Abstract

The reliability of ground ceramics is affected by the subsurface cracks. Alumina was creep feed ground by utilizing a 25-1 fractional factorial design to vary the bond type, mesh size and concentration, feed rate, and depth of cut. The unit load, i.e., the normal force transmitted by each grit, was obtained from the normal grinding force and utilized to analyze the material removal mechanism and the observed roughness. The flexural strength is obtained from four point bending tests and correlated with unit load and surface finish. The study shows that creep feed grinding is best suited for alumina. Also the present study shows that fine mesh size and fast feed rate are recommended to grind alumina in order to obtain higher flexural strength.

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