PALE D'HÉLICE COMPOSITE POUR AÉRONEF
    2.
    发明公开
    PALE D'HÉLICE COMPOSITE POUR AÉRONEF 有权
    VERBUNDPROPELLERBLATTFÜREIN FLUGZEUG

    公开(公告)号:EP3019398A1

    公开(公告)日:2016-05-18

    申请号:EP14742277.8

    申请日:2014-06-25

    申请人: Snecma

    IPC分类号: B64C11/26 B29D99/00

    摘要: The invention relates to an aircraft propeller blade including a structure having an airfoil, consisting of at least one fibrous reinforcement (200) obtained by three-dimensional weaving of threads and made denser by a matrix and a spar (60) including a bulged portion (62) extending outside of the fibrous reinforcement and forming the shank of the blade, and a shaped portion (61) in a recess (206) provided within the fibrous reinforcement (200). The fibrous reinforcement (200) comprises a disconnection area (204) forming the recess (206) inside the fibrous reinforcement (200). The disconnection area (204) leads to the lower portion (220) and the rear edge (230) of the fibrous reinforcement (200) such as to form an opening (231) for inserting the shaped portion (61) of the spar (60) into the recess (206) of the fibrous reinforcement. The opening (231) on the rear edge (230) of the fibrous reinforcement (200) extends over a height (H231) that is shorter than the height (H204) of the recess such as to provide, on said rear edge (230), a retaining portion (232) that is at least partially in contact with the shaped portion (61) of the spar (60).

    摘要翻译: 一种飞机螺旋桨叶片,包括由至少一片纤维增强材料构成的流线型结构,所述至少一片纤维增强材料通过三维织造纱线并由基体致密化,以及包括延伸到纤维增强件外部并形成叶片根部的扩大部分的翼梁 以及存在于布置在纤维增强件内部的壳体中的成形部。 纤维增强件包括在纤维增强件内部形成壳体的非互连区域。 非互连区域开放到纤维增强件的底部部分和后边缘中,以形成用于将翼梁的成形部分插入纤维增强件的壳体中的开口。 存在于纤维增强件的后边缘中的开口在比壳体的高度小的高度上延伸。

    PROCÉDÉ ET ENSEMBLE DE FABRICATION D'AUBE COMPOSITE
    3.
    发明公开
    PROCÉDÉ ET ENSEMBLE DE FABRICATION D'AUBE COMPOSITE 有权
    VERFAHREN UND ANORDNUNG ZUR HERSTELLUNG EINES VERBUNDSCHAUFEL

    公开(公告)号:EP3052304A1

    公开(公告)日:2016-08-10

    申请号:EP14789324.2

    申请日:2014-10-03

    申请人: SNECMA

    IPC分类号: B29C70/48 B29C43/36 B29L31/08

    摘要: The invention relates to a compacting assembly comprising a forming mould (24) defining an upwardly open housing that can receive a previously cut woven preform (10a), and a vertically mobile compacting tool (128), and forming, with the forming mould (24), an assembly for compacting said preform previously placed in the housing. The compacting tool (128) comprises at least one foot portion (128A). The compacting tool comprises at least three separate compacting blocks (128
    1 -128
    7 ). The invention is applicable to the production of composite fan blades for turbomachines.

    摘要翻译: 本发明涉及一种压实组件,其包括限定向上敞开的壳体的成形模具(24),其能够接收预先切割的编织预制件(10a)和可垂直移动的压实工具(128),并且与成形模具成形, (24),用于所述预制件的压实组件预先放置在壳体中。 压实工具(128)包括至少一个脚部(128A)。 压实工具(128)包括至少三个单独的压实块(1281-1287)。 适用于制造涡轮机的复合风机叶片。

    STRUCTURE FIBREUSE AVEC REGROUPEMENT DES FLOTTES
    8.
    发明公开
    STRUCTURE FIBREUSE AVEC REGROUPEMENT DES FLOTTES 有权
    FASERSTRUKTUR MIT GRUPPIERUNG VON FLOTTIERUNGEN

    公开(公告)号:EP3052685A1

    公开(公告)日:2016-08-10

    申请号:EP14796210.4

    申请日:2014-09-29

    申请人: SNECMA SAFRAN

    摘要: A fibrous structure (200) comprises a preform portion (210) formed as a single piece by three-dimensional weaving between a first plurality of layers of threads and a second plurality of layers of threads, the preform portion corresponding to all or part of a fibrous reinforcement preform for a component made of composite. The fibrous structure (200) comprises, outside of the preform portion (210), one or more layers of two-dimensional woven fabric (220a, 220b), each layer of two-dimensional woven fabric grouping together the threads (2010a) of one same layer (201a) belonging at least to the first plurality of layers of threads and situated outside of the preform portion (210).

    摘要翻译: 纤维结构包括通过在第一多个纱线层和第二多个纱线层之间进行三维编织而形成为单一部分的坯料部分,所述坯料部分对应于用于部件的纤维增强预成型件的全部或一部分 复合材料。 在空白部分之外,纤维结构包括一个或多个二维织物层,每个二维织物层将属于至少第一多个纱线层的单层纱线聚集在一起,并位于坯料部分的外部。