Invention Grant
US09427846B2 Abrasive article 有权
磨料制品

Abrasive article
Abstract:
An abrasive article that may include a circular substrate with a plurality of segments arranged on the circumferential surface of the circular substrate. The abrasive article may also include an outlet slot defining an open space on a peripheral portion of the abrasive article between a first segment and a second segment, a center slot defining an open space in the circular substrate connected to the outlet slot, a noise absorbing hole connected to the center slot and protruding from the center slot in the rotating direction of the abrasive article, and a ratio (H+X)/CSD of at least about 0.01, where H represents a prescribed height of the noise absorbing hole, X represents a prescribed depth of the noise absorbing hole and CSD represents the diameter of the circular substrate.
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