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US 2004/0163888 A1Published application
Honeycomb core acoustic unit with metallurgically secured deformable septum, and method of manufacture
OwnerJeffrey Don Johnsoninventor
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Abstract
A honeycomb acoustic unit is provided, the unit comprising first and second honeycomb layers, the layers being made of honeycomb core, each being formed by metallurgical bonds, and a deformable septum having two opposing sides, the first and second honeycomb layers being metallurgically bonded to the two opposing sides of the deformable septum.
Claims16
A honeycomb acoustic core unit, said unit comprising
- a first layer of metal honeycomb core,
- a deformable metal septum, and
- a second layer of metal honeycomb core, said first and second layers of honeycomb core each being formed from a metallic foil sheet assemblage with a plurality of weldments distributed between the foil sheets, said deformable metal septum being metallurgically bonded to each of said first and second honeycomb core layers, said acoustic core unit being useful for sound attenuation.
A method of making a honeycomb acoustic unit comprising
- providing a first honeycomb layer and a second honeycomb layer, each of said first and second honeycomb layers being formed from a metallic foil sheet assemblage with a plurality of weldments distributed between the foil sheets,
- providing a deformable metal septum having two opposed sides;
- metallurgically bonding said first honeycomb layer to one side of said septum;
- and
- metallurgically bonding said second honeycomb layer to the opposite side of said septum,
- said resulting unit being useful for sound attenuation.
3 more elements
Dependencies are inferred from the claim text.