Physical simulation of the deflection in turning of thin disk-shaped workpieces

The machining of a thin disk-shaped workpiece is a problem commonly encountered in the aeronautics industry. Generally, the successful machining of a thin disk requires reinforcement by plaster. This reduces the productivity and increases the production cost. It is recognized that the suitable control of the cutting force to limit the maximum deflection of the disk within a certain value for each loading allows the machining to be successfully carried out without any plaster reinforcement. Modelling and computer-simulation of the deflection of a thin disk-shaped workpiece during turning are thus developed. The results of the simulation are discussed.