| Patents for B21D 28 - Shaping by press-cutting; Perforating (12,707) |
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| 02/09/2011 | CN201735666U Steel cutting off machine |
| 02/09/2011 | CN1703289B Techniques for designing and manufacturing precision-folded, high strength, fatigue-resistant structures and sheet therefor |
| 02/09/2011 | CN101966651A Self-graduation punching combined scheme and device |
| 02/09/2011 | CN101966542A Thinning drawn punching process and die |
| 02/09/2011 | CN101966541A Reinforcing structure of punching die for diaphragm spring |
| 02/09/2011 | CN101549380B Resilience control method for moulding top surface of car roof |
| 02/02/2011 | EP2279808A1 Method and apparatus for producing rotor and stator metal sheets |
| 02/02/2011 | CN201728283U Die for punching and trimming flexible-connection copper strip |
| 02/02/2011 | CN201728275U Tank rim hole punching tool of transformer oil tank |
| 02/02/2011 | CN201728274U Stamping die capable of preventing wastes from jumping outwards via punched holes |
| 02/02/2011 | CN201728273U Multi-angle punching mold |
| 02/02/2011 | CN201728272U Combined die for punching plastic template steel frame |
| 02/02/2011 | CN201728271U Flanging and punching die |
| 02/02/2011 | CN201728270U Adjustable punching die |
| 02/02/2011 | CN201728269U Controllable punching die |
| 02/02/2011 | CN201728268U Improvement on punch pin structure of tooth-pulling hole of hardware stamping part |
| 02/02/2011 | CN201728267U Anti-swinging and anti-bouncing device used for full circle stator stamping punching splitting die |
| 02/02/2011 | CN201728266U Scrapless blanking die for guard plates with different widths or lengths |
| 02/02/2011 | CN201728265U All aluminum water chamber edge trimming mold for air conditioners |
| 02/02/2011 | CN201728264U Electric meter box body and front frame blanking-angle die |
| 02/02/2011 | CN201728263U Pressing device of piston ring trimming machine |
| 02/02/2011 | CN201728262U Die synchronous cutting machine |
| 02/02/2011 | CN101965393A Lubricant composition for fine blanking |
| 02/02/2011 | CN101961749A Punching device for loudspeaker magnetic conduction slice |
| 02/02/2011 | CN101961748A Isometric hole drilling device |
| 02/02/2011 | CN101569986B Machining process of jewel base |
| 02/01/2011 | US7878039 Channel letter machine and method thereof |
| 01/27/2011 | DE102008048991B4 Tränenblech aus Metall mit einer Vielzahl an erhöhten Tränenmustern zur Verbesserung der Rutschfestigkeit, Verfahren und Einzelhubwerkzeug zur Herstellung vonn Tränenblechen Tear sheet of metal with a variety of patterns increased tears to improve the skid resistance, procedures and Einzelhubwerkzeug for producing Vonn tear sheets |
| 01/26/2011 | EP2081707B1 Tool and machine tool for working plate-like workpieces, in particular metal sheets |
| 01/26/2011 | CN201720903U Punching die |
| 01/26/2011 | CN201720378U Mould for processing gear ring blank |
| 01/26/2011 | CN201720362U Full-automatic pack buckle forming machine |
| 01/26/2011 | CN201720346U Stamping device for manufacturing steel seamless gas cylinder |
| 01/26/2011 | CN201720319U Die used for processing dead head profiled hole of revolving door |
| 01/26/2011 | CN201720318U Improved punch needle shaft |
| 01/26/2011 | CN201720317U Punching device for door frame guide rail of automobile |
| 01/26/2011 | CN201720316U Mould for processing gear ring blanks |
| 01/26/2011 | CN201720315U Mould for processing gear ring blanks |
| 01/26/2011 | CN201720314U Thick plate-punching mechanism for enhancing strength of punch |
| 01/26/2011 | CN201720313U Lower mold fixed type full-circumference lateral cutting structure |
| 01/26/2011 | CN201720312U Trimming die for crankshafts |
| 01/26/2011 | CN201720311U Automobile door bumper punching die |
| 01/26/2011 | CN201720310U Punching die of automobile shift level |
| 01/26/2011 | CN201720309U Rotary depositing, clamping and installing device |
| 01/26/2011 | CN201720308U Stamping device for drying sheet metal |
| 01/26/2011 | CN101954404A Die device in section punching machine |
| 01/26/2011 | CN101954403A Method for producing rotor sheet and stator sheet |
| 01/26/2011 | CN101954402A Reinforcement component punching device and a reinforcement component sticking system using the same |
| 01/26/2011 | CN101648239B Slotting master mould of shockproof antiseep folding type self-plugging rivet |
| 01/26/2011 | CN101376147B Method for forming parts |
| 01/25/2011 | CA2610279C Tool fastening device for a wedge drive |
| 01/20/2011 | US20110014039 Turbine with axial discontinuity |
| 01/19/2011 | CN201716222U Sample preparation die for unidirectional tensile test of sheet metal |
| 01/19/2011 | CN201711773U Clamp mechanism used for positioning arc plate |
| 01/19/2011 | CN201711433U LCD connecting terminal stamping die set |
| 01/19/2011 | CN201711424U Hoisting wedge with drive block and sliding block both mounted on top |
| 01/19/2011 | CN201711419U Side punching die for cover plate at the front end of heavy truck dashboard |
| 01/19/2011 | CN201711418U Cold working die module |
| 01/19/2011 | CN201711417U Punching die of punching machine |
| 01/19/2011 | CN201711416U U-shaped steel numerical control hydraulic three-surface punching device |
| 01/19/2011 | CN201711415U Novel manual punching machine for stainless steel square tube |
| 01/19/2011 | CN201711414U Thin plate blanking and piercing device on automobile welding fixture |
| 01/19/2011 | CN201711413U Hole punching machine |
| 01/19/2011 | CN201711412U Groove forming device |
| 01/19/2011 | CN201711411U Watchband-shaped contactor punching die |
| 01/19/2011 | CN201711410U Blanking cutter for blanking bearing retainer |
| 01/19/2011 | CN101947599A Method and device for double eccentrically punching |
| 01/19/2011 | CN101947598A Longitudinal cutting mould pressing mechanism |
| 01/19/2011 | CN101474653B Machine tool for punching hole on side position of U section steel |
| 01/19/2011 | CN101176899B Preparing technique of back-up ring |
| 01/19/2011 | CN101107086B Pressing mechine, pressing method, and punched article |
| 01/18/2011 | US7870931 Sound-absorbing insulation element with strengthening embossments |
| 01/13/2011 | DE102009032739A1 Machine tool i.e. punching machine, has control unit for controlling current drain and/or current supply from and/or into direct current circuit based on filling level of energy storage and by direct current voltage of inverter |
| 01/13/2011 | DE102008046776B4 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 |
| 01/12/2011 | EP1937426B1 Multipart punch for hydro piercing |
| 01/12/2011 | CN201702267U Composite drawing die used for punching plates |
| 01/12/2011 | CN201702250U Combined type oil press of rack commonly used by punching and drawing |
| 01/12/2011 | CN201702249U Three-punch pressing punching slider |
| 01/12/2011 | CN201702248U Punching die of retainer cover |
| 01/12/2011 | CN201702247U Punch for punching metal sheet threaded bottom hole |
| 01/12/2011 | CN201702246U Porous punching mold |
| 01/12/2011 | CN201702245U Swing arm punching device for bending piece |
| 01/12/2011 | CN201702244U Punching die device |
| 01/12/2011 | CN201702243U Copper bar punching mold |
| 01/12/2011 | CN201702242U Double-oil-cylinder numerical control busbar punching machine |
| 01/12/2011 | CN201702241U Axe punching device |
| 01/12/2011 | CN201702240U Bus flat end surface shearing die |
| 01/12/2011 | CN201702239U Cutting edge concave-convex mold for automobile bumper blank |
| 01/12/2011 | CN201702238U Cutting edge structure of blanking mold |
| 01/12/2011 | CN201702237U Punching die for digital control bus punching machine |
| 01/12/2011 | CN101175587B Sheet material bend offset tool and method for forming the same |
| 01/11/2011 | CA2475250C Apparatus for cutting and nibbling a sheet metal in coil form |
| 01/06/2011 | WO2011001762A1 Burr removing method and device |
| 01/06/2011 | WO2011000907A1 Hydraulic press unit |
| 01/06/2011 | WO2011000005A1 Method for producing embossed blanks |
| 01/06/2011 | US20110000349 Hydraulic fine blanking head for a press and method of its infeed |
| 01/05/2011 | EP2268428A1 Locking system for a rotatable part |
| 01/05/2011 | DE112008003280T5 Stanzer Punches |
| 01/05/2011 | DE102009037663A1 Method for producing lock for e.g. side doors of motor vehicle, involves combinely piercing or cutting individual parts so that connection of parts is maintained after piercing or cutting over preset breaking point or disconnection point |
| 01/05/2011 | CN201699081U Pole piece automatic molding machine |