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This study was funded by the National Natural Science Foundation of China (grant
number:51975301), Key Fund Projects of Zhejiang Province (grant number: Z22E051187) the
Major Project of Science and Technology Innovation 2025 in Ningbo City, China (grant
number:2020Z110)，the Ningbo Beilun District Science and Technology Innovation Team
( grant number: 2020BL0003 ).
To explore the variation law of workpiece temperature in the process of three roll skew rolling (TRSR) hollow axle, the process of TRSR hollow axle is tested and simulated in this paper. Firstly, the working principle of TRSR hollow axle is described; Then the blank and rolling process parameters are selected according to the actual performance of TRSR mill; Next, the finite element model is established, and the changes of workpiece temperature are studied; Finally, the simulation results are verified by experiments. The results show that the simulation results are basically consistent with the experimental results. The temperature change of workpiece in the rolling process is very small as a whole, and the temperature drop will be greater only at the place in contact with the die.
