公开(公告)号：US10406761B2

公开(公告)日：2019-09-10

申请号：US15009458

申请日：2016-01-28

Applicant: SNECMA

Inventor： Paul Antoine Foresto ,  Adrien Philippe Fabre

IPC: B29D99/00 ,  B29C70/02 ,  F04D29/68 ,  B29C70/48 ,  B29C70/68 ,  B29C70/86 ,  B29C33/52 ,  B29C70/24 ,  F04D29/32 ,  B29C45/00 ,  B64C11/26 ,  B29C33/04 ,  B29L31/08

Abstract: The invention relates to a method for manufacturing a blade made of composite material extending in a main elongation direction, the composite material of said blade comprising a fiber reinforcement densified by a matrix, the method comprising the following steps: a step of weaving warp yarns and weft yarns to produce a fiber preform, the fiber preform comprising at least one warp yarn adapted to form in the matrix at least one first portion of a channel, said portion of length of the warp yarn being directed according to the main elongation direction of the blade and opening at the root of the blade, the first channel portion formed in the matrix by said portion of length of warp yarn constituting at least one first portion of the internal airflow channel; a step of forming the fiber preform so as to produce a blade preform and densifying said blade preform; characterized in that the weaving step comprises placing at least one second portion of yarn adapted to form in the matrix a second portion of a channel, said second portion of yarn being transversally directed relative to said main elongation direction and opening at the trailing edge of the blade, the second channel portion formed in the matrix by said second portion of yarn constituting also at least one second portion of the internal airflow channel.

公开(公告)号：US20160221273A1

公开(公告)日：2016-08-04

申请号：US15009458

申请日：2016-01-28

Applicant: SNECMA

Inventor： Paul Antoine Foresto ,  Adrien Jacques Philippe Fabre

IPC: B29C70/02 ,  B29C45/00 ,  B64C11/26

CPC classification number: B29C70/021 ,  B29C33/046 ,  B29C33/52 ,  B29C45/0005 ,  B29C70/24 ,  B29C70/48 ,  B29C70/682 ,  B29C70/86 ,  B29D99/0025 ,  B29L2031/08 ,  B64C11/26 ,  F04D29/324 ,  F04D29/684 ,  F05D2240/122 ,  F05D2300/603 ,  F05D2300/6034

Abstract: The invention relates to a method for manufacturing a blade made of composite material extending in a main elongation direction, the composite material of said blade comprising a fiber reinforcement densified by a matrix, the method comprising the following steps: a step of weaving warp yarns and weft yarns to produce a fiber preform, the fiber preform comprising at least one warp yarn adapted to form in the matrix at least one first portion of a channel, said portion of length of the warp yarn being directed according to the main elongation direction of the blade and opening at the root of the blade, the first channel portion formed in the matrix by said portion of length of warp yarn constituting at least one first portion of the internal airflow channel; a step of forming the fiber preform so as to produce a blade preform and densifying said blade preform; characterized in that the weaving step comprises placing at least one second portion of yarn adapted to form in the matrix a second portion of a channel, said second portion of yarn being transversally directed relative to said main elongation direction and opening at the trailing edge of the blade, the second channel portion formed in the matrix by said second portion of yarn constituting also at least one second portion of the internal airflow channel.

Abstract translation: 本发明涉及一种用于制造由主延伸方向延伸的复合材料制成的刀片的方法，所述刀片的复合材料包括由基质致密化的纤维增强材料，该方法包括以下步骤：编织经纱和 纬纱以生产纤维预制件，所述纤维预制件包括至少一根经纱，其适于在基体中形成通道的至少一个第一部分，所述经纱的长度部分根据主延伸方向被引导 叶片和叶片的根部处开口，第一通道部分由构成至少一个内部气流通道的第一部分的经纱长度的所述部分形成在基质中; 形成所述纤维预制件以便制造刀片预成型件并致密化所述刀片预制件的步骤; 其特征在于，所述织造步骤包括将适于在所述基质中形成通道的第二部分的纱线的至少一个第二部分放置，所述第二部分纱线相对于所述主伸长方向横向定向并且在所述第二部分的后缘处开口 由所述第二部分纱线形成在基体中的第二通道部分也构成内部气流通道的至少一个第二部分。