| Patents for B21D 9 - Bending tubes using mandrels or the like (1,513) |
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| 10/03/2012 | CN102699161A Workpiece rotating stamping die |
| 10/03/2012 | CN102699160A Device for bending metal pipes |
| 09/27/2012 | WO2012129345A1 Tube and pipe benders and methods of bending same |
| 09/26/2012 | EP2501503A1 Machine for bending tubular products and tube bending method |
| 09/26/2012 | CN202447457U Bend pipe forming machine |
| 09/26/2012 | CN102688920A Pipe bender and bending method using pipe bender |
| 09/19/2012 | CN202438581U Universal spindle with hard alloy head |
| 09/18/2012 | US8266942 Bending machine |
| 09/18/2012 | US8266939 Method for hydroforming and hydroformed product |
| 09/13/2012 | WO2012120989A1 Method for forming sheet material, sheet material forming apparatus, method for determining forming conditions for sheet material forming apparatus, and device for determining forming conditions for sheet material forming apparatus |
| 09/13/2012 | US20120231904 Controlling the stiffness of a hollow metal bat by providing helical internal ribs |
| 09/13/2012 | US20120227456 Machine For Bending Tubular Products and Tube Bending Machine |
| 09/12/2012 | CN202427832U Numerical-control heating bending die |
| 09/12/2012 | CN202427778U Hydraulic bending press |
| 09/12/2012 | CN202427777U Core shaft of pipe bender |
| 09/05/2012 | CN202411275U Pipe fitting clamping mechanism |
| 09/05/2012 | CN202411170U Vertical pipe bending machine |
| 08/29/2012 | EP2490833A1 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 |
| 08/29/2012 | CN202398680U Pneumatic pipe bending machine for small pipes |
| 08/29/2012 | CN202398679U Machine head rotating mechanism |
| 08/23/2012 | DE102011000845A1 Method for bending pipe, involves applying axial force only in peripheral portion of pipe ends at outer side of pipe, such that material is flowed into bending portion |
| 08/22/2012 | CN202387799U Tube bender |
| 08/22/2012 | CN102641926A Filling and recovering device for low-melting-point alloy |
| 08/21/2012 | US8245557 Press brake for bending sheets |
| 08/15/2012 | EP2282853B1 Supporting core and method for producing hollow profiled elements |
| 08/15/2012 | CN202377336U Static and dynamic body power source feeding mechanism for sand filling machine |
| 08/15/2012 | CN202377335U Tube bending machine |
| 08/15/2012 | CN202377334U Core head for producing 90-degree hot push elbow |
| 08/15/2012 | CN202377333U Gas heating device for bending steel pipe with thick wall |
| 08/15/2012 | CN102632150A Die for forming 120-degree V-shaped elongated groove on arc surface of aluminium tube |
| 08/09/2012 | DE202012005249U1 Schlagwerkzeug Impact tool |
| 08/08/2012 | CN202367020U Short and strength section bending device of thin walled tube |
| 08/08/2012 | CN102626745A Forming die of kidney-shaped hole on circular arc surface of aluminum pipe |
| 08/08/2012 | CN102626733A Pipe bending device of metal pipe with special-shaped cross section |
| 08/08/2012 | CN102626731A Bend simmering method of non-normalizing steel pipe |
| 08/07/2012 | US8234898 Bending assembly for extruded stock material |
| 08/01/2012 | CN102615191A Die for forming 90-degree V-shaped long groove on arc surface of aluminum pipe |
| 07/25/2012 | CN102601187A Soft mandrel inserting and extracting device and inserting and extracting method |
| 07/25/2012 | CN102601186A Precision control method of springback radius and springback angle for numerical control forming of bent pipe |
| 07/25/2012 | CN102049436B Method for determining diameter and lead of mandrel for NC (numerical control) bending of thick-wall pipe |
| 07/19/2012 | WO2012096392A1 Method and tool for bending titanium member |
| 07/18/2012 | EP2475474A2 Bending machine for bending elongated workpieces, in particular tubes and profiles |
| 07/18/2012 | CN202338755U 弯管机的喷油装置 Injection device bender |
| 07/18/2012 | CN102581092A Inner core die for bent pipe |
| 07/18/2012 | CN102581091A Flexible core mold for bending thin-wall rectangular tube |
| 07/17/2012 | US8220811 Arm material and a method for its manufacture |
| 07/17/2012 | US8220304 Machine for cambering, forming, folding or bending bars, wires or extruded shapes |
| 07/11/2012 | CN202316709U 毛细管卷绕机 Capillary winder |
| 07/11/2012 | CN102562693A Hydraulic system for bending oil cylinder of pipe bender |
| 07/10/2012 | US8215144 Repeatable bender angle apparatus |
| 07/04/2012 | CN202290919U 燃气总管模具 Gas mains mold |
| 07/04/2012 | CN202290918U 一种小弯曲半径的汽车保险杠成弧用芯子 An automotive bumper as small bending radius arc with the core |
| 07/04/2012 | CN202290917U 一种偏心型胎 One kind of eccentric tire |
| 07/04/2012 | CN102527848A Numerical-control heating bending die and forming method for large-diameter thin-wall pure titanium tube |
| 07/04/2012 | CN102527791A Main pipeline brake forming process and device of equipment in nuclear power station |
| 07/04/2012 | CN102527790A Pneumatic type pipe bender for small pipe fittings |
| 07/04/2012 | CN101269390B Hollow rack manufacturing method and manufacturing apparatus |
| 06/27/2012 | CN102513422A Central spindle of pipe bender |
| 06/20/2012 | CN102500667A Oil spraying device |
| 06/20/2012 | CN102500666A Pipe bending machine |
| 06/14/2012 | US20120144892 Hemming apparatus for door belt part of vehicle |
| 06/13/2012 | CN102489567A Core head for producing 90-degree hot push elbow |
| 06/07/2012 | US20120138185 Method and preprocessed tube for producing a tube with a bent progression or a bend embodied as a traverse progression |
| 05/30/2012 | CN202261892U Medium-frequency bent pipe heating equipment based on IGBT (Insulated Gate Bipolar Transistor) |
| 05/30/2012 | CN202239121U Three-head spindle for producing thin-wall bent pipe |
| 05/30/2012 | CN202239120U Pipe bender |
| 05/30/2012 | CN202239104U Bending roll structure of stretch bending straightening unit |
| 05/23/2012 | CN202224530U Pipe bending mould for bending insert pipes of ball screw assembly |
| 05/23/2012 | CN202224487U Sand-filling machine |
| 05/23/2012 | CN101947583B Core-pulling device on tube bender |
| 05/23/2012 | CN101128281B Reconfigurable tools and/or dies, reconfigurable inserts for tools and/or dies, and methods of use |
| 05/16/2012 | CN101524728B Method for molding expandable bellows |
| 05/02/2012 | CN102430626A Thin-wall equant (small)-radius elbow secondary forming device and secondary forming method thereof |
| 04/10/2012 | US8151423 Fastener installation tool |
| 04/04/2012 | CN202180121U 一种自动弯管机 An automatic pipe bending machine |
| 03/29/2012 | DE102010046181A1 Method for transforming steel cylindrical pipe body into pipe bend used for designing tower pipe during constructing axle for motor car, involves transforming preformed pipe body to pipe bend in plane and supplying pipe bend for processing |
| 03/22/2012 | US20120067103 Method of Forming a Drug-Eluting Medical Device |
| 03/21/2012 | CN202169297U 一种方管弯管模具 One kind of square tube bending die |
| 03/07/2012 | CN202155407U 弯管机及其中的成型装置 Bender and the molding apparatus |
| 02/29/2012 | CN202151647U 一种用于闭合容腔柔性成形的装置 An apparatus for forming a closed cavity for flexible |
| 02/29/2012 | CN202151646U 油管弯管模芯棒 Tubing mandrel bending mold |
| 02/21/2012 | US8117882 Multi-layer pipe and method for its manufacture |
| 02/15/2012 | CN102355962A Method of producing tailored tubes |
| 02/15/2012 | CN102350451A Bending roll structure for stretching-bending straightening machine set |
| 02/08/2012 | CN202137237U 一种薄壁不锈钢管小半径弯曲模具 One kind of thin-walled stainless steel tube of small radius bending mold |
| 02/02/2012 | WO2011153634A3 Device and method for forming bends in tubular work pieces |
| 02/02/2012 | US20120024647 Cylinder apparatus, method for manufacturing the same, and shock absorber |
| 02/01/2012 | CN102335686A Machine for bending and forming tee pipes |
| 01/25/2012 | CN202123135U Thermal push-bending device for pipes with equal diameter and equal wall thickness |
| 01/18/2012 | CN202114114U Combined mandrel for die pressing bending pipe |
| 01/18/2012 | CN202114113U Straight pipe fixing copper ball ring for exhaust manifold bending machine |
| 01/18/2012 | CN102319783A Heat-push bending method for producing pipe fittings with equal diameters and equal wall thicknesses |
| 01/18/2012 | CN102319782A Method for preparing cold-push bending elbow |
| 01/11/2012 | CN102310131A Multi-purpose bending machine |
| 01/05/2012 | US20120000267 Mandrel assembly for tube bending |
| 01/04/2012 | CN202097276U Bend forming die |
| 01/04/2012 | CN202097254U Three-shaft linkage arc bend extrusion molding device |
| 12/29/2011 | WO2011160224A1 Sectional metal pallet formed from corrigated metal tubes |
| 12/29/2011 | CA2801248A1 Sectional metal pallet formed from corrigated metal tubes |
| 12/28/2011 | CN202087653U 减轻变形的弯管芯棒 Reduce the bending deformation of the mandrel |