Surface quality for rotary ultrasonic milling of quartz glass employing diamond ball end tool with tool inclination angle

Nowadays, quartz glass is widely used in many industry fields. The machined surface quality is an important issue in the ultrasonic milling of quartz glass with diamond ball end tool. This paper analyzed the movement characteristics of the engaged cutting abrasive particles and investigated the effects of spindle rotation speed, feed speed, width of cut, and depth of cut on the machined surface topography and surface roughness. Also, comparisons of machining effects with and without ultrasonic were carried out. In general, application of ultrasonic vibration needs to cooperate with other process parameters to give play to the advantages of RUM, and ultrasonic function could not necessarily improve the formed surface. Comparing with conventional milling, reasonable selection of process parameters could decrease the machined surface roughness under the premise of achieving a high materials removal rate for RUM. (C) 2017 The Authors. Published by Elsevier Ltd