EP3086891B1 - Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine - Google Patents

Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine Download PDF

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Publication number
EP3086891B1
EP3086891B1 EP15705675.5A EP15705675A EP3086891B1 EP 3086891 B1 EP3086891 B1 EP 3086891B1 EP 15705675 A EP15705675 A EP 15705675A EP 3086891 B1 EP3086891 B1 EP 3086891B1
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EP
European Patent Office
Prior art keywords
disc
ring
manufacture
rolling
manufacturing
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Active
Application number
EP15705675.5A
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German (de)
English (en)
French (fr)
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EP3086891A1 (fr
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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    • 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 .
  • certain new alloys are envisaged to increase the resistance of the discs.
  • These are, for example, nickel-based alloys or nickel-chromium, such as Rene 65 or AD730 superalloys.
  • 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 are from 300 mm to 1500 mm outside diameter leaving this rolling, and are made of an alloy based on nickel 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.
  • 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 tools that include, as shown in figure 1 , a motor mandrel 1 and a crazy mandrel 2, located side by side, and rotating about axes O1 and O2 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 respective axis O1 or O2, 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.
  • the figure 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 lateral faces 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 portions of surfaces whose sections are curved, concavely opening towards the outside of the indents 5 and 6, and have a radius of curvature that 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 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.
  • the connections of the lateral 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 its corners and forces them to shape to the shape of the portions 15 and 16, which gives the appearance of the figure 3 , where the faces of the ring 7 are limited by rounded connections 17.
  • This arrangement avoids forming during the rolling right angles which cool very rapidly, leading locally to deform the material outside of its forgeability window and consequently to create creeks. 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)
EP15705675.5A 2014-02-05 2015-02-02 Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine Active EP3086891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1450889A FR3017060B1 (fr) 2014-02-05 2014-02-05 Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine
PCT/FR2015/050229 WO2015118249A1 (fr) 2014-02-05 2015-02-02 Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine

Publications (2)

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

Family

ID=50483158

Family Applications (1)

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EP15705675.5A Active EP3086891B1 (fr) 2014-02-05 2015-02-02 Outillage de forgeage pour la fabrication d'une couronne laminee de forme, notamment pour la fabrication d'un disque de turbomachine

Country Status (8)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104226868B (zh) * 2014-09-24 2017-01-11 武汉理工大学 一种球阀阀体复合轧环成形方法
FR3138336A1 (fr) * 2022-07-28 2024-02-02 Safran Aircraft Engines Procédé d’obtention d’une couronne annulaire métallique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR349947A (fr) 1904-05-28 1905-07-27 Louis Gasne Procédé de laminage des bandages de roues
DD235577A1 (de) 1985-04-01 1986-05-14 Waelzlager Normteile Veb Verfahren zum profilierenden kaltwalzen von ringen mit tangentialer aufweitung
JPH03268833A (ja) 1990-03-16 1991-11-29 Daido Steel Co Ltd 冷間ローリングミルによる異形断面製品の製造方法
JPH10277692A (ja) 1997-04-03 1998-10-20 Sanyo Special Steel Co Ltd オーステナイト系及びフェライト系ステンレス鋼の大径リング製造方法
DE29907807U1 (de) 1999-04-28 1999-07-01 Dr. Schiller Walz- und Werkzeugtechnik GmbH, 14943 Luckenwalde Vorrichtung zum Herstellen ringförmiger Werkstücke durch Kaltumformen
JP2002086241A (ja) 2000-07-10 2002-03-26 Toyota Motor Corp リングローリング用マンドレル
EP1623792A1 (fr) 2004-08-03 2006-02-08 Snecma Procédé de fabrication de pièces constitutives d'une aube creuse par laminage
CN202963336U (zh) 2012-10-12 2013-06-05 中航卓越锻造（无锡）有限公司 一种异型环锻件模具

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU651525A1 (ru) * 1977-01-03 1979-10-25 Предприятие П/Я Г-4585 Установка дл раскатки колец
SU1488083A1 (ru) * 1987-03-25 1989-06-23 1-Й Государственный Подшипниковый Завод Устройство дл раскатки колец
CN201186286Y (zh) 2008-02-28 2009-01-28 石家庄钢铁有限责任公司 一种避免大规格热轧圆钢表面产生皱褶的轧辊孔型结构
CN101648332B (zh) * 2009-06-10 2011-11-09 刘岷 一种铁路轴承环件的精密冷辗环成形方法
CN102688962B (zh) * 2012-05-08 2014-06-25 天马轴承集团股份有限公司 一种大型内台阶环件对称轧制成形方法
CN104148396A (zh) * 2014-06-30 2014-11-19 贵州安大航空锻造有限责任公司 一种芯辊及大型内台阶截面环件的轧制成形方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR349947A (fr) 1904-05-28 1905-07-27 Louis Gasne Procédé de laminage des bandages de roues
DD235577A1 (de) 1985-04-01 1986-05-14 Waelzlager Normteile Veb Verfahren zum profilierenden kaltwalzen von ringen mit tangentialer aufweitung
JPH03268833A (ja) 1990-03-16 1991-11-29 Daido Steel Co Ltd 冷間ローリングミルによる異形断面製品の製造方法
JPH10277692A (ja) 1997-04-03 1998-10-20 Sanyo Special Steel Co Ltd オーステナイト系及びフェライト系ステンレス鋼の大径リング製造方法
DE29907807U1 (de) 1999-04-28 1999-07-01 Dr. Schiller Walz- und Werkzeugtechnik GmbH, 14943 Luckenwalde Vorrichtung zum Herstellen ringförmiger Werkstücke durch Kaltumformen
JP2002086241A (ja) 2000-07-10 2002-03-26 Toyota Motor Corp リングローリング用マンドレル
EP1623792A1 (fr) 2004-08-03 2006-02-08 Snecma Procédé de fabrication de pièces constitutives d'une aube creuse par laminage
CN202963336U (zh) 2012-10-12 2013-06-05 中航卓越锻造（无锡）有限公司 一种异型环锻件模具

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ALLWOOD, JULIAN M. ET AL.: "The Development of Ring Rolling Technology", STEEL RESEARCH INT., vol. 76, no. 2 / 3, 2005, pages 111 - 120, 491-507, XP055523170

Also Published As

Publication number Publication date
US10543523B2 (en) 2020-01-28
EP3086891A1 (fr) 2016-11-02
BR112016017512A2 (ru) 2017-08-08
CA2945500C (fr) 2022-09-06
BR112016017512B1 (pt) 2022-11-01
CA2945500A1 (fr) 2015-08-13
CN105934293B (zh) 2018-02-02
FR3017060A1 (fr) 2015-08-07
CN105934293A (zh) 2016-09-07
FR3017060B1 (fr) 2016-08-26
RU2687324C1 (ru) 2019-05-13
WO2015118249A1 (fr) 2015-08-13
US20160339504A1 (en) 2016-11-24

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