| Patents for B21D 9 - Bending tubes using mandrels or the like (1,513) |
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| 05/22/2013 | CN101823091B Driving device for pipe bending arm in double-mold full-automatic pipe bender |
| 05/14/2013 | US8438894 Press brake for bending sheets |
| 05/08/2013 | CN202921721U Thin-wall small-bending-radius bent pipe processing device |
| 05/08/2013 | CN103084448A Small turning radius pipe-bending machine forming mechanism for forming of long steel pipe |
| 05/07/2013 | US8434339 Pressing device for bending |
| 05/01/2013 | EP2585379A1 Sectional metal pallet formed from corrigated metal tubes |
| 05/01/2013 | CN202910132U Die lifting device used for pipe-bending machine |
| 05/01/2013 | CN202910131U Bend pushing machine |
| 05/01/2013 | CN202910130U Soft mandril for guide pipe forming |
| 04/24/2013 | EP2583765A2 Method for manufacturing a pedal for a motor vehicle, and pedal obtained according to the manufacturing method |
| 04/24/2013 | CN202893921U Large-aperture thin-wall bent pipe forming equipment |
| 04/24/2013 | CN202893920U Bending pipe core rib used for pipeline bending pipe |
| 04/24/2013 | CN103056221A Flexible bending tube die of ball-and-socket joint structure |
| 04/24/2013 | CN103056204A Simple pipe-bending machine |
| 04/17/2013 | CN202877298U Computerized numerical control pipe bending machine |
| 04/10/2013 | CN202861075U Mandrel moving stamping limiting device |
| 04/03/2013 | CN103008419A Forming device and forming method for pipe with small bending radius |
| 03/28/2013 | DE102009025985B4 Biegedorn mit Ausrichtemitteln Mandrel with alignment means |
| 03/27/2013 | CN202824294U Full-automatic U-shaped tube cold-roll forming device |
| 03/27/2013 | CN102989850A Die elevating device applied to tube bending machine |
| 03/20/2013 | CN202803856U Pipe fitting bending fine adjustment device |
| 03/20/2013 | CN202803855U Metal bent head forming device |
| 03/20/2013 | CN102974670A Fusible alloy recycling and pipe wall adhesion removing method and device for pipe forming |
| 03/20/2013 | CN102974669A Fusible alloy recycling method and device for pipe forming |
| 03/20/2013 | CN102974668A Large bending machine |
| 03/20/2013 | CN102974667A Elbow rough machining device |
| 03/13/2013 | CN202779402U Aluminum pipe arc surface 120-degreesV-shaped long groove forming die |
| 03/13/2013 | CN202779401U Aluminum pipe arc surface 90-degree V-shaped long groove forming die |
| 03/13/2013 | CN202779326U Elbow rough-machining apparatus |
| 03/13/2013 | CN202779304U Hydraulic bending machine device |
| 03/13/2013 | CN102962361A Detachable electromagnetic induction heater for diameter-expanded bend-pushed large-diameter elbow |
| 03/13/2013 | CN102962304A Liquid filling shearing bending formation method for small bending radius rectangular tube |
| 03/06/2013 | EP2563534A1 Pipe bending machine |
| 02/27/2013 | CN202752411U Large-caliber double bend pushing device |
| 02/27/2013 | CN102947190A Sectional metal pallet formed from corrigated metal tubes |
| 02/20/2013 | CN202741524U Multi-radian bent pipe forming device |
| 02/19/2013 | US8375764 Pipe bender |
| 02/19/2013 | US8375761 Method for producing an internally or externally toothed cup-shaped sheet material component and corresponding device |
| 02/13/2013 | CN102921775A Tapered iron device for bending machine |
| 02/07/2013 | US20130031947 Apparatus and method of manufacturing a split link for use in a flexible tube-bending mandrel |
| 02/06/2013 | CN202715681U Inner supporting assistance device for numerical control bending forming of guide pipe |
| 02/06/2013 | CN102909287A Pipe fitting clamping mechanism |
| 02/03/2013 | CA2784468A1 An improved apparatus and method of manufacturing a split link for use in a flexible tube-bending mandrel |
| 01/30/2013 | CN102896187A Limiting device for movable stamping of core shaft |
| 01/29/2013 | US8359895 Machine cell with vacuum nest for holding a metal panel during a forming operation |
| 01/23/2013 | CN102886406A Soft mandrel for forming conduit |
| 01/23/2013 | CN102886391A Method for preparing small-aperture magnesium alloy pipe fitting |
| 01/16/2013 | CN102873150A Core insert mechanism used for cold roll forming of car doorframe |
| 01/16/2013 | CN102873149A Method for bending pipe |
| 01/16/2013 | CN102873148A Simple bending method of large-diameter thin-walled aluminum tube |
| 01/16/2013 | CN102228922B Method for bending and forming metal pipe by placing steel balls inside |
| 01/13/2013 | CA2782928A1 Pipe reel load simulator |
| 01/09/2013 | CN202655461U Rectangular tube brake forming die |
| 01/09/2013 | CN202655410U Internal bracing capsule for elbow pipe |
| 01/09/2013 | CN202655409U Novel one-way mandrel |
| 01/09/2013 | CN101927282B Heat exchanger bender |
| 01/08/2013 | US8347505 Method for fabricating a cylindrical spring by compressive force |
| 01/02/2013 | CN202639003U Rotating device for workpiece rotation stamping mould |
| 01/02/2013 | CN202639002U Mandrel of workpiece rotating stamping die |
| 01/02/2013 | CN102847765A Auxiliary mould for bent pipe forming and method for performing bent pipe bending forming by using auxiliary mould |
| 12/26/2012 | CN202621662U Automatic head gripping device of elbow continuous pushing forming machine |
| 12/26/2012 | CN202621661U Pipe pushing and conveying device for pipe bending machine |
| 12/26/2012 | CN102837159A Method using 0 chromium (Cr) 17 nickel (Ni) 4 copper (Cu) 4 niobium (Nb) thin wall square pipes to machine and manufacture linkage ring guide pipe parts |
| 12/26/2012 | CN102836905A Full-manual cold bend forming device for U-shaped tube |
| 12/26/2012 | CN102836904A Eccentric model tyre |
| 12/19/2012 | CN202606602U Elbow pipe bending device |
| 12/19/2012 | CN202606601U Vehicle throttle body water pipe local bending machine |
| 12/19/2012 | CN202606600U Rotary stamping die of workpieces |
| 12/19/2012 | CN202606599U Gear of workpiece revolution stamping die |
| 12/19/2012 | CN202606598U Bending device for metal pipe fitting |
| 12/04/2012 | US8322187 Bending device |
| 12/04/2012 | US8322185 Mandrel assembly for tube bending |
| 12/04/2012 | CA2534653C Vehicle frame having energy management system and method for making same |
| 11/28/2012 | CN202555653U Seamless constant-diameter elbow hot-pushing device |
| 11/28/2012 | CN202555638U Rotary shaft position detection mechanism for bending machine |
| 11/21/2012 | CN202540551U Loose core mechanism of elbow pipe |
| 11/21/2012 | CN202539308U Position limiting device of pipe bending machine mold mandrel |
| 11/21/2012 | CN202539307U Soft mandril insertion and extraction device |
| 11/21/2012 | CN202539306U Cavity aluminum profile vibrating sand-filling device |
| 11/21/2012 | CN202539305U Internal mandrel for bent pipe |
| 11/20/2012 | US8312629 Method of making a tubular support bar for a dashboard support |
| 11/14/2012 | CN202527539U Stamping and bending device |
| 11/14/2012 | CN101801557B Pipe bending machine with bending mandrel having a load bearing structure which is particularly resistant to working stresses |
| 11/07/2012 | CN202516903U Die for pipe bender |
| 10/31/2012 | CN202506706U Clamping device for large pipe bender |
| 10/30/2012 | US8297096 Method for hydroforming and hydroformed product |
| 10/24/2012 | CN202498116U Hydraulic pipe bender |
| 10/24/2012 | CN202498115U Crease preventing device for thin-wall stainless steel pipe bending |
| 10/24/2012 | CN102744304A Processing method of cavity cold-bending large-caliber thin-wall aluminum bent pipe |
| 10/23/2012 | US8293151 Triuranium disilicide nuclear fuel composition for use in light water reactors |
| 10/18/2012 | DE102012205855A1 Innendorn und Verfahren Inner mandrel and method |
| 10/17/2012 | CN102728674A Inner supporting device for assisting numerical control bend forming of conduit |
| 10/17/2012 | CN102049437B Bent pipe manufacturing equipment and using method thereof |
| 10/16/2012 | CA2747897C Using phase change expansion of a substance to perform work on a workpiece |
| 10/10/2012 | CN202479291U Curved flexible core mold |
| 10/04/2012 | US20120248765 Universal pipe connection and method |
| 10/03/2012 | CN202461235U Bending and molding device of round billet flow guide water jacket |
| 10/03/2012 | CN202461234U Elbow pushing and manufacturing machine |
| 10/03/2012 | CN102699163A Pipe bending process adopting internal supporting method and special internal supporting bag |
| 10/03/2012 | CN102699162A Gear of workpiece rotating stamping die |