• Tulke, Marc
• Lafarge, Rémi
• Brosius, Alexander
• Hütter, Sebastian
• Halle, Thorsten

Abstract

<p>Thermomechanical ring rolling is an evolution of the process where deformation and heat treatment are combined to obtain a product with both the desired geometry and hardness or microstructure in a single step. However, the high sensitivity of the process to the initial condition and to various disturbances limits its repeatability and accuracy. In this paper, the authors implement a concept for hardness control of ring rolling in virtual experiments. A concept based on soft sensors and model predictive control is implemented on a digital twin. The operation of the different models needed for this control loop are detailed and the controller itself is illustrated.</p>

Topics

• impedance spectroscopy
• microstructure
• experiment
• hardness