| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 05/20/2009 | CN101433940A Method for processing tooth-shaped surface of tooth-shaped chain plate and clicking die for cutting tooth |
| 05/20/2009 | CN101433913A Gear ring special-shaped ring forging fixture for transmission components of large-sized engineering machinery |
| 05/20/2009 | CN100488657C Water-sealed zip fastener external chain tooth composite punching die |
| 05/19/2009 | US7534501 Precision-folded, high strength, fatigue-resistant structures and sheet therefor |
| 05/19/2009 | CA2564839C Turret tool holder for a press |
| 05/14/2009 | US20090123691 Metal sheet, method for fixing said metal sheet by flow drilling and assembly comprising same |
| 05/14/2009 | US20090120261 Die and die device |
| 05/13/2009 | CN201235384Y Feeding and discharging processing device of electric machine compound mold |
| 05/13/2009 | CN201235380Y Canine tooth plate gear shaping mould of angle regulator for seat of vehicle |
| 05/13/2009 | CN101428320A Cut die feeding mechanism |
| 05/13/2009 | CN101428317A Punching mould |
| 05/13/2009 | CN100486730C Method for forming platy pieces with negative angle |
| 05/13/2009 | CN100486729C Zipper type cold stamping method, and splitting die |
| 05/07/2009 | US20090113678 Catch base for attaching catch of snap fastener |
| 05/07/2009 | DE102007046055B4 Stanzwerkzeug für ein Innenhochdruck-Umformwerkzeug Punching tool for an internal high pressure forming tool |
| 05/06/2009 | EP2054177A1 Method and device for dampening cutting shock |
| 05/06/2009 | EP1727654B1 Continuous rotary hole punching method and apparatus |
| 05/06/2009 | CN201231289Y Die device and numerical control stamping machine tool |
| 05/06/2009 | CN201231279Y Radial expansion type punch head |
| 05/06/2009 | CN201231278Y Lithium ribbon blanking device and button lithium battery cathode automatic production line comprising the same |
| 05/06/2009 | CN201231264Y Flute winding machine tool |
| 05/06/2009 | CN100484702C Automatic punching welding apparatus of negative pole currect collecting net of button type cell |
| 04/30/2009 | US20090107205 Apparatus for Apertured Attachment of Metal Sheets |
| 04/30/2009 | US20090107204 Method and tool device for forming |
| 04/30/2009 | DE202009001645U1 Vorrichtung zum bedarfsweisen Erzeugen eines Durchbruchs in einem Ausstattungsteil eines Fahrzeugs Apparatus for required producing a breakthrough in a piece of equipment of a vehicle |
| 04/30/2009 | DE102007051685A1 Displacement device for use in e.g. material punching device, has membrane element provided in holding frame and subjectable by hydraulic fluid toward supporting plate so that plate is shifted, and frame arranged at base plate |
| 04/29/2009 | EP1747087B1 Turret tool holder for a press |
| 04/29/2009 | CN201227671Y Automobile roof skylight punched hole switch-over mechanism in perforating die |
| 04/29/2009 | CN201227670Y Hydraulic side locking machine |
| 04/29/2009 | CN201227669Y Automatic press device |
| 04/29/2009 | CN101417385A Round rod material fracturing method |
| 04/29/2009 | CN101417301A Production method of light car differential gear adjustment-nut |
| 04/28/2009 | US7523635 Method of producing wheel and the wheel |
| 04/23/2009 | DE102007050498A1 Verfahren zur Herstellung von Schlitzen in der Bodenwand einer napfförmigen Hülsenanordnung A method for making slits in the bottom wall of a cup-shaped sleeve assembly |
| 04/22/2009 | EP2050524A2 Method for producing slits in the bottom wall of a pot-shaped sleeve assembly |
| 04/22/2009 | EP2050522A2 Perforated metal sheet |
| 04/22/2009 | EP2050521A2 An apparatus and a method for cold shearing discoid preforms from a metal strip |
| 04/22/2009 | EP2050402A1 Thin bladed obturator |
| 04/22/2009 | EP2049282A1 V-belt drive with a force returning device |
| 04/22/2009 | EP2002908A9 Method of manufacturing disc spring and clutch device |
| 04/22/2009 | CN201226479Y Equal altitudes press working apparatus for motor iron core |
| 04/22/2009 | CN201224130Y Die cutting mould |
| 04/22/2009 | CN201223898Y Horizontal punching die for lower support of shock absorber |
| 04/22/2009 | CN201223897Y Hollow section bar punch machine |
| 04/22/2009 | CN201223896Y Automobile flat plate frame punch machine |
| 04/22/2009 | CN101415506A Stamping apparatus with feed device |
| 04/22/2009 | CN101412060A Material-pressing mechanism for angle-bar breaking mold and angle-bar breaking mold |
| 04/16/2009 | WO2009048096A1 Molding apparatus |
| 04/16/2009 | US20090095046 Punching machine with spring-supported work support |
| 04/15/2009 | EP2047923A1 Punching machine for blanking metal sheets |
| 04/15/2009 | CN201220367Y Dividing apparatus of automobile wheel spoke punching handhole |
| 04/15/2009 | CN201220251Y Self centering fixture for wheel spoke |
| 04/15/2009 | CN101410201A Production method for coned disk spring and clutch unit |
| 04/15/2009 | CN101409115A Composite metal sheet, method for joining metal sheets, and device for joining metal sheets |
| 04/15/2009 | CN101407012A Manufacturing method of metal framework for flat panel display |
| 04/15/2009 | CN101406915A Mold and method for pressing incision of product with inner necking |
| 04/15/2009 | CN101406914A Micro-perforating die |
| 04/15/2009 | CN101406908A Method for processing cold-bending welding square quarter bend with punched hole |
| 04/15/2009 | CN100478123C Stainless-steel band special apparatus for steel-aluminum composite contact rail |
| 04/15/2009 | CN100478119C Making process of stainless steel belt for composite aluminium-steel contact rail |
| 04/15/2009 | CN100478097C Method of designing fold lines in sheet material |
| 04/14/2009 | US7517590 Metal band as inlay for trim strips or sealing strips |
| 04/09/2009 | US20090090157 Method and device for fine blanking and forming a workpiece |
| 04/09/2009 | US20090090156 Member having a chamfered through hole and manufacturing method of the same |
| 04/09/2009 | DE202009000684U1 Vorrichtung zum Feinschneiden von Werkstücken Apparatus for precision cutting of workpieces |
| 04/08/2009 | EP2045070A2 Cam slider-returning mechanism |
| 04/08/2009 | CN201217226Y Electric door lockhole punching machine |
| 04/08/2009 | CN201217036Y Corner iron workpiece eyelet work positioning device |
| 04/08/2009 | CN201217032Y Mechanism for punching gaping place on front edge of vehicle roof board |
| 04/08/2009 | CN101402124A Method of manufacturing gear from metal sheet and the gear manufactured by the method |
| 04/08/2009 | CN101402120A Flanging eyelet work dual-movement composite mold |
| 04/08/2009 | CN101402118A Angle steel eyelet work product line |
| 04/07/2009 | US7513137 Method of making a shaped sheet-metal part |
| 04/02/2009 | WO2009042382A1 Stripper assemblies and components thereof for multi-tool punch assemblies |
| 04/02/2009 | WO2009041217A1 Member having chamfered through-hole and method of producing the same |
| 04/02/2009 | DE102008046776A1 Verbundmetallblech, Verfahren zum Verbinden von Metallblechen, und Vorrichtung zum Verbinden von Metallblechen Composite metal sheet, method of joining metal sheets, and apparatus for joining metal sheets |
| 04/01/2009 | EP2042279A1 Stamping roller assembly and rotation stamping method |
| 04/01/2009 | EP2042249A1 Method and device for manufacturing stamping parts with a largely smooth cutting plane and larger functional area |
| 04/01/2009 | CN201214179Y Integral processing equipment of steel coil guard ring |
| 04/01/2009 | CN201214118Y Butt end reclaiming apparatus for relative hole punching |
| 04/01/2009 | CN101400460A Punch, apparatus and method for forming opposing holes in a hollow part, and a part formed therefrom |
| 04/01/2009 | CN101396707A Method and device for manufacturing stamping parts with a largely smooth cutting plane and larger functional area |
| 04/01/2009 | CN100473474C Plate material re-locating system of numerically controlled plate punch |
| 03/26/2009 | WO2009039528A1 Method of forming two-dimensional sheet material into three-dimensional structure |
| 03/26/2009 | CA2639773A1 Method and device for the production of a stamping with almost smooth cutting and enlarged functional surface |
| 03/25/2009 | EP1812182A4 Press mounted cam |
| 03/25/2009 | EP1750866B1 Roller cam |
| 03/25/2009 | CN201211541Y Manual punching apparatus |
| 03/19/2009 | US20090071215 Hydroformed part, and mold used for making hydroformed part |
| 03/19/2009 | DE102008046266A1 Verfahren zur Herstellung einer Aufnahme für eine Blechschraube in einem Blech sowie die Aufnahme an sich A method of manufacturing a receptacle for a sheet metal screw into a metal sheet, and the uptake per se |
| 03/18/2009 | EP2036631A1 Method and device for manufacturing stamping parts with a larger functional area |
| 03/18/2009 | EP2036630A1 Method and device for lubricating a tool and workpiece when cutting |
| 03/18/2009 | EP2036629A1 Method and device for fine cutting and forming of a workpiece |
| 03/18/2009 | EP2036626A1 Perforation device |
| 03/18/2009 | CN201208762Y Hand press device for pad |
| 03/18/2009 | CN101389422A Stripper plate mounting apparatus |
| 03/18/2009 | CN101386047A Method and device for lubricating a tool and workpiece when cutting |
| 03/18/2009 | CN101386046A U shaped beam three-face punching technique and production device using the technique |
| 03/18/2009 | CN101386045A Method and device for manufacturing stamping parts with a larger functional area |
| 03/18/2009 | CN101386044A Method and device for fine cutting and forming of a workpiece |