公开(公告)号：US12110126B2

公开(公告)日：2024-10-08

申请号：US17598534

申请日：2020-03-27

申请人： LEONARDO S.p.A.

发明人： Marco Vercellesi

IPC分类号： B29D99/00 ,  B32B3/12 ,  B32B3/26 ,  B32B7/12 ,  B32B27/08 ,  B32B37/12 ,  B32B38/00 ,  B32B38/04 ,  B64D33/02

CPC分类号： B64D33/02 ,  B29D99/0021 ,  B32B3/12 ,  B32B3/266 ,  B32B7/12 ,  B32B27/08 ,  B32B37/12 ,  B32B38/04 ,  B32B2038/0076 ,  B32B2038/042 ,  B32B2250/03 ,  B32B2250/24 ,  B32B2250/40 ,  B32B2305/024 ,  B32B2305/77 ,  B32B2307/102 ,  B32B2307/732 ,  B32B2605/18 ,  B64D2033/0206

摘要： A method for manufacturing a sound-absorbing panel with a sandwich structure for reducing noise impact of an aeronautic engine includes providing a first skin of a thermoplastic polymeric material, making a plurality of micro-holes through the first skin by mechanical punching of the first skin, securing the first skin to a central layer by arranging a structural adhesive layer between the first skin and the central layer and/or by a thermal weld between the first skin and the central layer, and securing the central layer to a second skin by arranging a structural adhesive layer between the central layer and the second skin and/or by a thermal weld between the central layer and the second skin.