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WO/2009/072918A1 |
Machine for bending aluminum and PVC profiles, according to the invention consists from a stand (10) with a vertically set motor reducer (7), and a horizontaly set motor reducer (21) and with at least two fans (11) for hot air directed t...
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WO/2009/051943A2 |
A cutoff unit for cutting a variably swept continuous beam extending from a roll forming mill includes a pickup subassembly for tracking a shape of the continuous beam, and a cutoff subassembly that engages and supports sides of the cont...
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WO/2009/043500A1 |
The invention relates to a method and device for forming a bar stock (1), wherein the bar stock (1) with a first diameter (3) is supplied first to a forming tool (2) circulating in the circumferential direction of the bar stock (1). Ther...
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WO/2009/040859A2 |
A pipe bending machine with bending mandrel having a load bearing structure which is particularly resistant to working stresses, comprises an extractor (2) which is fixed in a rear portion of the pipe bending machine, and mandrel rod (13...
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WO/2009/036871A1 |
The invention relates to an apparatus for bending profiles (4) with axle-free mini-roll rolling bodies (30, 31, 32, 60, 61, 70, 71), wherein rollers (13, 27, 29) which form a plurality of roller stations (11, 15, 16, 17) in a roller bend...
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WO/2008/144237A1 |
A bending apparatus consisting of a rocker rotating in a hybrid constructed saddle. The saddle is preferably made of a steel casing with a low friction liner disposed therein.
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WO/2008/098186A2 |
The pressures provided by several wheels or rollers (18, 20, 22, 24, 30, 32) on various members of a metal panel are controlled to produce a curved panel of desired radius with little or no distortion. Predetermined pressures are used to...
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WO/2008/096449A1 |
Bending processing of pipe (P) is carried out by holding the pipe (P) having mandrel (19) inserted therein between bending die (17) and pressing die (18). Lubricating oil is applied onto the outer circumferential surface of the pipe (P) ...
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WO/2008/093818A1 |
A bending method of pipe material which can positively prevent occurrence of cracking or creasing at the bend, or the like. Core bars (5) each having a protrusion of a quarter of sphere at the distal end are inserted into a pipe material...
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WO/2008/074698A1 |
The invention relates to a device for bending a metallic pipe by winding on a shape roller (1), comprising a mandrel adapted to be introduced in the pipe and a spreader (9) for avoiding the formation of folds on the lower surface of the ...
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WO/2008/061762A2 |
The invention relates to a device for clamping hollow profiles, for example for the purposes of bending, wherein a support mandrel is arranged on the end of a retainer bar within the hollow profile with a mounting rod for a support core ...
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WO/2008/025884A1 |
The invention relates to a tool for bending a pipe (6), which tool includes an operating device (16), a guide (14) and a moving slide (15) therein, two opposing dies (12, 13), installed on a different plane relative to the slide, one (13...
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WO/2008/003674A1 |
The invention relates to a device for bulge bending a hollow profile (6) made from metal, in particular from steel or a steel alloy, with two bending arms (2, 3) turning about a bending axis arranged on a bending plane (4) for holding th...
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WO/2007/048893A1 |
The invention concerns a machine for cambering, forming, folding or bending a bar, a wire or an extruded shape comprising a bending form (7, 21) provided with a clamping system, with a device for orienting the tube (1) and a bending jaw ...
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WO/2007/018499A1 |
An apparatus and method are provided for forming a shaped part from a tube (14) having an end and at least one bend, the shaped part having an enlarger portion between the bend and the end. The shaped part is formed by applying pressure ...
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WO/2006/067493A1 |
A method for shaping partially enclosed structures such as pipes, the method comprising: filling the structure with ERF, applying an electrical field to the ERF to increase its viscosity, shaping the structure, removing the field and rem...
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WO/2005/110637A1 |
A method for manufacturing a multi-walled pipe by inserting a second pipe (2) into a first pipe (1), bending the second pipe and expanding the first pipe into contact with the second pipe. The invention further relates to pipe bundles fo...
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WO/2005/108931A2 |
In order to produce a measuring tube, a solid shaped body (2), which is comprised of a first filling material (21) and of a second filling material (22) incorporated therein, and which stabilizes the cross-section of the discharge tube (...
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WO/2005/084857A1 |
An apparatus comprises a rotating member (2) having one or more rollers (10). The one or more rollers have a plurality of protuberances (12). The rollers may be advanced toward a surface (6) during rotation of the rotating member, such a...
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WO/2005/070581A1 |
Disclosed is a method for hot flow forming and bending closed, half-open, and open profiled members. Said method uses a bending machine comprising at least two rollers (17, 18) which are disposed across from each other in the feeding dir...
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WO/2005/061142A1 |
The invention relates to a method for producing a bent double-walled component (10), especially a double-walled pipe, comprising an inner pipe (11) and an outer pipe (12). The inner pipe is at a distance (d) from the outer pipe, creating...
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WO/2005/023448A1 |
A device and a method for bending a pipe material, wherein when an outer pipe (Po) is bent, the shape of the groove (m) of a pressing die (6) disposed immediately before a part to be bent which is positioned far from the part to be bent ...
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WO/2005/014195A1 |
The invention relates to a method and a device for bending and reshaping profiles by means of roller bending or matrix bending, the profile (20) that is to be bent or reshaped being bent or reshaped under the influence of one or several ...
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WO/2004/105975A1 |
A material tube (30) is bent at plural positions in its intermediate portion with both ends of the tube (30) tightly sealed with sealers (31, 32) and liquid filled in the tube (30). Pressure in the material tube (30) can be increased and...
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WO/2004/103600A1 |
A method and an apparatus for manufacturing a multiple tube capable of providing the tube having a bent part with excellent appearance at low cost and preventing an inner tube or an outer tube from being deformed at the bent part at whic...
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WO/2004/062836A2 |
The present invention discloses a hydroforming process for metal parts that uses liquid-film and solid-film lubricants. The lubricants used in the invention are particularly useful for die-side lubrication. The process includes a step in...
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WO/2004/035241A2 |
The invention relates to a device for free three-dimensional profile forming, said profile having any overall dimensions but remaining constant with respect to the length thereon, especially for hollow profile. The inventive three-dimens...
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WO/2004/035244A1 |
A tube bender, comprising a mandrel, a forming member connected to the mandrel for coaction with the mandrel to effectuate at least 180 degree bending of a tube wherein the forming member has at least two bending positions defined thereo...
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WO/2004/012879A2 |
Tube bending/crimpring apparatus (11) has a frame, a toggle assembly (16) and a carriage assembly (15). The toggle assembly has overlapping male dies (82, 83, 84) with tapering working tips that form a self-centering wedge. The carriage ...
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WO/2004/000479A1 |
The invention relates to a guide support for a tube-bending machine (1), comprising a baseframe (2), a bending head (3), a bending arm (4), a bending roller (9), a locking jaw (12) for bending of a tube (5) and sliding means (15, 16) for...
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WO/2003/099483A1 |
The invention relates to a device that is used to drive and support a tube (10) that is to be bent in relation to a bending head (3) which is disposed at the end of the frame (2) of a bending machine (1). Said device comprises: a guide s...
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WO/2003/082491A1 |
The invention relates to a profile roller bending machine comprising receiving, delivering, and bending units for profiles and circular pipes that are to be bent. The bending head (1) of the profile bending machine essentially comprises ...
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WO/2003/013755A1 |
The invention concerns methods and devices for bending a cylindrical tube or the like (1) so as to obtain two consecutive sections (2, 3) of said tube forming between them a non-null angle $g(a). The method is essentially characterised i...
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WO/2003/002280A1 |
The invention relates to a method and a device for determining the spatial geometry of a curved extruding profile which is held in the area extending along the first linear central axis (A) of the extruded profile in a feeder unit and fi...
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WO/2002/094469A1 |
The invention relates to a device and method for bending a tube (72) with which the tube (72) is guided through a bending tool (71) that rotates around a profile guide housing (81, 82) and around an eccentric unit formed by two tubes (83...
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WO/2002/094468A1 |
The invention relates to a tool for tube or profile bending machines. At least the surface touching the tube (1) or profile is coated with a layer of molybdenum or molybdenum alloy, enabling the service life of said tool to be significan...
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WO/2002/094470A1 |
The invention relates to a device and a method for bending a tube (32), wherein said tube (32) is guided through a bending tool (31), which rotates about a hollow profile guide housing (41, 42) and an eccentric unit, which is formed by t...
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WO/2002/070162A1 |
A bending method for non-circular tube capable of bending a tube body with non-circular section at the minimum curvature without undue force, comprising the steps of inserting a mandrel (core) into the tube body from one end thereof, fix...
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WO/2001/083130A1 |
The invention relates to a bending device for thin-walled metal pipes (R), comprising a straight pipe guiding device (1), and a contiguous core template (2) that can be swiveled with respect to the pipe guiding device (1) and that compri...
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WO/2001/070426A2 |
The invention relates to the use of pipes consisting of titanium zinc conforming to EN 988 and to a method for bending pipes with a diameter of between 50 and 200 mm and an initial thickness of between 0.65 and 1.2 mm that consist of tit...
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WO/2000/076683A1 |
The invention relates to a bending block for a bending device and to a bending method for tubes, especially tubes that have a large diameter-wall strength ratio and are to be bent with a small radius, e.g. in the order of the diameter of...
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WO/2000/067931A1 |
A method of forming a hollow workpiece (40) particularly made of metal in which the workpiece is placed between at least two parts (32, 33) of a die set; the parts are closed together so that the workpiece conforms approximately to the s...
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WO/2000/048762A1 |
Process for deforming a piece of thin-walled metal tube, comprising the operations of bending the piece of tube with respect to its original axis, in which process the wall of the piece of tube is firstly provided, at least at the locati...
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WO/2000/043143A1 |
A bending method for pipe material using a conventional device such as press device, wherein, in order to prevent wall thinning and cracks, one side of a cylindrical pipe material (1) is firmly held by a first clamp (2) with the other si...
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WO/1999/064180A1 |
A method for forming at least one bend in a double pipe is disclosed. The double pipe comprises an inner pipe located within an outer pipe. The method essentially comprises the following steps. In a first step, the inner pipe (10) is fil...
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WO/1999/007540A1 |
The invention relates to a process and a device for bending closed hollow sections. Said hollow sections are impinged upon by internal pressure. At the same time, the section being bent is supported on the inside by one or several mandre...
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WO/1998/048957A1 |
The invention relates to a method and multistation device for folding profiles. The folding stations (1, 11, 15, 16, 17) required are modules mounted interchangeable and adjustable on a common machine body (2), which permits quick and si...
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WO/1998/043777A1 |
Method and apparatus for producing a predetermined curvature in the flange (25a) and web of a structural member (25) including an indexing mechanism (45) and method for controlling the amount of curvature produced.
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WO/1998/022237A1 |
The invention relates to a bending mandrel (5, 6) for bending tubes, comprising a main part (8, 9) movable at most in the axial direction of the tubes and an element (12) connected to the main part for pivoting in at least one plane, whe...
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WO/1997/039845A1 |
The invention relates to a core winding roll bending process of hollow sections and the corresponding machine. Said process provides that the hollow section filled internally at least partially by a mandrel and clamped into the fixing po...
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