| Patents for B21D 9 - Bending tubes using mandrels or the like (1,513) |
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| 12/21/2011 | CN102284575A 一种内高压橡皮囊管件推弯成形装置及其成形方法 An internal high-pressure rubber bag pipe Bending forming apparatus and method of forming |
| 12/21/2011 | CN102284574A 一种小弯曲半径的汽车保险杠成弧用芯子 An automobile bumper into a small bending radius arc with the core |
| 12/15/2011 | WO2011153634A2 Device and method for forming bends in tubular work pieces |
| 12/15/2011 | CA2801619A1 Device and method for forming bends in tubular work pieces |
| 12/14/2011 | CN202070623U 防弯管塌陷起皱的模具 Anti-wrinkle mold elbow collapse |
| 12/14/2011 | CN102274881A Induction-heating bending device for pipes with same diameters and same wall thicknesses |
| 12/14/2011 | CN101773958B 压缩机气缸进出口接管压形装置 Import and Export takeover pressure compressor cylinder-shaped device |
| 12/07/2011 | CN202061962U 热轧无缝钢管生产线轧管机入口台 Hot-rolled seamless pipe rolling mill production line entrance station |
| 12/07/2011 | CN102266886A 灌砂机 Filling sand |
| 12/06/2011 | US8069696 Method for producing a gear wheel |
| 11/23/2011 | CN202045226U Automatic opening and closing device for bearing component |
| 11/23/2011 | CN202045225U Device for processing thin-wall seamless elbow of stainless steel U-shaped tube |
| 11/23/2011 | CN102248047A Combined mandrel used for die-pressing of elbow tube and application method thereof |
| 11/23/2011 | CN102248046A Pipe bender and forming device therein |
| 11/23/2011 | CN101745574B Pipe bending device for over-long U-shaped pipes |
| 11/22/2011 | US8061172 Sheet metal bending machine and production line incorporating a machine of this type |
| 11/17/2011 | US20110277530 Fence Clip Installation Tool |
| 11/17/2011 | US20110277529 Method of profiling a tube of given length |
| 11/16/2011 | CN202037238U Bend pipe anti-crease mold for metal pipe |
| 11/16/2011 | CN101758125B Pipe coiling machine of vaporizer and pipe coiling method |
| 11/15/2011 | US8056386 Pin bending device |
| 11/10/2011 | WO2011139742A1 Pipe bending machine |
| 11/03/2011 | US20110265536 Supporting Core for Producing Hollow Profiled Elements |
| 11/02/2011 | CN202021249U Hydraulically-driven core-pulling punch-forming device for pipes |
| 11/02/2011 | CN202021248U Core rod for preparing metal pipe fittings |
| 11/02/2011 | CN202021247U Pipe bending machine |
| 11/02/2011 | CN102228922A Method for bending and forming metal pipe by placing steel balls inside |
| 10/27/2011 | US20110259075 Pipe Bending Machine |
| 10/26/2011 | EP1620215B1 Tube bender and method of using same |
| 10/19/2011 | CN102218461A Stretch-bending formation method of lower enclosing rib of rectangular hollow section gun turret |
| 10/18/2011 | US8037726 Method for bending tubular articles with a relative ratio of the bending radius and the outer diameter of the finished pipe which is less than 3 |
| 10/12/2011 | EP1280621B1 Method and apparatus for connecting a fastener element to a workpiece |
| 10/12/2011 | CN102215995A Improved method for manufacturing a bent heat exchanger |
| 10/12/2011 | CN101500723B Hand-held, portable, battery-powered hydraulic tool |
| 09/28/2011 | CN102198460A Device for machining thin-walled seamless elbow of stainless steel U-tube |
| 09/15/2011 | US20110221214 Impact absorbing member and a method for making same |
| 09/14/2011 | CN101428311B Bend pipe apparatus |
| 09/07/2011 | CN102172691A Thin-wall stainless steel tube small-radium bending process and mold |
| 09/07/2011 | CN102172690A Method for manufacturing bent pipe |
| 08/24/2011 | CN102161059A NC bending core head for thin walled tube of aluminum alloy with major diameter and design method thereof |
| 08/17/2011 | CN102151731A Novel supporting core for forming end angle column component of 380-kilometer motor vehicle |
| 08/12/2011 | CA2731452A1 Profiling arrangement for the longitudinal shaping of a metal band or starting profile into a profile or tube |
| 08/11/2011 | DE102010007501A1 Pipe stabilization device i.e. hydraulic bending arbor, for stabilization of bending portion of e.g. round pipe during bending operation for transformation of pipe, has end section including flexible hollow body containing pressurized fluid |
| 08/03/2011 | CN201913139U 一种新型自动弯管装置 A new automatic bending device |
| 07/21/2011 | DE102010005269A1 Heat exchanger tube, has wall structured in two leg regions, and bottom for connecting leg regions with each other, where wall is not structured in region of bottom, and bottom is connected with outer surfaces of leg regions without seams |
| 07/20/2011 | CN201900162U Spherical filler hydraulic compensator |
| 07/20/2011 | CN201900161U Core provided with compact core sections and used for arc processing of automobile bumper |
| 07/14/2011 | WO2011029594A3 Bending machine for bending elongated workpieces, in particular tubes and profiles |
| 07/06/2011 | CN101722221B Processing process of screw pipe bending machine |
| 06/29/2011 | CN201880768U Elbow pipe production unit |
| 06/29/2011 | CN101518798B Diameter-expanding and bend-pressing forming core head for short radius elbows |
| 06/15/2011 | CN201862671U Device for manufacturing curved pipe |
| 06/15/2011 | CN201862670U Movable joint mandril for manufacturing leisure chair made of thin-walled steel tube |
| 06/15/2011 | CN101722218B Forming device in pipe bender |
| 06/09/2011 | DE102008059507B4 Metallbearbeitungsmaschine mit Zuführvorrichtung für stabförmige Werkstücke Metal processing machine with feeder rod-shaped workpieces |
| 06/07/2011 | US7954354 Method of manufacturing containers |
| 06/01/2011 | CN101693269B Device for shaping special-shaped tube through bending |
| 06/01/2011 | CN101219450B Pipe-bending machine mandrel |
| 05/26/2011 | WO2011061599A1 Machine for bending tubular products and tube bending method |
| 05/24/2011 | US7946146 Hydroforming apparatus |
| 05/18/2011 | CN102059281A Trumpet connecting pipe bending press |
| 05/18/2011 | CN101422794B Unstability prevention component of pushing device of pipe bender |
| 05/18/2011 | CN101259495B Core rod device for tube bender |
| 05/11/2011 | CN102049437A Bent pipe manufacturing equipment and using method thereof |
| 05/11/2011 | CN102049436A Method for determining diameter and lead of mandrel for NC (numerical control) bending of thick-wall pipe |
| 05/04/2011 | CN201815578U Cold extruding mold core of metal bent pipe |
| 05/04/2011 | CN102039336A Core for arcing and processing of bumper |
| 04/28/2011 | WO2011049432A1 Method for producing a bent pipe comprising at least one desired curvature, a device suitable for carrying out such a method as well as a pipe produced by means of such a method |
| 04/28/2011 | DE102009050800A1 Bending mandrel for bending device for inserting bends into straight tubes, has expanding element with bodies distributed at periphery, where bodies rest against each other along contact plane running via axis of mandrel in resting position |
| 04/27/2011 | EP2203264B1 Method and device for forming a bar stock, bar stock |
| 04/21/2011 | US20110088443 Supporting Core for Producing Hollow Profiled Elements |
| 04/19/2011 | US7926317 Pressing machine, crank pressing machine, and vibration processing method in these machines |
| 04/14/2011 | DE102008003442B4 Dornanker für das Biegen von Rohren Spike anchors for bending pipes |
| 04/13/2011 | CN102015141A Supporting core for producing hollow profiled elements |
| 04/06/2011 | CN201783549U Hydraulic pipe bender |
| 03/30/2011 | CN201776326U Core-pulling device in pipe bender |
| 03/22/2011 | CA2616939C Pipe-bending machine mandrel |
| 03/16/2011 | CN201760480U Bidirectional die clamping device |
| 03/02/2011 | CN201752735U Die clamping apparatus of pipe bender |
| 03/02/2011 | CN201752730U Mandrel for machining small curvature radius 90-degree elbow |
| 02/23/2011 | CN201751033U Induction heater of bending pipe |
| 02/16/2011 | EP2282853A1 Supporting core for producing hollow profiled elements |
| 02/16/2011 | CN201744537U Bended pipe sand core of double-layer sleeve pipe |
| 02/16/2011 | CN201744536U Material-saving and environmentally-friendly molding device for front connecting pipe of muffler |
| 02/16/2011 | CN101524727B Method for improving smooth finish on inner wall of titanium alloy elbow piece formed by expanding push-bending method |
| 02/10/2011 | DE102009036307A1 Device for bending and holding pipes, cables and lines, has opening provided over entire length and designed in lockable manner, and locking element assigned to opening, where device is bendable and is fixable in desired position |
| 02/09/2011 | EP2281643A1 Assembly for bending tubular workpieces |
| 02/09/2011 | CN201735652U Bending machine of micro passage heat exchanger |
| 02/08/2011 | US7882718 Roll-former apparatus with rapid-adjust sweep box |
| 01/27/2011 | US20110016941 Arrangement for bending tubular workpieces |
| 01/19/2011 | CN201711399U Eccentric core print for numerical controlled bending of aluminum alloy large-diameter thin walled pipe |
| 01/19/2011 | CN101947584A Hydraulic compensator adopting spherical fillers |
| 01/19/2011 | CN101947583A Core-pulling device on tube bender |
| 01/19/2011 | CN101947582A Pipe bending method using pressurized soft core mould |
| 01/12/2011 | CN201702226U Anti-crease device on head of pipe bender |
| 01/12/2011 | CN201702225U Bent pipe fitting forming machine |
| 01/05/2011 | CN101934315A Hydraulic pipe bender |
| 12/30/2010 | DE102009025985A1 Biegedorn mit Ausrichtemitteln Mandrel with alignment means |
| 12/29/2010 | EP2266721A2 Mandrel with alignment means |
| 12/29/2010 | CN101927282A Heat exchanger bender |