2618 切れ刃トランケーションを施した研削ホイールによる研削プロセスのシミュレーション(S74-2 砥粒加工(2),S74 砥粒加工)

Abstract

Cutting edge truncation is a micro-truing process in which the diamond cutting edges of grinding wheel are truncated and aligned at the same height. In this study, surface plunge grinding has been simulated to clarify the effect of cutting edge truncation on the grinding mechanism in terms of the maximum grain depth of cut and finished surface roughness. It is found that a surface roughness of nanometer order is possible to generate by the truncation of a coarse-grained grinding wheel but the contribution to a decrease in the maximum grain depth of cut is not enough, so that proper selection of a fine-grained grinding wheel as well as suitable truncation are necessary for ductile-regime grinding, which requires the maximum grain depth of cut less than a value realizing ductile-mode material removal.