石英ガラスの超音波振動援用研削における研削抵抗のモデルベース推定

抄録

In this study, we propose a model-based process simulation to estimate grinding force and a parameter identification method for ultrasonic assisted grinding. The proposed grinding model consists of a macro grinding model based on a mechanistic force model and a micro grinding model the performs z-map simulation considering the movement of abrasive grains. Grinding experiments and simulations were conducted on quartz glass to verify the proposed method. In the grinding experiments, the grinding force was evaluated when the feed directions were changed between normal to the z-axis, ramp-up, and ramp-down in shoulder machining using the grinding pin. The results of the verification experiments confirmed that it was possible to quantitatively estimate the reduction in grinding force of the bottom surface of the tool due to ultrasonic oscillation.