Method of producing a fibrous layer for the manufacture of a preform of a composite part
    1.
    发明授权
    Method of producing a fibrous layer for the manufacture of a preform of a composite part 有权
    制造复合部件的预成型体的纤维层的制造方法

    公开(公告)号:US08034273B2

    公开(公告)日:2011-10-11

    申请号:US12298249

    申请日:2007-04-25

    Abstract: The invention provides a method of making a fiber ply for forming a preform of a composite part in the form of a body of revolution having a non-developable surface, the method being characterized in that it comprises the steps consisting in: defining an annular space (23) with first and second canvases (20, 21) respectively defining an inner periphery and an outer periphery thereof; placing fibers between the canvases (20, 21) by placing the fibers in the annular space in at least one direction and by holding said fibers on the canvases by stitching; implementing circular connection stitching in the vicinity of the inner periphery of the annular space (23); and cutting out the fiber ply as made in this way in the annular space (23) in order to extract it from the canvases.

    Abstract translation: 本发明提供一种制造纤维帘布层的方法,用于形成具有不可展开表面的具有旋转体形式的复合部件的预成型件,该方法的特征在于包括以下步骤:限定环形空间 (23)具有分别限定其内周和外周的第一和第二帆布(20,21); 通过将纤维沿至少一个方向放置在环形空间中并通过缝合将所述纤维保持在帆布上,将纤维放置在帆布(20,21)之间; 在环形空间(23)的内周附近实施圆形连接缝合; 并且在环形空间(23)中切割出如此制造的纤维层,以便将其从帆布中提取出来。

    Method of making a unit comprising a casing and diverging portion
    2.
    发明授权
    Method of making a unit comprising a casing and diverging portion 有权
    制造包括壳体和发散部分的单元的方法

    公开(公告)号:US08062452B2

    公开(公告)日:2011-11-22

    申请号:US12002339

    申请日:2007-12-14

    Abstract: The invention relates to a method of making a casing-and-diverging-portion unit, the method comprising the following steps: forming fiber reinforcement from a first fiber preform made with a first type of fiber and a second fiber preform made with a second type of fiber different from the first type of fiber, said second preform being placed on the first preform; maintaining the fiber reinforcement in tooling so that it has a shape identical to the shape of the casing-and-diverging-portion unit that is to be made; and impregnating said fiber reinforcement with a thermosetting resin and impregnating the resin.

    Abstract translation: 本发明涉及一种制造壳体 - 发散部分单元的方法,所述方法包括以下步骤:由第一类纤维制成的第一纤维预制件和由第二类型制成的第二纤维预制件制成纤维增强件 的纤维不同于第一类型的纤维,所述第二预制件被放置在第一预制件上; 在加工中保持纤维增强,使其具有与要制造的壳体 - 发散部分单元的形状相同的形状; 并用热固性树脂浸渍所述纤维增强物并浸渍树脂。

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