Analysis and prediction of multi-pass snake hot rolling for 7075 aluminum alloy thick plate

Guo-hua QIN; Yang YANG; Qiang LI; Feng LIN

doi:10.3788/OPE.20172504.0969

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Analysis and prediction of multi-pass snake hot rolling for 7075 aluminum alloy thick plate

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-07-07

- Analysis and prediction of multi-pass snake hot rolling for 7075 aluminum alloy thick plate
- Optics and Precision Engineering Vol. 25, Issue 4, Pages: 969-978(2017)
- 作者机构：
  
  南昌航空大学航空制造工程学院, 江西南昌 330063
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172504.0969
  CLC： V252.22:TG335.11
- Received：21 September 2016，
  
  Accepted：27 December 2016，
  
  Published：25 April 2017
- 稿件说明：
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Guo-hua QIN, Yang YANG, Qiang LI, et al. Analysis and prediction of multi-pass snake hot rolling for 7075 aluminum alloy thick plate[J]. Optics and precision engineering, 2017, 25(4): 969-978.
DOI：

Guo-hua QIN, Yang YANG, Qiang LI, et al. Analysis and prediction of multi-pass snake hot rolling for 7075 aluminum alloy thick plate[J]. Optics and precision engineering, 2017, 25(4): 969-978. DOI： 10.3788/OPE.20172504.0969.

摘要

研究了蛇形轧制工艺参数对铝合金厚板变形与残余应力分布的影响。基于蛇形轧制的咬入条件与本构模型以及边界条件等关键技术，构建了铝合金厚板的单道次蛇形轧制有限元模型，并与相关文献的仿真结果进行了比较，结果显示其相对误差不超过10%。考虑最小、最大压下量均相等的条件下压下量分配对蛇形轧制的影响，建立了多道次蛇形轧制的有限元模型并进行了仿真实验。结果表明：铝厚板应变不是按板厚中心面呈对称分布，慢速辊一侧的应变明显小于快速辊一侧，而且压下量对称递增分配产生的应变最大，单向递增分配产生的应变最小，对称递增比单向递增分配压下量产生的应变平均要高出20%左右。此外，压下量对称递减分配引起的剪切应变最大，单向递增分配引起的剪切应变最小，对称递减分配比单向递增分配压下量产生的剪切应变要高出2倍。

Abstract

The effects of process parameters in a snake hot rolling on the deformation and residual stress distribution of an aluminum alloy thick plate were explored. On the basis of the bite conditions of snake rolling

constitutive model

boundary conditions and other critical technologies

a finite element model of single-pass snake rolling for the aluminum alloy thick plate was established. The simulation results were compared with that of corresponding literatures

and it shows that the relative error is no more than 10%. In condition of the influence of pass reduction distribution on snake rolling at both minimum and maximum pass reductions being equal

the finite element model of multi-pass snake hot rolling was established and a simulation experiment was performed. The result shows that the equivalent strain of aluminum thick plate is not symmetrically distributed in accordance with the central surface; the equivalent strain near the slow roller is obviously smaller than that near the high-speed roller. Moreover

the maximum equivalent strain is generated from the symmetrical increasing distribution of pass reduction and the minimum equivalent strain is generated from one-way increasing distribution. The equivalent strain generated from symmetrical increasing distribution of pass reduction is averagely 20% larger than that generated from one-way increasing distribution. Furthermore

the shear strain generated from symmetrical decreasing distribution is twice that from one-way decreasing distribution

in which the former is the maximum and the latter is the minimum.

关键词

Keywords

references

刘兵, 彭超群, 王日初, 等.大飞机用铝合金的研究现状及展望[J].中国有色金属学报, 2010, 20(9):1705-1715.

LIU B, PENG CH Q, WANG R CH, et al.. Recent development and prospects for giant plane aluminum alloys[J]. The Chinese Journal of Nonferrous Metals, 2010, 20(9):1705-1715. (in Chinese)

孙蓟泉, 戴辉, 唐荻.异步轧制技术发展概况及其应用前景[J].鞍钢技术, 2009, (5):1-6.

SUN J Q, DAI H, TANG D. Development survey and its application prospect of asynchronous rolling technology[J]. Angang Technology, 2009, (5):1-6. (in Chinese)

CHEN S, AN Y G, LAHAIJE C. Toughness improvement in hot rolled HSLA steel plates through asymmetric rolling[J]. Materials Science and Engineering A, 2015, 625:374-379.

ZUO Y B, FU X, CUI J Z, et al.. Shear deformation and plate shape control of hot-rolled aluminium alloy thick plate prepared by asymmetric rolling process[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(7):2220-2225.

杨世德.不对称铝锭热轧技术及轧机简介[J].世界有色金属, 2010, (2):47.

YANG SH D. Introduction of asymmetric aluminum hot rolling and mill[J]. World Nonferrous Metals, 2010, (2):47. (in Chinese)

郑细昭, 吴运新, 张涛, 等.龙形轧制工艺参数对铝合金厚板心部剪切变形的影响[J].热加工工艺, 2014, 43(11):89-93.

ZHENG X ZH, WU Y X, ZHANG T, et al.. Effect of dragon rolling parameters on shear deformation in center of aluminum alloy thick plate[J]. Hot Working Technology, 2014, 43(11):84-93. (in Chinese)

刘杰. 蛇形轧制铝板曲率及组织和性能研究[D]. 长沙: 中南大学, 2014. http://cdmd.cnki.com.cn/Article/CDMD-10533-1014408174.htm

LIU J. Curvature microstructure and mechanical properties of aluminum sheets processed by snake rolling[D]. Changsha:Central South University, 2014. (in Chinese)

付垚, 谢水生, 熊柏青, 等.主应力法计算蛇形轧制的轧制力[J].塑性工程学报, 2010, 17(6):103-109.

FU Y, XIE SH SH, XIONG B Q, et al.. Calculation of rolling force in snake rolling by slab method[J]. Journal of Plasticity Engineering, 2010, 17(6):103-109. (in Chinese)

蒋绍松, 吴运新, 龚海, 等.铝合金厚板蛇形轧制温度场非对称性研究[J].热加工工艺, 2015, 44(3):111-114.

JIANG SH S, WU Y X, GONG H, et al.. Research on temperature asymmetry field of snake rolling of aluminum alloy thick plate[J]. Hot Working Technology, 2015, 44(3):111-114. (in Chinese)

付垚. 高强高韧铝合金厚板的蛇形轧制研究[D]. 北京: 北京有色金属研究总院, 2011. http://cdmd.cnki.com.cn/Article/CDMD-86403-1011132320.htm

FU Y. Research on snake rolling of thick plate of high strength and toughness aluminum alloy[D]. Beijing:Beijing General Research Institute of Nonferrous Metals, 2011. (in Chinese)

SELLARS C M, MCTEGART W J. On the mechanism of hot deformation[J]. Acta Metallurgica, 1966, 14:1136-1138.

张清泉, 刘勇谋, 姚进.中厚板轧制过程的数值模拟分析[J].钢铁钒钛, 2004, 25(3):10-16.

ZHANG Q Q, LIU Y M, YAO J. Numerical Simulation of Plate Rolling Process[J]. Iron Steel Vanadium Titanium, 2004, 25(3):10-16. (in Chinese)

ZHANG T, WU Y X, GONG H, et al.. Effects of rolling parameters of snake hot rolling on strain distribution of aluminum alloy 7075[J]. Transactions of Nonferrous Metals Society of China, 2014, 24(7):2150-2156.

权国政, 张艳伟, 王凤标, 等. 7075铝合金热塑性变形动态再结晶动力学模型[J].机械工程材料, 2011, 35(12):97-101.

QUAN G ZH, ZHANG Y W, WANG F B, et al.. Kinetics model for dynamic recrystallization of 7075 aluminum alloy in thermoplastic deformation[J]. Materials for Mechanical Engineering, 2011, 35(12):97-101. (in Chinese)

钟利, 马英义, 谢延翠.铝合金中厚板生产技术[M].北京:冶金工业出版社, 2009.

ZHONG L, MA Y Y, XIE Y C. Manufacturing Technology of Aluminum Alloy Plate[M]. Beijing:Metallurgical Industry Press, 2009. (in Chinese)

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