Characterization of Ceramics Grinding Wheel Surface Topography in Creep Feed Grinding

Abstract

This paper discuss changes in the wheel working surface and the wear behavior of the grain cutting edges in creep feed grinding using ceramics (Seeded gel, SG) grinding wheel. Changes in the shapes of the grain cutting edges are observed by a scanning electron micro scope (SEM) and the quantitative evaluation of the wear behavior was carried out using wear flat percentage. Grain cutting edge behavior can be divided into two types in deference grinding conditions. The first type of grain wear behavior shows a self-sharpening phenomenon based on micro fractures generated and stable changes in the attritious wear flat. Another type of grain wear behavior shows the developing attritious wear flat areas and the sharp increasing attritious wear flat with progress of grinding process. When the first type of grain cutting edge wear occurred, stable changes in grinding force components are obtained. From these results, the wear behavior of grain cutting edges in the SG creep feed grinding process is able to be quantitatively understood by using attritious wear flat percentage. In addition, the results show the grinding characteristics are closely related to the grain cutting edges wear.