Title:
PI-SECTION REINFORCING PIECE MADE OF COMPOSITE MATERIAL, NOTABLY TURBOMACHINE FAN PLATFORM, AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/104853
Kind Code:
A3
Abstract:
The invention relates to a method of manufacturing a π-section reinforcing piece (10) made of composite material, the method involving using three-dimensional weaving to create a first set of layers of threads which layers are joined together to form a first fibrous rough form part (102) intended to form a base preform, using three-dimensional weaving to create a second set of layers of threads which layers are joined together to form a second fibrous rough form part (104) intended to form a stiffener preform, threads of the second set being connected by weaving to the threads of the first set along a central disconnection strip (106) that widens towards the lateral edges (102a) of the first fibrous rough form part in a region (108, 110) corresponding to the step of the base, shaping the two fibrous rough form parts to obtain a fibrous preform (100) in a single piece that has a part forming the base preform and a part forming a stiffener preform, and applying a resin to the fibrous preform using a die. The invention also relates to a π-section reinforcing piece obtained using the method.
Inventors:
MARCHAL YANN (US)
MAHIEU JEAN-NOEL (FR)
MAHIEU JEAN-NOEL (FR)
Application Number:
PCT/FR2013/050027
Publication Date:
February 20, 2014
Filing Date:
January 07, 2013
Export Citation:
Assignee:
SNECMA (FR)
International Classes:
D03D25/00; B29C70/24
Foreign References:
| US6874543B2 | 2005-04-05 | |||
| US20100167007A1 | 2010-07-01 |
Attorney, Agent or Firm:
BOURA, Olivier et al. (158 Rue de l'Université, Paris Cedex 07, FR)
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