公开(公告)号：US20210129462A1

公开(公告)日：2021-05-06

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: B29C70/54 ,  B32B3/12 ,  B29C70/48

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.