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Braided fiber structure for forming shell preforms

A technology of fiber structure and shell, applied in the field of manufacturing fiber structure

Active Publication Date: 2022-01-28
SAFRAN AIRCRAFT ENGINES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some casings still have room for further improvement in terms of mechanical resistance to blade impact when the blade breaks away and is projected into the casing

Method used

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  • Braided fiber structure for forming shell preforms
  • Braided fiber structure for forming shell preforms
  • Braided fiber structure for forming shell preforms

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The invention is generally applicable to fibrous structures for the manufacture of composite material shells comprising a barrel or shell with annular flanges at its ends.

[0043] Such as figure 1 As shown, the fibrous structure 100 is produced in known manner by weaving using a Jacquard-type loom 5 , on which a bundle of warp threads or strands 20 is arranged in multiple layers, the warp threads being joined by weft threads or strands 30 .

[0044] The fiber structure is realized by three-dimensional weaving. The terms "three-dimensional weaving" or "3D weaving" are used herein to describe a weaving method in which at least some of the weft yarns join warp yarns to several layers of warp yarns and vice versa. The fiber structure can have an interlocking weave. An "interlocking" weave is a weave in which each layer of weft yarns joins several layers of warp yarns, and all yarns of the same weft yarn column have the same motion in the plane of weaving. Other weaves a...

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PUM

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Abstract

The invention relates to a fibrous structure (100) in the form of a strip extending longitudinally (X) for a given length (L100) between a proximal part (110) and a distal part (120), while A given length (I100) extends laterally (Y) between the first side edge (101) and the second side edge (102), and the fiber structure comprises longitudinally extending multilayer warp yarns or strands and laterally extending Multilayer or three-dimensional weaving of multiple layers of weft yarns or strands, characterized in that the first part (P1) of the fibrous structure comprises carbon fiber weft yarns or strands between the proximal part (110) and the middle part of the fibrous structure, and wherein, A second portion (P2) of the fiber structure comprises glass fiber wefts or strands between the intermediate member and the distal member.

Description

technical field [0001] The present invention relates to a process for the manufacture of fiber textures which can be used in particular, but not exclusively, to form fiber reinforcements for aeroengine fan casings made of composite material. Background technique [0002] The manufacture of a composite shell begins with the production of a ribbon-shaped fiber structure created by three-dimensional weaving between layers of warp and weft threads. The fiber structure thus obtained is wound several turns on a mold or tool having the shape of the shell to be produced and held between the mold and the section forming the counter-mold to obtain a fiber preform. [0003] Once the fiber preform has been produced, i.e. at the end of the winding of the fiber structure, the tool carrying the fiber preform is closed by a counter-mold and transported to an oven or oven where the preform is densified by the matrix, The matrix can be obtained in particular by infusing and polymerizing resi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D1/00D03D15/275D03D15/267D03D15/56D03D15/50D03D11/00D03D25/00
CPCD03D1/0052D03D11/00D03D25/005D10B2101/06D10B2101/12D10B2505/02D03D15/267D03D15/275B29B11/16Y02T50/60D06M23/14F01D25/24F05D2220/32F05D2300/614
Inventor S·勒洪D·M·C·库佩特M·加比隆H·格雷林J-N·马修S·穆西拉R·J·Y·莫笛尔F·雷蒙德
Owner SAFRAN AIRCRAFT ENGINES SAS