发明名称 |
FIBROUS PREFORM OF A TURBOMACHINE BLADE MADE OF COMPOSITE MATERIAL WITH IN-BUILT PLATFORM, AND METHOD OF PRODUCING SAME |
摘要 |
A method of making a fiber preform, and the preform, for fabricating a turbine engine blade out of composite material, the method including: making a single-piece fiber blank by three-dimensional weaving with layers of longitudinal yarns interlinked by yarns of layers of transverse yarns; and shaping the fiber blank to obtain a single-piece fiber preform including a portion forming an airfoil preform and at least one portion forming a platform preform. During weaving, yarns of a first group of longitudinal yarns are extracted from the fiber blank beside one of side faces of the blank to form a portion corresponding to a blade platform preform, and yarns of a second group of longitudinal yarns are inserted into the fiber blank with mutual crossing of the yarns of the first group and the yarns of the second group. |
申请公布号 |
EP2802701(B1) |
申请公布日期 |
2016.11.16 |
申请号 |
EP20130701834 |
申请日期 |
2013.01.07 |
申请人 |
SNECMA |
发明人 |
MARCHAL, YANN;COUPE, DOMINIQUE;MAHIEU, JEAN-NOËL;DAMBRINE, BRUNO, JACQUES, GÉRARD |
分类号 |
D03D25/00;B29C70/24;F01D5/28 |
主分类号 |
D03D25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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