Method for manufacturing a part from composite material in powder form and with a thermoplastic organic matrix

Abstract

The invention relates to a method for impregnating a fibrous preform (110) comprising a three-dimensional weave, the method being characterized in that it comprises the following steps: - the placement of a fibrous preform comprising a three-dimensional weave in the mold cavity of a mold (100); - the placement of a powder (121, 122) of thermoplastic material having a particle size between 1.0 µm and 2000 µm in the mold cavity of the mold; - a step of compressing the elements present in the mold cavity of the mold, to allow the impregnation of the thermoplastic powder into the fibrous preform; and - a step of heating to a temperature greater than or equal to the glass transition temperature of the thermoplastic material. Figure for the abstract: Fig. 1.

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