Patents for B21D 9 - Bending tubes using mandrels or the like (1,513)
12/2007
12/06/2007DE19614196B4 Verfahren und Vorrichtung zur Herstellung eines Rohres Method and apparatus for manufacturing a pipe
12/06/2007DE102006025746A1 Dornschaft-Wechselbiege-Werkzeug The mandrel shaft alternating bending tool
12/05/2007EP1862235A1 Mandrel for bending tool with varying bending direction
12/05/2007CN200984609Y Machine for reducing the diameter of tube end of steel cylinder
12/05/2007CN101081416A Tube bender and method of using same
12/04/2007US7302823 Gauge for pipe bending machine
11/2007
11/28/2007CN200981084Y Longitudinal corrugated pipe extruding device
11/28/2007CN200981083Y Metal bend drawing machine
11/07/2007CN200970614Y Anti-wrinkle mold for bending pipe
11/07/2007CN100346895C Method and device for bending stock tube
11/06/2007US7290422 Device for free three-dimensional profile forming
10/2007
10/31/2007CN200967072Y Cold bending core rod
10/24/2007CN200963654Y Bending die for pipe
10/24/2007CN101058708A Airplane engine heat exchanger guiding-tube bend filling and technique
10/23/2007US7284407 Reciprocating drive mechanism and press using the same
10/23/2007US7284404 Intake distributing device of a rivet-nut gun
10/18/2007DE102006018688A1 Verfahren zum Biegen von Flachrohren für Wärmeübertrager und gebogenes Flachrohr Method of bending flat tubes for heat exchangers and curved flat tube
10/17/2007CN101054506A Airplane engine fuel oil total pipe bend filling and technique
10/10/2007EP1841549A1 Controllable fluids in pipe bending
10/10/2007CN200957436Y Multifunctional rotary coiler
10/10/2007CN101049618A Method and equipment for machining bent pipe with small R
10/04/2007US20070227224 Variable curvature tube and draw die therefor
10/04/2007DE10023637B4 Teilbares Biegewerkzeug Divisible bending tool
09/2007
09/27/2007US20070220942 Method for producing a rotationally symmetrical, in particular cylindrical screening device
09/26/2007CN200951442Y Forming apparatus of pipe body production equipment
09/20/2007US20070216126 Methods of producing high-strength metal tubular bars possessing improved cold formability
09/11/2007US7266982 Hydroforming device and method
09/11/2007CA2506570C Nut-plate riveter
08/2007
08/23/2007US20070193327 Die and method for manufacturing core
08/16/2007DE19600176B4 Verfahren zum Betrieb einer Rohrbiegemaschine A method of operating a pipe bending machine
08/14/2007US7254982 Electrohydraulic pressing device and method for operating the same
08/14/2007US7254980 Gas supply tube and method of making same
08/07/2007CA2319901C Method and apparatus for forming bends in thermoplastic pipe
07/2007
07/31/2007CA2449886C Curling machine provided with an adjusting device for evenly winding elongated workpieces into spirals
07/25/2007EP1706228B1 Hot flow forming and bending method, and device for carrying out said method
07/18/2007CN2923088Y Multi-section moveable core for pipe-bending machine
07/11/2007CN1994610A Tube expanded pipe bender
07/03/2007US7237425 Hinge repair tool
06/2007
06/28/2007DE10246977B4 Vorrichtung zum 3D-Freiformbiegen von Profilen Device for 3D free-form bending of profiles
06/26/2007US7234338 Tubing bender and method
06/26/2007US7234333 Machine for bending rod-shaped or tubular workpieces
06/20/2007CN1985152A Method of manufacturing a curved measuring tube for a vibratory measurement sensor
06/19/2007US7231793 Warm hydro-forming device
06/13/2007CN1978086A Bent moulding base of eccentric structure
06/12/2007US7228607 Pneumatic hydraulic riveter
06/07/2007US20070128443 Method for altering the shape of a tube
06/06/2007DE102005058168A1 Sliding rail for bending machine has at least one tube end carrier brought against it to push tube end part way round tube
06/06/2007CN1319667C Tube bender and method of using same
05/2007
05/30/2007CN1970217A Method for preparing C-shaped arm
05/30/2007CN1970185A Bending and shaping method for hollow aluminum alloy extrusion section bar
05/29/2007US7222512 Method and device for bending a cylindrical tube or the like
05/23/2007CN1966285A Metal tube surface grain or pattern production method
05/22/2007US7219527 Mandrel for bending
05/18/2007WO2006116418A3 Setting tool
05/10/2007US20070101790 Clamp assembly for bend arm of tube bending machine
05/08/2007US7213438 Bending tool with adjustable workpiece abutment segments
05/08/2007CA2104826C Apparatus and method for forming and hydropiercing a tubular frame member
05/03/2007WO2007048893A1 Machine for cambering, forming, folding or bending bars, wires or extruded shapes and method using same
05/03/2007CA2625872A1 Machine for cambering, forming, folding or bending bars, wires or extruded shapes and method using same
05/02/2007CN2894886Y Metal pipe cold-bending machine
05/02/2007CN2894885Y Steel pipeline cold pipe bending machine mandrel
05/02/2007CN1954933A Equipment and method for manufacturing metal large diameter equal wall thickness slit elbow and expanding tube by thermal push
04/2007
04/25/2007CN1311927C Magnesium-alloy tube hot-bending method and equipment thereof
04/19/2007DE102005049101A1 Bending pipes, comprises filling the pipe with a liquid, cooling to below the solidification temperature, and then bending
04/18/2007CN1950159A Autofeed speed rivet tool
04/18/2007CN1947879A Equipment for extruding longitudinal corrugated pipe
04/05/2007US20070074559 Tool for working on tubes
03/2007
03/13/2007US7188498 Reconfigurable tools and/or dies, reconfigurable inserts for tools and/or dies, and methods of use
02/2007
02/21/2007CN1915552A Method for manufacturing bar section of stainless steel
02/15/2007WO2007018499A1 Apparatus and method for forming shaped parts
02/15/2007CA2616550A1 Apparatus and method for forming shaped parts
02/14/2007CN1911550A Shaping method of small curvature radius bend pipe
02/07/2007CN1909991A Hot flow forming and bending method, and device for carrying out said method
02/06/2007US7171835 Bending apparatus
02/06/2007US7171834 External sleeve assisted tube bending
01/2007
01/30/2007US7171282 Shell plating developing method, shell plating manufacturing method, computer program for teaching the methods, and image recording medium for teaching the methods
01/25/2007US20070017269 Device and method for bending pipe material
01/24/2007EP1745264A2 Production of a bent measuring tube for a vibration-type measuring sensor
01/23/2007US7165430 Method and apparatus for patterning of bore surfaces
01/18/2007WO2006071490A3 Reconfigurable dies/inserts and methods of use
01/10/2007CN2855579Y Apparatus for feeding and pushing raw material of pipe-bender
01/10/2007CN1891369A Thin-wall stainless steel elbow, and its processing method and special equipment
01/09/2007US7159432 Device for bending profiles by thinning a wall of the profile
01/02/2007US7155952 Device and method for forming piping components
12/2006
12/28/2006DE202006015856U1 Pipe bending machine comprises a bending head with a bending roller mounted on a motor-driven bending plate that can be pivoted about the central axis of the bending head
12/21/2006US20060283230 Tube bender and method of using same
12/13/2006EP1554066B1 Device for free three-dimensional profile forming
12/06/2006EP1727636A1 Method and apparatus for patterning of bore surfaces
12/05/2006US7143621 Guide support for a tube-bending machine
12/05/2006US7143618 Method of making pre-formed tubular members
11/2006
11/29/2006CN1286589C Method for correcting workpiece crosssection shape of pipe bended by pipe bending machine
11/28/2006US7140227 Pneumatically-operated repetition riveting tool
11/28/2006US7140225 Method of bending pipe and apparatus therefor
11/28/2006US7140224 Moderate temperature bending of magnesium alloy tubes
11/28/2006US7140217 Hydroform die tube holding assembly and method of making same
11/15/2006CN1861315A Formation process with dabber spacer ring
11/07/2006US7131313 Bending method and mandrel of multi-layered pipe
11/07/2006US7131312 Pipe bending apparatus and method
11/02/2006CA2605663A1 Setting tool
11/01/2006CN2832342Y Mandrel for manufacturing small curvature radius siphon die
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