An Investigation of Material Removal Mechanisms in Lapping with Grain Size Transition

Abstract

The mechanical material removal (MRR) mechanisms in lapping were investigated, using concepts of two-body vs. three-body abrasion and ductile vs. brittle machining. The statistical nature of the depth of cut in the lapping process was described using distribution of abrasive sizes in the slurry. Through the change in abrasive size distribution, the time dependent characteristic of MRR was captured in the model. Experiments were conducted for model verification. It was found that a constant 60 deg effective inclusion angle allowed the model to fit measurement well. [S1087-1357(00)00504-9]