A method for manufacturing an acoustic body is comprising the following steps: (A) Inserting a plurality of layers into a moulding tool comprising a first moulding half (6) and a second moulding half (7). The second moulding half (7) comprises a plurality of cup-like indentations (8). The plurality of layers at least comprises a first porous skin layer (1) facing the first moulding half (6), a second impermeable skin layer (3,4) facing the second moulding half (7), and a film layer (2) between the two skin layers (1,3,4). (B) Closing the moulding tool and discharging gas from one side in order to press the first skin layer (1) against the first moulding half (6). (C) Shaping and consolidating the first porous skin layer (1). (D) Charging with pressurized air the first space in order to press the second skin layer (3,4) against the second moulding half (7). (E) Shaping and consolidating the second skin layer (3,4). (F) Meanwhile bonding the first and second skin layer (1,3,4) to each other in the area bewteen the cup-like indentations (8), in order to form an acoustic body comprising a plurality of cup-like cavities.


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    Title :

    METHOD OF MANUFACTURING OF A LIGHTWEIGHT STRUCTRURAL TRIM PART AND LIGHTWEIGHT STRUCTURAL TRIM PART PRODUCED


    Additional title:

    VERFAHREN ZUM HERSTELLEN EINES LEICHTEN VERKLEIDUNGSTEILS UND HERGESTELLTES LEICHTES VERKLEIDUNGSTEIL
    PROCÉDÉ DE FABRICATION D'UNE STRUCTURE D'ISOLATION PHONIQUE ET STRUCTURE AINSI PRODUITE


    Contributors:

    Publication date :

    2015-08-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS / B29L INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES , Index-Schema für besondere Gegenstände in Verbindung mit Unterklasse B29C / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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