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- Title
Analysis of railway wheel rolling process based on three-dimensional simulation.
- Authors
Shen, Xiaohui; Yan, Jun; An, Tao; Xu, Zhangze; Zhang, Jing
- Abstract
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.
- Subjects
RAILROAD car wheels; CHEMICAL processes; SIMULATION methods &; models; STRESS concentration; RING rolling (Metalwork); TENSILE strength
- Publication
International Journal of Advanced Manufacturing Technology, 2014, Vol 72, Issue 1-4, p179
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-014-5637-6