Rotary Ultrasonic Drilling And Milling Of Ceramics

An experimental study of the rotary ultrasonic drilling of ceramics is first presented. The influence of different process parameters on the material removal rate for machining of magnesia stabilized zirconia is examined. Then a mechanistic approach to modeling the material removal rate during rotary ultrasonic drilling of ceramics is proposed and applied to predicting the material removal rate for the case of magnesia stabilized zirconia. Finally, a new method to extend rotary ultrasonic drilling process to face milling of ceramics is proposed. The development of the experimental setup is described and preliminary experimental results are presented and discussed. INTRODUCTION Possessing many superior properties, such as high strength at elevated temperatures, resistance to chemical degradation, wear resistance, and low density, advanced ceramics have been expected to find more and more applications in the near future. One of the reasons for hindering market expansion of ceramic materi..