Numerical optimization of billet diameter in the wide-spread and split extrusion process

Abstract The research object was the wide-spread shunt extrusion production of large-diameter thick-walled AZ31 magnesium alloy pipe with 360mm outer diameter and 10mm wall thickness. Based on DEFORM-3D finite element software platform, simulation study influence billet pressure carried out to provide theoretical support for reasonable selection equipment tonnage. results show that peak increases increase diameter, increasing speed is accelerated. By reducing can be gradually reduced from 4800 tons 2200 tons, maximum cargo saved by more than 50%. If 3600 extruder used, should less 325mm; 2500 285mm.