Surface Roughness Prediction in Rotary Ultrasonic Machining of Zirconia Dental Ceramic Using RSM

Abstract

This research looks into the variables that affect dental zirconia ceramic's surface roughness after
rotary ultrasonic machining. Response surface methodology (RSM) was used in the trials, and Box-Behnken design
was used to assess how control factors affected the response. Cutting speed Vc (70, 135 and 200 m/min), feed rate
Fz (25, 50 and 75 mm/min), and ultrasonic frequency Us (20, 23.5 and 27 kHz) were the analyzed control variables.
The findings show that the primary factor influencing surface roughness is the combination of the ultrasonic
frequency and feed rate. The control variable responses were plotted on a three-dimensional surface graph. The
interaction model between the two factors was created. a surface roughness minimum of 0.144