VITRIFIED CBN ABRASIVE-GRAIN GRINDING WHEEL AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a vitrified CBN abrasive-grain grinding wheel using a vitrified binder with high fluidity enough to improve CBN abrasive grain holding power.;SOLUTION: In the vitrified CBN abrasive-grain grinding wheel containing CBN abrasive grains bound by the vitrified binder, the chemical composition of the vitrified binder is 58-65 wt% SiO₂, 10-15 wt% Al₂O₃, 15-20 wt% B₂O₃, 2-4 wt% R¹O (R¹ is at least one kind selected out of Ca, Mg and Ba), and 6-9 wt% R²₂O (R² is at least one kind selected out of K, Na and Li).;COPYRIGHT: (C)2005,JPO&NCIPI