Thermo-mechanical forming of Al-Mg-Si Sheet


Boogaard, A.H. van den and Kurukuri, Srihari and Ghosh, Manojit and Miroux, Alexis G. (2009) Thermo-mechanical forming of Al-Mg-Si Sheet. Computer methods in materials science, 9 (1). 5 - 11. ISSN 1641-8581

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Abstract:In warm forming of aluminum sheet, the temperature and strain rates vary considerably. In simulations, the material
model must be capable to predict stresses within this wide range. Here, the physically based Nes model is used to describe
the behavior of AA6061-T4 sheet material under warm forming conditions. A significant change of earing behavior is
found between room temperature and 250 ºC. Crystal plasticity calculations showed a reasonable correspondence of
changing r-values if extra slip systems are considered at high temperatures. Satisfactory results are obtained for simulation
of tensile tests and cylindrical deep drawing.
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Copyright:(c) UT Universiteit Twente, 2009
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