方矩形管连续辊弯成型延伸规律

doi:10.13229/j.cnki.jdxbgxb201502023

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

方矩形管连续辊弯成型延伸规律

付志强^1，2，安子军¹，杜凤山^1，2，段利英¹，于辉¹，杨帆^1，2

1.燕山大学机械工程学院，河北秦皇岛，066004；
2.燕山大学国家冷轧板带装备及工艺工程技术研究中心，河北秦皇岛，066004

收稿日期:2013-06-13 出版日期:2015-04-01 发布日期:2015-04-01
通讯作者: 杜凤山(1960)，男，教授，博士生导师.研究方向:轧制设备、工艺及其数字化技术.E-mail:fsdu@ysu.edu.cn
作者简介:付志强(1982)，男，博士研究生.研究方向:型钢孔型设计及过程仿真技术.E-mail:fzq6670300@163.com
基金资助:
国家自然科学基金项目(51075352，51275445).

Elongation of rectangular tube in continuous roll forming

FU Zhi-qiang^1,2,AN Zi-jun¹,DU Feng-shan^1,2,DUAN Li-ying¹,YU Hui¹,YANG Fan^1,2

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

摘要/Abstract

摘要： 为了减小方矩形管辊弯成型时纵向延伸，结合某厂实际生产工艺，建立了方矩形管辊弯成型七机架的三维弹塑性非线性有限元模型。通过仿真分析得到了方矩形管辊弯成型时横向金属流动规律及纵向延伸率的分布规律，与现场测量结果一致。分析了轧辊转速、管坯壁厚、辊径位置等因素对延伸率的影响，在此基础上优化了辊弯轧制工艺参数。结果表明:优化后的辊弯轧制工艺提高了方矩形管的成型质量，为预测最终成型尺寸精度和辊弯成形工艺参数的制定提供了理论依据。

关键词: 连续轧制, 方矩形管, 辊弯成型, 延伸率, 有限元

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)

中图分类号:

TG335

付志强，安子军，杜凤山，段利英，于辉，杨帆. 方矩形管连续辊弯成型延伸规律[J]. 吉林大学学报(工学版), 2015, 45(2): 487-493.

FU Zhi-qiang,AN Zi-jun,DU Feng-shan,DUAN Li-ying,YU Hui,YANG Fan. Elongation of rectangular tube in continuous roll forming[J]. 吉林大学学报(工学版), 2015, 45(2): 487-493.

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方矩形管连续辊弯成型延伸规律

Elongation of rectangular tube in continuous roll forming

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