Bendability is a critical characteristic of sheet metal during the stamping process in automobile industry. Bending operation plays an important role in the panels forming of vehicles. In this study, the recently developed “Incremental Bending” method was utilized to evaluate the ambient bendability of 7xxx series avoiding bending crack. A 3D digital image correlation (DIC) measurement system is improved to capture the displacement and strain information on the stretched side of the sheet samples. The background, experimental method and data post-procedure are introduced in detail. After several sequential images acquisition and data processing, the major strain histories on the stretch zone of the samples are measured. With different bending process and parameters, the location of peak strain and the surface major strain distribution were evaluated as a function of R/T ratio (the inner radius over sheet thickness). The experimental results showed how the bending parameters, such as the tooling radius, bending process, and angle influenced 7xxx AA sheet. The potential applications of the relationship between the peak strain and R/T ratio are proposed.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Bendability Study of 7xxx Aluminum Alloy Based on the DIC Technique


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Li, Junrui (Autor:in) / Yang, Lianxiang (Autor:in) / Xu, Wan (Autor:in) / Ma, Wen (Autor:in)

    Kongress:

    WCX SAE World Congress Experience ; 2019



    Erscheinungsdatum :

    2019-04-02




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    7XXX IMPROVED 7XXX ALUMINUM ALLOYS AND METHODS FOR PRODUCING THE SAME

    KAMAT RAJEEV G / CHAKRABARTI DHRUBA J / MOHANTY RASHMI RANJAN et al. | Europäisches Patentamt | 2020

    Freier Zugriff


    A New Approach to Heat Damage Evaluation for 7xxx Aluminum Alloy

    Wu, X. J. / Koul, A. K. / Zhao, L. | British Library Online Contents | 1996


    Precipitation Phenomena Affected by Dispersoid in 7XXX Aluminum Alloys

    Kanno, M. / Araki, I. / Cui, Q. et al. | British Library Conference Proceedings | 1993