FEM Simulation of an Al-alloy Profile with Non-symmetrical Cross Section During Porthole Extrusion
HUANG Dong-nan1, YU Yang2, NING Yu3, MA Yu1
1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Beijing Institute of Aeronautical Materials, Beijing 100095, China;
3. Iron & Steel Department of Zhonghui International Insurance Brokers Co., Ltd., Beijing 100020, China
Abstract：A mesh-reconstruction technology of welding-plane is introduced based on Deform-3D and Pro/Engineer software. Applying the technology, the metal flowing behaviors, temperature fields and mandrel stress distributions during the whole extrusion processes of two hollow profiles are analyzed. The results show that, the reconstruction technology is effective for simulation the whole extrusion process (including dividing, welding and forming) of hollow profiles with irregular cross section. The mesh-reconstruction technology provides a new method to investigate the metal flowing behavior, die structure optimization, temperature distribution of ingot, die stress during welding stage of porthole extrusion.
黄东男, 于洋, 宁宇, 马玉. 分流模挤压非对称断面铝型材有限元数值模拟分析[J]. 材料工程, 2013, 0(3): 32-37.
HUANG Dong-nan, YU Yang, NING Yu, MA Yu. FEM Simulation of an Al-alloy Profile with Non-symmetrical Cross Section During Porthole Extrusion. Journal of Materials Engineering, 2013, 0(3): 32-37.
[1] 村上哲.アルミニうムの合金押出材と加工技術[J] . 塑性と加工,2008,49(567):25-30.MURAKAMI S. Adoption of aluminum extrusion and its technology[J]. Journal of the Japan Society for Technology of Plasticity, 2008, 49(567): 25-30.[2] 谢建新,刘静安.金属挤压理论与技术[M].北京:冶金工业出版社,2001.[3] XIE J X, MURAKAMI T, IKEDA K. Experimental simulation of metal flow in porthole-die extrusion[J]. Journal of Materials Processing Technology,1995,49(1-2):1-11.[4] JO H H, LEE S K, JUNG S C. A non-steady state FE analysis of Al tubes hot extrusion by a porthole die [J]. Journal of Materials Processing Technology, 2006, 173(2): 223-231.[5] LIU G, ZHOU J, DUSZCZYK J. FE analysis of metal flow and weld seam formation in a porthole die during the extrusion of a magnesium alloy into a square tube and the effect of ram speed on weld strength [J]. Journal of Materials Processing Technology, 2008,200(1-3):185-198 .[6] 程磊,谢水生,黄国杰,等. 分流组合模挤压过程的有限元分步模拟[J].系统仿真学报,2008,20(24):6603-6608.CHENG L, XIE S S,HUANG G J,et al. Multi-stage finite element simulation of porthole die extrusion process[J]. Journal of System Simulation, 2008,20(24):6603-6608.[7] 邸利青,张士宏.分流组合模挤压过程数值模拟及模具优化设计[J].塑性工程学报,2009,16(2):123-127.DI L Q,ZHANG S H. Porthole die extrusion process numerical simulation and optimal die design[J]. Journal of Plasticity Engineering, 2009, 16(2):123-127.[8] JUNG M L, BYUNG M K, CHUNG G K. Effects of chamber shapes of porthole die on elastic deformation and extrusion process in condenser tube extrusion[J].Materials and Design,2005, 26(4):327-336.[9] LI L, ZHANG H, ZHOU J. Numerical and experimental study on the extrusion through a porthole die to produce a hollow magnesium profile with longitudinal weld seams[J]. Materials and Design, 2008,29(6): 1190-1198.[10] WU X H, ZHAO G Q, LUAN Y G, et al. Numerical simulation and die structure optimization of an aluminum rectangular hollow pipe extrusion process[J]. Materials Science and Engineering A, 2006,435(5):266-274.[11] YANG D Y, KIM K J. Design of processes and products through simulation of three-dimensional extrusion[J]. Journal of Materials Processing Technology,2007,191(1-3):2-6.[12] 谢建新,黄东男,李静媛,等. 一种空心型材分流模挤压焊合过程数值模拟技术.中国专利:CN 101604350A,2009-12-16.[13] 黄东男,李静媛,张志豪,等.方形管分流模双孔挤压过程中金属的流动行为[J].中国有色金属学报,2010,20(3): 487-495. HUANG D N, LI J Y, ZHANG Z H, et al. The metal flowing behaviors during the diplopore extrusion of square tube by a porthole die[J]. The Chinese Journal of Nonferrous Metals,2010,20(3):487-495.
2013, Vol. 0 
