ABSTRACT
Ultrasonic machining is a nontraditional process, in which abrasives contained in the slurry are driven against the work by a tool oscillating at low amplitude (25–100 microns) and high frequency (15–30 kHz). It is employed to machine hard and brittle materials (both electrically conductive and non-conductive material) having hardness usually greater than 40 HRC. The process was first developed in the 1950s and was originally used for finishing EDM surfaces. In this chapter, a detailed process and its process parameters are discussed. A brief summary of the equipments and tool configurations is presented. The materials removal model for both ductile and brittle materials are discussed in great detail. Various velocity transformers design aspects and criteria are discussed in this chapter with practical examples.
