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US 12,136,407 B2Granted
Sandwich-structured panels and method of manufacture
AssigneePratt & Whitney Canada Corp.
InventorsNinad Joshi, Sid-Ali Meslioui
Life of this patent
Estimating the term…
Abstract
Sandwich-structured noise-attenuating and/or structural panels and methods of manufacturing such panels using ultrasonic welding are described. The method includes: receiving a backing member, a sheet and a cellular structure; assembling the cellular structure between the backing member and the sheet; and ultrasonically welding the backing member and the sheet together.
Claims11
A method of manufacturing a sandwich-structured panel, the method comprising:
- receiving an annular base having a radially-inner side defining a recess;
- receiving a first skin, a second skin and a cellular core;
- ultrasonically welding the first skin to the radially-inner side of the annular base so that a main portion of the first skin is received into the recess and a peripheral portion of the first skin outside of the main portion is welded to a peripheral portion of the annular base outside of the recess;
- after ultrasonically welding the first skin to the radially-inner side of the annular base, assembling the cellular core with the first and second skins so that:
- the cellular core is disposed between the first and second skins;
- the peripheral portion of the first skin is disposed outside a periphery of the cellular core;
- and
- the second skin has a peripheral portion disposed outside the periphery of the cellular core and facing the peripheral portion of the first skin, the peripheral portion of the second skin being adjacent the peripheral portion of the first skin;
- ultrasonically welding the peripheral portion of the first skin and the peripheral portion of the second skin together;
- and
- ultrasonically welding the second skin to the cellular core.
8 more elements
A method of manufacturing an aircraft component, the method comprising:
- receiving an annular base having a radially-inner side defining a recess;
- receiving a backing member, a sheet and a cellular structure;
- ultrasonically welding the backing member to the radially-inner side of the annular base so that a main portion of the backing member is received into the recess and a peripheral portion of the backing member outside of the main portion is welded to a peripheral portion of the annular base outside of the recess;
- after ultrasonically welding the backing member to the radially-inner side of the annular base, assembling the cellular structure between the backing member and the sheet;
- and
- ultrasonically welding the backing member and the sheet together.
3 more elements
Dependencies are inferred from the claim text.