Wear characteristics and grinding performance of vitrified diamond grinding wheels

– Fundamental analysis of the wear behavior of grain cutting edges based on cluster overcut fly grinding tests –

Abstract

To clarify the wear characteristics of vitrified diamond grinding wheels, the wear behavior of grain cutting edges on the wheel surface was analyzed experimentally based on cluster overcut fly grinding tests using diamond abrasive grains of some different grades. The wear of diamond wheels decreased with increases in strength of the diamond abrasive grain. However, as the strength of the diamond grain increased, the grain cutting edges on the wheel surface became dull more easily because the self-sharpening due to microfractures of cutting edges does not occur easily. Average sectional area of the grain cutting edge measured from the three-dimensional profile of the wheel surface can be used to identify the differences in wear mode of the cutting edge due to the strength of the diamond grain.