351 Forming openings in pipes |
| 01/27/1998 | US5711180 Pressing cam die |
| 01/27/1998 | US5711176 Blanking method |
| 01/21/1998 | EP0819031A1 Stamping and forming machine having high speed toggle actuated ram |
| 01/21/1998 | EP0662871B1 Rotary apparatus with moveable die |
| 01/20/1998 | US5709125 For reciprocating a ram through a full cycle |
| 01/15/1998 | WO1998001288A1 Punching tool, in particular for punching sheet metal |
| 01/14/1998 | EP0818328A1 Process for building a spoke wheel,rim drilled according the process,insert adapted to equip the rim,and wheel paricularly for cycle |
| 01/14/1998 | EP0818253A2 Turret punching press |
| 01/14/1998 | CN1170103A Gear |
| 01/13/1998 | US5706711 Punch drive control apparatus |
| 01/07/1998 | EP0815979A2 Method of punching a punch guide hole in a blank holder of a punch assembly, a punch assembly and a blank holder |
| 01/07/1998 | EP0815978A2 Method of producing sheet metal parts for vehicle safety belt systems |
| 01/07/1998 | EP0623062B1 Angle punching die arrangement |
| 01/07/1998 | CN1169344A Mould for making square-round stamping piece without finishing allowance for electric moter |
| 01/02/1998 | DE19726314A1 Hydraulic press unit |
| 12/31/1997 | CN2271419Y Punching implement for shaping screw mould |
| 12/30/1997 | US5701791 Workpiece processing machine with retractable clamping device |
| 12/30/1997 | US5701790 Upper tool for a press |
| 12/30/1997 | US5701782 For stamping parts from a sheet of stock material |
| 12/24/1997 | CN1036768C Processing equipment for continuously and synchronously boring hub |
| 12/23/1997 | US5699708 Punch press device |
| 12/18/1997 | DE19624063A1 Punching yoke |
| 12/17/1997 | EP0812640A1 Gear |
| 12/17/1997 | EP0812242A1 Apparatus for punching holes in elongate sections |
| 12/17/1997 | CN2270572Y Simple hand-operated perforating and cutting machine |
| 12/16/1997 | US5697242 Method and apparatus for reforming can bottom to provide improved strength |
| 12/11/1997 | WO1997046338A1 A lamina stack with at least one lamina layer having a plurality of discrete segments and an apparatus and method for manufacturing said stack |
| 12/10/1997 | EP0811439A2 Device for perforating metal sheets |
| 12/10/1997 | EP0811438A2 Cutting and notching device for perforated metal sheets |
| 12/10/1997 | CN1167283A Blade for controlling developing agent thickness and productive method thereof and electric record imaging device |
| 12/09/1997 | US5695591 Apparatus and method for manufacturing laminated product by press |
| 12/09/1997 | US5694804 Stamping and forming machine having high speed toggle actuated ram |
| 12/04/1997 | WO1997045252A1 Control device for hydraulically driven tool |
| 12/04/1997 | DE19723084A1 Hydraulic stamping press |
| 12/04/1997 | DE19711706A1 Portable hand-held hydraulic tool for e.g. pressing, cutting or stamping |
| 12/03/1997 | EP0809550A1 Sheet metal work centre |
| 12/03/1997 | EP0809548A1 Method in a sheet metal work centre and a sheet metal work centre |
| 12/03/1997 | CN2269251Y Hand operated hydraulic perforating machine for angle steel |
| 11/30/1997 | CA2205992A1 Method of manufacturing a plurality of identically shaped articles |
| 11/27/1997 | DE19720478A1 Sheet metal processing machine |
| 11/25/1997 | US5691037 Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making |
| 11/20/1997 | DE19644166C1 Process for manufacturing durable machine knitting needles etc. |
| 11/19/1997 | CN2267876Y Anti-drop easy-to-mount-dismount punching-needle mould |
| 11/19/1997 | CN1165490A Machine for stamping, bending and assembling sheet metal parts |
| 11/18/1997 | CA2003201C Turret punch press |
| 11/11/1997 | US5685812 Turret punch press |
| 11/11/1997 | CA2033422C Method for manufacturing expanded mesh sheet and apparatus for carrying out method |
| 11/06/1997 | DE19617510A1 Stamping tool for manufacture and working of small components |
| 11/05/1997 | EP0554258B1 Electromagnetically driven punch press with magnetically isolated removable electromagnetic thrust motor |
| 11/04/1997 | US5684708 Numerically controlled machining method and system |
| 11/04/1997 | US5683023 Apparatus for separating micro-joint processed products and die used therefor |
| 11/04/1997 | US5682787 Die assembly for plural kinds of works |
| 11/04/1997 | US5682782 Workpiece-deforming tool and die for use in a punch press |
| 11/04/1997 | US5682742 Apparatus and method for controlling driving of a ram of a hydraulic cylinder of a hydraulic press equipment |
| 11/04/1997 | US5682657 Punch press equipped with marking apparatus and method for marking by the punch press |
| 10/29/1997 | EP0802856A2 Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making |
| 10/29/1997 | EP0802838A1 Workpiece-deforming tool and die for use in a punch press |
| 10/29/1997 | EP0714329B1 Mechanical hand for moving plates, in particular sheet metal panels, with respect to a machine tool such as a bending press |
| 10/29/1997 | CN2265865Y Metal workpiece punching and cutting device |
| 10/29/1997 | CN1163167A Method for producing big and small toothed plate of angle regulator for automobile seat |
| 10/23/1997 | WO1997038832A1 Device for perforating webs of foil, in particular plastic foil |
| 10/22/1997 | EP0802026A1 Perforating appparatus for foils, especially plastic foils |
| 10/22/1997 | EP0802000A1 Die holder mounting structure |
| 10/21/1997 | US5679106 Roller for forming corrugated fin |
| 10/21/1997 | US5678468 Lateral punching unit |
| 10/16/1997 | WO1997037787A1 Rotary forming apparatus and method of rotary forming |
| 10/15/1997 | EP0800426A1 Method for making flat components, and resulting flat components |
| 10/11/1997 | CA2173776A1 Rotary forming apparatus and method of rotary forming |
| 10/09/1997 | DE19613153A1 Cutter for hole punching tools |
| 10/07/1997 | US5673601 Breakthrough buffer for presses and control method therefor |
| 10/07/1997 | US5673585 For modifying the surface of a sheet blank |
| 10/07/1997 | US5673580 Burring processing method, jig for burring processing, and burring processing apparatus |
| 10/02/1997 | WO1997035710A1 Press with a hydraulic plate |
| 10/02/1997 | WO1997035675A1 Precision blanking press with knife-edged ring and counter cylinder |
| 10/02/1997 | DE19642635A1 Hydraulically or mechanically driven ram of fine-blanking press |
| 10/02/1997 | DE19612242A1 Presse Press |
| 10/01/1997 | CN2263579Y Automatic feeding puncher |
| 09/23/1997 | US5669866 Punch press with tool changer |
| 09/16/1997 | US5666840 Method for piercing two aligned holes in a hydroformed tube |
| 09/12/1997 | WO1997032678A1 Method and device for producing stamped parts |
| 09/11/1997 | DE19608551A1 Verfahren und Vorrichtung zur Herstellung von Stanzteilen Method and apparatus for the production of stampings |
| 09/10/1997 | EP0793551A1 Machine for stamping, bending and assembling sheet metal parts |
| 09/04/1997 | DE19609263A1 Multilayered flat seal production method |
| 09/03/1997 | CN2261304Y Press cutting hole maker |
| 09/02/1997 | US5662016 Punching die |
| 09/02/1997 | US5661993 Punch tool and method for manufacturing truss plates |
| 08/28/1997 | DE19707753A1 Metal workpiece smoothed by pressure ram |
| 08/21/1997 | DE19605113A1 Precision cutting method for, e.g. sheet metal |
| 08/20/1997 | EP0790085A1 A slotting tool |
| 08/12/1997 | US5655401 Tabbing tool and method |
| 07/30/1997 | EP0526449B1 Apparatus for producing a blank from stock material |
| 07/24/1997 | DE19601623A1 Vehicle gear shift rod making method |
| 07/23/1997 | EP0784520A1 Method and apparatus for making nipple holes in a double-walled hollow rim of a spoke wheel |
| 07/17/1997 | DE19701007A1 Workpiece feed mechanism |
| 07/17/1997 | DE19700624A1 Verfahren zur Steuerung einer mit Arbeitsrädchen versehenen Lochpressmaschine und Verfahren zur Bearbeitung mittels der Lochpressmaschine Method for controlling a working wheel provided with hole press machine and method for processing through the hole pressing machine |
| 07/17/1997 | DE19601936A1 Hole punching tool |
| 07/15/1997 | US5647256 Punch unit including an adjustable punch |