Abstract
The heat treatable AlMgSi-alloys of the 6xxx-series are widely used for automotive sheet applications due to their good combination of strength and formability. Magnesium and silicon are the main alloying elements in this group forming the agehardening phase Mg2Si. Moreover intentional addition of copper, manganese and also impurities (for example iron) can have a significant influence on the mechanical properties and on the forming behavior of automotive body sheets. Beside the chemical composition also thermo-mechanical process parameters can lead to changes in material properties. The purpose of this work is to investigate the influence of alloying elements and process parameters on (I) strength and (II) ductility in temper T4 and after the typical paint bake cycle at 185°C/20min. Furthermore (III) the formability of different AlMgSi-alloys is studied with bending tests, cross-die tests, hole expansion tests and FLC-analysis.
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Prillhofer, R., Berneder, J., Rank, G., Antrekowitsch, H., Pogatscher, S., Uggowitzer, P.J. (2014). Influence of Chemical Composition and Process Parameters on Mechanical Properties and Formability of AlMgSi-Sheets for Automotive Application. In: Grandfield, J. (eds) Light Metals 2014. Springer, Cham. https://doi.org/10.1007/978-3-319-48144-9_39
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DOI: https://doi.org/10.1007/978-3-319-48144-9_39
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48590-4
Online ISBN: 978-3-319-48144-9
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