A new approach for determining the reliability of a cutting tool

In this paper, a reliability-dependent failure rate model is used to predic t the reliability of a cutting tool subject to flank wear. This model propo ses an algebraic relation between the failure rate and the reliability (AE model). rt involves two decay factors. One is the so-called embedded decay factor which deals with the intrinsic characteristics of cutting behaviour (involving the material properties and the geometry of cutting tool and wor kpiece), the other is the process-dependent decay factor which relates to t he cutting process. Experimental results show that the proposed model is sa tisfactory for describing the reliability of a cutting tool under flank wea r.