STUDY ON A NEW FINISHING PROCESS OF FINE CERAMICS BY MAGNETIC ABRASIVE MACHINING - ON THE IMPROVING EFFECTS OF FINISHING EFFICIENCY OBTAINED BY MIXING DIAMOND MAGNETIC ABRASIVES WITH FERROMAGNETIC PARTICLES

A new efficient magnetic abrasive finishing process has been developed in which new type magnetic abrasives are used mixing small-size diamond magnetic abrasives with such large-size ferromagnetic particles as iron particles. From the experiments, it was clarified that the machining efficiency was remarkably improved based on the increasing effects of both the finishing pressure and magnetic brush rigidity. It was also pointed out that the machining efficiency was influenced greatly by both the iron particle diameter and the mixing weight percentage of the iron particles, and there was a suitable value for the mixing weight percentage.