Patents
Sitemap › B21 - Mechanical metal-working without essentially removing material; Punching metal › B21D - Working or processing of sheet metal or metal tubes, rods or profiles without essentially removing material; Punching › B21D 28 - Shaping by press-cutting; Perforating
Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707)
06/2010
06/02/2010CN201493376U Novel portable pneumatic punching machine
06/02/2010CN101716628A Cascading continuous stamping die used for manufacturing fixed panel of automobile door hinge
06/02/2010CN101716627A Improved progressive stamping die for manufacturing sealing ring
06/02/2010CN101716624A Method for punching arc-shaped surface or inclined surface of television rear shell and punching die
06/02/2010CN101716623A Casing elevation punching one-step moulding method and mould thereof
06/02/2010CN101716622A Stacked punch hammerhead
06/02/2010CN101439380B Sheet material-rolling punch machine
06/02/2010CN101412060B Material-pressing mechanism for angle-bar breaking mold and angle-bar breaking mold
06/01/2010US7726553 Stamping device for generally flat articles
05/2010
05/27/2010WO2010058450A1 Method of producing blind bolt
05/27/2010US20100126640 Method and tool for hot forming a metal workpiece
05/26/2010EP1986801B1 Method and device for producing a cutout or aperture in the wall of a component formed according to the hydroforming process
05/26/2010CN201483780U horizontal punching machine
05/26/2010CN201483255U Angle-steel blanking and hole punching positioning device
05/26/2010CN201482863U Punch of metal coil micro-bur punching device
05/26/2010CN201482862U Fixture for stepped click molding manifold
05/26/2010CN201482861U Stamping machine tool for processing plates
05/26/2010CN201482860U Bearing bush automatic punching machine
05/26/2010CN201482859U High-strength geogrid shaping punching die
05/26/2010CN201482858U High-speed notching press
05/26/2010CN201482857U Device for processing pressure tank in liquid storage cylinder assembly
05/26/2010CN1970224B Tool information display device for processing machine
05/26/2010CN1561431B Method of manufacturing turbine frame of VGS type turbo charger
05/26/2010CN101712058A Forming preforms and parts therefrom
05/26/2010CN101244441B Main unit of numerical control notching press
05/25/2010US7721445 Thrust plate, method of manufacturing thereof, motor using the thrust plate, and the data storage disk drive using the motor
05/20/2010US20100122562 Metal-cutting machining method and semi-finished product
05/19/2010EP2186580A2 Method and device for pressing a collar in a metal plate and collar and plate element.
05/19/2010CN201471773U Dynamic balance mechanism of horizontal punching machine
05/19/2010CN201471533U Chipless pipe cutting device
05/19/2010CN201471147U Reverse-punch device
05/19/2010CN201471145U Gem base processing equipment
05/19/2010CN201470763U Automatic alignment punching machine with limit inductor devices
05/19/2010CN201470762U Hole flanging device for bicycle frame front joint
05/19/2010CN201470761U Automatic punching machine
05/19/2010CN201470760U Mesh cold-punching mold for metal ban scroll high-speed meshes
05/19/2010CN201470759U Equidistant hole punching device
05/19/2010CN201470758U Punching and flanging machine
05/19/2010CN201470757U Trimming die
05/19/2010CN201470756U Flat-plate blanking device
05/19/2010CN201470755U Point-punch forming mold
05/19/2010CN101708785A Manufacturing method of aluminum two-sheet zip-top can and bottom spraying machine
05/19/2010CN101708525A Aluminum two-sheet zip-top can and aluminum material thinning method thereof
05/19/2010CN101708521A Method for machining lengthways beam holes and lining beam holes of vehicle frame
05/19/2010CN101708520A Pipe punching device
05/19/2010CN101708519A Special fixture for processing plum blossom-shaped hole of double offset ring spanner
05/19/2010CN101282801B Method of manufacturing ring-shaped member
05/18/2010US7717021 Punch tool lift spindle
05/18/2010CA2420706C Tooling system
05/14/2010WO2010053897A1 Adjustable punch assemblies and associated adjustment methods
05/14/2010WO2010053895A1 Punch assemblies and methods for modifying
05/14/2010CA2742465A1 Punch assemblies and methods for modifying
05/14/2010CA2741868A1 Adjustable punch assemblies and associated adjustment methods
05/13/2010US20100116775 Multi-color printed and embossed lid for cream jars and method for producing such lids
05/13/2010US20100116014 Blank for metal can and method for producing metal can
05/12/2010EP2184118A1 Stepped stripper and method of removing sheet metal parts from punching machines
05/12/2010EP2184116A1 Method for discharging sheet metal from stamping machines
05/12/2010EP2183096A1 Drive system for hydraulic presses
05/12/2010EP1994589B1 Method and apparatus for continuous manufacture of battery grids
05/12/2010CN201466100U Special puncher for pole piece
05/12/2010CN201455094U Tray punching die capable of escaping from workpieces automatically
05/12/2010CN201455093U Double-side punching die
05/12/2010CN201455092U Square-tube perforator
05/12/2010CN201455091U Combined pneumatic perforating device
05/12/2010CN201455090U Pneumatic puncher
05/12/2010CN201455089U Reversible punching machine of convex die
05/12/2010CN201455088U punching machine
05/12/2010CN201455087U Punching die of support seat
05/12/2010CN201455038U Conducting wire crimping device
05/06/2010US20100107832 Adjustable punch assemblies and associated adjustment methods
05/06/2010DE202008017563U1 Blech, Verfahren und Werkzeug zur Herstellung von Blechen Plate, method and tool for the production of sheets
05/05/2010EP2181911A1 Heat formed component and method for manufacturing same
05/05/2010EP2181782A1 Die for cold-working a sheet made of high-tensile strength material, and related method for working said sheet
05/05/2010EP2180965A1 Multicolor printed and embossed lid for cream jars and method for producing such covers
05/05/2010CN201446717U Double-guide pillar hydraulic transmission mechanism used on tensile machine
05/05/2010CN201446716U Single-rod hydraulic transmission mechanism used on tensile machine
05/05/2010CN201446192U Manufacture device of matchboard
05/05/2010CN201446191U Box board manufacturing equipment
05/05/2010CN201446190U Flange punching die
05/05/2010CN201446189U Punching die capable of rapidly repairing and exchanging punch needles
05/05/2010CN201446188U Distance adjustable punching device
05/05/2010CN201446187U Manual hydraulic puncher
05/05/2010CN201446186U Punching riveting mold of a combination hinge connection slice
05/05/2010CN201446185U Molding device of square aluminum ceiling board
05/05/2010CN1702562B Image recording apparatus and method for use therewith
05/05/2010CN101701511A Sucker rod anti-tripping connecting device and manufacturing method thereof
05/05/2010CN101700552A Mold structure
05/05/2010CN101700551A Stop ring die
05/05/2010CN101700550A Multifunctional rotary shearing die
05/05/2010CA2643248A1 Multi function metal forming apparatus and method
04/2010
04/29/2010US20100104781 Method for Working a Tube Made from a Metallic Material, and Such a Tube
04/29/2010US20100101298 Dynamic Centering Fixture with Hydraulic Load Delivery Compensation
04/29/2010DE102008055688A1 Verfahren zum Bearbeiten eines Rohres aus einem metallischen Werkstoff sowie derartiges Rohr A method for processing a tube made of a metallic material and such a tube
04/28/2010CN201442059U Special die set for punching small holes on ultra-thin metal plates
04/28/2010CN201442058U Rolling turnover numerical control punch press
04/28/2010CN201442057U Press lathe-bed for turret punch press
04/28/2010CN201442056U Precise numerical control punch press
04/28/2010CN101698215A Multi-direction step-by-step tridimensional punching method of IML products and punching mould thereof
04/28/2010CN101698214A Fixed bead ring diameter-punching die
04/28/2010CN101698213A Notching device with separated stator and rotor
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