Study on creep feed grinding with CBN wheels. Characteristics of wheel wear.

Abstract

This paper presents the experimental investigation on the wear characteristics of CBN wheels in creep feed grinding. The obtained results are as follows : (1) As the wheel depth of cut decreases at a constant stock removal rate, the grinding force per a grain cutting edge fts increases almost power functionally and the mechanism of wheel wear changes rapidly from the attrition type to the micro-fracture type when the fts value exceeds a critical value fts (c). (2) The volumetric wheel wear rate takes a minimum value at the critical condition.