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    • 1. 发明申请
    • FIBROUS PREFORM OF A TURBOMACHINE BLADE MADE OF COMPOSITE MATERIAL WITH IN-BUILT PLATFORM, AND METHOD OF PRODUCING SAME
    • 具有内置平台的复合材料的涡轮叶片的薄膜预制件及其制造方法
    • WO2013104852A3
    • 2014-02-20
    • PCT/FR2013050026
    • 2013-01-07
    • SNECMA
    • MARCHAL YANNCOUPE DOMINIQUEMAHIEU JEAN-NOELDAMBRINE BRUNO JACQUES GERARD
    • D03D25/00B29C70/24F01D5/28
    • F01D5/282B29B11/16B29C70/24B29D99/0025B29L2031/082D03D1/00D03D3/00D03D25/005D03D2700/01F05D2300/603F05D2300/6034
    • The invention relates to a method for producing a fibrous preform for the manufacture of a turbomachine blade made of composite material, the method involving using three-dimensional weaving to create a fibrous rough form (100) in a single piece with layers of longitudinal threads (c1 to c24) joined together by threads of layers of transverse threads (t1 to t24), and shaping the fibrous rough form to obtain a fibrous preform in a single piece having a part that forms the aerofoil preform and at least a part that forms a platform preform. During the course of the weaving process, the threads (c5 to c7) of a first group of longitudinal threads are led out from the fibrous rough form on the side of one of the lateral faces (110a) of the rough form to form a part (120) that corresponds to a preform of a blade platform, and threads (c3 and c4) of a second group of longitudinal threads are injected into the fibrous rough form with mutual criss-crossing between the threads of the first group and the threads of the second group. The invention also relates to a preform obtained using this method.
    • 本发明涉及一种用于制造由复合材料制成的涡轮机叶片的纤维预制件的方法,所述方法包括使用三维织造来形成具有纵向丝线层的单件的纤维粗糙形式(100) c1至c24)通过横向线(t1至t24)层的螺纹连接在一起,并且将纤维粗糙形状成形,以获得具有形成机翼预制件的一部分的单件的纤维预制件,并且至少形成一个 平台预制件。 在织造过程中,第一组纵向丝线的螺纹(c5至c7)从粗糙形式的一个侧面(110a)侧面的纤维粗糙形式引出,形成部分 (120),并且第二组纵向螺纹的螺纹(c3和c4)注入到纤维粗糙形式中,在第一组的螺纹和螺纹之间相互交叉 第二组。 本发明还涉及使用该方法获得的预制件。
    • 3. 发明申请
    • WEAVING LOOM HAVING OPTIMIZED WARP WEAVING
    • 具有优化的WARP WEAVING的舒适感
    • WO2013088037A3
    • 2014-02-20
    • PCT/FR2012052849
    • 2012-12-10
    • SNECMAALBANY ENGINEERED COMPOSITES
    • DAMBRINE BRUNO JACQUES GERARDCOUPE DOMINIQUEOUELLETTE KENGOERING JONATHAN
    • D03C3/38D03D41/00
    • D03C3/38D03D41/00D03D41/004
    • The invention relates to a Jacquard weaving loom (100) for creating a fabric by weaving between a plurality of warp threads (201) and a plurality of woof threads (202). The fabric includes a predetermined number warp threads per length unit and a predetermined number of warp thread layers. The loom includes a comber board (111) including a plurality of holes (1110) for passing a corresponding number of guide threads (113) therethrough, each guide thread being provided with an eyelet (114) having a warp thread (201) passing therethrough. The holes (1110) in the comber board (111) are distributed along a predetermined number of columns (1111) extending parallel to the direction of the warp threads (201) and a predetermined number of rows (1112) per column extending in a direction perpendicular to the direction of the warp threads. The comber board (111) includes a number of columns (1111) of holes (1110) per length unit that is less than the number of warp columns per the same length unit in the fabric and a number of rows (1112) of holes (1110) greater than the number of warp layers in the fabric.
    • 本发明涉及一种提花织机(100),用于通过在多根经线(201)和多根纬纱(202)之间进行编织来制造织物。 织物包括每长度单位预定数量的经线和预定数量的经线层。 织机包括梳理板(111),其包括用于使相应数量的导丝(113)穿过其中的多个孔(1110),每个导螺纹设置有具有穿过其中的经线(201)的孔眼(114) 。 精梳板(111)中的孔(1110)沿着平行于经线(201)的方向延伸的预定数量的列(1111)分布,并且每列在一定方向上延伸的预定数量的行(1112) 垂直于经线的方向。 精梳板(111)包括每长度单位多个孔(1110)的列(1111),其小于织物中相同长度单位的经纱数量,并且具有多个排(1112)孔 1110)大于织物中经纱层的数量。
    • 5. 发明申请
    • FIBER STRUCTURE INTENDED TO REINFORCE COMPOSITE MATERIAL PARTS AND INCLUDING A PORTION HAVING A REDUCED THICKNESS
    • 用于增强复合材料部件的光纤结构,包括具有减小厚度的部件
    • WO2013088038A3
    • 2014-01-16
    • PCT/FR2012052851
    • 2012-12-10
    • SNECMA
    • DAMBRINE BRUNO JACQUES GERARDCOUPE DOMINIQUEGOERING JONATHANMAHIEU JEAN-NOEL
    • D03D25/00B29C70/24F01D5/28
    • F01D5/147B29C70/24D03D25/005F01D5/286F01D5/288F01D5/3092F05D2230/50Y02T50/672
    • The invention relates to a fiber structure (200) for reinforcing a composite material part woven into a single part by means of multilayer weaving between a first plurality of thread layers (C1-C10) and a second plurality of thread layers (T1-T10). The fiber structure includes a portion (204) having a decreasing thickness and has a plurality of surface continuity thread setback portions (210, 211, 212) on said portion, wherein each portion has threads (Fc3; Fc8; Fc4), from a thread layer (C3; C8; C4) of the first thread layer plurality underlying the thread layer of the first thread layer plurality located on the surface of the structure, that are interrupted, and several surface discontinuity thread setback portions (220, 221), wherein each portion has threads (Fc1; Fc10), from the thread layer (C1; C10) of the first thread layer plurality located on the surface of the structure, that are interrupted. Each interrupted thread (Fc1; Fc10) is replaced, on the surface of the structure, by a thread (Fc2; Fc9) from a thread layer (C2; C9) underlying the first thread layer plurality. The threads from the layers from the second thread layer plurality (T1- T10), located on the surface of the fiber structure, are continuous over at least the entire portion (204) having a decreasing thickness.
    • 本发明涉及一种纤维结构(200),用于通过在第一多个螺纹层(C1-C10)和第二多个螺纹层(T1-T10)之间的多层织造来加强编织成单个部件的复合材料部件, 。 纤维结构包括具有减小的厚度的部分(204),并且在所述部分上具有多个表面延续性线退避部分(210,211,212),其中每个部分具有来自螺纹的螺纹(Fc3; Fc8; Fc4) 多层位于结构表面上的多个位于第一线层的线层上的第一线层的层(C3; C8; C4)被中断,以及几个表面不连续的线退避部分(220,221),其中 每个部分具有来自位于结构表面上的多个第一螺纹层的螺纹层(C1; C10)的螺纹(Fc1; Fc10),其被中断。 每个中断的线程(Fc1; Fc10)在结构的表面上由来自第一线程层下面的线程层(C2; C9)的线(Fc2; Fc9)代替。 位于纤维结构表面上的来自第二螺纹层多层(T1-T10)的层的螺纹至少在厚度减小的整个部分(204)上是连续的。