Transactions of Materials and Heat Treatment

Title：Optimization design on precision rolling blank for conical ring with outer step

Authors： He Song Hua Lin Lan Jian Qian Dongsheng

Unit： Wuhan University of Technology

KeyWords： conical ring with outer step ring rolling design of ring blank FE simulation dimension error precision rolling

ClassificationCode：TG33

year,vol(issue):pagenumber：2017,42(8):54-61

Abstract：

The conical rings with outer step is widely used in oil and gas pipeline valves, bearings and aircraft engine casings. Since it is difficult to obtain the required diameter size and step shape simultaneously, two kinds of ring blanks with equal wall thickness and variable wall thickness were designed. Then, their rolling process was simulated by the ABAQUS, and the step filling law and the dimension errors of the rolled ring were analyzed. The results show that the dimension precision of rolled ring with variable wall thicknesses ring blank is higher than that of rolled ring with equal wall thickness ring. Therefore, the size correction coefficient η is added to obtain the optimal dimension precision based on the variable thickness design. Finally, by comparing the dimensional precision of rolled ring under different correction coefficients η, the optimal correction coefficient is within 1<η<1.1. According to simulation result, related rolling experiments were carried out in WD51Y-250 ring rolling mill to verify the reliability of FE simulation and the feasibility of the design method of blank with variable wall thicknesses.

Funds：

江苏省重点研发专项（BE2016009）；JGXM（201607GC01）

何松（1990-），男，硕士研究生华林（1962-），男，博士，教授

Reference：

［1］华林，黄兴高，朱春东.环件轧制理论和技术[M].北京：机械工业出版社，2001.Hua L，Huang X G，Zhu C D. Ring Rolling Theory and Technology[M].Beijing: China Machine Press，2001.
［2］韩星会, 华林, 兰箭,等. 内台阶锥形环件轧制三维有限元模拟和工艺优化设计[J]. 中国机械工程, 2007, 18(16):1979-1983.Han X H, Hua L, Lan J, et al. 3D FEM simulation and optimization design of rolling process of conical ring with inner steps [J]. China Mechanical Engineering，2007, 18(16):1979-1983.
［3］Qian D S, Hua L. Blank design optimization for T-section ring rolling [J]. Ironmak & Steelmak，2009，36(6):462-469.
［4］Deng J, Mao H. A blank optimization design method for three-roll cross rolling of complex-groove and small-hole ring[J]. International Journal of Mechanical Sciences, 2015, 93:218-228.
［5］Park M, Lee C, Lee J. Development of L-sectioned ring for construction machines by profile ring rolling process[J]. International Journal of Precision Engineering and Manufacturing, 2016, 17(2):233-240.
［6］陈孝庆，郭良刚，杨合，等. TC4钛合金锥形环辗轧坯料仿真优化设计[J].塑性工程学报，2014，21(2): 25-31.Chen X Q, Guo L G，Yang H, et al. Study on blank optimization design of conical ring rolling process for TC4 titanium ally by numerical simulation[J]. Journal of Plasticity Engineering，2014，21(2): 25-31.
［7］龚小涛, 杨帆, 郭红星. 复杂异形环件毛坯优化设计方法研究[J]. 锻压技术, 2012, 37(2):75-78.Gong X T，Yang F，Guo H X.Study on optimization design method of complex shaped ring blank [J].Forging & Stamping Technology，2012，37 (2):75-78.
［8］韩双, 钱东升. 铝合金锥面筒形环件轧制成形数值模拟与实验研究[J]. 锻压技术, 2016, 41(9):64-70.Han S，Qian D S. Numerical simulation and experimental study on aluminum alloy tapered cylindrical ring in roll forming [J]. Forging & Stamping Technology, 2016, 41(9):64-70.
［9］Guo L, Yang H, Zhan M. Research on plastic deformation behaviour in cold ring rolling by FEM numerical simulation [J]. Modeling & Simulation in Materials Science & Engineering, 2005, 13(7):1029-1046.
［10］Wang M, Li X, Du F, et al. Hot deformation of austenite and prediction of microstructure evolution of cross-wedge rolling [J]. Materials Science & Engineering A, 2004, 379(1-2):133-140.

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