Automotive OEM's are looking for innovative material solutions that will help them to reduce weight, thereby reduce carbon footprint. One such emerging area to meet this objective is glazing, where traditionally glass is used as the material. Polycarbonate which is an engineering thermoplastic has the potential to replace glass, providing 30 to 40% of weight saving. Two shot injection compression process is primarily adopted for manufacture of these large complex polycarbonate-glazing panels, in order to reduce residual stresses and clamp force. This involves combination of two processes, first the injection compression of clear panel and second overmolding of black out portion with integral features. Prediction of deformation of these molded large panels is a critical parameter for successful replacement of glass. A novel prediction methodology to address this critical parameter is discussed along with comparison of results with experimentation. This paper focuses on development of one such methodology to predict the deformation. It involves prediction of residual stresses of each shot using flow analysis and then exporting it to a structural solver by coupling them together with appropriate method. Different approaches of doing this are explained along with comparison of results with experimentation.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Analytical Methodology for Prediction of Warpage of Two Shot Injection Compression Molded Polycarbonate Glazing


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Garg, Ankit (Autor:in) / Narasimhan, Krishnamoorthy (Autor:in) / SM, Kumar (Autor:in)

    Kongress:

    SAE 2011 World Congress & Exhibition ; 2011



    Erscheinungsdatum :

    2011-04-12




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Analytical Methodology for Prediction of Warpage of Two Shot Injection Compression Molded Polycarbonate Glazing

    Narasimhan, K. / Garg, A. / Kumar, S.M. et al. | British Library Conference Proceedings | 2011


    Analytical methodology for prediction of warpage of two shot injection compression molded polycarbonate glazing

    Narasimhan,K. / Garg,A. / GE India Technol.Center,IN | Kraftfahrwesen | 2011


    Warpage Prediction on Injection Molded Semi-Crystalline Thermoplastics

    Yang, Anthony / Zeng, Danielle / Kang, Hong-Tae et al. | SAE Technical Papers | 2018


    Shrinkage and Warpage Analysis of Plastic Injection Molded Parts

    Beaumont, John P. | SAE Technical Papers | 1989


    Shrinkage and warpage analysis of plastic injection molded parts

    Beaumont,J.P. / Moldflow,US | Kraftfahrwesen | 1989