EP2637811B1 - Procédé de formage d'une pièce - Google Patents

Procédé de formage d'une pièce Download PDF

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Publication number
EP2637811B1
EP2637811B1 EP11808330.2A EP11808330A EP2637811B1 EP 2637811 B1 EP2637811 B1 EP 2637811B1 EP 11808330 A EP11808330 A EP 11808330A EP 2637811 B1 EP2637811 B1 EP 2637811B1
Authority
EP
European Patent Office
Prior art keywords
drive
forming
sintered component
relief
tooth
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.)
Active
Application number
EP11808330.2A
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German (de)
English (en)
Other versions
EP2637811A2 (fr
Inventor
Diego CASTRO MENÉNDEZ-CASTANEDO
Juan Ignacio LÓPEZ MARTÍNEZ
Iván José PRESA LÓPEZ
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.)
PMG Asturias Powder Metal SA
Original Assignee
PMG Asturias Powder Metal SA
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Publication date
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Publication of EP2637811A2 publication Critical patent/EP2637811A2/fr
Application granted granted Critical
Publication of EP2637811B1 publication Critical patent/EP2637811B1/fr
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Classifications

    • 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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/02—Dies or mountings therefor
    • B21J13/025—Dies with parts moving along auxiliary lateral directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/28—Making machine elements wheels; discs
    • B21K1/30—Making machine elements wheels; discs with gear-teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B22F2003/031—Press-moulding apparatus therefor with punches moving in different directions in different planes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/245—Making recesses, grooves etc on the surface by removing material

Definitions

  • the invention relates to a method for forming a workpiece.
  • WO 2010/075600 A1 a method for forming deposits on the internal toothing of a powder metallurgically produced sliding sleeve for a manual transmission is known.
  • the molding is done by means of a rolling tool, wherein the deposits are formed by a rear roll under plastic material displacement from the deposit area. Due to the rotational movements of the rolling tool along the surface of the workpiece for a predefined number of tool revolutions there is a risk that the workpiece is mechanically deformed.
  • EP 2 060 346 A2 a tool for compacting a sintered component or for compacting a powder for the sintered component to be produced can be removed.
  • the tool has a variable with respect to its radial dimensions compression element, with the aid of a sintered component in Form a simple ring or the toothing of a sintered component or a sintered powder is compressed.
  • the invention has for its object to process a provided surface of a workpiece inexpensively and at the same time dimensionally stable by molding.
  • a mold element is provided, which is simply moved along a working direction to a provided surface of a compacted sintered component as a workpiece and applied with a shape-relief of a contact surface of the molding element, the surface of the workpiece in the working direction.
  • the movement of the mold element in the working direction is not rotationally, but at least substantially translationally along a radial direction with respect to the workpiece, so that with little effort, a good efficiency in forming the desired surface relief is achieved, which by the shape-relief of the contact surface of the formula is predefined.
  • the shape relief of the mold element is formed non-complementary to the provided surface of the already compacted sintered component.
  • the component produced by sintering is also already calibrated.
  • the molding on the densified sintered component allows a time-saving production of the desired surface relief or the desired final geometry of the workpiece in comparison to conventional methods such as milling or reworking by milling.
  • a significantly larger number of different and complicated relief geometries on the workpiece surface can be realized, since they can be specified as a negative relief and not have to be prepared only by a cumbersome post-processing.
  • the inventive method avoids annoying burr formation on the workpiece surface, which also saves costly post-processing steps.
  • the DE 2 212 512 A1 disclosed sleeve is made of solid material, so that excess material is pressed into the tooth root and the tooth tip during pressing. This creates burr that needs to be subsequently edited and removed.
  • the formation of burrs or their distance must be taken into account when dimensioning the gearing.
  • the pushing in of excess material into the pores of the sintered component in the area of a surface relief during the molding of a predefined surface relief has the further advantage that this area can be better protected against damage and wear. As a result, the life of the sintered component can be increased without additional costs.
  • defined end geometries can be realized both on radially inner and on radially outer surfaces of, in particular, annular workpieces.
  • the provided radially inner or outer surfaces may also have discontinuities (e.g., notch, groove, or the like).
  • the shaping of the surface relief on individual or all teeth of a toothing (in particular an internal or external toothing) of a workpiece so that the final geometry of the workpiece can be made particularly cost effective and accurate.
  • a preferred application of the method is therefore the production of gears, sliding sleeves, synchronizer rings and coupling bodies for the automotive industry, in particular for manual transmissions of motor vehicles.
  • a desired surface relief on a toothing in particular toothing of a sliding sleeve
  • a desired surface relief on a toothing can be produced inexpensively. Due to the porosity of the workpiece produced as a sintered component, in particular a sliding sleeve, excess material formed during molding can be absorbed by the pores, so that the teeth of the toothing can be dimensionally shaped in all surface areas, ie also in the region of the tooth tip and tooth root.
  • the surface relief to be formed on a tooth is preferably on a lateral, in the circumferential direction an adjacent tooth facing tooth flank and / or on a radially inner or outer head portion and / or on a subsequent to the main body of the compacted sintered component foot portion of the tooth provided.
  • Recesses may be formed on the teeth of the gearing, i. on the teeth is displaced by molding material.
  • the recesses can advantageously form deposits, stops or stop teeth or locking grooves on teeth of the toothing.
  • the surface reliefs may have, for example, deposits and / or latching grooves and / or stop teeth.
  • a plurality of processing steps must be performed on a tooth, for example, if a deposit and a locking groove, ie several relief types are provided on this tooth.
  • these different relief types can be realized with a suitably designed shape relief in a single step time and cost saving on the teeth of the teeth provided for this purpose.
  • the mechanical movement control of the mold element by means of a transverse to its working direction along a drive direction movable drive element allows a defined power transmission to the surface of the workpiece and thus supports a dimensionally accurate end geometry of the workpiece.
  • the measures of claims 10 to 14 additionally improve the defined power transmission to the workpiece.
  • Claim 15 supports a defined mechanical coupling between the mold element and the other components of a drive tool during the process implementation.
  • the mutually complementary surfaces of the transmission element and the element form parallel to the drive direction of the drive element.
  • This geometry supports a structurally simple design of the mold element and its cost-effective production.
  • the simple design of the mold element promotes the reliable operation of the method of molding.
  • Claim 17 relates to a preferred embodiment of the transmission element, which supports the motion control of the mold element depending on its structural design.
  • a tool in order to be used on a surface provided as a compacted sintered component formed workpiece to form a surface relief.
  • the tool has a mold element, which is movable in a working direction, which extends in a radial direction with respect to the compacted sintered component, and has a contact surface with a shape relief. With this shape relief, the tool acts on the provided surface of the compacted sintered component to be machined by shaping in the working direction.
  • this tool helps to provide provided surfaces of already compacted sintered components (eg an internal toothing or external toothing of sliding sleeves for motor vehicles) inexpensively by molding.
  • a surface relief is formed on the surface provided, which is predefined by the shape-relief of the mold element.
  • the tool 1 for molding according to Fig. 1 has a transmission element 2 and a shaped element 3.
  • the transmission element 2 includes a first transmission element part 2a and a second transmission element part 2b. Both transmission element parts 2a and 2b are arranged in the axial direction 16 of the tool 1, that is, along a central longitudinal axis 17 of the tool 1, at a distance from each other.
  • the form element 3 is variable with respect to its radial extent in the radial direction 18.
  • individual or all transmission element parts 2a, 2b are motion-controlled in the radial direction 18. This motion control takes place by means of an associated, in Fig. 1 only schematically illustrated drive element 19a, 19b.
  • the mold element 3 carries a contact surface 5 with a shape relief 20, which is to act on a provided radially inner surface 21 of the annular workpiece 4 for forming in the working direction 22.
  • the Workpiece 4 is formed as a compacted sintered component.
  • the working direction 22 extends substantially in the radial direction 18 of the workpiece 4.
  • the relief 20 is formed non-complementary with respect to the inner surface 21 to be formed.
  • the mold element 3 is moved by means of the drive element 19 and the transmission element 2 in the direction of its radially largest extent ( Fig. 1 ).
  • the mold element 3 is moved by means of the drive element 19, 19 a, 19 b and the transmission element 2 in the direction of its radially smallest extent ( Fig. 2 ).
  • the drive element 19 is driven transversely to the working direction 22 along a drive direction 24.
  • the drive direction 24 extends parallel to the axial direction 16.
  • mutually corresponding or cooperating surfaces of the drive element 19, the transmission element 2 and the mold element 3 ensure the necessary power transmission to the mold element 3, so that this are transferred to its different positions before, during and after molding can, without causing undesirable mechanical contacts between the mold element 3 and its shape relief 20 with the workpiece 4.
  • the drive element 19 has a drive surface 25a, 25b which extends at an acute angle to the drive direction 24.
  • the drive surface 25a cooperates with a complementary transfer surface 26a of the transfer element 2a. The same applies to the drive surface 25b and a complementary transfer surface 26b of the transfer element 2b.
  • the transmission element 2 is arranged between the drive element 19 and the mold element 3.
  • the transmission element 2a or 2b has a second transmission surface 6a or 6b, which cooperates with a complementary contact surface 7a or 7b of the mold element 3.
  • the second transmission surfaces 6a, 6b and the contact surfaces 7a, 7b extend parallel to the drive direction 24 or in the axial direction 16.
  • At least one transmission element part 2a, 2b and / or the form element 3 are preferably also movable in the axial direction 16.
  • the mold element 3 is preferably formed substantially annular or hollow cylindrical. This is best in FIG. 3 and FIG. 4 recognizable. Along its circumferential direction, a plurality of slots 8 may be provided. They allow a simple radially variable extension of the dimensions of the mold element 3.
  • the mold element 3 can to some extent in the radial direction 18 "open” (radial magnification) and “closed” (radial reduction) are.
  • the provided with slots 8 form element 3 according to Fig. 5A, 5B is suitable for the realization of radially inner end geometries on an inner surface 21 of the workpiece 4.
  • the mold element 3 according to FIG. 3 and FIG. 4 is suitable for forming a radially outer surface 23 of a workpiece 4.
  • the slots 8 are aligned in the radial direction 18, but they do not extend in the axial direction 16 over the entire length of the mold element 3.
  • the provided outer surface 23 may be formed completely cylindrical in the circumferential direction 29 so that formed by means of the mold reliefs 20 individual recesses can be.
  • the outer surface may alternatively have an outer toothing 31 with one or more teeth 27, as shown schematically in FIG Fig. 4 is indicated. In these teeth 27 of the external teeth 31 then 20 individual recesses such as locking grooves 14 can be formed by means of the form-reliefs.
  • the provided surface of the workpiece 4 is the not yet formed internal toothing 11 of a sliding sleeve 10 (FIG. Fig. 6 ).
  • the end geometry to be formed or the surface relief of the internal toothing 11 to be formed are defined by the shape relief 20 of the shaped element 3 ( Fig. 5A, 5B ).
  • the internal toothing 11 to be machined by shaping can assume different end geometries:
  • the internal toothing 11 or individual teeth 27 thereof can, for example, after shaping, shape the geometry and function of deposits 12 (FIG. Fig. 7A . 8B . 10B ), of abutment teeth 13 ( Fig. 7B . 14B ) or locking grooves 14 (FIG. Fig. 7C . 12B, 12C, 12D ) exhibit.
  • FIG. 8B a first variant of a deposit 12 made by molding is shown on a tooth 27.
  • the geometry of this deposit 12 corresponds essentially to the variant according to Fig. 7A
  • a mold element 3 which can be used to form this deposit 12 is shown in FIG Fig. 9 represented in the working position causing the shaping.
  • a not yet formed tooth 27 of a toothing is based on Fig. 8A good to see. It has a radially oriented head region 30. Radially opposite this head region 30 and facing the base body 33 of the sintered component 4 or the sliding sleeve 10 is a foot region 32 of the tooth. Between the head portion 30 and the foot portion 32, two lateral tooth flanks 28 are arranged. In each case a tooth flank 28 faces a tooth 27 adjacent in the circumferential direction 29 of the sintered component 4.
  • the two tooth flanks 28 and to a lesser extent preferably also the foot region 32 are formed by means of the shaped element 3 in such a way that recesses formed on the tooth flanks 28 are formed as deposits by means of the molding 12.
  • Fig. 10B is a further variant of a deposit 12 made by forming the side flanks 28 and the foot region 32 on a tooth 27 shown.
  • a mold element 3 which can be used to form this deposit 12 is shown in FIG Fig. 11 represented in the working position causing the shaping.
  • FIGs. 12B, 12C and 12D In each case, a variant of a locking groove 14 produced by molding on a tooth 27 is shown.
  • the detent groove 14 forms a recess in the head region 30 of the tooth 27.
  • a molding element 3 which can be used in principle for forming these detent grooves 14 is shown in FIG Fig. 13 represented in the working position causing the shaping.
  • the nub-like geometry of the mold relief 20 for forming the locking groove 14 is in each case adapted to the geometric variant of the locking groove 14.
  • This surface relief can be formed by means of a single mold element 3.
  • a plurality of, in particular two, shaped elements 3 with different shape relief 20 can be used in succession, in order to form the entire surface relief (deposit 12 and latching groove 14) on the tooth 27.
  • a so-called stop tooth 13 is shown as a surface relief on a tooth 27.
  • a mold element 3 which can be used to form this stop tooth 13 is shown in FIG Fig. 15 represented in the working position causing the shaping.
  • the stop tooth 13 is produced by, in particular, two outer head sections 35 of the head region 30 being acted upon in the axial direction 16. Preferably, to a lesser extent, the two tooth flanks 28 and the foot region 32 are acted upon.
  • the mold elements 3 according to Fig. 9 . 11 . 13 . 15 can in principle the structural design according to Fig. 5A or 5B have - but with a correspondingly adapted shape relief 20.
  • Fig. 16 and Fig. 17 are the drive member 19 and its parts 19a, 19b and the tool 1 as components of a drive device 15 recognizable.
  • the drive device 15 can be designed differently and allows the transmission of the necessary forces for the motion control of the mold element 3.
  • the structural design of the drive device 15 ensures that the mold element 3 without unwanted contact between its shape relief 20 and its contact surface 5 with the workpiece. 4 can be transferred to the desired position.
  • the transmission element 2 or parts 2a, 2b thereof and / or the mold element 3 and / or the drive element 19 or parts 19a, 19b thereof during the process execution in the axial direction 16 are moved.
  • the drive device 15 reduces the radial extension of the molded element 3 by means of the transfer element 2b and converts it into a Starting position within the workpiece 4 with a radial distance to the inner surface to be formed 21 (FIG. Fig. 16 ).
  • the mold element 3 is also transferred axially into the required position.
  • the drive device 15 controls by means of the part 19a of the drive element 19, the transmission element 2a such that the latter increases the radial extent of the mold element 3 in order to perform the molding in a working position.

Claims (18)

  1. Procédé de formage d'un relief de surface (12, 13, 14) sur une surface préparée (11, 21, 23, 31) d'une pièce réalisée sous forme de composant fritté compacté (4, 10), dans lequel
    - on déplace un élément de formage (3) destiné au formage du relief de surface (12, 13, 14) dans une direction de travail (22) vers la surface préparée (11, 21, 23, 31) du composant fritté compacté (4, 10),
    - la direction de travail (22) de l'élément de formage (3) s'étend dans une direction radiale (18) par rapport au composant fritté compacté (4, 10), et
    - l'élément de formage (3) porteur d'un relief de formage (20) d'une face de contact (5) frappe la surface préparée (11, 21, 23, 31) du composant fritté compacté (4, 10) dans la direction de travail (22).
  2. Procédé selon la revendication précédente, caractérisé en ce que, pour le déplacement de l'élément de formage (3), on change une extension radiale de l'élément de formage (3) dans la direction de travail (22).
  3. Procédé selon la revendication 2, caractérisé en ce que l'on change l'extension radiale de l'élément de formage (3)
    - en direction de la plus grande extension radiale, lorsque le relief de surface (12, 13, 14) est formé sur une surface préparée radialement intérieure (11, 21) du composant fritté compacté (4, 10) et
    - en direction de la plus petite extension radiale, lorsque le relief de surface (12, 13, 14) est formé sur une surface préparée radialement extérieure (23, 31) du composant fritté compacté (4, 10).
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on forme le relief de surface (12, 13, 14) sur une denture, en particulier une denture intérieure (11) ou une denture extérieure (31), formant la surface préparée du composant fritté compacté (4, 10).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le composant fritté compacté est configuré sous forme de manchon coulissant (10) pour une boîte de vitesses d'un véhicule automobile.
  6. Procédé selon la revendication 4 ou 5, caractérisé en ce que l'on forme le relief de surface (12, 13, 14) sur au moins une dent (27) d'une denture intérieure (11) ou d'une denture extérieure (31) préparée.
  7. Procédé selon la revendication 6, caractérisé en ce que l'on forme le relief de surface (12, 13, 14)
    - sur un flanc de dent latéral (28) de la dent (27) tourné vers une dent voisine (27) dans la direction périphérique (29) de la denture (11, 31) et/ou
    - sur une région de tête (30) de la dent (27) située radialement à l'intérieur ou à l'extérieur et/ou
    - sur une région de pied (32) de la dent (27) se raccordant au corps de base (33) du composant fritté compacté (4, 10).
  8. Procédé selon la revendication 7, caractérisé en ce que le relief de surface formé
    - présente un retrait (12) en forme d'évidement dans le flanc de dent latéral (28) et/ou
    - présente une rainure d'encliquetage (14) en forme d'évidement dans la région de tête (30) et/ou
    - présente une dent de butée (13) avec dans la région de tête (30) au moins deux parties de tête différentes (34, 35), qui s'étendent sur une distance différente en direction radiale (18).
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on commande le déplacement de l'élément de formage (3) au moyen d'un élément d'entraînement (19, 19a, 19b) mobile le long d'une direction d'entraînement (24) transversalement à sa direction de travail (22).
  10. Procédé selon la revendication 9, caractérisé en ce que la direction d'entraînement (24) s'étend en direction axiale (16) par rapport au composant fritté compacté (4, 10).
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que l'élément d'entraînement (19, 19a, 19b) présente une face d'entraînement (25a, 25b) pour transmettre une force à l'élément de formage (3).
  12. Procédé selon la revendication 11, caractérisé en ce que la face d'entraînement (25a, 25b) s'étend sous un angle aigu par rapport à la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  13. Procédé selon la revendication 11 ou 12, caractérisé en ce que la face d'entraînement (25a, 25b) coopère avec une face de transmission complémentaire (26a, 26b) d'un élément de transmission (2, 2a, 2b) positionné entre l'élément d'entraînement (19, 19a, 19b) et l'élément de formage (3).
  14. Procédé selon la revendication 13, caractérisé en ce que l'élément de transmission (2, 2a, 2b) est mobile dans la direction de travail (22) de l'élément de formage (3) et/ou dans la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que l'élément de transmission (2, 2a, 2b) présente une deuxième face de transmission (6a, 6b), qui coopère avec une face d'appui complémentaire (7a, 7b) de l'élément de formage (3).
  16. Procédé selon la revendication 15, caractérisé en ce que la deuxième face de transmission (6a, 6b) et la face d'appui (7a, 7b) s'étendent parallèlement à la direction d'entraînement (24) de l'élément d'entraînement (19, 19a, 19b).
  17. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élément de formage (3) coopère avec un élément de transmission (2), qui présente au moins deux parties d'élément de transmission (2a, 2b) espacées l'une de l'autre transversalement à la direction de travail (22), dans lequel chaque partie d'élément de transmission (2a, 2b) présente une deuxième face de transmission (6a, 6b) et coopère avec une face d'appui respective (7a, 7b) de l'élément de formage (3).
  18. Utilisation d'un outil (1) pour le formage d'un relief de surface (12, 13, 14) sur une surface préparée (11, 21, 23, 31) d'une pièce réalisée sous forme de composant fritté compacté (4, 10), dans laquelle l'outil (1) présente un élément de formage (3), qui est mobile dans une direction de travail (22), qui s'étend dans une direction radiale (18) par rapport au composant fritté compacté (4, 10) et présente une face de contact (5) porteuse d'un relief de formage (20) pour frapper la surface (11, 21, 23, 31) du composant fritté compacté (4, 10) dans la direction de travail (22).
EP11808330.2A 2010-11-12 2011-11-11 Procédé de formage d'une pièce Active EP2637811B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6982010 2010-11-12
PCT/IB2011/002950 WO2012063130A2 (fr) 2010-11-12 2011-11-11 Procédé de formage d'une pièce

Publications (2)

Publication Number Publication Date
EP2637811A2 EP2637811A2 (fr) 2013-09-18
EP2637811B1 true EP2637811B1 (fr) 2016-06-08

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EP11808330.2A Active EP2637811B1 (fr) 2010-11-12 2011-11-11 Procédé de formage d'une pièce

Country Status (7)

Country Link
US (1) US9427790B2 (fr)
EP (1) EP2637811B1 (fr)
JP (1) JP2014500800A (fr)
CN (1) CN103260788B (fr)
BR (1) BR112013011278A2 (fr)
RU (1) RU2013120985A (fr)
WO (1) WO2012063130A2 (fr)

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DE102013002043A1 (de) * 2013-02-07 2014-08-07 Sona Blw Präzisionsschmiede Gmbh Kalibriergesenk und Verfahren zur Herstellung eines Getriebe-Schaltrads mit Laufverzahnung
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US9427790B2 (en) 2016-08-30
CN103260788B (zh) 2016-01-27
WO2012063130A3 (fr) 2012-07-12
EP2637811A2 (fr) 2013-09-18
US20140020442A1 (en) 2014-01-23
WO2012063130A2 (fr) 2012-05-18
BR112013011278A2 (pt) 2016-11-01
CN103260788A (zh) 2013-08-21
JP2014500800A (ja) 2014-01-16

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