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.
METHODS, PRECURSORS AND ABRASIVE BLASTING MASKS FOR MANUFACTURING NOISE ATTENUATING DEVICES
2018-09-13
Patent
Electronic Resource
English
IPC: | 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 / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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