Noise attenuating devices and methods, precursors and abrasive blasting masks for manufacturing noise attenuating devices are disclosed. An exemplary method disclosed herein includes bonding a facing sheet of the noise attenuating device to a cellular core and then perforating the facing sheet. Perforating the facing sheet may be performed by abrasive blasting using a mask configured to prevent the abrasive blasting of an underlying structure.
METHOD FOR MANUFACTURING NOISE ATTENUATING DEVICES
VERFAHREN ZUR HERSTELLUNG VON GERÄUSCHDÄMPFUNGSVORRICHTUNGEN
PROCÉDÉ DE FABRICATION DE DISPOSITIFS ATTÉNUATEURS DE BRUIT
2020-08-12
Patent
Electronic Resource
English
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B24C ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL , Abschleifendes oder ähnliches Abstrahlen mit teilchenförmigem Werkstoff / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / G03F Fotomechanische Herstellung strukturierter oder gemusterter Oberflächen, z.B. zum Drucken, zum Herstellen von Halbleiterbauelementen , PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |
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