Honeycomb core with improved acoustic properties and method for making same
AssigneeSafran Cabin Inc.
InventorsBhaskar Biswas, Matthew Taylor
Life of this patent
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Abstract
A method for providing a honeycomb core assembly that includes obtaining a honeycomb core having at least first and second cells that each define a cell interior having an open bottom and an open top, contacting the honeycomb core with a liquid foaming adhesive, contacting a hardening agent with the liquid foaming adhesive, and allowing the hardening agent and liquid foaming adhesive to react to harden and form a first barrier member that spans the cell interior of the first cell and a second barrier member that spans the cell interior of the second cell, thereby forming the honeycomb core assembly.
Claims17
A method for providing a honeycomb core assembly, the method comprising the steps of:
- (a) obtaining a honeycomb core that includes at least first and second cells that each define a cell interior having an open bottom and an open top,
- (b) contacting the honeycomb core with a liquid foaming adhesive,
- (c) contacting a hardening agent with the liquid foaming adhesive, and
- (d) allowing the hardening agent and liquid foaming adhesive to react to harden and form a first barrier member that spans the cell interior of the first cell and a second barrier member that spans the cell interior of the second cell, thereby forming the honeycomb core assembly.
A method for providing a honeycomb core assembly, the method comprising the steps of:
- (a) obtaining a honeycomb core that includes at least first and second cells that each define a cell interior having an open bottom and an open top,
- (b) inserting the honeycomb core into a bath of liquid foaming adhesive, wherein the bath of liquid foaming adhesive has a top surface that is located below a top surface of the honeycomb core, and wherein the liquid foaming adhesive includes a noise suppressing chemical therein,
- (c) disposing a mixture of a hardening agent into the cell interiors of the first and second cells and on the top surface of the bath of liquid foaming adhesive,
- (d) applying heat to the hardening agent and liquid foaming adhesive,
- (e) allowing the hardening agent and liquid foaming adhesive to react to harden and form a first barrier member that spans the cell interior of the first cell and a second barrier member that spans the cell interior of the second cell, thereby forming the honeycomb core assembly,
- (f) removing the honeycomb core assembly from the bath of liquid foaming adhesive,
- (g) inserting the honeycomb core assembly into a water bath to remove any foaming adhesive residue under the first and second barrier members, and
- (h) applying a vacuum through the open tops of the first and second cells to remove any excess catalyst and hardening agent within the cell interiors.
A honeycomb core assembly produced by a method comprising the steps of:
- (a) obtaining a honeycomb core that includes at least first and second cells that each define a cell interior having an open bottom and an open top,
- (b) contacting the honeycomb core with a liquid foaming adhesive,
- (c) contacting a hardening agent with the liquid foaming adhesive,
- (d) allowing the hardening agent and liquid foaming adhesive to react to harden and form a first barrier member that spans the cell interior of the first cell and a second barrier member that spans the cell interior of the second cell, thereby forming the honeycomb core assembly.
Dependencies are inferred from the claim text.