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| Effect of process parameters on steel tube roundness in straightening process |
| Li-dong Ma1,2, Yu-kang Du1,3, Zhi-juan Meng4, Li-feng Ma2, Zi-jian Liu1,3, Pei-yu Liu1,3 |
1 Coordinative Innovation Center of Taiyuan Heavy Machinery Equipment, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China
2 School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China
3 School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China
4 School of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030024, Shanxi, China |
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Abstract The inclined six-roll tube straightener is an important equipment for the finishing line. It can not only straighten the steel pipe, but also finish the ovality of the cross section. In the actual straightening process, the cross section of the tube is prone to deform, that is, the roundness is not good. The flattening displacement is an important parameter to control cross-section forming of tube. According to the established mechanical model, the analytical calculation equations of the flattening force and the flattening displacement were derived using the energy method. Based on the finite element simulation data, the ratios of the finite element results of the flattening force to the analytical ones were fitted. The correlation coefficient after fitting is greater than 99%, and the fitting effect is excellent. The flattening experiment was carried out on tubes of different materials and different specifications, and the setting method of the optimal flattening displacement during straightening process was obtained. In the actual straightening process, using this flattening displacement, the ovality of straightened steel tube is less than 0.3%. Therefore, the proposed method can provide a reference for the flattening displacement in the actual straightening process.
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Received: 19 September 2019
Published: 25 November 2020
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| Cite this article: |
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Li-dong Ma,Yu-kang Du,Zhi-juan Meng, et al. Effect of process parameters on steel tube roundness in straightening process[J]. Journal of Iron and Steel Research International, 2020, 27(11): 1270-1283.
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| [1] |
Hai‑long Liu, Yu‑li Liu, Zhong Yang, Kun Wang, Meng‑meng Liu. Determination of continuous constitutive relationship of weld zone of high?strength steel rectangular welded tube[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2020, 27(10): 1212-1225. |
| [2] |
Wen-tao Wang, Jiao Zhang, Feng-li Sui, Zhi-xia Zhang, Hong-yun Bi. A comparison of deformation, microstructure, mechanical properties and formability of SUS436L stainless steel in tandem and reversible cold rolling processes[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2019, 26(5): 442-451. |
| [3] |
Jin-biao Zhou, Peng-yan Sun, Chang-yu Zhou, Xiao-hua He. Experimental characterization of anisotropic tensile mechanical behavior of pure titanium tube[J]. JOURNAL OF IRON AND STEEL RESEARCH,INTERNATIONAL, 2019, 26(1): 91-101. |
| [4] |
Kyu-tae Park . Hyun-chul Park. Effects of design parameters and tension on behavior of a coil using finite element analysis[J]. , 2018, 25(9): 883-891. |
| [5] |
Meng Yan . Jing-na Sun . Hua-gui Huang . Lei Chen . Ke Dong . Zhen-ye Chen. Effect of hot rolling process microstructure properties 2205/Q235 plate[J]. , 2018, 25(11): 1113-1122. |
| [6] |
Long Guo,Xing-zhong Zhang*,Chang-xi Feng. Continuous bending and straightening technology of Q345c slab based on high-temperature creep deformation[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 595-600. |
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2020, Vol. 27 
