Abstract
Magnesium alloy shows good ductility and formability in a suitable temperature range, but the spinning of revolution surface workpiece with curved generatrix of magnesium alloy is a complicated problem; multi-pass spinning is low efficiency and needs multiple sets of die, and shear spinning is unsuitable for the formation of curved generatrix revolution surface since the strong thinning may lead to material damage. In this paper, one-pass hot spinning process for magnesium alloy AZ31 sheet is designed and investigated; the effect of the process parameters on the quality of the formed workpiece are analyzed; the minimal wall thickness and the maximal ovality of spun workpiece are taken as evaluating indexes; the process parameters are optimized by orthogonal experimental design based on the finite element simulation on the spinning process. The optimizing results of process parameters have been obtained: diameter-to-thickness ratio of sheet blank is 18, spinning temperature is 300 °C, feed rate is 1.0 mm/r, and swivel angle is 35°. Finally, the validity of the orthogonal experimental design results is demonstrated by one-pass hot spinning experiments.
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Li, LL., Cai, ZY., Xu, HQ. et al. Research on AZ31 sheet one-pass hot spinning based on orthogonal experiment design. Int J Adv Manuf Technol 75, 897–907 (2014). https://doi.org/10.1007/s00170-014-6186-8
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DOI: https://doi.org/10.1007/s00170-014-6186-8