METHOD FOR MAKING A THIN-WALLED ACOUSTIC COMPONENT

The invention relates to a method for making an acoustic component (120) comprising a plurality of hollow complex acoustic elements (121), the method comprising: - heating a film of thermoplastic material to a first temperature above the glass transition temperature of said film; - shaping the heate...

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Bibliographische Detailangaben
Hauptverfasser:	DUNLEAVY, Patrick, ALGLAVE, Hugues, Laurent, LANFANT, Pierre, Nicolas
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOUND-PRODUCING DEVICES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a method for making an acoustic component (120) comprising a plurality of hollow complex acoustic elements (121), the method comprising: - heating a film of thermoplastic material to a first temperature above the glass transition temperature of said film; - shaping the heated film of thermoplastic material in a tool comprising a mould (210) which has a plurality of mould cavities (211) having a shape corresponding to the shape of the complex acoustic elements (121) of the acoustic component (120) to be made, the heated film of thermoplastic material being shaped locally in each of the mould cavities, at least the mould being kept at a second temperature above the glass transition temperature of the thermoplastic material; - cooling the mould; - removing a complex acoustic multi-element panel (120) comprising a plurality of hollow complex acoustic elements (121) from the mould.