In-mold dielectric cure monitoring techniques pioneered by the aerospace industry were applied to the manufacturing process of LITEFLEX R springs. Real-time data was collected in-situ and used to interpret the progression of cure in an epoxy/fiberglass composite. This information was used to trigger mold pressurization in an attempt to lower void content and improve part appearance.A microdielectric sensor placed on the mold surface collected temperature and conductivity data that was converted to a cure percentage scale (cure index). The optimum pressurization point for the epoxy system was at approximately 40% conversion. Although results varied somewhat depending on spring geometry, void contents were reduced to less than 1%. Composite shear strength increased 10-15%. Surface appearance was also significantly improved.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Automotive/Aerospace Synergism in Computer-Aided Composite Processing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Aerospace Atlantic Conference & Exposition ; 1991



    Erscheinungsdatum :

    01.04.1991




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Automotive Computer Aided Production Engineering

    Williams, T. | British Library Conference Proceedings | 1994


    Computer Aided Training Simulation for Aerospace Engines

    Rangaswamy, T. R. / Thyagarajan, T. / Sanavullah, M. Y. et al. | British Library Conference Proceedings | 1995