Transactions of Materials and Heat Treatment

Title：FEM simulation and analysis on reversible rolling process of asymmetric groove BD2 for heavy rail steel

Authors： Tan Hailin1 Lai Chunming1 2 Zhou Jialin2 Lei Borong3 Wang Jun3

Unit： 1.Hunan Chemical Vocational Technology College 2.Wuhan University of Science and Technology 3.Wuhan Iron and Steel Co. Ltd.

KeyWords： steel U71Mn finite element equivalent stress equivalent strain temperature field rolling force

ClassificationCode：

year,vol(issue):pagenumber：2015,40(10):142-148

Abstract：

The steel tilting and lateral pushing process were achieved by turning over and moving the rollers respectively, and the reversible rolling was achieved by loading an acceleration to the workpiece. A coupled thermo-mechanical simulation was carried out on the reversible rolling process of asymmetric groove BD2 for heavy rail steel 60 kg·m-1, and the distribution of equivalent strain and temperature change and rolling force on the cross-sectional of the workpiece in each step were analyzed. The results show that there is a large area with low deformation at the center of rolled pieces, which is separated into two parts with the rolling process, and finally two lower deformation area at the center of the head and rail bottom are formed respectively. Above deformation regularities are harmful to repair the defect of billet core. Furtherly, the highest temperature appears in the middle between the center and the surface. The measured values of temperature and rolling force are in good agreement, and the effectiveness of this model is verified.

Funds：

谭海林（1968-），男，硕士，副教授

Reference：

[1]赖春明.60 kg·m-1重轨全道次轧制金属流动规律的有限元模拟[D].武汉：武汉科技大学，2014.

Lai C M.Finite Element Simulation of the Metal Flow during the Whole Rolling Process of 60 kg·m-1 Heavy Rail[D].Wuhan：Wuhan University of Science and Technology，2014.

[2]Sui Feng-li，Chen Qi-wei，Zhu Guo-hui，et al. Deformation uniformity of cold-rolled Q235 steel rebar by FEM in bending and rolling processes[J].Journal of Iron and Steel Research:International，2012，19(8)：37-42.

[3]Mahdi Bagheripoor，Hosein Bisadi.Effects of rolling parameters on temperature distribution in the hot rolling of aluminum strips[J].Applied Thermal Engineering，2011，31(10)，1556-1565.

[4]Siyu Yuan，Liwen Zhang，Shulun Liao，et al.Static and dynamic finite element analysis of 304 stainless steel rod and wire hot continuous rolling process[J].Jourmal of University of Science and Technology Beijing，2008，15(3)：324-329.

[5]胡盛德，吴晓冬，肖颐,等.HFW焊管排辊成形精成形段有限元仿真分析[J].锻压技术,2015,40(3):62-66.

Hu S D，Wu X D，Xiao Y，et al.Simulation analysis on fin-forming segment of cage roll-forming for HFW pipes[J].Forging & Stamping Technology, 2015,40(3):62-66.

[6]Sen-dong Gu，Li-wen Zhang，Chong-xiang Yue，et al.Multi-field coupled numerical simulation of microstructure evolution during the hot rolling process on GCr15 steel rod[J].Computational Materials Science，2011，50：1951-1957.

[7]马劲红，陶彬，姚晓晗, 等.H型钢轧制规程对端部舌形的影响[J].锻压技术,2014,39(8):37-41.

Ma J H，Tao B，Yao X H，et al.Effect of rolling scheme on the head tongue shape of H-beam[J].Forging & Stamping Technology, 2014,39(8):37-41.

[8]陈林，孙盛志.U75V重轨钢BD2开坯过程有限元数值模拟和分析[J].特殊钢，2012，33(3)：12-14.

Chen L，Sun S Z.Finite element numerical-simulation and analysis on BD2 blooming process of heavy rail steel U75V[J].Special Steel，2012，33(3)：12-14.

[9]李建超，麻永林，王宝峰,等.连铸坯轧重轨变形规律有限元模拟[J］.塑性工程学报，2005，12(6)：20-22.

Li J C，Ma Y L，Wang B F，et al.Simulation of deformation law of heavy rail rolled from bloom by FEM[J].Journal of Plasticity Engineering，2005，12(6)：20-22.

[10]宗伟，高密超，田仲良,等.重轨开坯轧制中金属质点流动的有限元模拟及分析[J].中国材料科技与设备，2008，(4)：72-74.

Zong W，Gao M C，Tian Z L，et al.Finite element simulation and analysis on metal flow of heavy rail blooming[J].Chinese Materials Science Technology & Equipment，2008，(4)：72-74.

[11]原思宇，丁宁，左岩，等. 钢轨轧制过程典型导卫系统的有限元模拟[J].塑性工程学报，2011，18(2):52-56.

Yuan S Y，Ding N，Zuo Y，et al.Study on the typical guide system of rail rolling process with FEM[J].Journal of Plasticity Engineering，2011，18(2)：52-56.

[12]周剑华.高速铁路重轨尺寸精度、平直度及残余应力控制的研究[D]沈阳：东北大学，2008.

Zhou J H.Sduty on Controlling of Dimensional Accuracy and Flatness and Residual Stress of Rail for High Speed Railway[D].Shenyang：Northeastern University，2008.

[13]郭煜敬.钢轨万能轧制孔型及轧制参数优化关键技术研究[D].重庆：重庆大学，2009.

Guo Y J.The Key Technology of Rolling Parameters Optimization During Universal Rolling Pass of [D].Chongqing：Chongqing University，2009.

Service：

【This site has not yet opened Download Service】【Add Favorite】