锻压技术

锥形细长阶梯轴的三辊楔横轧楔形设计及模拟分析

英文标题：Wedge design and simulation analysis of three-roll cross wedge rolling for conical slender multi-diameter shaft

作者：李灵凤刘才溢刘志亮贾占江

单位：燕山大学

分类号：TG335.19

出版年,卷(期):页码：2014,39(6):65-70

摘要：

为了解决锥形细长阶梯轴车削加工困难的问题，针对可拆卸穿墙螺栓锥形细长阶梯轴类零件的三辊楔横轧成形工艺进行分析研究。通过轴向轧制力理论计算和有限元模拟分析，得到了三辊楔横轧轧机在轧制非对称轴时的各楔起楔位置，并给出了适合的展宽角β、楔数和坯料尺寸。分析了轧件在三辊楔横轧轧制工况下的非对称轴轧制成形过程中各阶段的应力场和应变场分布状况，以及轧件内部的材料流动速度场和位移场。得到了轧件各特征点的应力应变在整个轧制过程中随时间的连续变化规律。

In order to solve the problem of processing difficulties in conical slender multi-diameter shaft turning, the three-roll cross wedge rolling process of conical slender multi-diameter shaft used as removable wall bolt was analyzed. Through the theoretical calculation of axial rolling force and finite element analysis, the each primary wedge position, the suitable broadening angle β,the wedge number and the blank size in non-symmetry axis rolling by three-roll cross wedge rolling mill were obtained. The distribution of stress and strain fields for various stages in the forming process of non-symmetry axis rolling under the condition of three-roll cross wedge rolling and the velocity and displacement fields of material flow inside the rolling parts were analyzed, as well as the stress and strain continuous variation law with time for the feature points in the whole rolling process.

基金项目：

河北省建设科技研究计划项目(20122084)

参考文献：

［1］李志刚. 列车车轴楔横轧精制坯新设备与新工艺[D]. 长春:吉林大学,2010.Li Zhigang. Equipment and Technology on Cross Wedge Rolling Precision Performing of Raiwey Axels[D]. Changchun:Jilin University,2010.
［2］高伟. 基于数值模拟的锥形轴类件楔横轧成形研究[D]. 长春:吉林大学,2009.Gao Wei. Research on Cross Wedge Rolling of Cone-Shaped Shaft Parts Based on Numerical Simulation[D]. Changchun:Jilin University,2009.
［3］刘桂华. 楔横轧三维变形的数值模拟研究及内部缺陷预防[D]. 北京:机械科学研究总院,2008.Liu Guihua. Numerical Simulation of the 3-D Deformation and Interior Defects Avoidance in Cross-Wedge Rolling Process[D]. Beijing: Mechanical Science Research Institute,2008.
［4］束学道. 楔横轧多楔同步轧制理论与应用[M]. 北京:科学出版社,2011.Shu Xuedao. Synchronous Rolling with Multi-Wedge Cross Wedge Rolling Theory and Application[M]. Beijing:Science Publishing House,2011.
［5］杜朝蓬,袁文生,史宝军,等. 楔横轧多楔同步轧制技术的应用及发展[J]. 山东建筑大学学报,2007,22(5):82-85.Du Zhaopeng, Yuan Wensheng, Shi Baojun, et al. Application and development of synchronous rolling with multi-wedge cross wedge rolling[J]. Journal of Shandong Construction University,2007,22(5):82-85.
［6］束学道，张康生，胡正寰，等. 楔横轧力能参数影响因素分析[J]. 重型机械，2002,（4）:31-35.Shu Xuedao, Zhang Kangsheng, Hu Zhenghuan, et al. Factors affecting parameters of force and energy in cross wedge Rolling[J]. Heavy Machinery,2002,（4）:31-35.
［7］徐江江. 三辊楔横轧的同步轧制技术[D]. 秦皇岛：燕山大学，2010.Xu Jiangjiang. Synchronous Rolling of Trio Cross Wedge Rolling[D]. Qinhuangdao:Yanshan University,2010.
［8］黄德政，周建军. 不对称轴类件楔横轧工艺与孔型设计[J]. 二汽科技,1988,(6):24-31.Huang Dezheng, Zhou Jianjun. Not symmetric axis parts process and pass design of cross wedge rolling[J]. China Academic Journal Electronic Publishing House,1988,（6）:22-28.
［9］尚仲平,王胜强,刘志亮，等.细长轴楔横轧模具设计及仿真实验[J]. 塑性工程学报,2013,20（2）:44-50.Shang Zhongping, Wang Shengqiang,Liu Zhiliang,et al. Cross wedge rolling mould of slender shaft design and simulation[J]. Journal of Plasticity Engineering, 2013, 20(2): 44-50.

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