STUDY ON THE ROUND-OFF TRUING METHOD USING CIRCULAR MOTION - TRUING OF A SUPERABRASIVE WHEEL WITH A HOMOGENEOUS TRUING WHEEL -

摘要

The round-off truing method of a grinding wheel for precision form grinding, where the circular motion of a CNC grinding machine and an abrasive stick are utilized, was previously proposed by the authors. In a former study, the compensation method of mal-distribution of wear ratio, α, for an abrasive stick was proposed and the use of this method resulted in the improvement of truing accuracy. This method, however, can not be applied to a brake truer. In this study the authors have tried to produce a homogeneous truing wheel for a brake truer, utilizing a hydraulic pressure process, and the developed wheel was applied to the round-off-truing experiment for a bronze bonded superabrasive wheel. The superabrasive wheel was trued in target accuracy in about 20 minutes when setting angle of the brake truer, θz, was at 10 degrees.