Sheet metal forming limit diagram (FLD) is a comprehensive index used to evaluate sheet metal formability. In this paper, the forming limit curves of GH605 sheet materials with 0.2 mm and 2.5 mm thickness under three different heat treatment conditions were obtained by numerical simulation of bulging. Then, the simulated forming limit results of the three materials with 0.2 mm thickness were compared with the experimental results. The results show that the simulated FLDs can be in good agreement with the experimental FLDs. The influences of work hardening index (n value) and anisotropy index (r value) on the forming limit are analysed from the view of material property difference. The comprehensive simulated and experimental results show that the formability of the sheets after the two kinds of solution treatment is significantly better than that of the annealed sheets. The forming limit curve increases with the increase of n value and r value, and the influence of n value on the forming limit curve is more significant than that of r value. The forming limit diagram established by numerical simulation can provide a theoretical basis for material development and process selection.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Analysis of influencing factors on forming limit of GH605 sheet metal


    Beteiligte:
    WANG Yanju (Autor:in) / LUAN Wei (Autor:in) / MENG Bao (Autor:in) / SHA Aixue (Autor:in) / JIA Chonglin (Autor:in)


    Erscheinungsdatum :

    2021




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Forming limit at sheet metal forming

    Tmej, J. / Mikes, V. / Buchar, Z. | Tema Archiv | 1989


    Forming limit diagrams for CNC RPIF of sheet metal

    Jeswiet, J. / Young, D. / Szekeres, A. | Tema Archiv | 2003


    A Path Independent Forming Limit Criterion for Sheet Metal Forming Simulations

    Zeng, Danielle / Chappuis, Laurent / Zhu, Xinhai et al. | SAE Technical Papers | 2008


    Predictive evaluation of sheet metal forming limit using 3-D FEM

    Katayama,T. / Yoshida,T. / Ohwue,T. et al. | Kraftfahrwesen | 1993


    Predictive Evaluation of Sheet Metal Forming Limit Using 3-D FEM

    Usuda, Matsuo / Ohwue, Tetsuroh / Yoshida, Tohru et al. | SAE Technical Papers | 1993