Rotary Ultrasonic Drilling has been one of the main method formachining hard-brittle materials,Such as Silicon, Silicon carbide,Ceramic composites, Quartz, Alumina, Alumina nitride, Fiber optics,Zirconia, Glass, Sapphire^Compared with conventional ultrasonicdrilling, RUD revolutionizes the whole sector both in reducing thecost and in improving the efficiency.

There is a crucial need for the development of drillingprocesses which are capable of achieving high material removal ratewhile maintaining the surface/subsurface damage to the machinedparts at an acceptable level. Rotary Ultrasonic Drilling (RUD), ahybrid drilling process combining the material removal mechanismsof diamond grinding and ultrasonic machining, has the potential todo so.

Achievements of Rotary ultrasonic drilling:

Saving processing cost by increasing efficiency and reducingwear

Higher surface quality,Improving geometricalprecision, 

Smaller burrs are created, 

Tool life-circle is increased friction reduction between thetool and cutting chip.

Further reduce the cutting force, which is suitable in cuttingbrittle materials.