Parameters Optimization of Rotary Ultrasonic Machining of Glass Lens for Surface Roughness Using Statistical Taguchi’s Experimental Design

An experiment was conducted to compare the effects of ultrasonic and non-ultrasonic on glass lens using rotary ultrasonic machining (RUM) technology. The primary objective of this study is to analyze the experimental results of the grinding operations using Taguchi method. Feed rate and frequency are the main process parameters to be tested in this experiment. A three-level orthogonal array table had been used to determine the signal-to-noise (S/N) ratios based on Taguchi’s design of experiments and analysis of variance (ANOVA) was performed to study the relative significance of both factors in affecting the surface roughness of glass lens. The final results showed that the process output is greatly influenced by the feed rate rather than the frequency and low feed rate without frequency is identified to be the most optimum factor settings. The data of the confirmation run are provided to verify the effectiveness of Taguchi’s approach. Key–Words: Taguchi approach, analysis of variances, parameters optimization, rotary ultrasonic machining technology, surface roughness, glass lens, SAS JMP.