Abstract

Aiming to improve the quality of part surfaces in cold roll-beating, the movement of the roller during the process was analysed. The relationships between the relative positions of the roller and the workpiece were determined. A finite element model was established for cold roll-beating simulation, which was based on the thermal effects under different roller speeds. Based on the simulation results, the change in equivalent stress resulting from the thermal–mechanical mechanism was analysed, and its influence on work hardening was determined. The theoretical basis for the control of the influence of coupled thermal–mechanical mechanism on work hardening was derived to ensure high-quality part surfaces during cold roll-beating.

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