EP1494827B1 - Dispositif de deformation plastique de pieces a usiner - Google Patents

Dispositif de deformation plastique de pieces a usiner Download PDF

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Publication number
EP1494827B1
EP1494827B1 EP03712027A EP03712027A EP1494827B1 EP 1494827 B1 EP1494827 B1 EP 1494827B1 EP 03712027 A EP03712027 A EP 03712027A EP 03712027 A EP03712027 A EP 03712027A EP 1494827 B1 EP1494827 B1 EP 1494827B1
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EP
European Patent Office
Prior art keywords
unit
forming unit
piston
prestressing
cylinder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03712027A
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German (de)
English (en)
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EP1494827A1 (fr
Inventor
Gerd Berghaus
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Voss Fluid GmbH
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Voss Fluid GmbH
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Publication of EP1494827A1 publication Critical patent/EP1494827A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D17/00—Forming single grooves in sheet metal or tubular or hollow articles
    • B21D17/02—Forming single grooves in sheet metal or tubular or hollow articles by pressing
    • B21D17/025—Forming single grooves in sheet metal or tubular or hollow articles by pressing by pressing tubes axially

Definitions

  • the present invention relates to a device for deforming workpieces, in particular for the plastic forming of pipe ends, with a pressure-actuated by a fluid forming unit and arranged on a common longitudinal axis actuated by the pressure of a fluid biasing unit and with conical, by means of the biasing unit tensionable clamping elements, wherein in the forming unit and in the biasing unit in each case at least one separate pressure chamber is formed, which is pressurizable independently of the pressure chamber of the respective other unit.
  • a device for the plastic forming of tube ends is known, which is a combination of the above-described forming devices, ie a system with arranged at 90 ° to the forming cylinder separate clamping cylinder and conical jaws.
  • the tube is biased with little force over the clamping cylinder.
  • the preload force is then amplified at the initiation of the forming process via cylinder and the cone system.
  • the disadvantage is that during the forming process, the full forming force on the biasing cylinder back, yes is even amplified over a very flat running cone angle by a multiple.
  • the entire clamping system must therefore be designed for very high forces despite the low biasing force, which leads to high weight, large installation space and high costs.
  • DE 195 11 447 A1 describes a device of the type mentioned for forming the end portion of a tube for use in screw.
  • forming and biasing cylinders are arranged coaxially with each other.
  • the preloading piston is designed as an annular piston and sits on the piston rod of the forming piston.
  • the tube is preloaded via the preload piston and conical jaws.
  • the clamping force is amplified by the introduced force of the forming piston.
  • the interlocking pistons and the surrounding housing parts must be exactly aligned with each other to ensure function and tightness of the machine. Therefore, the design manufacturing technology is very complicated and expensive.
  • the rear, conical housing part must be completely removed for tool change.
  • the forming device described in these documents corresponds in basic construction of the device described in DE 195 11 447 A1.
  • a device for forming an end region of a workpiece, in particular for cold-press forming a Rohrend Schemes, described, wherein a first hydrodynamically actuated force transmission element for clamping the workpiece and a second hydrodynamically actuated force transmission element, by the force of which the deformation is achieved, are provided.
  • the power transmission elements are coaxially guided and arranged in one and the same housing.
  • a first pressure chamber connected to a first pressure connection is arranged between the first force transmission element and the second force transmission element, while a second pressure space connected to a second pressure connection is assigned to the second force transmission element such that the introduction of a pressure medium acts on the second force transmission element in the tensioning and deformation direction ,
  • the pressure of the enclosed in the first pressure chamber pressure medium is maintained by blocking the first pressure port and released on reaching a preset pressure, the pressure medium from the first pressure chamber, so that in standing in the clamping position of the first power transmission element second power transmission element for forming the workpiece relative to the first force transmission element is displaceable, and - after the forming of the end portion of the workpiece by re-introducing pressure medium into the first pressure chamber, the second power transmission element and then by means of a separate drive the first power transmission element are moved back to their original positions.
  • the known device shows thus also respectively the features of the preamble of claim 1 and 17.
  • the biasing piston is designed as an annular piston and is seated on the piston rod of the forming.
  • the tube is biased by the biasing piston and the conical jaws, wherein during the forming process, the clamping force is amplified by the introduced force of the forming piston.
  • the interlocking pistons and the surrounding housing parts must be exactly aligned with each other to ensure function and tightness of the machine. Therefore, the design manufacturing technology is very complicated and expensive. Summarized thus result in the same disadvantages, such as high manufacturing complexity, complex tool changes and correspondingly long tool change times and the impossibility to take an optical monitoring of the forming process, as in the two devices mentioned above.
  • a pressure relief valve designed as a pressure relief valve must be provided therein.
  • the present invention has for its object to provide a device for deforming workpieces, in particular for the plastic forming of pipe ends, of the type mentioned, which is characterized by high functionality, compact dimensions and low weight by a reduced equipment and manufacturing effort. Furthermore, the device according to the invention should also have an increased user-friendliness by allowing a simple and rapid tool change as well as an optical monitoring of the forming process by the operator.
  • the technical solution according to the invention can also be expressed so that in a device of the generic type that the forming unit and the bias unit as separate units on the common
  • the longitudinal axis are arranged one behind the other, wherein both the forming unit and the biasing unit, each comprising a cylinder and a piston movable therein with full-area cross-section and wherein on the one hand the cylinder of the forming unit with the cylinder or the piston of the biasing unit and on the other hand arranged with a transversely to the longitudinal axis , Jochplatte cooperating with the clamping elements is rigidly connected to a first main assembly.
  • both the forming unit and the biasing unit can be formed from commercially available pneumatic or in particular double or single-acting hydraulic cylinders.
  • the entire bias unit must be designed advantageously only for small forces (low pressure), therefore, the entire device according to the invention can be manufactured with comparatively compact dimensions and low weight.
  • the device of the invention allows a structural design that does not require disassembly of (pressure-bearing) housing parts for the purpose of tool change and also provides a very good accessibility to the tool room.
  • forming tools, such as clamping elements or compression heads can be fixed very quickly solvable by being inserted, for example, from above accessible guide grooves and held there by their own weight.
  • the device according to the invention can be produced in a closed or open design, the latter allowing optical monitoring of the forming process by the operator.
  • a device for deforming workpieces, in particular for the plastic deformation of pipe ends, has a forming unit U actuated by the pressure p2 of a fluid and a pressure actuated by the pressure p1 of a fluid arranged on a common longitudinal axis XX Bias unit V on.
  • the forming unit U is formed of a particular double-acting cylinder 1 and a piston 2 axially movable therein.
  • the biasing unit V is formed of a particular single-acting cylinder 3 and a piston 4 axially movable therein.
  • both pressure chambers D1, D2 - of the forming unit U and the biasing unit V have in transverse to the longitudinal axis XX extending cross section a full-surface, preferably a circular shape.
  • Full surface is understood to mean that the surface is not formed annular or frame-like or is interrupted by "holes”.
  • the forming unit U and the biasing unit V are closed by at least one transverse to the longitudinal axis X-X extending wall (in detail by the rear wall 1a of the cylinder 1 of the forming unit U and the rear wall 3a of the cylinder 3 of the biasing unit V walls) against each other.
  • the forming unit U and the biasing unit V are therefore formed on the one hand as interconnected, but on the other hand, as completely closed against each other units.
  • the device according to the invention consists essentially of three main assemblies, which are moved relative to each other during the forming process parallel to the longitudinal axis X-X.
  • FIG. 1 (as well as FIGS. 5a to 5d) components which belong to a main assembly are each provided with the same hatching.
  • the first, stationary in the present example, main assembly consists of the cylinders 1, 3 of forming unit U and bias unit V and a transverse to the longitudinal axis X-X arranged yoke plate 5, all of which are rigidly interconnected.
  • Parallel to the longitudinal axis X-X tie rods 6a are arranged, which serve to form the rigid connection and for transmitting power between the cylinder 1 of the forming unit U and the yoke plate 5.
  • In the yoke plate 5 is a coaxial with the cylinder 1 of the forming unit U arranged bore 5a, which tapers conically from the forming unit U leading.
  • the driver plate 8 is a coaxial with the cylinder 1 of the forming unit U arranged (unspecified) bore, in which the piston 2 of the forming unit U, in particular with its piston rod 2a, is guided.
  • a stepped recess 9a which is open as a fastening means for inserting the clamping elements upwards.
  • Tie rods 6b are again arranged parallel to the longitudinal axis XX and serve to form the rigid connection and to transmit power between the piston 4 of the biasing unit V and the two plates 8, 9.
  • the third main assembly consists only of the piston 2 of the forming unit U.
  • a tool set which consists of a compression head 10 (Fig. 2) and at least one clamping element 11 (Fig. 4).
  • a tube end 12 has been selected by way of example, which has the bead contour 12a shown in FIG. With the device according to the invention, however, any desired axially compressible pipe contour can be produced.
  • the compression head 10 includes on one side a recess 10a, mating contour of the pipe contour to be formed 12a, and on the opposite side a connection option 10b to the piston 2 of the forming unit - in the present case, a T-slot.
  • the forming unit U in particular a free end of the piston rod 2 a of the piston 2, also correspondingly has fastening means 2 b for the detachable fastening of the compression head 10.
  • the clamping element 11 is formed by clamping jaws 11a, which consist of several, preferably four, annularly arranged segments. These are usually guided over cylindrical pins 11b and held in an open position via compression springs 11c in the unloaded state. They cooperate with the conical surface of the opening 5a in the yoke plate 5 and also have a conical design Outer surfaces 11d. With their usually slightly roughened or toothed inside 11e press the jaws 11a when clamping on the pipe 12th
  • the tools (upset head 10, clamping jaws 11a) can be inserted from above into the corresponding receptacles 2b, 9a, with good accessibility is given to the tool room. Disassembly of device components for tool change is not required.
  • Fig. 5b shows the insertion position for the workpiece. From the end position shown in Fig. 5a, the entire second main assembly moves under the action of the fluid pressure p1 in the pressure chamber D2 parallel to the longitudinal axis X-X by an amount X relative to the first (stationary) main assembly (in the drawing to the right). About the driver plate 8 while the piston 2 is located in the pressureless circulation forming unit U taken. The clamping jaws 11a are still slightly open in the insertion position, so that the tube 12 can be guided cleanly during insertion until it comes to a stop (unspecified) contact surface in the recess 10a at the end face 10 to the stop.
  • All previously described movements of the second main assembly can be driven at a suitable choice of the piston surfaces of the piston 2, 4 at the same pressure level as the forming unit U.
  • the biasing unit V can also be driven in the low pressure range.
  • the per se known forming process (Fig. 5d), in which under an axial process of the piston 2 by the amount Z on the tube 12 in a conventional manner, the bead 12a is formed on the pressure p2 of the fluid to the piston 2 of the Forming unit U initiated and requires high forces.
  • the forming unit U is therefore preferably designed for the high-pressure area.
  • the biasing unit becomes V and the second main assembly is not additionally burdened by the high forming forces and can therefore be dimensioned in their entirety for low forces, advantageously by a low pressure design.
  • the conical design of the clamping elements causes the prestressing force introduced via the pretensioning unit V to be further reinforced during tube forming, there is no repercussion of the forming force on the pretensioning unit V, as in the device known from DE 100 40 595 A1 occurs.
  • the tool change position (FIG. 5 a) is approached again, and this can be done under the effect of a fluidic back pressure p 3 in the pressure chamber D 1 of the forming unit U.
  • a fluidic back pressure p 3 in the pressure chamber D 1 of the forming unit U.
  • the invention is not limited to the illustrated embodiment, but also includes all the same in the context of the invention embodiments.
  • a kinematic reversal is possible in the sense that the biasing second main assembly is fixed and stationary and serves as a machine frame or is attached to a machine frame.
  • the first main assembly with the yoke plate 5 is moved axially, which has the advantage that the tube 12 is not moved after reaching the axial pipe stop position. (In the variant described above, the tube 12 is moved by the amount Y during clamping.)
  • the device according to the invention can also be designed with the same high functionality with a pretensioning unit V rotated by 180 °.
  • the rear wall 3a of the cylinder 3 of the biasing unit V is then applied to the adapter plate or may itself be formed as an adapter part 7, and the piston 4 is coupled to the rear wall 1a of the cylinder 1 of the forming unit U.
  • a housing with connecting plates could also be constructed instead of the open housing constructed with the tie rods 6a, 6b or, as in the case of the known annular piston systems, a rotationally symmetrical, tubular housing could be designed.

Claims (21)

  1. Dispositif de façonnage de pièces d'oeuvre, en particulier pour la déformation plastique d'extrémités de tuyaux (12), avec une unité de déformation (U) actionnée par la pression (p2, p3) d'un fluide et avec une unité de précontrainte (V) actionnée par la pression (p1) d'un fluide et disposée sur un axe longitudinal commun (X-X) ainsi qu'avec des éléments de serrage (11) de structure conique pouvant être serrés au moyen de l'unité de précontrainte (V), dans lequel il est formé dans l'unité de déformation (U) et dans l'unité de précontrainte (V) respectivement au moins une chambre de pression séparée (D1, D2) à laquelle une pression peut être appliquée indépendamment de la chambre de pression (D2, D1) de l'autre unité (V, U) respective, caractérisé en ce que au moins une paroi (1a, 3a) s'étendant perpendiculairement à l'axe longitudinal (X-X) est disposée entre l'unité de déformation (U) et l'unité de précontrainte (V), laquelle paroi relie l'unité de déformation (U) et l'unité de précontrainte (V) l'une à l'autre sous la forme de sous-ensembles et les isole également complètement l'une de l'autre.
  2. Dispositif selon la revendication 1, caractérisé en ce que les deux chambres de pression (D1, D2) de l'unité de déformation (U) et de l'unité de précontrainte (V) présentent dans la section transversale qui s'étend perpendiculairement à l'axe longitudinal (X-X) une forme pleine, de préférence circulaire.
  3. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que l'unité de déformation (U) est formée par un vérin (1), en particulier à double effet, et par un piston (2) mobile axialement dans celui-ci.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'unité de précontrainte (V) est formée par un vérin (3), en particulier à simple effet, et par un piston (4) mobile axialement dans celui-ci.
  5. Dispositif selon la revendication 3 et la revendication 4, caractérisé en ce que le vérin (1) de l'unité de déformation (U) est relié rigidement d'une part au vérin (3) ou au piston (4) de l'unité de précontrainte (V) et d'autre part à une chape (5) disposée perpendiculairement à l'axe longitudinal (X-X) de façon à former un premier bloc principal.
  6. Dispositif selon la revendication 5, caractérisé en ce qu'il y a dans la chape (5) une ouverture (5a), disposée coaxialement au vérin (1) de l'unité de déformation (U) pour coopérer avec les éléments de serrage (11), qui présente un effilement conique en s'éloignant de l'unité de déformation (U).
  7. Dispositif selon la revendication 5 ou la revendication 6, caractérisé en ce que la liaison rigide entre le vérin (1) de l'unité de déformation (U) et la chape (5) est formée par des tirants (6a), des plaques de jonction ou un boîtier tubulaire.
  8. Dispositif selon la revendication 4 et la revendication 5 ou selon l'une des revendications 5 à 7, caractérisé en ce que le piston (4) de l'unité de précontrainte (V), au moyen d'une pièce d'adaptation (7) telle qu'une plaque d'adaptation, ou le vérin (3) de l'unité de précontrainte (V) est relié rigidement à une plaque d'entraînement (8), disposée perpendiculairement à l'axe longitudinal (X-X), pour le piston (2) de l'unité de déformation (U) et à une plaque support (9), disposée perpendiculairement à l'axe longitudinal (X-X), pour les éléments de serrage (11) de façon à former un deuxième bloc principal.
  9. Dispositif selon la revendication 8, caractérisé en ce que la liaison rigide entre le vérin (3) ou le piston (4) de l'unité de précontrainte (V) et la plaque d'entraînement (8) ainsi que la plaque support (9) est formée par des tirants (6b), des plaques de jonction ou un boîtier tubulaire.
  10. Dispositif selon les revendications 3, 5 et 8, caractérisé en ce que le piston (2) de l'unité de déformation (U), le premier bloc principal et le deuxième bloc principal sont mobiles les uns par rapport aux autres parallèlement à l'axe longitudinal (X-X).
  11. Dispositif selon la revendication 10, caractérisé en ce que le premier bloc principal ou le deuxième bloc principal est disposé de manière stationnaire, par exemple relié fixement à un châssis.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que l'unité de déformation (U), en particulier une extrémité libre d'une tige de piston (2a) du piston (2), présente des moyens de fixation (2b) pour fixer de manière démontable une tête de refoulement (10).
  13. Dispositif selon l'une des revendications 8 à 12, caractérisé en ce que la plaque support (9) pour les éléments de serrage (11) présente des moyens de fixation (9a) pour fixer de manière démontable les éléments de serrage (11).
  14. Dispositif selon l'une des revendications 1 à 13, caractérisé par une tête de refoulement (10) sur un côté de laquelle est formé une empreinte (10a) en tant que contre-profil d'un profil de tuyau à former et, sur le côté opposé, un moyen de liaison (10b) tel qu'une rainure en T pour l'unité de déformation (U).
  15. Dispositif selon l'une des revendications 1 à 14, caractérisé en ce que les éléments de serrage (11) sont formés par des mâchoires de serrage (11a) qui se composent de plusieurs, en particulier de quatre segments, présentant chacun une surface extérieure de structure conique et disposés en anneau, qui sont guidés par des goupilles cylindriques (11b) et qui, à l'état non sollicité, sont maintenus dans une position d'ouverture au moyen de ressorts de compression (11c).
  16. Dispositif selon l'une des revendications 1 à 15, caractérisé en ce que, en fonctionnement, la chambre de pression (D1) de l'unité de déformation (U) est alimentée avec un fluide sous pression élevée (p2) et la chambre de pression (D2) de l'unité de précontrainte (V) est alimentée avec un fluide sous une pression basse (p1).
  17. Dispositif de façonnage de pièces d'oeuvre, en particulier pour la déformation plastique d'extrémités de tuyaux (12), avec une unité de déformation (U) actionnée par la pression (p2, p3) d'un fluide et avec une unité de précontrainte (V) actionnée par la pression (p1) d'un fluide et disposée sur un axe longitudinal commun (X-X) ainsi qu'avec des éléments de serrage (11) de structure conique pouvant être serrés au moyen de l'unité de précontrainte (V), dans lequel il est formé dans l'unité de déformation (U) et dans l'unité de précontrainte (V) respectivement au moins une chambre de pression (D1, D2) séparée à laquelle une pression peut être appliquée indépendamment de la chambre de pression (D2, D1) de l'autre unité (V, U) respective, caractérisé en ce que l'unité de déformation (U) et l'unité de précontrainte (V) sont disposées l'une à la suite de l'autre sous la forme de sous-ensembles séparés sur l'axe longitudinal commun (X-X), l'unité de déformation (U) et l'unité de précontrainte (V) comprenant chacune un vérin (1, 3) et un piston (2, 4) mobile dans celui-ci ayant une section pleine et le vérin (1) de l'unité de déformation (U) est relié rigidement d'une part au vérin (3) ou au piston (4) de l'unité de précontrainte (V) et d'autre part à une chape (5) disposée perpendiculairement à l'axe longitudinal (X-X) et coopérant avec les éléments de serrage (11) de façon à former un premier bloc principal.
  18. Dispositif selon la revendication 17, caractérisé en ce que le piston (4) de l'unité de précontrainte (V), au moyen d'une pièce d'adaptation (7) telle qu'une plaque d'adaptation, ou le vérin (3) de l'unité de précontrainte (V) est relié rigidement à une plaque d'entraînement (8), disposée perpendiculairement à l'axe longitudinal (X-X), pour le piston (2) de l'unité de déformation (U) et à une plaque support (9), disposée perpendiculairement à l'axe longitudinal (X-X), pour les éléments de serrage (11) de façon à former un deuxième bloc principal.
  19. Dispositif selon la revendication 18, caractérisé en ce que le piston (2) de l'unité de déformation (U) forme un troisième bloc principal.
  20. Dispositif selon la revendication 19, caractérisé en ce que le premier, le deuxième et le troisième bloc principal sont disposés chacun de manière mobile par rapport aux autres, le premier bloc principal ou le deuxième bloc principal étant disposé de manière stationnaire, par exemple relié fixement à un châssis.
  21. Dispositif selon l'une des revendications 17 à 20, caractérisé par un ou plusieurs des attributs de la partie de caractérisation des revendications 1 à 4, 6, 7, 9 ou 12 à 16.
EP03712027A 2002-04-12 2003-03-17 Dispositif de deformation plastique de pieces a usiner Expired - Lifetime EP1494827B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20205807U DE20205807U1 (de) 2002-04-12 2002-04-12 Vorrichtung zum plastischen Verformen von Werkstücken
DE20205807U 2002-04-12
PCT/EP2003/002731 WO2003086679A1 (fr) 2002-04-12 2003-03-17 Dispositif de deformation plastique de pieces a usiner

Publications (2)

Publication Number Publication Date
EP1494827A1 EP1494827A1 (fr) 2005-01-12
EP1494827B1 true EP1494827B1 (fr) 2006-10-11

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Application Number Title Priority Date Filing Date
EP03712027A Expired - Lifetime EP1494827B1 (fr) 2002-04-12 2003-03-17 Dispositif de deformation plastique de pieces a usiner

Country Status (8)

Country Link
US (1) US7237420B2 (fr)
EP (1) EP1494827B1 (fr)
AT (1) ATE342141T1 (fr)
AU (1) AU2003218771A1 (fr)
DE (2) DE20205807U1 (fr)
DK (1) DK1494827T3 (fr)
ES (1) ES2272956T3 (fr)
WO (1) WO2003086679A1 (fr)

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WO2013010784A1 (fr) 2011-07-20 2013-01-24 Voss Fluid Gmbh Tuyau comportant une extrémité de raccordement pour un raccord de tuyau, procédé de fabrication dudit tuyau et raccord de tuyau comportant ledit tuyau
DE102014103799A1 (de) 2014-03-20 2015-09-24 Voss Fluid Gmbh Umformwerkzeug für ein Werkstück und Vorrichtung zum Verformen eines Werkstücks mit einem derartigen Werkzeug

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DE102011106942A1 (de) 2011-07-08 2013-01-10 Wafios Ag Biegevorrichtung für stabförmige Werkstücke
CN105722619A (zh) 2013-10-30 2016-06-29 美国润滑棒公司 手持扩口工具

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DE10040595C2 (de) 2000-08-16 2002-11-07 Parker Hannifin Gmbh Vorrichtung zum Umformen eines Werkstück-Endbereichs
AU2001291601A1 (en) 2000-08-16 2002-02-25 Parker Hannifin Gmbh Device for forming an end area of a workpiece
DE10040596C1 (de) * 2000-08-16 2001-09-13 Parker Hannifin Gmbh Vorrichtung zum Umformen eines Werkstück-Endbereichs

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100566877C (zh) * 2007-03-07 2009-12-09 张家港市合丰机械制造有限公司 一种管端成形机中的成形装置
WO2011029687A1 (fr) 2009-09-10 2011-03-17 Voss Fluid Gmbh Raccord vissé et procédé de fabrication associé
DE102009041056A1 (de) 2009-09-10 2011-03-24 Voss Fluid Gmbh Rohrverschraubung und Verfahren zur Herstellung derselben
WO2013010784A1 (fr) 2011-07-20 2013-01-24 Voss Fluid Gmbh Tuyau comportant une extrémité de raccordement pour un raccord de tuyau, procédé de fabrication dudit tuyau et raccord de tuyau comportant ledit tuyau
DE102011051974A1 (de) 2011-07-20 2013-01-24 Voss Fluid Gmbh Rohrleitung mit einem Anschlussende für eine Rohrverbindung, Verfahren zu ihrer Herstellung und Rohrverbindung mit einer solchen Rohrleitung
DE102014103799A1 (de) 2014-03-20 2015-09-24 Voss Fluid Gmbh Umformwerkzeug für ein Werkstück und Vorrichtung zum Verformen eines Werkstücks mit einem derartigen Werkzeug
DE102014103799B4 (de) 2014-03-20 2018-07-05 Voss Fluid Gmbh Umformwerkzeug für ein Werkstück und Vorrichtung zum Verformen eines Werkstücks mit einem derartigen Werkzeug
US11491526B2 (en) 2014-03-20 2022-11-08 Voss Fluid Gmbh Shaping tool for a workpiece, and device for deforming a workpiece using such a tool

Also Published As

Publication number Publication date
AU2003218771A1 (en) 2003-10-27
ES2272956T3 (es) 2007-05-01
DK1494827T3 (da) 2007-02-19
ATE342141T1 (de) 2006-11-15
DE50305355D1 (de) 2006-11-23
DE20205807U1 (de) 2003-08-21
EP1494827A1 (fr) 2005-01-12
WO2003086679A1 (fr) 2003-10-23
US7237420B2 (en) 2007-07-03
US20050150270A1 (en) 2005-07-14

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