Formability analysis of magnesium alloy sheets at elevated temperatures with experimental and numerical method

摘要

This paper describes a study in which thermomechanical properties of wrought magnesium were thoroughly investigated. The formability of the magnesium based alloy sheet at the elevated temperatures was assessed with a forming testing machine accompanied by a tailor-made temperature control system. The deformed laser printed circles on the magnesium sheet were measured to plot a forming limiting curve. The most used theoretical forming limiting diagram models were adopted to predict the forming limiting curve and the suitability of the model was checked for the formability prediction of the hexagonal close-packed metals at the elevated temperatures.