Pulsed magnetic forming of the magnesium alloy AZ31 – Comparison to quasi-static forming

Abstract

Magnesium alloy AZ31 metal sheets were formed at room temperature with a pulsed magnetic field induced by a flat coil. For this a die with variable die radius and inside diameter was used. The forming results were evaluated regarding to deformation, die radius, inside diameter, micro hardness, texture examination of forming area and energy input. In addition high velocity forming process was compared to a quasi-static forming process at room temperature. Therefore an experimental setup with an adapted punch was constructed. Punch geometry was defined in dependence of the high velocity forming structure of a sample at well-defined energy input. By comparing texture and micro hardness at forming area a distinction of high-speed forming process and quasi-static process is determined.