Tool wear behavior of alumina abrasive wheels during grinding FGH96 powder metallurgy nickel-based superalloy

Abstract

The tool wear behavior of microcrystalline alumina (MA) and brown alumina (BA) abrasive wheels were comparatively studied during grinding FGH96 powder metallurgy nickel-based superalloy. The grinding ratio, radial wear and grinding force were quantitatively analyzed. The influences of tool wear on surface morphology were discussed. The results suggest that grinding force and radial wear of MA wheel is lower than that of BA wheel. Serious tool wear occurs on both the MA and BA wheel from grinding ratio which is less than 1.8 because of the material adhesion and pores clogging. Meanwhile, several defects were found on the ground surface.