EP3086891A1 - Forging tool for the manufacture of a shaped rolled ring, notably for the manufacture of a turbomachine disc - Google Patents

Forging tool for the manufacture of a shaped rolled ring, notably for the manufacture of a turbomachine disc

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Publication number
EP3086891A1
EP3086891A1 EP15705675.5A EP15705675A EP3086891A1 EP 3086891 A1 EP3086891 A1 EP 3086891A1 EP 15705675 A EP15705675 A EP 15705675A EP 3086891 A1 EP3086891 A1 EP 3086891A1
Authority
EP
European Patent Office
Prior art keywords
manufacturing
rolling
disk
ring
manufacture
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.)
Granted
Application number
EP15705675.5A
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German (de)
French (fr)
Other versions
EP3086891B1 (en
Inventor
Michel Breton
Samuel SICOT
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA Services SA
SNECMA SAS
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Application filed by SNECMA Services SA, SNECMA SAS filed Critical SNECMA Services SA
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Classifications

    • 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
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length

Definitions

  • One aspect of the present invention is a forging tool for the manufacture of a shaped rolled-up ring, in particular for the manufacture of a turbomachine disk, made with such a tool.
  • the object of the invention is to improve a roughing stage of manufacture of certain turbomachine discs, which is used forging, and more specifically to a rolling.
  • a blank of the crown disc, heated to a sufficient temperature, is introduced into a tool which reduces its section while enlarging the radius of the crown. This contributes to obtain discs of relatively large diameter, with large bores in the center.
  • the manufacture of the disc is then continued by other methods.
  • a tool with two mandrels, however, lacking the original features of the invention, is described in DE-299 07 807 U.
  • the window of temperatures suitable for forging is much smaller for such alloys than for conventional alloys such as Inconel 718, commonly used so far for such applications.
  • the parts, out of the oven and subjected to rolling take little time to cool too much in the air, and then it is observed that cracks can appear in the rolled crown.
  • the quality of the crown is then compromised, since the defects created do not disappear during the subsequent stages of manufacture.
  • the rolling operation is therefore carried out in practice in several steps, between which the blank of the disk is put back to heat to the desired temperature. This can greatly lengthen the manufacturing time, since many of these heat rebates (typically one to three) are in practice necessary. In some embodiments, their number is reduced by accepting a beginning of appearance of the cracks, which are then removed by grinding the blank at their places before resuming heating, then rolling. It is clear, however, that grinding itself consumes time as well as matter.
  • one aspect of the invention is a tool for rolling a piece in the form of a crown, comprising two mandrels rotating about axes parallel to each other and each comprising a circular impression of receiving the crown, the impressions comprising a bottom face and side faces, characterized in that the bottom face of each of the mandrels is connected to the side faces by curved portions having radii of curvature of between 10 and 20 mm.
  • the crowns have a diameter of 300 mm to 1500 mm outside this rolling, and are made of a nickel-based alloy or nickel-chromium.
  • the radii of curvature can typically be included preferably from 12 mm to 15 mm.
  • the bottom face is cylindrical or conical, defined by a rectilinear generatrix, and the lateral faces are conical, and defined by rectilinear generators too.
  • the crowns whose section is essentially polygonal and generally quadrangular between the bottom faces defining their inner radius and their outer radius, and the lateral faces defining their lateral sides, normally acquire sharp-angled connections between these faces during rolling achieved with known tools.
  • these connections arrive in front of the curved portions, which crush the sharp corners and maintain the connections to radii of curvature. Cracks forming first at sharp angles, they can not appear, or more easily, with the invention.
  • Another aspect is a method of manufacturing a turbomachine disk, comprising a rolling roughing step where the disk arrives in the form of a ring and a section of which is reduced by rolling, characterized in that said step is accomplished by a tooling according to the above, the ring being of substantially polygonal section and having corners located on the curved portions, and also curved during the process.
  • FIG. 1 is a general view of the tool used
  • the invention is part of a method of manufacturing a turbomachine disk, in particular of large diameter, and constitutes a first step of this method, the following, which are not modified, will not be described. It relates to the rolling of a ring 7, which is a blank of the disc, to reduce its section, increasing its diameter. It uses a tool which comprises, as shown in Figure 1, a motor chuck 1 and a crazy mandrel 2, located side by side, and rotating about axes 01 and 02 parallel, and vertical in the figure.
  • the motor mandrel 1 contains a shaft 3, which belongs to the drive motor not shown and which rotates, while the idler mandrel 2 contains a shaft 4, freely mounted in bearings.
  • the mandrels 1 and 2 each comprise a circular imprint 5 or 6 around the axis 01 or 02 respectively, the indentations 5 and 6 being located at the same height and therefore having portions coming face to face.
  • the ring 7 to be laminated is retained there between the indentations 5 and 6. It also extends around the idler mandrel 2, and its most opposite part to the in-between of the sleeves 1 and 2, where the rolling occurs. extends at a distance from said idler mandrel 2, whose diameter is smaller, and in a horizontal rabbet 8 delimited between two supports 9 and 10.
  • FIG. 2 shows that the indentations 5 and 6 each comprise a bottom face 11, and two lateral faces 12 and 13 connecting to an outer face 14 of the respective mandrel 1 or 2.
  • the bottom faces 11 are cylindrical, and the faces lateral 12 and 13 conical, all these faces being defined by rectilinear generators.
  • the faces of the indentations 5 and 6 could be defined by other shapes, but provided that sharp angles are avoided for reasons which will now be described in detail: according to the invention, the bottom faces 11 are joined to the side faces 12 and 13 by respective connectors 15 and 16, which are curved, concavely sectioned surface portions which open outwardly from the indentations 5 and 6, and have a radius of curvature which is In the application envisaged, it is preferable to choose between 10 and 20 mm, and even more advantageously between 12 and 15 mm, for diameters of the blanks, typically between 300 and 1500 mm, at the end of rolling.
  • the connections 15 and 16 provide a transition without angle, and therefore continuously variable slope between the faces they connect.
  • the ring 7 has an approximately polygonal and rectangular section, whose inner and outer faces are tangent to the bottom faces 11, and whose side faces extend in front of the side faces 12 and 13 of the cavities. Connections from the side faces to the inner and outer faces should form sharp corners at the corners of the section of the ring 7, but the rolling produced by the mandrels 1 and 2, which tightens the section of the ring 7, also crushes corners and force to shape to the shape of the portions 15 and 16, which gives the appearance of Figure 3, where the faces of the ring 7 are limited by rounded connections 17.
  • This provision avoids forming during rolling right angles that cool very quickly, leading locally to deform the material outside its forgeability window and consequently to create cracks. This arrangement thus prevents cracks from forming and thus ensures good forging quality even at the lower limit of the forgeability temperature range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

Mandrels (1, 2) for the rolling of a ring (7) comprise impressions (5, 6) to accommodate the ring, which impressions have fillet radii where the various faces meet, so as to avoid the creation of sharp corners on the rolled ring (7) and the accidental formation of cracks.

Description

OUTILLAGE DE FORGEAGE POUR LA FABRICATION D'UNE COURONNE LAMINEE DE FORME, NOTAMMENT POUR LA FABRICATION D'UN DISQUE DE TURBOMACHINE  FORGING TOOLS FOR MANUFACTURING A ROLLED SHAPED CROWN, IN PARTICULAR FOR MANUFACTURING A TURBOMACHINE DISK
DESCRI PTION DESCRITION
Un aspect de l'invention présente est un outillage de forgeage pour la fabrication d'une couronne laminée de forme, notamment pour la fabrication d'un disque de turbomachine, accompli avec un tel outillage. One aspect of the present invention is a forging tool for the manufacture of a shaped rolled-up ring, in particular for the manufacture of a turbomachine disk, made with such a tool.
L'objet de l'invention est de perfectionner une étape d'ébauche de fabrication de certains disques de turbomachine, où on recourt à un forgeage, et plus précisément à un laminage. Une ébauche du disque en forme de couronne, chauffée à une température suffisante, est introduite da ns un outillage qui réduit sa section, tout en agrandissant le rayon de la couronne. On contribue ainsi à obtenir des disques de diamètre relativement grand, avec des alésages importants au centre. La fabrication du disque est ensuite poursuivie par d'autres procédés. Un outillage à deux mandrins, dépourvu toutefois des caractéristiques originales de l'invention, est décrit da ns DE-299 07 807 U.  The object of the invention is to improve a roughing stage of manufacture of certain turbomachine discs, which is used forging, and more specifically to a rolling. A blank of the crown disc, heated to a sufficient temperature, is introduced into a tool which reduces its section while enlarging the radius of the crown. This contributes to obtain discs of relatively large diameter, with large bores in the center. The manufacture of the disc is then continued by other methods. A tool with two mandrels, however, lacking the original features of the invention, is described in DE-299 07 807 U.
L'emploi de certains nouveaux alliages est envisagé pour accroître la résistance des disques. I l s'agit, par exemple, d'alliage à base de nickel ou de nickel-chrome, tels que les superalliages type René 65 ou AD730.  The use of certain new alloys is envisaged to increase the resistance of the discs. These are, for example, alloys based on nickel or nickel-chromium, such as René 65 or AD730 superalloys.
La fenêtre de températures convenant au forgeage est beaucoup plus réduite pour de tels alliages que pour les alliages classiques tels l'Inconel 718, couramment utilisé jusqu'à présent pour de telles applications. Ainsi, les pièces, sorties du four et soumises au laminage, mettent peu de temps à se refroidir trop à l'air, et on observe alors que des criques peuvent apparaître dans la couronne laminée. La qualité de la couronne est alors compromise, puisque les défauts créés ne disparaissent pas pendant les étapes suivantes de la fabrication.  The window of temperatures suitable for forging is much smaller for such alloys than for conventional alloys such as Inconel 718, commonly used so far for such applications. Thus, the parts, out of the oven and subjected to rolling, take little time to cool too much in the air, and then it is observed that cracks can appear in the rolled crown. The quality of the crown is then compromised, since the defects created do not disappear during the subsequent stages of manufacture.
Aujourd'hui, l'opération de laminage s'effectue donc en pratique en plusieurs étapes, entre lesquelles l'ébauche du disque est remise à chauffer à la température souhaitée. Cela peut beaucoup allonger le temps de fabrication, puisque plusieurs de ces remises à chauffer (typiquement de une à trois) sont en pratique nécessaires. Dans certaines variantes, on réduit leur nombre en acceptant un début d'apparition des criques, qu'on enlève alors en meulant l'ébauche à leurs endroits avant de reprendre le chauffage, puis le laminage. Il est toutefois manifeste que le meulage consomme lui-même du temps, ainsi que de la matière. Today, the rolling operation is therefore carried out in practice in several steps, between which the blank of the disk is put back to heat to the desired temperature. This can greatly lengthen the manufacturing time, since many of these heat rebates (typically one to three) are in practice necessary. In some embodiments, their number is reduced by accepting a beginning of appearance of the cracks, which are then removed by grinding the blank at their places before resuming heating, then rolling. It is clear, however, that grinding itself consumes time as well as matter.
Avec l'invention, on recherche en conséquence à éviter l'apparition de criques, au cours d'un laminage d'une couronne métallique, mais sans devoir procéder à une réchauffe, ou en tout cas avec seulement un nombre de réchauffes plus réduit, et sans devoir procéder à un usinage rectificatif manuel tel qu'un meulage.  With the invention, it is therefore sought to avoid the appearance of cracks, during rolling of a metal crown, but without having to reheat, or in any case with only a smaller number of reheats, and without having to perform a manual corrective machining such as grinding.
Pour résumer, un aspect de l'invention est un outillage de laminage d'une pièce en forme de couronne, comprenant deux mandrins tournant autour d'axes parallèles entre eux et comprenant chacun une empreinte circulaire de réception de la couronne, les empreintes comprenant une face de fond et des faces latérales, caractérisé en ce que la face de fond de chacun des mandrins est raccordée aux faces latérales par des portions incurvées ayant des rayons de courbure compris entre 10 et 20 mm.  To summarize, one aspect of the invention is a tool for rolling a piece in the form of a crown, comprising two mandrels rotating about axes parallel to each other and each comprising a circular impression of receiving the crown, the impressions comprising a bottom face and side faces, characterized in that the bottom face of each of the mandrels is connected to the side faces by curved portions having radii of curvature of between 10 and 20 mm.
Typiquement, les couronnes ont de 300 mm à 1 500 mm de diamètre extérieur en sortant de ce laminage, et sont en un alliage à base de nickel ou de nickel- chrome. Les rayons de courbure peuvent typiquement être compris de façon préférée, de 12 mm à 15 mm. Et selon un mode de réalisation courant de l'invention, la face de fond est cylindrique ou conique, définie par une génératrice rectiligne, et les faces latérales sont coniques, et définies par des génératrices rectilignes elles aussi.  Typically, the crowns have a diameter of 300 mm to 1500 mm outside this rolling, and are made of a nickel-based alloy or nickel-chromium. The radii of curvature can typically be included preferably from 12 mm to 15 mm. And according to a current embodiment of the invention, the bottom face is cylindrical or conical, defined by a rectilinear generatrix, and the lateral faces are conical, and defined by rectilinear generators too.
L'effet technique essentiel est que les couronnes, dont la section est essentiellement polygonale et généralement quadrangulaire entre les faces de fond définissant leur rayon intérieur et leur rayon extérieur, et les faces latérales définissant leurs côtés latéraux, acquièrent normalement des raccords à angles vifs entre ces faces pendant les laminages accomplis avec les outillages connus. Or, dans l'invention, ces raccords arrivent devant les portions incurvées, qui écrasent les angles vifs et maintiennent les raccords à des rayons de courbure. Les criques se formant d'abord aux angles vifs, elles ne peuvent plus apparaître, ou plus aussi facilement, avec l'invention. Un autre aspect est un procédé de fabrication d'un disque de turbomachine, comprenant une étape d'ébauche par laminage où le disque arrive en forme de couronne et dont une section est réduite par laminage, caractérisé en ce que ladite étape est accomplie par un outillage conforme à ce qui précède, la couronne étant de section essentiellement polygonale et comprenant des coins situés sur les portions incurvées, et incurvés eux aussi pendant le procédé. The essential technical effect is that the crowns, whose section is essentially polygonal and generally quadrangular between the bottom faces defining their inner radius and their outer radius, and the lateral faces defining their lateral sides, normally acquire sharp-angled connections between these faces during rolling achieved with known tools. However, in the invention, these connections arrive in front of the curved portions, which crush the sharp corners and maintain the connections to radii of curvature. Cracks forming first at sharp angles, they can not appear, or more easily, with the invention. Another aspect is a method of manufacturing a turbomachine disk, comprising a rolling roughing step where the disk arrives in the form of a ring and a section of which is reduced by rolling, characterized in that said step is accomplished by a tooling according to the above, the ring being of substantially polygonal section and having corners located on the curved portions, and also curved during the process.
L'invention sera maintenant décrite de façon plus complète, dans ses différents aspects et de façon purement illustrative, en liaison aux figures suivantes :  The invention will now be described in a more complete manner, in its various aspects and in a purely illustrative manner, with reference to the following figures:
- la figure 1 est une vue générale de l'outillage utilisé ;  - Figure 1 is a general view of the tool used;
- la figure 2 est un agrandissement de sa partie essentielle ; et  - Figure 2 is an enlargement of its essential part; and
- la figure 3 est une vue du produit obtenu.  - Figure 3 is a view of the product obtained.
L'invention fait partie d'un procédé de fabrication d'un disque de turbomachine, notamment de grand diamètre, et constitue une première étape de ce procédé, dont les suivantes, qui ne sont pas modifiées, ne seront pas décrites. Elle concerne le laminage d'une couronne 7, qui est une ébauche du disque, pour réduire sa section, en augmentant son diamètre. Elle recourt à un outillage qui comprend, comme le montre la figure 1, un mandrin moteur 1 et un mandrin fou 2, situés côte à côte, et tournant autour d'axes 01 et 02 parallèles, et verticaux sur la figure. Le mandrin moteur 1 contient un arbre 3, qui appartient au moteur d'entraînement non représenté et qui le fait tourner, alors que le mandrin fou 2 contient un arbre 4, monté libre dans des paliers. Les mandrins 1 et 2 comprennent chacun une empreinte 5 ou 6 circulaire autour de l'axe 01 ou 02 respectif, les empreintes 5 et 6 étant situées à une même hauteur et ayant donc des portions venant face à face. La couronne 7 à laminer est retenue là entre les empreintes 5 et 6. Elle s'étend par ailleurs autour du mandrin fou 2, et sa partie la plus opposée à l'entre-deux des manchons 1 et 2, où se produit le laminage, s'étend à distance dudit mandrin fou 2, dont le diamètre est plus petit, et dans une feuillure 8 horizontale, délimitée entre deux supports 9 et 10.  The invention is part of a method of manufacturing a turbomachine disk, in particular of large diameter, and constitutes a first step of this method, the following, which are not modified, will not be described. It relates to the rolling of a ring 7, which is a blank of the disc, to reduce its section, increasing its diameter. It uses a tool which comprises, as shown in Figure 1, a motor chuck 1 and a crazy mandrel 2, located side by side, and rotating about axes 01 and 02 parallel, and vertical in the figure. The motor mandrel 1 contains a shaft 3, which belongs to the drive motor not shown and which rotates, while the idler mandrel 2 contains a shaft 4, freely mounted in bearings. The mandrels 1 and 2 each comprise a circular imprint 5 or 6 around the axis 01 or 02 respectively, the indentations 5 and 6 being located at the same height and therefore having portions coming face to face. The ring 7 to be laminated is retained there between the indentations 5 and 6. It also extends around the idler mandrel 2, and its most opposite part to the in-between of the sleeves 1 and 2, where the rolling occurs. extends at a distance from said idler mandrel 2, whose diameter is smaller, and in a horizontal rabbet 8 delimited between two supports 9 and 10.
La figure 2 montre que les empreintes 5 et 6 comportent chacune une face de fond 11, et deux faces latérales 12 et 13 se raccordant à une face extérieure 14 du mandrin respectif 1 ou 2. Les faces de fond 11 sont cylindriques, et les faces latérales 12 et 13 coniques, toutes ces faces étant définies par des génératrices rectilignes. En variante, les faces des empreintes 5 et 6 pourrait être définies par d'autres formes, mais à condition d'éviter les angles vifs pour des raisons qu'on va maintenant détailler : conformément à l'invention, les faces de fond 11 sont jointes aux faces latérales 12 et 13 par des raccords 15 et 16 respectifs, qui sont des portions de surfaces dont les sections sont incurvées, à concavité s'ouvra nt vers l'extérieur des empreintes 5 et 6, et possèdent un rayon de courbure qu'on peut choisir, dans l'application envisagée, avantageusement entre 10 et 20 mm, et encore plus avantageusement de 12 à 15 mm, pour des diamètres des ébauches typiquement comprises entre 300 et 1 500 mm, à la fin du laminage. Les raccords 15 et 16 ménagent une transition sans angle, et donc à variation continue de pente, entre les faces qu'elles relient. FIG. 2 shows that the indentations 5 and 6 each comprise a bottom face 11, and two lateral faces 12 and 13 connecting to an outer face 14 of the respective mandrel 1 or 2. The bottom faces 11 are cylindrical, and the faces lateral 12 and 13 conical, all these faces being defined by rectilinear generators. As a variant, the faces of the indentations 5 and 6 could be defined by other shapes, but provided that sharp angles are avoided for reasons which will now be described in detail: according to the invention, the bottom faces 11 are joined to the side faces 12 and 13 by respective connectors 15 and 16, which are curved, concavely sectioned surface portions which open outwardly from the indentations 5 and 6, and have a radius of curvature which is In the application envisaged, it is preferable to choose between 10 and 20 mm, and even more advantageously between 12 and 15 mm, for diameters of the blanks, typically between 300 and 1500 mm, at the end of rolling. The connections 15 and 16 provide a transition without angle, and therefore continuously variable slope between the faces they connect.
La couronne 7 possède une section approximativement polygonale et rectangulaire, dont les faces intérieure et extérieure sont tangentes aux faces de fond 11, et dont les faces latérales s'étendent devant les faces latérales 12 et 13 des empreintes. Les raccordements des faces latérales aux faces intérieure et extérieure devraient former des angles vifs, aux coins de la section de la couronne 7, mais le laminage produit pa r les mandrins 1 et 2, qui resserre la section de la couronne 7, écrase aussi ses coins et les force à se modeler à la forme des portions 15 et 16, ce qui donne l'aspect de la figure 3, où les faces de la couronne 7 sont limitées par des raccords arrondis 17. Cette disposition évite de former lors du laminage des angles droits qui se refroidissent très rapidement, conduisant localement à déformer le matériau en dehors de sa fenêtre de forgeabilité et en conséquence à créer des criques. Cette disposition empêche donc les criques de se former et assure donc une bonne qualité de forgeage, même à la limite inférieure de la plage de température de forgeabilité.  The ring 7 has an approximately polygonal and rectangular section, whose inner and outer faces are tangent to the bottom faces 11, and whose side faces extend in front of the side faces 12 and 13 of the cavities. Connections from the side faces to the inner and outer faces should form sharp corners at the corners of the section of the ring 7, but the rolling produced by the mandrels 1 and 2, which tightens the section of the ring 7, also crushes corners and force to shape to the shape of the portions 15 and 16, which gives the appearance of Figure 3, where the faces of the ring 7 are limited by rounded connections 17. This provision avoids forming during rolling right angles that cool very quickly, leading locally to deform the material outside its forgeability window and consequently to create cracks. This arrangement thus prevents cracks from forming and thus ensures good forging quality even at the lower limit of the forgeability temperature range.

Claims

REVENDICATIONS
1) Outillage de laminage d'une pièce en forme de couronne, comprenant deux mandrins (1, 2) tournant autour d'axes (01, 02) parallèles entre eux et comprenant chacun une empreinte circulaire de réception de la couronne, les empreintes (5, 6) comprenant une face de fond (11) et des faces latérales (12, 13), caractérisé en ce que la face de fond de chacun des mandrins est raccordée aux faces latérales par des portions incurvées (14, 15) ayant des rayons de courbure compris entre 10 mm et 20 mm. 1) Rolling tool for a crown-shaped workpiece, comprising two mandrels (1, 2) rotating about axes (01, 02) parallel to each other and each comprising a circular impression of the crown, the impressions ( 5, 6) comprising a bottom face (11) and side faces (12, 13), characterized in that the bottom face of each of the mandrels is connected to the lateral faces by curved portions (14, 15) having radii of curvature between 10 mm and 20 mm.
2) Outillage de laminage selon la revendication 1, caractérisé en ce que les rayons de courbure sont compris entre 12 mm et 15 mm.  2) rolling tool according to claim 1, characterized in that the radii of curvature are between 12 mm and 15 mm.
3) Outillage de laminage selon l'une quelconque des revendications 1 ou 3) rolling tool according to any one of claims 1 or
2, caractérisé en ce que la face de fond (11) est cylindrique ou conique définie par une génératrice rectiligne, et les faces latérales sont coniques définies par des génératrices rectilignes. 2, characterized in that the bottom face (11) is cylindrical or conical defined by a rectilinear generatrix, and the lateral faces are conical defined by straight generatrices.
4) Outillage de laminage selon l'une quelconque des revendications 1 à 4) Rolling tool according to any one of claims 1 to
3, caractérisé en ce que les portions incurvées, qui ont une concavité s'ouvrant vers l'extérieur des empreintes (5, 6), raccordent les faces latérales par un profil dépourvu d'angle. 3, characterized in that the curved portions, which have a concavity opening towards the outside of the cavities (5, 6), connect the lateral faces by a profile devoid of angle.
5) Procédé de fabrication d'un disque de turbomachine, comprenant une étape d'ébauche par laminage où le disque arrive en forme de couronne (7) dont une section est réduite par laminage, caractérisé en ce que ladite étape est accomplie par un outillage conforme à l'une quelconque des revendications précédentes, la couronne étant de section essentiellement polygonale et comprenant des coins situés sur les portions incurvées, et incurvés eux aussi pendant le procédé.  5) A method of manufacturing a turbomachine disk, comprising a rolling roughing step where the disc arrives in the form of a ring (7), a section of which is reduced by rolling, characterized in that said step is accomplished by a tooling according to any one of the preceding claims, the ring being of substantially polygonal section and having corners on the curved portions, and also curved during the process.
6) Procédé de fabrication d'un disque de turbomachine selon la revendication 5, caractérisé en ce que le disque est un alliage à base de nickel.  6) A method of manufacturing a turbomachine disk according to claim 5, characterized in that the disk is a nickel-based alloy.
7) Procédé de fabrication d'un disque de turbomachine selon la revendication 6, caractérisé en ce que le disque est un alliage à base de nickel et de chrome. 8) Procédé de fabrication d'un disque de turbine selon la revendication 7, caractérisé en ce que le disque est un superalliage René 65. 7) A method of manufacturing a turbomachine disk according to claim 6, characterized in that the disc is an alloy based on nickel and chromium. 8) A method of manufacturing a turbine disk according to claim 7, characterized in that the disk is a René 65 superalloy.
9) Procédé de fabrication d'un disque de turbine selon la revendication 7, caractérisé en ce que le disque est un superalliage AD730.  9) A method of manufacturing a turbine disk according to claim 7, characterized in that the disk is an AD730 superalloy.
10) Procédé de fabrication d'un disque de turbine selon l'une quelconque des revendications 5 à 9, caractérisé en ce que la couronne a un diamètre compris entre 300 mm et 1 500 mm.  10) A method of manufacturing a turbine disk according to any one of claims 5 to 9, characterized in that the ring has a diameter of between 300 mm and 1500 mm.
EP15705675.5A 2014-02-05 2015-02-02 Forging tool for the manufacture of a shaped rolled ring, notably for the manufacture of a turbomachine disc Active EP3086891B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1450889A FR3017060B1 (en) 2014-02-05 2014-02-05 FORGING TOOLS FOR MANUFACTURING A ROLLED SHAPED CROWN, IN PARTICULAR FOR MANUFACTURING A TURBOMACHINE DISK
PCT/FR2015/050229 WO2015118249A1 (en) 2014-02-05 2015-02-02 Forging tool for the manufacture of a shaped rolled ring, notably for the manufacture of a turbomachine disc

Publications (2)

Publication Number Publication Date
EP3086891A1 true EP3086891A1 (en) 2016-11-02
EP3086891B1 EP3086891B1 (en) 2017-12-27

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Application Number Title Priority Date Filing Date
EP15705675.5A Active EP3086891B1 (en) 2014-02-05 2015-02-02 Forging tool for the manufacture of a shaped rolled ring, notably for the manufacture of a turbomachine disc

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US (1) US10543523B2 (en)
EP (1) EP3086891B1 (en)
CN (1) CN105934293B (en)
BR (1) BR112016017512B1 (en)
CA (1) CA2945500C (en)
FR (1) FR3017060B1 (en)
RU (1) RU2687324C1 (en)
WO (1) WO2015118249A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104226868B (en) * 2014-09-24 2017-01-11 武汉理工大学 Valve body composite rolling ring forming method for ball valve
FR3138336A1 (en) * 2022-07-28 2024-02-02 Safran Aircraft Engines Process for obtaining a metallic annular crown

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR349947A (en) * 1904-05-28 1905-07-27 Louis Gasne Rolling process for wheel tires
SU651525A1 (en) * 1977-01-03 1979-10-25 Предприятие П/Я Г-4585 Unit for rolling-out rings
DD235577A1 (en) 1985-04-01 1986-05-14 Waelzlager Normteile Veb PROCESS FOR PROFILING COLD ROLLING OF RINGS WITH TANGENTIAL EXPANSION
SU1488083A1 (en) * 1987-03-25 1989-06-23 1-Й Государственный Подшипниковый Завод Apparatus for expanding rings
JPH03268833A (en) * 1990-03-16 1991-11-29 Daido Steel Co Ltd Manufacture of different profile product by cold rolling mill
JP3429157B2 (en) * 1997-04-03 2003-07-22 山陽特殊製鋼株式会社 Large diameter ring manufacturing method of austenitic stainless steel
DE29907807U1 (en) * 1999-04-28 1999-07-01 Dr. Schiller Walz- und Werkzeugtechnik GmbH, 14943 Luckenwalde Device for producing ring-shaped workpieces by cold forming
JP4202000B2 (en) * 2000-07-10 2008-12-24 トヨタ自動車株式会社 Mandrel for ring rolling
FR2873940B1 (en) 2004-08-03 2008-01-04 Snecma Moteurs Sa METHOD FOR MANUFACTURING CONSTITUENT PIECES OF A HOLLOW DRAW BY ROLLING
CN201186286Y (en) 2008-02-28 2009-01-28 石家庄钢铁有限责任公司 Roller caliber structure for avoiding goffer produced on surface of large size hot-rolling round steel
CN101648332B (en) * 2009-06-10 2011-11-09 刘岷 Forming method of precision cold rolled ring of railway bearing ring piece
CN102688962B (en) * 2012-05-08 2014-06-25 天马轴承集团股份有限公司 Symmetric rolling forming method of large inner-step ring parts
CN202963336U (en) 2012-10-12 2013-06-05 中航卓越锻造（无锡）有限公司 Special-shaped ring forging die
CN104148396A (en) * 2014-06-30 2014-11-19 贵州安大航空锻造有限责任公司 Core roller and roll forming method of large inner-step-section ring pieces

Also Published As

Publication number Publication date
CA2945500A1 (en) 2015-08-13
CN105934293B (en) 2018-02-02
US20160339504A1 (en) 2016-11-24
EP3086891B1 (en) 2017-12-27
CA2945500C (en) 2022-09-06
US10543523B2 (en) 2020-01-28
CN105934293A (en) 2016-09-07
BR112016017512A2 (en) 2017-08-08
RU2687324C1 (en) 2019-05-13
FR3017060A1 (en) 2015-08-07
WO2015118249A1 (en) 2015-08-13
BR112016017512B1 (en) 2022-11-01
FR3017060B1 (en) 2016-08-26

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