公开(公告)号：US11840029B2

公开(公告)日：2023-12-12

申请号：US17145903

申请日：2021-01-11

Applicant: Safran Nacelles

Inventor： Clément Rolland ,  Jean Baptiste Delarue ,  Jean Jacques Thomas ,  Vianney Hus ,  Mathieu Preau ,  Alain Roussel

IPC: B29C70/48 ,  B29C70/54 ,  B32B3/12 ,  B29C70/34 ,  B29K309/08 ,  B29L31/60

CPC classification number: B29C70/546 ,  B29C70/34 ,  B29C70/48 ,  B32B3/12 ,  B29K2309/08 ,  B29L2031/608 ,  B32B2262/101

Abstract: The present disclosure concerns a method for manufacturing a composite panel including a cellular central core interposed between two skins. The manufacturing method includes the steps of manufacture of an element with a cellular structure comprising a cellular core structure interposed between two layers of structural plies intended to form the skins, positioning of the element with a cellular structure within a mold, formation of drains on either side of the cellular core structure, infusion of the element with a cellular structure so as to impregnate it with a resin, carrying out a draining of the resin through the drains in the element with a cellular structure during the infusion step, the drains having a geometry configured to provide draining, and polymerization of the impregnated element with a cellular structure to form the composite panel.