Abstract
In the shaping process of cross wedge rolling (CWR), metal undergoes a complex microstructural evolution, which affects the quality and mechanical properties of the product. Through secondary development of the DEFORM-3D software, we developed a rigid plastic finite element model for a CWR-processed rear axle tube, coupled with thermomechanical and microstructural aspects of workpieces. Using the developed model, we investigated the microstructural evolution of the CWR process. Also, the influence of numerous parameters, including the initial temperature of workpieces, the roll speed, the forming angle, and the spreading angle, on the grain size and the grain-size uniformity of the rolled workpieces was analyzed. The numerical simulation was verified through rolling and metallographic experiments. Good agreement was obtained between the calculated and experimental results, which demonstrated the reliability of the model constructed in this work.
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Ma, Jw., Yang, Cp., Zheng, Zh. et al. Influence of process parameters on the microstructural evolution of a rear axle tube during cross wedge rolling. Int J Miner Metall Mater 23, 1302–1314 (2016). https://doi.org/10.1007/s12613-016-1352-7
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DOI: https://doi.org/10.1007/s12613-016-1352-7