B - Operations – Transporting – 29 – B
Patent
B - Operations, Transporting
29
B
B29B 11/16 (2006.01) B29C 33/50 (2006.01) B29C 70/24 (2006.01)
Patent
CA 2748006
The invention relates to a hollow form part obtained by 3D weaving and impregnation. The invention comprises making a preform (11) by three-dimensional weaving while carrying out a partial untying (19) during the weaving, which enables the subsequent formation of a cavity within the woven mass and the stabilisation of the form during the impregnation phase.
Pièce de forme creuse obtenue par tissage 3D et imprégnation. Selon l'invention on réalise une préforme (11) par tissage tridimentionnel en pratiquant un déliage partiel (19) au cours du tissage, ce qui permet de définir ultérieurement une cavité au sein de la masse tissée, puis de stabiliser la forme à la phase d'imprégnation.
Marsal David
Millier Xavier
Goudreau Gage Dubuc
Snecma
LandOfFree
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