PERFORATION OF A SEPTUM IN A PREFABICATED ACOUSTIC PANEL

摘要

In a method for manufacturing an acoustic panel (20), a core structure (25) is provided between and bonded to a top skin (22) and a septum (23). A plurality of perforations (32) are formed in the top skin (22) using an energy beam device (52). A plurality of perforations (34) are formed in the septum (23) through the top skin holes (32) using the energy beam device (56). A plurality of cavities (44) in the core structure (25) fluidly couple at least some of the perforations (32) in the top skin (22) with at least some of the perforations (34) in the septum (23).