A method for manufacturing a high precision hollow metallic component, by obtaining, through extruding or roll forming, a precursor hollow metallic profile having a constant cross section and at least one precursor chamber; positioning the precursor hollow metallic profile in a split-die cavity, wherein at least two walls of said split die cavity have essentially outside dimensions of corresponding walls of the high-precision hollow metallic component; introducing a mandrel made of at least two parts into the precursor chamber; plastically deforming the precursor hollow metallic profile by expanding the mandrel to obtain finished dimensions of the high-precision hollow metallic component; removing the mandrel from the finished chamber after reversing an expanding action. A variable cross section hollow metallic component, with at least two chambers obtained with the method, is also described.


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    Titel :

    PRECISION FORMING OF METALLIC HOLLOW EXTRUSIONS


    Weitere Titelangaben:

    PRÄZISIONSFORMEN VON METALLISCHEN HOHLEN STRANGGÜSSEN
    FORMAGE DE PRÉCISION D'EXTRUSIONS MÉTALLIQUES CREUSES


    Beteiligte:
    KERR SEAN (Autor:in) / GRAF ALEJANDRO F (Autor:in)

    Erscheinungsdatum :

    2018-04-11


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING , Herstellen von Blechen, Metalldraht, -stangen, -rohren Metallprofilen oder Halbzeugen auf andere Weise als durch Walzen / B62D MOTOR VEHICLES , Motorfahrzeuge



    PRECISION FORMING OF METALLIC HOLLOW EXTRUSIONS

    KERR SEAN / GRAF ALEJANDRO F | Europäisches Patentamt | 2016

    Freier Zugriff

    HOT PRECISION FORGINGS AND EXTRUSIONS

    MURPHY, JOHN F. | SAE Technical Papers | 1958


    Hollow Extrusions Refine Pendolino Body Structures

    British Library Online Contents | 1993


    Aircraft aluminium extrusions

    Emerald Group Publishing | 2000


    Aluminum Alloy, Extrusions

    SAE Technical Papers | 1966