东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (2): 197-201.DOI: 10.12068/j.issn.1005-3026.2019.02.009

• 材料与冶金 • 上一篇    下一篇

厚规格钢板差厚轧制数值模拟与工艺研究

武晓刚, 何纯玉, 矫志杰, 王君   

  1. (东北大学 材料科学与工程学院, 辽宁 沈阳110819)
  • 收稿日期:2017-12-23 修回日期:2017-12-23 出版日期:2019-02-15 发布日期:2019-02-12
  • 通讯作者: 武晓刚
  • 作者简介:武晓刚(1994-),男,内蒙古乌兰察布人,东北大学博士研究生.
  • 基金资助:
    “十三五”国家重点研发计划项目(2017YFB0304103); 中央高校基本科研业务费专项资金资助项目(N160704003).

Numerical Simulation and Processing Investigation on Differential Thickness Rolling of Thick Steel Plate

WU Xiao-gang, HE Chun-yu, JIAO Zhi-jie, WANG Jun   

  1. School of Materials Science & Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2017-12-23 Revised:2017-12-23 Online:2019-02-15 Published:2019-02-12
  • Contact: HE Chun-yu
  • About author:-
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摘要: 基于ABAQUS有限元软件,采用显式动力学算法对厚规格钢板三维常规轧制与差厚轧制热力耦合过程进行模拟仿真,获得差厚轧制变形区金属流动与应力、应变分布规律,研究常规轧制与差厚轧制在轧制过程中轧制力与轧制力矩的变化规律,分析差厚轧制对于轧制过程钢板咬入条件的改善.差厚轧制试验结果表明,制定合理的差厚轧制工艺,可以克服厚板坯轧制时的咬入限制,减小头部冲击造成的力矩峰值的影响,增加厚规格钢板心部变形的渗透,在一定程度上可以改善变形均匀性和组织均匀性.

关键词: 差厚轧制, 轧制工艺, 数值模拟, 轧制负荷, 变形均匀性

Abstract: Based on ABAQUS finite element software, dynamic coupling process about three-dimensional conventional rolling and differential thickness rolling for thick steel plates were simulated by an explicit dynamic algorithm. The flow feature and the stress/strain distribution in the distorted region were obtained, the variation laws of rolling force and rolling moment during the process of conventional rolling and differential thickness rolling were studied and the improvement of the biting condition of steel plate during rolling process was analyzed. The results of the differential thickness rolling process show that the reasonable process for the differential rolling can overcome the bite limit of slab rolling, reduce the influence of peak torque caused by head impact and increase the penetration of the core deformation thickness of thick steel plate. Moreover, it can also improve the deformation uniformity and microstructure uniformity at a certain degree.

Key words: differential thickness rolling, rolling process, numerical simulation, rolling load, deformation uniformity

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