Temperature control for thermomechanical ring rolling

Abstract

AbstractThermomechanical tangential profiled ring rolling enables the manufacture of ring shaped parts with specified geometry and hardness within a single step. Some influence over the cooling rate of the ring is achieved using supplementary cooling with compressed air. Earlier work has shown that some form of control is necessary in order to obtain an acceptable reproducibility. In this study, the possibility to control the temperature of the ring using closed loop control is shown. A model of the controlled system is implemented in order to determine PID parameters. Finally, the improvement of the process repeatability is demonstrated.