Study of Advanced Magnesium Alloys with Improved Bendability for Roll Forming

The growing demand for light weight products for automotive industries has been increased due to global trend of environmental preservation. In recent several years, although production of magnesium has risen dramatically, production of magnesium alloy sheet remains still at a very low level in practical use. The major barrier to greatly increased magnesium alloy use has been in still primarily high manufacturing cost as well as poor workability of wrought magnesium sheet alloys. finite element method (FEM) has been conducted to examine the shapes of cross section, springback characteristics, bending strains and longitudinal membrane strain of magnesium alloy sheet during forming. The aim of our study is to establish a guideline for roll design in the roll forming for wrought magnesium alloy sheet with improved bendability.