Study of grinding mechanics by single grit grinding test

Abstract

Chip formation in grinding by a single abrasive grit can be thought of as a unit event. To understand the mechanics of grinding, chip formation by a single grit is required to be studied. Single grit grinding test has been performed on a soft ductile material (rolled aluminium) with a diamond abrasive grain (size 600 μm). The tangential and the normal forces generated during the grinding operation were measured under different grinding process parametric conditions. The sectional profiles of the grooves produced by the superabrasive grain were evaluated using a 3D Taylor Hobson surface profilometer to ascertain the effects of material pile-up or ploughing during such cutting process. It has been observed that the orientation of the grain has significant effect on the grinding forces and also on the nature of pile-up material. The specific energy evaluated during such grinding operation also depends on the orientation of the grain in action.