20K Ultrasonic Abrasive Assisted Machining
Ultrasonic drilling is a non-traditional, loose abrasive machining process. In this the mirror image of a shaped tool can be created in hard, brittle materials. Material removal is achieved by the direct and indirect hammering of abrasive particles against a workpiece.
In the process of Ultrasonic drilling, material is removed by micro-chipping or erosion with abrasive particles. The tool is oscillated by a piezoelectric transducer and an electric oscillator at a frequency of about 20 kHz. The tool forces the abrasive grits, in the gap between the tool and the workpiece, to impact normally on the work surface, thereby machining the work surface.
Hard materials such as stainless steel, glass, ceramics, carbide,