Analysis of railway wheel rolling process based on three-dimensional simulation

Rolling is one of the key stages of railway wheel hot forming process. In this work, a three-dimensional finite element analysis on wheel vertical rolling process based on some strategies proposed has been carried out by using FE code SuperForm. In modeling, a virtual mandrel is exploited in the hub hole to keep the wheel central instead of the guide rolls and centering rolls. Some features of the wheel forming are deeply investigated such as the rim diameter expanding, the rim lateral spreading, the metal flow in the circumferential direction, and the stresses distribution. The results show that (1) the rim radius expanding mainly occurs in the two affected zones before and after the back roll deformation zone; (2) the rim metal has flow trend in the circumferential direction during rolling, the metal of the intersection area, between the tread and the rim external side surface has the largest relative angular displacement; and (3) the tensile stresses of the web both in radial and circumferential directions during rolling result in the web thickness decreasing by about 3 mm for the investigated wheel. The simulations results reveal the forming mechanisms of wheel rolling, laying the basis for designing and optimizing railway wheel forming process.

[1]  Keith Davey,et al.  Efficient Strategies for the Simulation of Railway Wheel Forming , 2001 .

[2]  Naksoo Kim,et al.  Ring rolling process simulation by the three dimensional finite element method , 1990 .

[3]  Xiao Li,et al.  Modeling and simulation of cold rolling process for double groove ball-section ring , 2013 .

[4]  Indrajit Basak,et al.  Three-dimensional finite element analysis of multi-stage hot forming of railway wheels , 2011 .

[5]  Moo Young Huh,et al.  Development of the profile ring rolling process for large slewing rings of alloy steels , 2007 .

[6]  Shaoqun Zeng,et al.  The key technology and realization of virtual ring rolling , 2007 .

[7]  Lin Gao,et al.  Austenite Grain Size Evolution in Railway Wheel During Multi-Stage Forging Processes , 2013 .

[8]  K. Davey,et al.  A practical method for finite element ring rolling simulation using the ALE flow formulation , 2002 .

[9]  Keith Davey,et al.  Simulation of a multi-stage railway wheel and tyre forming process , 1998 .

[10]  Lin Hua,et al.  A hybrid of theory and numerical simulation research for virtual rolling of double-groove ball rings , 2013 .

[11]  Dong-Yol Yang,et al.  Rigid-plastic finite element analysis of plane strain ring rolling , 1988 .

[12]  Q. Yong,et al.  New Type Austenite Dynamic Recrystallization of Microalloyed Forging Steels 38MnVS During Forging Process , 2013 .

[13]  Zhichao Sun,et al.  Dynamic explicit FE modeling of hot ring rolling process , 2006 .

[14]  Mohammad Reza Forouzan,et al.  Guide roll simulation in FE analysis of ring rolling , 2003 .

[15]  A. A. Bogatov,et al.  Improved wheel rolling , 2010 .

[16]  M. Wang,et al.  Analysis of coupled mechanical and thermal behaviors in hot rolling of large rings of titanium alloy using 3D dynamic explicit FEM , 2009 .

[17]  K. Davey,et al.  The practicalities of ring rolling simulation for profiled rings , 2002 .