FEM simulation of aluminum extrusion process in porthole die with pockets

• Published in: Transactions of Nonferrous Metals Society of China Vol. 20; no. 6; pp. 1067 - 1071
• Main Author: 和优锋 谢水生 程磊 黄国杰 付垚
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.06.2010; State Key Laboratory for Fabrication and Process of Nonferrous Metals,General Research Institute for Nonferrous Metals, Beijing 100088, China
• Subjects: aluminum; Bearing; Computer simulation; DEFORM; die design; extrusion; Extrusion dies; Extrusion rate; FEM simulation; Finite element method; Legs; Mathematical models; Pocket; porthole die; 挤压过程; 有限元模拟; 模具设计; 金属流动; 铝型材; porthole die; aluminum; FEM simulation; extrusion; die design
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(09)60259-4

In order to investigate the effects of pockets in the porthole die on the metal flow,temperature at the die bearing exit and the extrusion load were contrasted with the traditional die design without the pockets in the lower die.Two different multi-hole porthole dies with and without pockets in lower die were designed.And the extrusion process was simulated based on the commercial software DEFORM-3D.The simulation results show that the pockets could be used to effectively adjust the metal flow and especially benefit to the metal flow under the legs.In addition,the maximum temperature at the die bearing and the peak extrusion load decrease,which indicates the possibility of increasing the extrusion speed and productivity.