Method for manufacturing an acoustic panel by welding
AssigneeSafran
InventorsNicolas Pierre Lanfant, Hugues Laurent Alglave, Patrick Dunleavy
Life of this patent
Estimating the term…
Abstract
A method for manufacturing an acoustic panel by welding of at least two acoustic components made of thermoplastic material, a thermal gradient being applied on the acoustic components during the welding operation so as to apply a temperature higher than the glass transition or melting temperature of the material on the area to be welded and so as to apply a temperature lower than or equal to the geometric stabilization temperature of the material on the parts furthest from the area to be welded.
Claims10
A method for manufacturing an acoustic panel comprising manufacturing at least a first acoustic component and a second acoustic component made of thermoplastic material each comprising a plurality of hollow acoustic elements, the first component comprising a first joining edge and the second component comprising a second joining edge, the first component and the second component being welded to each other by the first and second joining edges to form at least part of the acoustic panel,
- wherein, during the welding operation, a tooling covers part of the first and second components comprising the first and second joining edges so as to match a geometry of the covered hollow acoustic elements,
- and wherein a thermal gradient is applied on the parts of the first component and of the second component covered by the tooling so as to apply a temperature higher than a glass transition or melting temperature of the thermoplastic material on the first and second joining edges and so as to apply a temperature lower than or equal to a geometric stabilization temperature of the thermoplastic material on the hollow acoustic elements covered by the tooling that are furthest from the first and second joining edges.
Dependencies are inferred from the claim text.