Three Dimensional Finite Element Simulation of Transient Heat Transfer in High Efficiency Deep Grinding

3D Finite Element simulations have been carried out to investigate transient heat transfer under high efficiency deep grinding (HEDG) conditions. The results have been compared to those obtained from 2D analytical models and experimental measurements. It has been found that the steady-state heat transfer condition can be readily obtained in HEDG after the maximum contact length is achieved and that side wall convective cooling has little effect on the grinding temperatures for thin steel plates. The temperature distribution on the workpiece across the grinding width in cylindrical grinding shows obvious slopes and film boiling of grinding fluid may occur at the trailing edge of grinding width. Good agreement has been found between the FE results and experimental observations. 3D FE simulation and 2D analytical modelling predict quite similar values for the maximum temperatures on the finished surface of the workpiece.