Fiber preform for a turbine engine blade made of composite material and having an integrated platform, and a method of making it

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United States of America Patent

PATENT NO 9771810
SERIAL NO

14371220

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Abstract

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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.

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Patent Owner(s)

  • SNECMA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coupe, Dominique Le Haillan, FR 54 1002
Dambrine, Bruno Jacques Gerard Le Chatelet en Brie, FR 28 307
Mahieu, Jean-Noel Paris, FR 14 241
Marchal, Yann Melun, FR 18 83

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