锻压技术

行星轧制过程中滑动系数的研究

英文标题：Research on sliding coefficient of planetary rolling process

作者：曾庆龄臧勇朱旭车延明

分类号：TG339

出版年,卷(期):页码：2015,40(5):84-89

摘要：

采用理论分析方法，通过对行星轧制过程中横截面处的金属流动情况以及轧件的受力情况和扭矩的计算方法进行分析，得到了轴向滑动系数以及切向滑动系数的计算方法，将其与有限元模拟计算的结果进行对比分析。结果表明：变形区内的切向速度先缓慢减小，然后急剧减小到最小值，再有所增大；而变形区内轴向速度先缓慢增加，再急速增大，随后有个缓慢变化区，最后有所增大。本方法计算得到的滑动系数的变化趋势与采用有限元仿真分析得到的结果变化趋势是一致的；验证了该理论计算方法的正确性。通过对轧制变形区内的滑动系数进行理论计算，可以更为准确地描述轧制过程中的金属流动规律。

With theoretical analysis method, the calculation methods of axial sliding coefficient and tangential sliding coefficient were obtained by analyzing the metal flow of cross-section and the force and torque of the rolled-piece in planetary rolling process. The theoretical results were compared and analyzed with the numerical simulation results. The results show that the tangential velocity in the deformation zone reduces slowly at first, and then decreases to the minimum value sharply, after that it increases. The axial velocity in the deformation zone increases slowly at first, then increases rapidly, and finally increases through a slowly changing zone. The compared results show that the trends obtained by theoretical calculation are consistent with that obtained by finite element analysis, so the theoretical analysis method is verified. The metal flow rule in the rolling process is described accurately by calculating the sliding coefficient.

基金项目：

广东省教育部科技部产学研结合项目(2010B091000003)

曾庆龄（1985-），女，博士研究生臧勇（1963-），男，硕士，教授，博士生导师

参考文献：

［1］傅文祖.大压下三辊行星轧机的进展[J].江苏冶金，1987，（5）：32-37.Fu W Z. The development of three-roll planetary mill with heavy reduction [J]. Jiangsu Metallurgy, 1987，（5）：32-37.
［2］陈晓建，张士宏.铜管四辊行星轧制过程有限元模拟分析[J].塑性工程学报，2009，16(1)：110-114.Chen X J, Zhang S H. The finite element analysis on four-roll planetary rolling process of copper tube [J]. Journal of Plasticity Engineering, 2009, 16(1):110-114.
［3］李立敏，臧勇，姚会忠，等.摩擦状况对铜管行星轧制过程的影响[J].塑性工程学报，2009，16(1)：115-119.Li L M, Zang Y, Yao H Z, et al. The effect of friction state on the planetary rolling process of copper tube [J]. Journal of Plasticity Engineering, 2009, 16(1):115-119.
［4］李立敏，臧勇，张占柱，等.铜管行星轧制过程金属流动规律的研究[J].机械设计与制造，2010，1(1)：115-117.Li L M, Zang Y, Zhang Z Z, et al. Study on the flow law of metal in the planetary rolling process of copper tube [J]. Machinery Design & Manufacture, 2010, 1(1):115-117.
［5］黄勇，张海兵.三辊行星轧机轧制过程有限元分析[J].重型机械，2008，(4)：35-38.Huang Y, Zhang H B. The analysis of three-roll planetary mill rolling process by FME [J]. Heavy Machinery, 2008，(4)：35-38.
［6］李冰，杨志，刘化民，等.三辊行星轧制运动和管坯变形规律的仿真模拟[J].塑性工程学报，2005，12(5)：70-73.Li B, Yang Z, Liu H M, et al. Computer simulation on the movement and deformation rules of three roll planetary rolling process of copper tube[J]. Journal of Plasticity Engineering, 2005, 12(5):70-73.
［7］黄勇，张海兵.三辊行星轧机轧制力计算[J].重型机械，2008，(2)：27-31.Huang Y, Zhang H B. The calculation of rolling force of the three-roll planetary mill [J]. Heavy Machinery, 2008，(2)：27-31.
［8］Carolin Binotsch, Andreas Feuerhack, Birgit Awiszus, et al. FEM Simulation of planetary cross rolling process for production of seamless tubes of steel and copper [J]. Metal Forming, 2010, （9）: 226-229.
［9］岳峰丽，刘劲松.TP2铜管坯三辊行星旋轧变形规律模拟[J].锻压技术，2009，34(2)：43-46.Yue F L, Liu J S. Simulation of TP2 three-roll planetary rolling[J]. Forging & Stamping Technology, 2009, 34(2)：43-46.
［10］李立敏.大直径薄壁铜管行星轧制及其辊形研究[D].北京:北京科技大学，2009.Li L M. Study on the Planetary Rolling of Large-diameter Thin-wall Copper Pipe and Its Roll Shape [D]. Beijing: University of Science and Technology Beijing，2009.
［11］刘鸿文.材料力学[M].北京：高等教育出版社，2004.Liu H W. Mechanics of Materials [M]. Beijing: Higher Education Press, 2004.

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