Method for manufacturing turbine engine blade root of composite material and blade root obtained by such method

The invention relates to a method for manufacturing a turbine engine blade root made of a composite material including a fibrous reinforcement compregnated by a mould, the method including forming one central fibrous strip (102) and two outer fibrous strips from three sets of layers of threads (C10...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ILLAND HUBERT
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING ENGINE PLANTS IN GENERAL HEATING LIGHTING LOOMS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METHODS OF WEAVING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STEAM ENGINES TEXTILES TRANSPORTING WEAPONS WEAVING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WOVEN FABRICS
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Beschreibung
Zusammenfassung:	The invention relates to a method for manufacturing a turbine engine blade root made of a composite material including a fibrous reinforcement compregnated by a mould, the method including forming one central fibrous strip (102) and two outer fibrous strips from three sets of layers of threads (C10 to C19) connected to one another by three-dimensional weaving, the central strip passing through the two outer strips with the two outer strips crossing inside the central strip; removing portions of the outer strips which are external to the central strip by cutting; shaping the fibrous blank to obtain a preform having a main portion forming an integral blade root preform with two secondary portions (104a, 106a) forming bearing-surface preforms; and compregnating the preform. The invention also relates to a blade root obtained by such a method.