Transactions of Materials and Heat Treatment

Title：Simulation optimization on extrusion speed for extra-wide aluminum profile with thin-walls used for railway vehicles

Authors： Zong Rongrong1 2 Hao Qiuhong1 2 Li Junpeng1 2 Wang Jinghai1 2 Cheng Rence1 Cheng Renzhai1

Unit： 1.Shandong Nanshan Aluminum Co. Ltd. 2.Beijing Nanshan Institute of Aeronautical Materials

KeyWords： extra-wide aluminum profile extrusion numerical simulation extrusion speed

ClassificationCode：

year,vol(issue):pagenumber：2015,40(7):141-145

Abstract：

Extrusion speed is an important parameter in the extrusion process of aluminum profiles, and has direct effects on extrusion force, productivity and the quality of extrusion product. For aluminum alloy 6N01 profile used in railway vehicles, the steady extrusion forming process under different extrusion speeds was numerically simulated based on the HyperXtrude commercial software. The variations of extrusion force, temperature field and velocity field during the extrusion process were obtained. The results indicate that the extrusion force, temperature and heterogeneity of the metal outlet increase with the increase of extrusion speed. On the basis of simulated results and theoretical analysis, the optimum extrusion speed is determined between 0.6 and 0.9 mm·s-1 for the aluminum alloy 6N01 profile on 150 MN extrusion press. In the practical trial production, the qualified extrusion profile was obtained by optimized extrusion speed, and the feasibility of the numerical simulation was verified.

Funds：

科技部国家铝合金压力加工工程技术研究中心重点项目（2012FU125Q14）

纵荣荣（1984-10），女，硕士，工程师

Reference：

[1]陈彪彪.铝型材挤压的数值模拟及工艺研究 [D]．广州：广东工业大学，2012．

Chen B B．Numerical Simulation and Research of Aluminum Extrusion[D]．Guangzhou：Guangdong University of Technology，2012．

[2]王尧，周照耀，潘健怡，等．基于ALE有限元法的铝型材挤压成形的数值模拟 [J］．锻压技术，2010，35（1）：149-153．

Wang Y，Zhou Z Y，Pan J Y，et al．Numerical simulation on aluminum profile extrusion based on ALE method [J]．Forging & Stamping Technology，2010，35（1）：149-153．

[3]唐妍．不同挤压速度对铝型材挤压过程的影响 [J]．机械设计与制造工程，2013，42（9）：58-61．

Tang Y．The effects of different extrusion speed on the Aluminum profile extrusion process [J]．Machine Design and Manufacturing Engineering，2013，42（9）：58-61．

[4]陈浩．空心铝合金型材挤压过程数值模拟及模具优化方法研究[D]．济南：山东大学，2012．

Chen H．Research on Numerical Simulation of Extrusion Process and Die Optimization Method for Hollow Aluminum Profiles [D]．Jinan：Shandong University，2012．

[5]Li L， Zhou J， Duszczyk J．Prediction of temperature evolution during the extrusion of 7075 aluminium alloy at various ram speeds by means of 3D FEM simulation [J]．Journal of Materials Processing Technology，2004,145：360-370．

[6]闫洪，夏巨谌，李志刚，等．工艺参数对铝型材挤压变形规律的影响[J]．中国有色金属学报，2002，12(6)：1154-1161．

Yan H，Xia J C，Li Z G，et al．Effect of technological parameters on profile extrusion forming process [J]．The Chinese Journal of Nonferrous Metals，2002，12(6)：1154-1161．

[7]傅建，彭必友，李军．铝型材挤出速度对模具工作带的影响[J]．塑性工程学报，2005，12（8）：27-30．

Fu J，Peng B Y，Li J，Influence of exit velocity at the aluminum profile extrusion on the die land [J]. Journal of Plasticity Engineering，2005，12(8)：27-30．

[8]倪正顺，刘石柏，田胜利，等．铝型材挤压成型数值模拟与模具优化设计[J]．铸造技术，2012，33（5）：596-599．

Ni Z S，Liu S B，Tian S L，et al．Numerical simulation on aluminum profile extrusion process and optimization design of die[J]．Foundry Technology，2012，33（5）：596-599．

[9]陈珍山，黄瑶，王雷刚，等．空心管坯挤制铝型材的数值模拟和实验分析[J]．锻压技术，2013，38（6）：173-177．

Chen Z S，Huang Y，Wang L G，et al．Experiment and numerical simulation analysis of extruded aluminum profiles with hollow billets[J]．Forging & Stamping Technology，2013，38（6）：173-177．

[10]高素荷，姚河省．网格划分密度与有限元求解精度研究[A]．第三届中国CAE工程分析技术年会论文集[C].大连，2007．

Gao S H，Yao H S．Mesh density and finite element solving precision of research [A]．Proceedings of The 3rd China CAE Analysis Technology Annual Conference[C].Dalian,2007．

[11]吴向红，赵国群，孙胜，等．挤压速度和摩檫状态对锅型材挤压过程的影响[J]．塑性工程学报，2007，14(1)：36-41．

Wu X H，Zhao G Q，Sun S，et al．The influence of extrusion speed and frictional status on aluminum profile extrusion processes [J]．Journal of Plasticity Engineering，2007，14(1)：36-41．

[12]雷同飞，张宏．汽车发动机用 6A02 铝合金管材挤压速度仿真优化 [J]．热加工工艺，2013，42(15)：108-112．

Lei T F，Zhang H．Optimization of extrusion speed of 6A02 aluminum alloy tube for automotive engine based on FE [J]．Hot Working Technology，2013，42(15)：108-112．

[13]Zhang Cunsheng，Zhao Guoqun，Chen Zhiren，et al．Effect of extrusion stem speed on extrusion process for a hollow aluminum profile [J]．Materials Science and Engineering B, 2012,177:1691-1697．

[14]潘健怡．铝合金型材挤压的数值模拟及模具结构优化研究[D]．广州：华南理工大学，2010．

Pan J Y．Study on Numerical Simulation of Aluminum Profile Extrusion Process and Structure Optimization of Extrusion Die [D]．Guangzhou：South China University of Technology，2010．

[15] 蒋焘，陈国学，吴森．空心铝型材挤压过程计算机仿真系统[J]．塑性工程学报，2005，12(2)：73-77．

Jiang T，Chen G X，Wu S．The development of a computer simulation system for hollow aluminum profile extrusion dies[J] .Journal of Plasticity Engineering，2005，12(2)：73-77．

Service：

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