Prediction of springback has become a major focus in sheet metal forming. Validation of finite element codes that are being developed to predict springback require accurate property data and a more complete understanding of the residual stresses that are involved. To provide experimental data for these calculations, neutron and synchrotron X-ray diffraction measurements were carried out to determine the through-thickness distribution of axial and hoop (or tangential) residual stresses in deep-drawn steel and aluminum cups. The techniques are able to provide true spatial resolutions as low as 0.05 mm for a strain measurement on cups with ≤ 1 mm wall thickness. It was found that the stresses exhibit non-linear gradients through the thickness that also depend on the axial position.


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    Titel :

    An Investigation of Springback Stresses in Deep-Drawn Cups Using Diffraction Techniques


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Prask, H. J. (Autor:in) / Levine, L. E. (Autor:in) / Fields, R. J. (Autor:in) / Gnaeupel-Herold, T. (Autor:in) / Foecke, T. J. (Autor:in) / Lienert, Ulrich (Autor:in) / Xia, Z. Cedric (Autor:in)

    Kongress:

    SAE 2005 World Congress & Exhibition ; 2005



    Erscheinungsdatum :

    2005-04-11




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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