The continuous rotary extrusion (CRE) process of the AZ31 magnesium alloy with various deformation zone geometry

Abstract. The presented studies are focused on the continuous rotary extrusion (CRE) process, also known in the literature under the Conform® name. The CRE process is commonly used for aluminum and copper alloys but is new for magnesium alloys. A broader understanding of the application of the CRE process and the input material, the AZ31 magnesium alloy, enables the combination of a new, economical method of plastic deformation of the material with the desired final properties. The main aim of the presented work was to analyze how different deformation zone geometry influences the quality of the extruded AZ31 magnesium rods. Additionally, the properties of the CRE extruded rods were compared to the traditionally directly extruded (DE) rods. The research was conducted to analyze the impact of the CRE process parameters on the mechanical properties of the obtained rods, as well as on changes occurring in grain size, texture, and the level of recrystallization.