| 摘要 |
PROBLEM TO BE SOLVED: To reduce noise when grinding while maintaining machining precision by changing the direction of arrangement of abrasive grain layers in a grinding wheel in which abrasive grains are regularly arranged in one layer by brazing on an outer peripheral face of a base metal unit. SOLUTION: This grinding wheel 1 is constituted in such a way that abrasive grains D are regularly arranged in one layer by brazing on the outer peripheral face of the base metal unit 2, an arrangement region of the abrasive grains D is divided into a plurality of parts in the circumferential direction of the grinding wheel, and the abrasive grains D are regularly arranged in different directions in adjacent arrangement regions. The abrasive grains D in the adjacent arrangement regions are regularly arranged so that the direction of arrangement becomes the reverse direction for the direction of rotation of the grinding wheel for each other. By arranging the abrasive grains in this way, the periodicity in the direction of arrangement of the abrasive grains is eliminated in each divided region, and noise of specific frequency is reduced. Moreover, by inverting the direction of arrangement of the abrasive grains D alternately, chipping and chip do not occur on a ridge line of a material to be ground.
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