Stretch Press Bending of AZ31 Magnesium Alloy Extruded Square Tube

Abstract

The results of the experimental study on bending behaviour of AZ31 magnesium alloy extruded square tube under stretch press bending are presented. Cracking with buckling occurs at compressive side, but we can bend AZ31 tube at room temperature by means of applied axial tension during forming. The mechanism of bending behaviour of AZ31 magnesium alloy tube has been examined from the point of view of the position of neutral axis according to the mechanical properties under tension and compression and flow stress dependency on strain rate.