Simulation Analysis for High Speed Cold Roll-beating Forming Process of 40Cr Steel
-
摘要: 为揭示40Cr高速冷滚打成形机理,依据金属材料塑性变形机理,进行高速冷滚打条件下的40Cr击打试验,得到了40Cr在高速、大变形条件下应力应变曲线;基于冷滚打成形高速大变形的塑形变形特点,结合40Cr在高速、大变形下的应力应变曲线,应用Deform 仿真软件进行了不同变形区域、不同温度、不同应变速率下高速冷滚打成形的分析,揭示了高速冷滚打成形的应力、应变、温度、金属流动变化规律,进一步解释了冷滚打成形的规律,为深入研究高速冷滚打成形奠定基础。Abstract: To explore the deforming mechanism in high speed cold roll-beating of 40Cr, according to the plastic deforming mechanism, we carry out the striking experiments to obtain the strain-stress curves under high speed cold roll-beating conditions of 40Cr. Considering the plastic deformation characteristics of high speed and big deformation, based on the obtained strain-stress curve, we use the Deform simulation software to analyze the high speed cold roll-beating forming in different deforming zones under different temperatures and stain rates so as to reveal the variation laws of strain, stress, temperature and metal flowing characters, which will be helpful to explain the cold roll-beating forming laws and can lay the foundation for further study of cold roll-beating.
-
Key words:
- 40Cr /
- cold roll-beating /
- deform /
- simulation analysis /
- striking experiment
-
[1] 杨合,孙志超,詹梅,等.局部加载控制不均匀变形与精确塑性成形研究进展[J].塑性工程学报,2008,15(2):6-14 Yang H, Sun Z C, Zhan M, et al. Advances in control of unequal deformation by locally loading and theories related to precision plastic forming[J]. Journal of Plasticity Engineering, 2008,15(2):6-14 (in Chinese) [2] 李敏贤,闵乃燕,安桂华,等.精密成形技术发展前沿[J].中国机械工程,2000,11(1):183-186 Li M X, Min N Y, An G H, et al. Frontier of precise shaping technology development[J]. China Mechanical Engineering, 2000,11(1):183-186 (in Chinese) [3] 张璐,李言,杨明顺,等.增量成形研究进展[J].宇航材料工艺,2011,41(6):32-38 Zhang L, Li Y, Yang M S, et al. Recent development of incremental forming[J]. Aerospace Materials & Technology, 2011,41(6):32-38 (in Chinese) [4] 崔凤奎,朱文娟,王晓强,等.高速冷滚打成形技术研究现状与发展趋势[J].河南理工大学学报(自然科学版),2012,31(2):191-195 Cui F K, Zhu W J, Wang X Q, et al. Current research and development trends of high-speed cold rolling technology[J]. Journal of Henan Polytechnic University (Natural Science), 2012,31(2):191-195 (in Chinese) [5] Krapfenbauer H. New aspects for the mass production of spur gears by cold rolling[J]. IPE International Industrial & Production Engineering, 1984,8(3):39-41 [6] Kurz N. Theoretical and experimental investigations of the "Grob" cold shape-rolling process[C]//Twenty-Fifth International Machine Tool Design and Research Conference. London: Macmillan Publishers Ltd., 1985:551-559 [7] Kahn-Jetter Z L, Wright S. Finite element analysis of an involute spline[J]. Journal of Mechanical Design, 2000,122(2):239-244 [8] 崔凤奎,李言,周彦伟,等.渐开线花键滚轧轮CAD及磨削仿真[J].机械工程学报,2005,41(12):210-215 Cui F K, Li Y, Zhou Y W, et al. CAD system of roller for involute spline and simulation of grinding process[J]. Chinese Journal of Mechanical Engineering, 2005,41(12):210-215 (in Chinese) [9] 崔凤奎,李言,周彦伟,等.渐开线花键轴冷滚轧工艺试验[J].农业机械学报,2006,37(12):189-192 Cui F K, Li Y, Zhou Y W, et al. Technologic research on rolling involute spline axis[J]. Transactions of the Chinese Society for Agricultural Machinery, 2006,37(12):189-192 (in Chinese) [10] 张璐,李言,杨明顺,等.丝杠冷滚打成形过程金属流动规律研究[J].中国机械工程,2012,23(13):1623-1628 Zhang L, Li Y, Yang M S, et al. Study on metal flowing of lead screw cold roll-beating forming[J]. China Mechanical Engineering, 2012,23(13):1623-1628 (in Chinese) [11] Yang M S, Li Y, Yuan Q L. A hybrid method to deformation force of high-speed cold roll-beating forming[J]. Journal of Digital Information Management, 2013,11(2):146-153 [12] 杨明顺,李言,袁启龙,等.板料冷滚打成形鳞纹影响因素解析及试验研究[J].机械科学与技术,2013,32(9):1363-1367 Yang M S, Li Y, Yuan Q L, et al. Theoretical analysis and experimental study on stripe of slab cold roll-beating[J]. Mechanical Science and Technology for Aerospace Engineering, 2013,32(9):1363-1367 (in Chinese) [13] 周杰,孙新岭,张涛,等.金属塑性成形有限元模拟中材料体积变化[J].模具技术,2001,1(1):14-16 Zhou J, Sun X L, Zhang T, et al. Volume changing of material in fem simulation of metal forming[J]. Die and Mould Technology, 2001,1(1):14-16 (in Chinese) [14] 崔凤奎,郭超,李玉玺.40Cr钢的塑性流动应力特征及本构关系[J].河南科技大学学报(自然科学版),2012,33(6):1-5,19 Cui F K, Guo C, Li Y X. Flow stress characteristics and dynamic constitutive model for 40Cr steel[J]. Journal of Henan University of Science & Technology (Natural Science), 2012,33(6):1-5,19 (in Chinese) [15] 杨理诚,刘波,岳志刚.基于耦合热变形的线材轧制数值模拟研究[J].锻压技术,2005,30(z1):185-189 Yang L C, Liu B, Yue Z G. Study on numerical simulation for wire rod based on thermal-mechanical deformation[J]. Forging & Stamping Technology, 2005,30(z1):185-189 (in Chinese)
点击查看大图
计量
- 文章访问数: 162
- HTML全文浏览量: 36
- PDF下载量: 6
- 被引次数: 0