ROTARY DISK GRINDING WHEEL

摘要

PROBLEM TO BE SOLVED: To effectively reduce wear of a side surface of a segment chip while maintaining excellent cutting performance by improving the distribution of wear-resistant particles for forming a side wear-resistant surface of the segment chip. SOLUTION: Wear of a side surface of the segment chip can be unified, and the service life and the cutting capacity of a grinding wheel can be improved without any deviation of the cooling water flow and the chip flow by regularly disposing diamond abrasive grains 21 as wear-resistant particles having the grain size substantially the same as that of the abrasive grains on a side surface of the segment chip 12 of a rotary disk grinding wheel 10 with the segment chips 12 arranged at predetermined intervals via slits 13 and 14 on an outer circumferential surface of a substrate with the diffused surface distribution ratio in a range of 2-20% of the area of the segment chip side surface.