Transactions of Materials and Heat Treatment

Title：Numerical study of isothermal extrusion process for ZK60 magnesium alloy thin-wall rectangular tube

Authors： LI Rong-bing

Unit： Xuzhou College of Industrial Technology

KeyWords： ZK60 magnesium alloy thin-walled rectangular tube isothermal extrusion extrusion temperature ram speed

ClassificationCode：TG376.9

year,vol(issue):pagenumber：2013,38(6):170-173

Abstract：

The proper design of ram speed plays a crucial role in the isothermal extrusion process of ZK60 magnesium alloy thin-wall rectangular tube. The influence law of ram speed on the temperature of thin-walled rectangular tube was investigated and revealed by comprehensive numerical simulations under the Deform-3D software environment combined with Pro/E software. And the temperature range for the isothermal extrusion process of ZK60 magnesium alloy thin-walled rectangular tube was proposed, and the ram speed was deterimined. Finally, the correctness of the optimized results and FE model were verified by experiments.

Funds：

2011年徐州市科技发展基金计划（XZZD1103）

Reference：

［1］Chanda T, Zhou J, Duszczyk J. A comparative study on iso-speed extrusion and isothermal extrusion of 6061 Al alloy using 3D FEM simulation[J]. Journal of Materials Processing Technology, 2001, 114(2): 145-153.
［2］魏文婷. ZK60 镁合金等温挤压成形及组织性能变化规律研究[D]. 武汉：武汉理工大学, 2010. Wei W T. ZK60 Magnesium Alloy Isothermal Extrusion Forming and Organization Performance Change Law Research [D]. Wuhan:Wuhan University of Technology,2010.
［3］席海霞. ZK60 镁合金挤压过程数值模拟研究[D]. 哈尔滨：哈尔滨理工大学, 2009.   Xi H X. Study on Numerical Simulation of Extrusion Forming for ZK60 Magnesium Alloys[D]. Harbin:Harbin University of Science and Technology, 2009.
［4］石磊, 李继文, 李永兵, 等. 高精度 AZ31 镁合金薄壁管件等温挤压后的组织与性能[J]. 热加工工艺, 2009, 38(20): 42-45.   Shi L, Li J W. Li Y B, et al. Study on microstructure and mechanical properties of thin wall AZ31 magnesium alloy pipes with high precision by isothermal extrusion technology[J]. The Hot Working Processes, 2009, 38(20): 42-45.
［5］王忠堂, 贺琳, 梁海成, 等. ZK60 镁合金管材热挤压成形组织演变规律[J]. 金属热处理, 2011, 36(12): 74-77.   Wang Z T, He L, Liang H C, et al. Microstructure evolvement of ZK60 magnesium alloy during tube hot extrusion[J]. Heat Treatment of Metals, 2011, 36(12): 74-77.
［6］席海霞, 于彦东, 周浩, 等. ZK60 镁合金棒材挤压过程有限元分析[J]. 哈尔滨理工大学学报, 2010, 15(1): 60-63.

Xi H X, Yu Y D, Zhou H, et al. Finite element analysis of extrusion forming of ZK60 magnesium alloy bar[J]. Journal of Harbin Institute of Technology University, 2010, 15(1): 60-63.
［7］Zhou J, Li L, Duszczyk J. Computer simulated and experimentally verified isothermal extrusion of 7075 aluminium through continuous ram speed variation[J]. Journal of Materials Processing Technology, 2004, 146(2): 203-212.
［8］吴丽平, 刘建雄, 刘新胜, 等. 基于塑性变形有限元模拟的模具结构优化[J]. 锻压技术, 2006, 31(2): 55-57.   Wu L P, Liu J X, Liu X S, et al. Optimizing die structure based on the plastic forming FEM simulation[J]. Forging & Stamping Technology, 2006, 31(2): 55-57.
［9］覃银江, 潘清林, 何运斌, 等. ZK60 镁合金高温流变本构模型[J]. 中南大学学报: 自然科学版, 2010, 41(5): 1774-1778.Tan Y J, Pan Q L, He Y B, et al. Constitutive modeling for elevated temperature flow behavior of ZK60 magnesium alloy[J]. Journal of Central South Uiversity: Natural Science Edition, 2010, 41(5): 1774-1778.

Service：

【This site has not yet opened Download Service】【Add Favorite】