Machining behaviors of glass-ceramics in multi-step high-speed grinding: Grinding parameter effects and optimization

Abstract

Currently, the lack of proper manufacturing technology that takes productivity and quality into account is still considered as the bottleneck for large-scale applications of glass-ceramic. This work proposed a multi-step high-speed grinding technology for Zerodur glass-ceramics machining. Not only the experimental investigation of the effects of feed speed and grinding depth on the machining behaviors of glass-ceramics were performed, but also the theoretical analysis of machining behaviors was conducted. The effects of grinding parameter on machining behaviors were compared as well and the results showed that the effects of feed speed were greater. Based on these experimental results and the theory of brittle-to-ductile transition, a strategy for optimizing suitable grinding parameters was proposed and the optimal process combination parameters were obtained. A comparison of various existing grinding processes and the multi-step high-speed grinding technology was given in the end and verified the unique advantages and application prospects of the technology.