Experimental investigation and numerical simulation of large-sized aluminum tube extrusion forming

来源期刊：中南大学学报(英文版)2008年第z2期

论文作者：吕亚臣 骆俊廷 马春荣 徐岩

文章页码：293 - 295

Key words：large-sized aluminum tube； extrusion； numerical simulation

Abstract: Large-sized aluminum tube has big section effect, aspect ratio and thin thickness, so that the extrusion technology is complex and the large specific pressure is generated in extrusion cavity. The temperature variation and velocity effect is difficult to control. The extrusion forming of large-sized aluminum tube was researched and simulated. Three-dimensional thermo-mechanical coupled finite element model was constructed and appropriate boundary conditions were given out. The results show that large-sized aluminum tube can be formed by isothermal extrusion through controlling the extrusion velocity and founding the relationship between extrusion velocity and extrusion temperature.