CONTROL OF MACHINING INDUCED EDGE CHIPPING ON GLASS CERAMICS  
Stanley J. Ng, Dung T. Le, Shelly R. Tucker, and Guangming Zhang Department of Mechanical Engineering & the Institute for Systems Research University of Maryland College Park, Maryland 20742
 

 

Abstract


Edge chipping is a phenomenon commonly observed during the machining of ceramic material. Characterization of edge chipping, both in macro and in micro scale, and correlating its formation to machining parameters form a basis for developing new and innovative technologies for controlling machining induced damage. An experimental-based study using glass ceramic material is performed. Three types of edge chipping are identified. The SEM-stereophotography method and the finite element method are used to evaluate the edge chipping effect under a set of machining conditions. Significant findings are obtained and guidelines for controlling edge chipping during machining are suggested.