| 摘要 |
PROBLEM TO BE SOLVED: To provide an abrasive tool excellent in abrasive accuracy and capable of uniformly abrading without generating dimples, etc. SOLUTION: Abrasive cloths 3A, 3B, 3C, 3D, 3E having different grain sizes are concentrically stuck from a center of the tool toward the outer circumference via a buffer 2 provided for a tool frame body 1. The grain sizes of the abrasive cloths 3A, 3B, 3C, 3D, 3E juxtaposed parallelly with each other so as to become larger in order from the inner side. Annular grooves are formed on upper surfaces of the abrasive cloths arranged side by side on an abrasive surface and abrasive particles are accumulated in the grooves. COPYRIGHT: (C)2009,JPO&INPIT
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