超声波加工是一种非传统的机械材料去除工艺，适用于导电和非导电材料，尤其适用于陶瓷、石墨、玻璃和碳化物等脆性材料的加工。一种非研磨型工具，称为SONOTRODE，连接在传感器/助推器组合上，以每秒约20000个周期的频率振动。当超声波电极振动流经加工间隙的细磨粒，并将其推到工件材料上钻孔、开槽和不规则形状时，就会发生加工动作。超声波加工工艺提供了许多重要的优点:材料硬度相对不重要，工件表面没有化学或电气变化，复杂的三维轮廓可以在简单的机器上快速制造

ULTRASONIC MACHINING IS A NONTRADITIONAL MECHANICAL MATERIAL REMOVAL PROCESS APPLICABLE TO BOTH CONDUCTIVE AND NONCONDUCTIVE MATERIALS AND PARTICULARLY SUITED TO THE MACHINING OF BRITTLE MATERIALS SUCH AS CERAMICS, GRAPHITE, GLASS, AND CARBIDE. A NONABRASIVE FORM TOOL, CALLED A SONOTRODE, ATTACHED TO A TRANSDUCER/BOOSTER COMBINATION VIBRATES AT FREQUENCIES OF APPROXIMATELY 20,000 CYCLES PER SECOND. A MACHINING ACTION OCCURS AS THE SONOTRODE VIBRATES THE FINE ABRASIVE PARTICLES FLOWING THROUGHOUT THE MACHINING GAP AND PROPELS THEM AGAINST THE WORKPIECE MATERIAL FOR DRILLING HOLES, SLOTS, AND IRREGULAR CONFIGURATIONS. THE ULTRASONIC MACHINING PROCESS OFFERS A NUMBER OF IMPORTANT ADVANTAGES: MATERIAL HARDNESS IS RELATIVELY UNIMPORTANT, THERE ARE NO CHEMICAL OR ELECTRICAL ALTERATIONS ON THE WORKPIECE SURFACE, AND COMPLEX THREE-DIMENSIONAL CONTOURS CAN BE MANUFACTURED AS QUICKLY AS SIMPLE ON