Method for manufacturing an acoustic panel having a capsular skin, and acoustic panel incorporating such a skin

A method for manufacturing an acoustic panel, comprising:

• providing a cellular structure having a first frontal face and a second frontal face, between which there extend cells, said cells opening at least onto the first frontal face of the structure, fastening a capsular skin to the first frontal face of the cellular structure next to a plurality of cells of said cellular structure, said capsular skin comprising a continuous layer of material, in one piece, forming capsules that extend into the cellular structure, providing at least one channel in a vicinity of an apex of each capsule for passage of acoustic waves, wherein the continuous layer of material comprises mutually independent wire cloth elements in an upper part of each capsule and does not have polymerizable material at the apex of the capsules formed by one or more meshes of the wire cloth element, the capsular skin not having wire cloth away from the upper parts of the capsules, obtaining the capsular skin, after forming the capsules, by molding the layer of material which includes a polymerizable material away from the apex in a mold comprising a plate having a plurality of raised elements connected to and protruding from the plate, each of the raised elements having a shape of the capsules, the polymerizable material being deposited on the mold, and arranging the mold on the first frontal face of the cellular structure, inserting each raised element into a cell of the cellular structure before the polarizable material of the layer of material is polymerized, and polymerizing the material in situ.