Method for producing a turbomachine blade made from a composite material
    2.
    发明授权
    Method for producing a turbomachine blade made from a composite material 有权
    由复合材料制成的涡轮机叶片的方法

    公开(公告)号:US08607454B2

    公开(公告)日:2013-12-17

    申请号:US13263176

    申请日:2010-03-26

    IPC分类号: B21K25/00 B23P15/04

    摘要: A method of fabricating a composite-material turbomachine blade having platform incorporated therein includes separately making a blade platform element that includes rigidified fiber reinforcement and that has a shape close to that of a platform of the blade to be fabricated, with at least one opening being formed through the platform element. The opening has the shape of the profile of the airfoil of the blade to be fabricated. Three-dimensional weaving is used to make a flexible fiber blank as a single piece that includes blade airfoil-and-root preform portions. The platform element is engaged, via its opening, on the flexible fiber blank while deforming it so as to assemble the platform element with the fiber blank. The fiber blank is shaped together with the platform element assembled thereon to obtain a blade preform of a shape that is close to the shape of the blade to be fabricated. After shaping, the blade preform is consolidated in its shape in a shaper. Additionally, final densification of the consolidated blade preform is performed in order to obtain a composite-material blade having an incorporated platform.

    摘要翻译: 制造具有并入其中的平台的复合材料涡轮机叶片的方法包括分别制造包括刚性纤维增强件并且具有接近待制造的叶片的平台的形状的叶片平台元件,其中至少一个开口 通过平台元件形成。 开口具有要制造的叶片的翼型的形状。 使用三维编织将柔性纤维坯料制成包括叶片翼型和根部预制件部分的单件。 平台元件通过其开口接合在柔性纤维坯料上,同时变形,以便将平台元件与纤维坯料组装。 纤维坯料与组装在其上的平台元件一起成形,以获得接近待制造的刀片形状的形状的刀片预制件。 在成形之后,刀片预成型件以整形器固结成其形状。 此外,为了获得具有并入的平台的复合材料刀片,进行固结刀片预成型件的最终致密化。

    PRODUCTION OF A FIBROUS STRUCTURE WITH VARIABLE THICKNESS BY 3D WEAVING
    6.
    发明申请
    PRODUCTION OF A FIBROUS STRUCTURE WITH VARIABLE THICKNESS BY 3D WEAVING 有权
    通过3D织物生产具有可变厚度的纤维结构

    公开(公告)号:US20110277869A1

    公开(公告)日:2011-11-17

    申请号:US13131305

    申请日:2009-11-20

    IPC分类号: D03D41/00 D03D11/00

    摘要: A method of making a fiber structure by multilayer three-dimensional weaving, the fiber structure having a thickness in a direction perpendicular to the warp and weft directions that varies along the warp direction while conserving the same number of warp yarns that are woven at all points of the fiber structure along the warp direction, wherein during a transition in the warp direction from a first portion of the fiber texture to a second portion of the fiber texture having a thickness that is greater than the thickness of the first portion, the number of warp planes is decreased and the number of layers of warp yarns is increased without changing the number of warp yarns, by constituting at least one warp plane in the second portion with warp yarns taken from at least two different warp planes in the first portion.

    摘要翻译: 一种通过多层三维织造制造纤维结构的方法,所述纤维结构具有沿着经向方向垂直的方向的厚度,同时保留在所有点编织的相同数量的经纱 的纤维结构沿着经线方向,其中在从纤维织构的第一部分到经纱方向的转变过程中,纤维织构的第二部分的厚度大于第一部分的厚度, 通过在第二部分中构成至少一个经纱,经纱从第一部分中的至少两个不同的翘曲面取得,经纱平面减少,经纱层数增加而不改变经纱的数量。

    Method of making a multi-perforated part out of ceramic matrix composite material
    9.
    发明授权
    Method of making a multi-perforated part out of ceramic matrix composite material 有权
    从陶瓷基复合材料制成多孔部件的方法

    公开(公告)号:US07238247B2

    公开(公告)日:2007-07-03

    申请号:US10786409

    申请日:2004-02-25

    IPC分类号: B32B37/00

    摘要: A fiber preform for constituting the fiber reinforcement of composite material is prepared and then consolidated by depositing sufficient matrix phase therein to bond the fibers together while not completely densifying the preform. Pins of rigid material are put into place through the consolidated preform and densification of the consolidated preform containing the pins is continued by depositing at least a ceramic matrix phase. Thereafter, at least a portion of each pin is eliminated so as to leave a calibrated perforation passing through the resulting part, the pins being made at least in part out of a material that can be eliminated by applying treatment that does not affect the ceramic material of the matrix.

    摘要翻译: 制备用于构成复合材料的纤维增强材料的纤维预制件,然后通过在其中沉积足够的基质相来固化,以将纤维粘合在一起,同时不完全致密化预成型体。 通过固结的预成型件将刚性材料的销插入到位,并且通过沉积至少一个陶瓷基体相继续进行包含销的固化的预成型体的致密化。 此后,消除每个销的至少一部分,以便留下通过所得部件的经校准的穿孔,所述销至少部分由通过施加不影响陶瓷材料的处理而被消除的材料制成 的矩阵。

    Production of a fibrous structure with variable thickness by 3D weaving
    10.
    发明授权
    Production of a fibrous structure with variable thickness by 3D weaving 有权
    通过3D编织生产具有不同厚度的纤维结构

    公开(公告)号:US08505588B2

    公开(公告)日:2013-08-13

    申请号:US13131305

    申请日:2009-11-20

    IPC分类号: D03D11/00 D03D41/00

    摘要: A method of making a fiber structure by multilayer three-dimensional weaving, the fiber structure having a thickness in a direction perpendicular to the warp and weft directions that varies along the warp direction while conserving the same number of warp yarns that are woven at all points of the fiber structure along the warp direction, wherein during a transition in the warp direction from a first portion of the fiber texture to a second portion of the fiber texture having a thickness that is greater than the thickness of the first portion, the number of warp planes is decreased and the number of layers of warp yarns is increased without changing the number of warp yarns, by constituting at least one warp plane in the second portion with warp yarns taken from at least two different warp planes in the first portion.

    摘要翻译: 一种通过多层三维织造制造纤维结构的方法,所述纤维结构具有沿着经向方向垂直的方向的厚度,同时保留在所有点编织的相同数量的经纱 的纤维结构沿着经线方向,其中在从纤维织构的第一部分到经纱方向的转变过程中,纤维织构的第二部分的厚度大于第一部分的厚度, 通过在第二部分中构成至少一个经纱,经纱从第一部分中的至少两个不同的翘曲面取得,经纱平面减少,经纱层数增加而不改变经纱的数量。