吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (2): 487-493.doi: 10.13229/j.cnki.jdxbgxb201502023

• Orignal Article • Previous Articles     Next Articles

Elongation of rectangular tube in continuous roll forming

FU Zhi-qiang1,2,AN Zi-jun1,DU Feng-shan1,2,DUAN Li-ying1,YU Hui1,YANG Fan1,2   

  1. 1.School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China;
    2. National Engieering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China
  • Received:2013-06-13 Online:2015-04-01 Published:2015-04-01

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Abstract: In order to reduce the longitudinal extension of rectangular tube in the roll forming process, a three-dimensional elastic-plastic nonlinear Finite Element Model (FEM) of the roll forming is established with the actual factory production process. The metal flow law in the roll forming of rectangular tube and the distribution of the longitudinal elongation rate are obtained by analyzing the simulation results. The obtained results are consistent with the field measurements. The effects of the roller speed, the thickness of the tube wall and the location of the roll diameter on the elongation are analyzed using the proposed FEM. Then these processing parameters are optimized, which improve the continuous rolling performance of rectangular tubes. This research may help to predict the final dimensional accuracy and determine the processing parameters of the roll forming.

Key words: continuous rolling, rectangular tube, roll forming, elongation, finite element method (FEM)

CLC Number: 

  • TG335
[1] 赵玲玲,安子军,杜凤山,等. 热变形对42CrMo钢奥氏体晶粒尺寸影响的试验研究[J]. 塑性工程学报, 2010, 17(4): 100-103.
Zhao Ling-ling, An Zi-jun, Du Feng-shan, et al. Experimental research on the effect of hot deformation on the growth of austenite grain size of 42CrMo steel[J]. Journal of Plasticity Engineering, 2010, 17(4): 100-103.
[2] 董永刚,张文志,宋剑锋. 钢轨万能轧制过程金属延伸规律的理论与试验研究[J].机械工程学报,2010,46(6):87-92.
Dong Yong-gang, Zhang Wen-zhi, Song Jian-feng. Theoretical and experimental research on the elongation law of the rail in rail rolling by a universal mill[J]. Journal of Mechanical Engineering, 2010, 46(6): 87-92.
[3] 汪飞雪,杜凤山,于辉,等. 基于有限元法的PQF连轧过程宽展规律的仿真[J].钢铁,2013,48(3): 51-55.
Wang Fei-xue, Du Feng-shan, Yu Hui, et al. Spread rule during PQF seamless tube rolling process based on FEM[J]. Iron and Steel, 2013, 48(3): 51-55.
[4] Rossi B, Degée H, Boman R. Numerical simulation of the roll forming of thin-walled sections and evaluation of corner strength enhancement[J]. Finite Elements in Analysis and Design, 2013, 72: 13-20.
[5] 韩飞,刘继英,艾正青,等. 辊弯成型技术理论及应用研究现状[J]. 塑性工程学报,2010,17(5): 53-60.
Han Fei, Liu Ji-ying , Ai Zheng-qing, et al. State of the art of research on roll forming process[J]. Journal of Plasticity Engineering, 2010, 17(5): 53-60.
[6] Tehrani M S, Hartley P, Naeini H M, et al. Localised edge buckling in cold roll-forming of symmetric channel section[J]. Thin-Walled Structures, 2006, 44(2): 184-196.
[7] Huang Y M. Elasto-plastic finite element analysis of squaring circular tube[J]. Transactions of Nonferrous Metals Society of China, 2008,18(3): 665-673.
[8] Leu D K. The shaping of a circular tube into a symmetric square-tube by finite-element modeling[J]. Journal of Materials Processing Technology, 2006, 178 (1): 287-296.
[9] 张小平,李志永,张少琴,等. 异型管辊挤成型过程的数值模拟与实验研究[J].塑性工程学报,2005,12(4): 38-42.
Zhang Xiao-ping, Li Zhi-yong, Zhang Shao-qin, et al. FEM analysis and experiment study of non mandrel double pass roll extrusion process of shaped tube[J]. Journal of Plasticity Engineering, 2005, 12(4): 38-42.
[10] 徐树成,刘才. 方矩形管连续辊弯成形过程的变形和应力场[J].机械工程学报,2000,36(3):93-96.
Xu Shu-cheng, Liu Cai. Deformation and stress field of square rectangle tube in continue roll forming process[J]. Journal of Mechanical Engineering, 2000, 36(3): 93-96.
[11] 杜凤山,陆卫平,张建宇,等. 方管闭式辊弯成型过程的变形及流场[J]. 东北重型机械学院学报,1997,21(2):100-103.
Du Feng-shan, Lu Wei-ping, Zhang Jian-yu, et al. Deformation and flow fields of the square tube forming of 4-roll bending[J].Journal of Northeast Heavy Machinery Institute, 1997, 21(2): 100-103.
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