EP1341625B1 - Procede de fluotournage et dispositif de fluotournage correspondant - Google Patents

Procede de fluotournage et dispositif de fluotournage correspondant Download PDF

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Publication number
EP1341625B1
EP1341625B1 EP01994612A EP01994612A EP1341625B1 EP 1341625 B1 EP1341625 B1 EP 1341625B1 EP 01994612 A EP01994612 A EP 01994612A EP 01994612 A EP01994612 A EP 01994612A EP 1341625 B1 EP1341625 B1 EP 1341625B1
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EP
European Patent Office
Prior art keywords
stop element
preform
tool
tool mandrel
mandrel
Prior art date
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
EP01994612A
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German (de)
English (en)
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EP1341625A1 (fr
Inventor
Wolfgang RÖMPP
Thomas Rupke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leifeld Metal Spinning GmbH
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Leifeld Metal Spinning GmbH
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Filing date
Publication date
Application filed by Leifeld Metal Spinning GmbH filed Critical Leifeld Metal Spinning GmbH
Publication of EP1341625A1 publication Critical patent/EP1341625A1/fr
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Publication of EP1341625B1 publication Critical patent/EP1341625B1/fr
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/025—Internally geared wheels

Definitions

  • the invention relates to a method for spin forming a Workpiece with internal profile, in which a preform of the workpiece is clamped to a tool thorn in his Longitudinal direction is provided with an outer profile, for molding of the inner profile a relative movement between the Tool mandrel and a forming tool to one with the Longitudinal axis of the tool mandrel coincident axis of rotation is executed, wherein the forming tool, the material the tensioned on the tool mandrel preform in the outer profile of the tool mandrel is molded, and the preform with their towards the tool mandrel facing end, at least during the molding of the preform in the outer profile on a stop element is applied. Furthermore, the invention relates a flow-forming device according to the preamble of the claim 9th
  • the aforementioned method for spin forming and a suitable for performing the method flow-forming According to the preamble of claim 9, for example, from DE 196 36 567 A1 or DE 198 30 816 C2.
  • this known method becomes a preform of the workpiece to a tool mandrel tensioned by means of an axially movable pressure element.
  • On the lateral surface of the tool mandrel is an outer profile formed, which is complementary to the inner profile to be produced, for example, a straight toothing, a helical toothing, a splined shaft profile or the like is.
  • For shaping the inner profile is a relative movement between the tool mandrel and a forming tool, For example, a forming roll to one with the Longitudinal axis of the tool mandrel coincident axis of rotation performed so that material of the tool mandrel tensioned Preform formed in the outer profile of the tool mandrel or is pressed.
  • the forming tool additionally radial, i. transverse to the axis of rotation, and / or axially, i. parallel to the axis of rotation, moved become.
  • the invention has the object of developing the aforementioned method and the aforementioned flow-forming device so that tool wear and the risk of tool breakage is further reduced and avoided as possible.
  • the object is achieved by a method with the features Claim 1 and in particular solved by the under Preload on the preform during molding fitting Stop element for generating a circumferential direction the preform at this acting, defined torsional stress applies a defined torque to the preform.
  • the object is achieved by a flow-forming device solved with the features of claim 9.
  • the invention was based on the finding that during the Spin rolling in addition to the forming forces on the preform Torsional forces attack, leading to a twisting of the preform can lead around the axis of rotation. Furthermore was recognized that with a stop element, the resulting Torsions kit can be absorbed and supported, so that the torsional forces distributed over the tool teeth attack the tool thorn and the load on the individual tool teeth of the outer profile reduced accordingly is.
  • the invention now proposes, by the stop element at least during forming on the preform a torque exercise, by the circumferential direction of the preform arise at this targeted torsional stresses.
  • the force exerted by the stop element torque such that the resulting torsional stresses the torsional forces created during preforming on the preform at least approximately offset, so that despite of forming the preform at most slightly twisted or is twisted.
  • defined torque are the resulting during the flow-forming Torsional forces balanced in the preform, so that the tool teeth of the outer profile of the tool mandrel occurring forming forces are lower, consequently the tool teeth exposed to comparatively low loads is and less quickly wears or less prone to tool breakage than when using the known Process.
  • the stop element to move relative to the tool mandrel. Is used for generation the relative movement of the tool mandrel to the forming tool the tool mandrel and thus the preform in rotation offset, is also the rotating stop element operated at a correspondingly lower or higher speed, to produce the desired counter torque. In contrast, the relative movement between the tool mandrel and the forming tool by a circumferential movement of the Forming tool generated, the stopper element with respect of the tool mandrel slightly twisted to the desired To generate torque on the preform.
  • the preform during clamping on the mandrel also at the same time clamped against the stop element, so that already at the beginning of forming the preform accordingly in axial Direction is clamped and already at the beginning of the spin-rolling the stop element to a corresponding torque can produce the preform.
  • the stop element only to a later in contact with the preform bring, so that the forming tool the preform first axially formed to the desired length before the stop element is used.
  • the preform is usually close to its one end on the Tool mandrel is held by the forming tool torsional forces caused during forming this face comparatively low while they with increasing distance of the forming tool from the clamping point increase.
  • the stop element in the circumferential direction to increase the torque generated by the preform the closer the forming tool moves to the stop element is. In this way it is achieved that during the the forming during the relative movement of the forming tool with respect to the tool mandrel in the direction of the stop element increasing torsional forces by increasing the stop element caused counter torque on a permissible Be kept moderate.
  • the generated by the stop element in the circumferential direction of the preform Torque is preferably known in dependence Forming parameters such as the material, the degree of deformation and Similar regulated.
  • a sleeve-shaped stop element to use which has an inner profile, with the stop element with a portion of the on Tool mandrel formed outer profile engaged becomes.
  • the stop element becomes relative to the mandrel about the axis of rotation such turned that stopper with its inner profile biased against the outer profile of the tool mandrel.
  • the longitudinal direction of the preform biasing force generated by the stopper member during forming increase, the closer the forming tool to the stop element is moved up. In this way it is achieved that supports the material flowing in the axial direction and is deflected in the radial direction, so that the Tool teeth on the outer profile of the tool mandrel also completely filled with material near the stop element becomes.
  • the invention relates to a Flow-forming device, in particular for carrying out the inventive method is designed.
  • inventive Flow-forming device as in the claim 9 is also a tool mandrel with an outer profile for forming the preform, a forming tool and provided a stop element.
  • an actuator provided, through which the stop element in the circumferential direction the preform about the axis of rotation relative to Tool mandrel is adjustable. With the help of the actuator can the stopper element relative to the tool mandrel be adjusted to the generation of the torque desired offset of the stop element to the tool on the mandrel set tensioned preform.
  • the actuating device has a drive unit on, by a transmission element with the stop element is coupled to the stop element to the Rotate axis of rotation.
  • a drive unit is this
  • a control device and a brake unit be used, which in a rotationally driven Tool mandrel co-driven by the tool mandrel or entrained stop element for generating the torque slows down specifically.
  • the embodiment uses a toothed belt, the with a provided on the drive unit pinion and with a toothing formed on the stop element in Intervention is.
  • the timing belt it is possible, already existing flow-forming device without large Retrofit effort.
  • gear unit which in turn with a toothing formed on the stop element in engagement stands.
  • gear unit for example, a single gear used, which is the drive pinion of the drive unit directly with the formed on the stop element Dovetailing couples.
  • gear unit it is also possible the gear unit as a sub or transmission gear train, which consists of several, possibly also switchable gears is constructed.
  • the flow-forming device is used as actuator at least one on Stop element or provided on the mandrel guide pin used in one of the tool mandrel or on the stop element trained groove is guided.
  • the groove is It is designed so that the stop element at a Shift along the tool mandrel a rotary motion with respect to the mandrel performs, which in the the mandrel tensioned preform the desired torsional stress is produced.
  • the groove may in this embodiment of the actuator be formed obliquely or curved.
  • a spring arrangement coupling the stop element with the tool mandrel whose spring force acts in the circumferential direction of the stop element such that the spring force increases linearly or progressively with increasing rotation of the stop element relative to the spring arrangement
  • the use of a spring arrangement as an actuating device is particularly advantageous when the tool mandrel is set in rotation, wherein the biasing element abutting the preform stop element is entrained. If, during the spin forming, formation of torsional stresses occurs on the preform, the stop element is deflected against the force of the spring arrangement with respect to the tool mandrel.
  • the stop element in the longitudinal direction to store the tool mandrel displaceable, and by a Clamping device in the direction of the free end of the tool mandrel to make prestressable. This makes it possible according to the actual forming conditions during the spin forming the biasing forces of the stop element to adjust in the axial direction.
  • Fig. 1 shows a sectional view of a first embodiment a flow-forming device 10.
  • the flow-forming device 10 has a tool mandrel 11, which is not illustrated end in a known manner on a rotary drive the flow-forming device 10 is flanged.
  • the flow-forming device 10 is flanged.
  • the free end of the tool mandrel 11 is on its outer peripheral surface as a tool toothing serving external toothing 12, with the, as will be explained later, the desired inner profile is formed in the relevant workpiece.
  • the centering mandrel 13 serves for aligning and centering a pressing member 14, in the axial Direction of the rotation axis R between a release position, in which it is spaced from the end face of the tool mandrel 11 is arranged, and a clamping position to be moved can, in which the pressing member 14 is a preform 15 at the Front side of the tool mandrel 11 clamped and secured.
  • the flow-forming device 10 has an on the Tool mandrel 11 slid, sleeve-shaped stop element 16, which faces away from the pressure element 14 at its End of pressure pin 17 of a housed in a housing 18, not shown tensioning device, for example a plate spring assembly, is applied.
  • the stop element 16 At the other end of the stop element 16, the stop element 16 a section 19 larger inside diameter on, with the stop member 16 via the on the tool mandrel 11 trained external teeth 12 are pushed can, without the stopper member 16 with the external teeth 12 comes into contact.
  • a toothing At the front side 20 of the Stop element 16 is a toothing, not shown formed, the purpose of which will be explained later.
  • the End 20 of the stop element 16 goes into a conically widening shell portion 21 on, in turn in a cylindrical portion of the stop element 16 expires.
  • a forming tool are in the flow-forming device shown 10 multiple rolling elements 22 used, which is evenly distributed on one in a tool carrier 23rd supported outer ring 24 support.
  • the rolling elements 22 run at a predetermined angle with respect to the axis of rotation R of the tool mandrel 11 inclined, the inclination angle the rolling elements 22 correspond approximately to the cone angle, with the cone-shaped extended shell section 21 of the stop element 16 with respect to the axis of rotation R runs.
  • the rolling elements 22 are in known Way with the help of a support body 25 with bolted thereto Holding elements 26 against falling out of the tool carrier 23 secured.
  • a single spinning roller may also be used become.
  • Timing belt 28 of an actuator in engagement stands.
  • the timing belt 28 is not in turn with a shown drive pinion of a servomotor of the actuator engaged.
  • the stop element 16 which under a bias of optionally several 100 kN on the front side of the preform 15 is applied and this presses against the pressing member 14, with respect to the Pressing element 14 in the circumferential direction of the preform 15 to twist.
  • the pressing element 14 For pressure-rolling, first the pressing element 14 in moves its release position and then the possibly cup-shaped deep-drawn preform 15 on the tool mandrel 11 postponed. Subsequently, the pressing element 14 moved to its clamping position in which it is the preform 15 presses against the end face of the tool mandrel 11, the preform 15 coincides with the face of its cup-shaped edge portion on the end face 20 of the stop element 16 comes to the plant and this against the Displaced force of the clamping device, not shown. Subsequently, the tool mandrel 11 together with the stop element 16 and the pressing member 14 is rotated, while simultaneously the tool carrier 23 starting from the pressing element 14 in the direction of the stop element 16th along the rotation axis R is moved.
  • the stop element 16 of the actuator with the help of the toothed belt 28 with respect to the pressure element 14 about the rotation axis R twisted so that the in the preform 15 by the flow forming torsional forces through the counteracting torque and the thereby causing counteracting torsional stresses be at least partially offset. It prevents formed on the end face 20 of the stop element 16 Gearing, with the front side of the preform 15 in Intervention is, slipping of the stop element 16th with respect to the preform 15.
  • the stopper 16 causes So a counter-torque, which by the rolling elements 22nd caused twisting of the preform 15 counteracts, so that an excessive load on the sections of external teeth 12, in particular near the end face of the preform 15th is prevented.
  • the flow-forming device 10 was a cup-shaped preform 15 used.
  • a Ronde on the tool mandrel 11 through a correspondingly designed spinning roller first in a Cup shape is rolled.
  • FIG. 2 and 3 is an alternative embodiment a flow-forming device 30 whose structure substantially corresponds to the structure of the flow-forming device 10, so that identical components with identical reference numerals are designated.
  • the only difference of Flow-forming device 30 to the above-described flow-forming device 10 consists in the stop element used 31st
  • the stop element 31 corresponds essentially to the previously described stop element 16, however, wherein on the section 32 larger diameter an internal toothing 33rd is formed, which is complementary to that on the tool mandrel 11th trained external toothing 12 is formed and with this is in engagement, as shown in FIG. 3, when the stop element 31 abuts against the preform 15. Also at the second embodiment, the flow-forming device 30 an actuator, which by means of the toothed belt 28, the stop element 31 relative to the pressure element 14 can rotate about the rotation axis R. In this Embodiment, however, is a relative twisting of the Stop element 31 to the pressure element 14 only so far possible, as it is the meshing gears 12 and 33 allow.
  • the stop element 31 is fulfilled Consequently, in the flow-forming device 30 in addition the task of the individual teeth of the external teeth 12th of the tool mandrel 11 to generate supporting forces that the individual Support teeth of external teeth 12 during spin forming, while the stopper member 31 at the same time corresponding torque causes the preform 15, by twisting the preform 15 during spin-rolling is at least partially prevented.
  • FIG. 4 and 5 is a third embodiment a flow-forming device 14 according to the invention disclosed.
  • the structure of the flow-forming device 40 is also the same essentially the structure of the flow-forming device 10, so that identical components with identical reference numerals are designated. Only difference of the flow-forming device 40 opposite the flow-forming device 10 is made in the stop member 41 used and the common with the stop member 41 used actuator 42.
  • the actuator 42 has several, evenly over the circumference of the stop element 41st distributed, attached to this guide pin 43, from those in Fig. 4 for illustration, only one guide pin 43 can be seen.
  • Each guide pin 43 projects radially inside in the central bore of the sleeve-shaped stop element 41 in one of several on the lateral surface the tool mandrel 44 formed parking grooves 45th
  • the parking grooves 45 extend below a Angle ⁇ oblique to the longitudinal direction of the axis of rotation R, so that during a displacement of the stop element 41 along the tool mandrel 44, the stop member 41 through the in the parking grooves 45 received guide pin 43 to the Rotation axis R is twisted.
  • the preform 15 is now lengthened axially, causes the axial elongation of the preform 15 in the direction the rotation axis R a displacement of the stop element 41 against the force of the tensioning device, not shown.
  • the stop element 41st along the tool mandrel 44 the stop element 41st by the guide pins engaging with the positioning grooves 45 43 is rotated relative to the pressing member 14, so that at the preform 15 corresponding torsional stresses arise, which caused the during the spin rolling Counteract torsional forces.
  • the positioning grooves 45 are curved, so that with increasing axial displacement of the stop element 41 corresponding to the counter torque generated by this disproportionately increases.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Pulleys (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Claims (18)

  1. Procédé de fluotournage d'une pièce à profil intérieur, dans lequel
    une préforme (15) de la pièce est serrée sur un mandrin porte-outil (11 ; 44) qui est muni d'un profil extérieur (12) dans sa direction longitudinale,
    pour former le profil intérieur, on exécute un mouvement relatif entre le mandrin porte-outil (11 ; 44) et un outil de formage (22) autour d'un axe de rotation (R) coïncidant avec l'axe longitudinal du mandrin porte-outil (11 ; 44), l'outil de formage (22) repoussant la matière de la préforme (15) montée sur le mandrin porte-outil (11 ; 44) dans le profil extérieur du mandrin porte-outil (11 ; 44), et
    au moins pendant le repoussage de la préforme (15) dans le profil extérieur (12), la préforme (15) s'appuie avec sa face frontale orientée vers le mandrin porte-outil (11 ; 44) contre un élément de butée (16 ; 31 ; 41),
    caractérisé en ce que,
    pour produire une contrainte de torsion définie dans la direction circonférentielle de la préforme (15) et s'exerçant sur celle-ci, l'élément de butée (16 ; 31 ; 41) s'appuyant sous précontrainte contre la préforme (15) pendant le repoussage exerce un couple de rotation défini sur la préforme (15).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    l'élément de butée (16 ; 31 ; 41), est déplacé relativement au mandrin porte-outil (11 ; 44) pour produire le couple de rotation.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que,
    lors du serrage sur le mandrin porte-outil (11 ; 44), la préforme (15) est serrée simultanément contre l'élément de butée (16 ; 31 ; 41).
  4. Procédé selon la revendication 1, 2 ou 3,
    caractérisé en ce que
    l'outil de formage (22) exécute pendant le repoussage un mouvement relatif par rapport au mandrin porte-outil (11 ; 44) le long de l'axe de rotation (1) en direction de l'élément de butée (16 ; 31 ; 41) et
    en ce que le couple de rotation produit par l'élément de butée (16 ; 31 ; 41) dans la direction circonférentielle de la préforme (15) est augmenté à mesure qu'on rapproche l'outil de formage (22) de l'élément de butée (16 ; 31 ; 41).
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    le couple de rotation est augmenté linéairement ou progressivement quand la distance diminue entre l'outil de formage (22) et l'élément de butée (16 ; 31 ; 41).
  6. Procédé selon l'une quelconque des revendications 1 à 5,
    caractérisé en ce que
    le couple de rotation produit par l'élément de butée (16 ; 31 ; 41) dans la direction circonférentielle de la préforme (15) est régulé en fonction du matériau et/ou en fonction du degré de formage et/ou en fonction du couple de résistance de la préforme (15).
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'on
    utilise un élément de butée (31) en forme de douille avec un profil intérieur (33), avec lequel l'élément de butée (31) est mis en prise avec une section du profil extérieur (12)
    du mandrin porte-outil (11 ; 44) avant le repoussage ou pendant le repoussage, et
    en ce que l'élément de butée (31) tourne autour de l'axe de rotation (R) par rapport au mandrin porte-outil (11 ; 44)
    de telle manière que l'élément de butée (31) s'appuie avec son profil intérieur (33) sous précontrainte contre le pro fil extérieur (12) du mandrin porte-outil (11 ; 44).
  8. Procédé selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    l'outil de formage (22) exerce pendant le repoussage un mou vement relatif par rapport au mandrin porte-outil (11 ; 44) le long de l'axe de rotation (R) en direction de l'élément de butée (16 ; 31 ; 41) et
    en ce que la force de précontrainte produite par l'élément de butée (16 ; 31 ; 41) dans la direction longitudinale de la préforme (15) est augmentée à mesure qu'on rapproche l'outil de formage (22) de l'élément de butée (16 ; 31 ; 41).
  9. Dispositif de fluotournage, en particulier pour appliquer un procédé selon l'une quelconque des revendications 1 à 8, avec
    un mandrin porte-outil (11 ; 44) sur lequel est formé un profil extérieur (12) destiné à réaliser un profil intérieur sur une préforme (15),
    un outil de formage (22) pour repousser la matière de la préforme (15) dans le profil extérieur (12) pendant une opération de fluotournage, le mandrin porte-outil (11 ; 44) et l'outil de formage (22) pouvant tourner l'un par rapport à l'autre autour d'un axe de rotation (R) coïncidant avec la direction longitudinal du mandrin porte-outil (11 ; 44), et
    un élément de butée (16 ; 31 ; 41) prévu sur le mandrin porte-outil (11 ; 44) contre lequel la préforme (15) s'appuie au moins pendant le fluotournage,
    caractérisé en ce que
    l'élément de butée (16 ; 31 ; 41) est monté rotatif par rapport au mandrin porte-outil (16 ; 31 ; 41) et
    en ce qu'il est prévu sur le dispositif de fluotournage (10 ; 30 ; 40), un dispositif d'actionnement qui coopère de telle manière avec l'élément de butée (16 ; 31 ; 41) que l'élément de butée (16 ; 31 ; 41) exerce un couple de rotation sur la préforme (15) pendant le fluotournage.
  10. Dispositif de fluotournage selon la revendication 9,
    caractérisé en ce que
    le dispositif d'actionnement présente une unité d'entraínement qui est couplée à l'élément de butée (16) par un élément de transmission (28) pour faire tourner l'élément de butée (16) autour de l'axe de rotation (R).
  11. Dispositif de fluotournage selon la revendication 10,
    caractérisé en ce que
    l'élément de transmission est une courroie dentée (28) qui est en prise avec un pignon prévu sur l'unité d'entraínement et avec une denture (27) formée sur l'élément de butée (16).
  12. Dispositif de fluotournage selon la revendication 10,
    caractérisé en ce que
    l'élément de transmission est une roue dentée d'une unité d'engrenages en prise avec le pignon d'entraínement de l'unité d'entraínement, et
    en ce que l'unité d'engrenages formée d'au moins une roue dentée est en prise avec une denture formée sur l'élément de butée.
  13. Dispositif de fluotournage selon la revendication 9,
    caractérisé en ce que
    le dispositif d'actionnement présente au moins un tenon de guidage (43) prévu sur l'élément de butée (41) ou sur le mandrin porte-outil (41), tenon qui est guidé dans une rainure (45) réalisée sur le mandrin porte-outil (44) ou sur l'élément de butée (41) de telle manière que, lors d'un dé placement le long du mandrin porte-outil (44), l'élément de butée (41) exécute un mouvement de rotation par rapport au mandrin porte-outil (44).
  14. Dispositif de fluotournage selon la revendication 13,
    caractérisé en ce que
    la rainure (45) s'étend à l'oblique ou en forme de courbe par rapport à la direction de déplacement de l'élément de butée (41).
  15. Dispositif de fluotournage selon la revendication 9,
    caractérisé en ce que
    le dispositif d'actionnement présente un système de ressort couplant l'élément de butée au mandrin porte-outil, dont la force de ressort agit de telle manière dans la direction circonférentielle de l'élément de butée que la force de ressort augmente linéairement ou progressivement pour une rotation croissante de l'élément de butée par rapport au système de ressort.
  16. Dispositif de fluotournage selon l'une quelconque des revendications 9 à 15,
    caractérisé en ce que
    l'élément de butée (16 ; 31 ; 41) est monté mobile dans la direction longitudinale du mandrin porte-outil (11 ; 44) et peut être précontraint par un dispositif de serrage (17) en direction de l'extrémité libre du mandrin porte-outil (11 ; 44).
  17. Dispositif de fluotournage selon l'une quelconque des revendications 9 à 16,
    caractérisé en ce que
    le profil extérieur (12) formé sur le mandrin porte-outil (11) est une denture droite ou une denture oblique et
    en ce que l'élément de butée (31) présente une denture in térieure (33) de forme correspondante, avec laquelle l'élément de butée (31) peut être mis en prise avec la denture extérieure (12) formée sur le mandrin porte-outil (11).
  18. Dispositif de fluotournage selon l'une quelconque des revendications 9 à 17,
    caractérisé en ce que
    l'élément de butée (16 ; 31 ; 41) est rendu rugueux, moleté ou denté sur sa face frontale (20) venant en contact avec la préforme (15).
EP01994612A 2000-12-13 2001-10-17 Procede de fluotournage et dispositif de fluotournage correspondant Expired - Lifetime EP1341625B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10062002 2000-12-13
DE10062002A DE10062002B4 (de) 2000-12-13 2000-12-13 Verfahren zum Drückwalzen sowie Drückwalzvorrichtung
PCT/EP2001/012028 WO2002047843A1 (fr) 2000-12-13 2001-10-17 Procede de fluotournage et dispositif de fluotournage correspondant

Publications (2)

Publication Number Publication Date
EP1341625A1 EP1341625A1 (fr) 2003-09-10
EP1341625B1 true EP1341625B1 (fr) 2005-06-08

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EP01994612A Expired - Lifetime EP1341625B1 (fr) 2000-12-13 2001-10-17 Procede de fluotournage et dispositif de fluotournage correspondant

Country Status (5)

Country Link
EP (1) EP1341625B1 (fr)
AT (1) ATE297275T1 (fr)
AU (1) AU2002224782A1 (fr)
DE (2) DE10062002B4 (fr)
WO (1) WO2002047843A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011178A1 (de) * 2004-03-08 2005-09-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Oberflächenbehandlung von Substraten
WO2010012457A1 (fr) * 2008-07-29 2010-02-04 Repkon Machine And Tool Industry & Trade Ltd. Dispositif et procédé de fabrication ou d'usinage de pièces à partir d'une préforme, en particulier pour le formage de profilés intérieurs ou de dentures intérieures
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DE10062002A1 (de) 2001-12-13
WO2002047843A1 (fr) 2002-06-20
ATE297275T1 (de) 2005-06-15
EP1341625A1 (fr) 2003-09-10
AU2002224782A1 (en) 2002-06-24
DE10062002B4 (de) 2006-11-09

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