Optimization Of Machining Parameters For Ultrasonic Assisted Vibration-Grinding (Uavg) Of Ultra-Low Expansion (Ule) Optical Glass Using Taguchi Method

Glass materials possess properties that are highly needed in various areas of today's and future innovation applications. In this study, we concentrated on optimization of Ultrasonic Assisted Vibration Grinding parameters for Ultra-Low Expansion (ULE) optical glass using the Taguchi method. This material is of interest as it finds its applications in the space industry such as Hubble telescope. A hybrid process of grinding; Ultrasonic Assisted Vibration Grinding (UAVG) has been used in this work, an alternative to solving the current problems with machining glass materials. We investigated the effects of control parameters; Feedrate, Depth of cut, Spindle speed, and Diamond grit size, on response variables; surface roughness and cutting force. Using Signal to Noise ratios (S/N) and Analysis of Variance (ANOVA), the machining parameters were optimized revealing that for Surface roughness had was more influenced by the spindle speed while diamond grit size influenced the cutting force.