EP3080349B1 - Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table - Google Patents

Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table Download PDF

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Publication number
EP3080349B1
EP3080349B1 EP14821759.9A EP14821759A EP3080349B1 EP 3080349 B1 EP3080349 B1 EP 3080349B1 EP 14821759 A EP14821759 A EP 14821759A EP 3080349 B1 EP3080349 B1 EP 3080349B1
Authority
EP
European Patent Office
Prior art keywords
cutting
preform
template
tabletop
cutting table
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
EP14821759.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3080349A1 (fr
Inventor
Richard Mathon
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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Publication date
Application filed by SNECMA Services SA, SNECMA SAS filed Critical SNECMA Services SA
Publication of EP3080349A1 publication Critical patent/EP3080349A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • B26F3/008—Energy dissipating devices therefor, e.g. catchers; Supporting beds therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/24—Devices specially adapted for cutting-out samples
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F2210/00—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products
    • B26F2210/12—Perforating, punching, cutting-out, stamping-out, severing by means other than cutting of specific products of fabrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/667—Tool carrier or guide affixed to work during cutting
    • Y10T83/68—Entirely work supported

Definitions

  • the present invention relates to the general field of fibrous preforms obtained by three-dimensional weaving and comprising two distinct parts which have contours of different shapes and which are interconnected by a debonding zone.
  • Some fibrous preforms obtained by three-dimensional weaving incorporate debonding zones which make it possible to produce composite material parts with a complex geometry from the same flat-woven preform.
  • debonding zones which make it possible to produce composite material parts with a complex geometry from the same flat-woven preform.
  • These are, for example, aeronautical turbomachine fan blade platforms that can be obtained from fibrous ⁇ -shaped preforms with a base and two legs forming stiffeners, the base on the one hand and the two legs on the other hand constituting two distinct parts which are interconnected by a debonding zone.
  • the document EP 2006074 A1 discloses a cutting table for cutting a fibrous preform.
  • the invention therefore aims to provide a cutting table and a cutting method does not have the aforementioned drawbacks.
  • this object is achieved by means of a cutting table for cutting a fibrous preform obtained by three-dimensional weaving and comprising two parts which are interconnected by at least one debonding zone and which have contours of different forms, the cutting table comprising a plate provided with a impression intended to receive, flatly, one of the parts of the preform to be cut, martyr plates intended to be inserted between the parts of the preform to be cut and to be fixed on the plate, at least one cutting template to be applied on the portion of the fibrous preform that is not positioned in the cavity, and means for applying a compacting pressure on the cutting template.
  • the cutting table according to the invention is remarkable in that it integrates within the same tooling multiple constraints, such as the homogeneous and precise compaction of the parts of the preform during its cutting, a precise cutting of these parts without risk of deformation or removal of fibers, and a limited risk of injury to the operator.
  • the cutting table according to the invention facilitates the cutting of fibrous preforms and limits the problems of reproducibility.
  • the cutting table may comprise a cylinder mounted vertically above the plate and intended to receive the cutting template for the application of a compacting pressure thereon.
  • Each martyred plate may be intended to be fixed on the plate by means of indexing screws.
  • the imprint of the tray may have a profile corresponding to a common contour to the two parts of the preform to be cut.
  • the cutting template comprises at least two indexing fingers to ensure its positioning on the preform.
  • the cutting template advantageously comprises a beveled edge for facilitating the passage of a cutting tool.
  • the cutting template advantageously comprises at its periphery a compacting lip intended to optimize the maintenance of the preform during its cutting.
  • the tray is preferably rotatable, circular, horizontal and comprises an upper surface which is provided with the imprint, which facilitates the cutting work by the operator.
  • the method may comprise a preliminary pre-cutting waterjet preform in a common outline encompassing the contours of the two parts of the preform.
  • the invention applies to the cutting of all fibrous preforms obtained by three-dimensional weaving (3D) and comprising two parts which are interconnected by at least one debonding zone and which have contours of different shapes.
  • Such fibrous preforms make it possible to produce, from the same flat woven preform, composite material parts with a complex geometry.
  • FIGS. Figures 1A to 1C An example of a non-limiting application is that of the fibrous preforms used for the manufacture of fan blade platforms of an aerospace turbomachine such as that illustrated in FIGS. Figures 1A to 1C .
  • a fiber preform 10 which is obtained by 3D weaving and which, after shaping, resin injection or densification by a matrix and possible machining, provides a fan blade platform.
  • a weave 3D including interlock weave, may include 2D weaves on the surface.
  • Different 3D weave armors can be used, such as interlock, multi-satin or multi-veil armor, for example, as described in particular in the document WO 2006/136755 .
  • the fiber preform 10 has two distinct parts in the thickness, namely an upper portion 12 and a lower portion 14, which are each formed of a plurality of superimposed layers of yarns and which are bonded to one another by a debonding zone 16 to form a single fibrous structure. At this debonding zone 16, the yarn layers of the upper portion of the fibrous preform are bonded to the yarn layers of the lower portion (and vice versa).
  • the portions 12, 14 of the fibrous preform have external contours which are different.
  • the Figure 1A thus represents the outer contour 12a of the upper part 12 of the preform (in gray), while the Figure 1B shows the outer contour 14a of the lower portion 14 of the preform (with the profile of the dashed upper part).
  • the initial step of the cutting process is the 3D weaving of a fibrous structure 20 such as that illustrated in FIG. figure 2 , this fibrous structure being formed by two distinct parts (in the direction of the thickness) joined by a predefined deliming zone 22.
  • This figure shows the warp and weft directions of the constituent yarns of the fibrous structure, as well as the direction F of advancement of the structure during its weaving.
  • the next step is to perform a water jet precut of the fibrous structure according to a common contour C which includes the contours of the two parts of the fibrous preform to obtain.
  • This operation makes it possible to obtain the pre-cut preform 30 represented on the figure 3 , this pre-cut preform having two distinct parts (in the thickness) connected by the deliming zone 16 previously arranged.
  • the preform 30 thus pre-cut is then positioned on a cutting table 100 according to the invention and shown schematically on the figure 4 .
  • This cutting table 100 comprises in particular a frame 102 on which is mounted a horizontal plate 104 which is rotatable about a vertical axis AA and whose upper surface 106 is provided with a recess 108 intended to receive flat one of the parts of the preform to be cut.
  • the imprint 108 has a profile that corresponds to the contour C common to the two parts to be cut from the preform.
  • the portion 32 of the preform 30 which is positioned in the recess 108 of the rotary table 104 of the cutting table is that which is intended to form, after cutting, the lower part of the fiber preform.
  • Martyr plates 110 (here two in number) are then inserted between the two parts of the preform to be cut ( figure 5 ). These hammer plates 110 have a profile adapted to the outer contour of the debonding zone 16 of the precut pre-cut 30 and protect the portion 32 of the preform which is positioned in the impression of the turntable.
  • the martyr plates 110 thus positioned on the cutting table, they are fixed on the turntable 104 thereof, for example each by means of two indexing screws 112 ( figure 6 ), which prevents them from moving during the actual cutting operation.
  • the next step illustrated by the figure 7 consists in applying on the portion 34 of the fibrous preform which is not positioned in the recess of the rotary table of the cutting table a cutting template 114, this cutting template having here an outer contour 114a which corresponds to the outer contour of the upper part 12 of the cut preform.
  • the cutting template 114 advantageously comprises two indexing fingers 116 relative to the hammer plates 110 to ensure the positioning of the cutting template on the precut pre-cut.
  • a compacting pressure is applied to the cutting template 114 to allow the fibers of the preform to remain at the edge of the cutting template to prevent them from moving during the actual cutting operation.
  • the cutting template 114 is fixed horizontally on the free end of a jack 118 mounted vertically above the rotary plate 104 of the cutting table.
  • the compacting pressure applied by the jack on the cutting template is typically between 3 and 5 bar.
  • the cutting of the portion 34 of the preform along the contour of the cutting template can begin.
  • This cutting can be performed in various ways known per se, for example manually using a steel blade or ceramic.
  • the hatched area of the portion 34 of the fiber preform corresponds to the area to be cut during this step. Note that the rotation around the vertical axis AA of the plate 104 of the cutting table facilitates this cutting step by allowing the operator to always have access to the cutting area.
  • the portion 34 of the fibrous preform 30 corresponds to the upper portion 12 of the cut preform 10 shown in FIGS. Figures 1A to 1C .
  • the cutting template is then removed from the cutting table and the preform 30 is transferred to another cutting table 100 'similar to that previously described ( figures 8 and 9 ).
  • This cutting table 100 ' has in particular a turntable 104 'having an imprint 108' whose profile corresponds to the outer contour of the portion 34 of the preform that has just been cut.
  • the fiber preform 30 is thus placed on the cutting table 100 'with its upper portion 12 which is positioned in the recess 108' of the turntable 104 '.
  • the operations are then linked as for the cutting of the portion 34 of the preform.
  • the same hammer plates 110 are mounted and fixed on the turntable 104 'and another cutting template 114' is applied to the portion 32 to be cut from the preform, this cutting template having here an outer contour 114'a which corresponds to the outer contour of the lower part 12 of the cut preform ( figure 10 ).
  • the cutting of the portion 32 of the fiber preform along the contour of this other cutting template 114' can then be performed.
  • the hatched area of the portion 32 of the fibrous preform corresponds to the area that is cut.
  • the portion 32 of the fibrous preform 30 corresponds to the lower portion 14 of the cut preform 10 shown in FIGS. Figures 1A to 1C .
  • the cutting template 114 'and the martyr plates 110 can then be removed to allow ejection of the fiber preform. This corresponds to that represented on the Figures 1A to 1C .
  • the cutting templates 114, 114 'each comprise a bevelled edge 120 which is intended to facilitate the passage of the cutting blade 122.
  • this beveled edge 120 may form an angle ⁇ of approximately 45 ° with the vertical line of chopped off.
  • the cutting templates 114, 114 'each comprise at their periphery a compacting lip 124 which is intended to optimize the maintenance of the preform 30 during its cutting.
  • a compacting lip 124 (having for example a width of about 5 mm) thus makes it possible to limit the application of the pressure to an area situated around the periphery of the zone to be cut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Moulding By Coating Moulds (AREA)
  • Reinforced Plastic Materials (AREA)
  • Details Of Cutting Devices (AREA)
EP14821759.9A 2013-12-11 2014-12-01 Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table Active EP3080349B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1362408A FR3014455B1 (fr) 2013-12-11 2013-12-11 Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table
PCT/FR2014/053092 WO2015086947A1 (fr) 2013-12-11 2014-12-01 Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table

Publications (2)

Publication Number Publication Date
EP3080349A1 EP3080349A1 (fr) 2016-10-19
EP3080349B1 true EP3080349B1 (fr) 2017-11-22

Family

ID=50482975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14821759.9A Active EP3080349B1 (fr) 2013-12-11 2014-12-01 Table de coupe pour la decoupe d'une preforme fibreuse obtenue par tissage tridimensionnel et procede de decoupe utilisant une telle table

Country Status (9)

Country Link
US (1) US10239223B2 (pt)
EP (1) EP3080349B1 (pt)
JP (1) JP6441931B2 (pt)
CN (1) CN105814253B (pt)
BR (1) BR112016013445B1 (pt)
CA (1) CA2932995C (pt)
FR (1) FR3014455B1 (pt)
RU (1) RU2658280C1 (pt)
WO (1) WO2015086947A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106222986B (zh) * 2016-08-31 2019-04-16 宁波纺织仪器厂 自动制样机
CN110154145A (zh) * 2018-03-30 2019-08-23 苏州吉耐特信息科技有限公司 一种自回收的pcb电路板的打孔设备
CN108772882A (zh) * 2018-06-15 2018-11-09 湖州织里德土服饰有限公司 一种可拆卸式童装裁剪装置
USD953785S1 (en) 2020-03-29 2022-06-07 Yajun Hu Portable cloth cutting table

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US572320A (en) * 1896-12-01 Cutter for bevel-cards
US2325311A (en) * 1942-05-18 1943-07-27 Freeman Co Louis G Die for bevel cutting
US2654428A (en) * 1949-10-19 1953-10-06 Martincic Anton Multiple notching die
US4611519A (en) * 1984-09-13 1986-09-16 Hagerty Lloyd A Radius corner forming apparatus and method
JPH0513688U (ja) * 1991-05-28 1993-02-23 いすゞ自動車株式会社 繊維マツト等の切断用治具
JP3557646B2 (ja) * 1994-05-27 2004-08-25 株式会社島精機製作所 裁断機及びシート材送り裁断方法
US5746104A (en) * 1996-08-23 1998-05-05 Wilmington Rubber & Gasket Co., Inc. Two-piece hole punch
FR2887601B1 (fr) 2005-06-24 2007-10-05 Snecma Moteurs Sa Piece mecanique et procede de fabrication d'une telle piece
FR2892339B1 (fr) * 2005-10-21 2009-08-21 Snecma Sa Procede de fabrication d'une aube de turbomachine composite, et aube obtenue par ce procede
BRPI0708862A2 (pt) * 2006-03-15 2011-06-14 Toray Industries processo para a fabricaÇço de uma prÉ-forma e aparelho para isso
DE102007012609B4 (de) * 2007-03-13 2010-05-12 Eads Deutschland Gmbh Legevorrichtung und Legestempel zur Verwendung in einer Legevorrichtung
JP4952682B2 (ja) * 2008-08-10 2012-06-13 日立化成工業株式会社 積層板の端部切断方法及び積層板の端部切断装置
FR2939130B1 (fr) * 2008-11-28 2011-09-16 Snecma Propulsion Solide Procede de fabrication de piece de forme de forme complexe en materiau composite.
CN201424599Y (zh) * 2009-05-13 2010-03-17 浙江工业大学 布料冲裁装置
DE102009021591B4 (de) * 2009-05-15 2012-12-20 Eads Deutschland Gmbh Verfahren zum Preformen eines Textilienhalbzeugs und Preform-Vorrichtung
US9604389B2 (en) * 2012-02-17 2017-03-28 Albany Engineered Composites, Inc. Pi-shaped preform with bias fibers
US9447986B2 (en) * 2013-06-12 2016-09-20 Timothy J. Brisson Cutting tool assembly for HVAC vent opening and the like

Also Published As

Publication number Publication date
CA2932995C (fr) 2021-06-22
CA2932995A1 (fr) 2015-06-18
EP3080349A1 (fr) 2016-10-19
JP2017501891A (ja) 2017-01-19
CN105814253A (zh) 2016-07-27
JP6441931B2 (ja) 2018-12-19
US20160375601A1 (en) 2016-12-29
US10239223B2 (en) 2019-03-26
FR3014455A1 (fr) 2015-06-12
FR3014455B1 (fr) 2016-01-15
BR112016013445B1 (pt) 2021-12-14
CN105814253B (zh) 2018-03-13
BR112016013445A2 (pt) 2017-08-08
WO2015086947A1 (fr) 2015-06-18
RU2658280C1 (ru) 2018-06-19

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