| 摘要 |
A polishing wheel including a lower polishing surface and defining a different color from a secondary portion of the polishing wheel, so as to indicate wear of the polishing surface. The polishing surface includes a plurality of main radial flutes extending from a central passage to an outer edge. A reduced profile for the main radial flutes is provided adjacent to the outer edge. A plurality of secondary radial flutes is provided extending from the outer edge, but not in communication with either the central passage or the main radial flutes. The reduced profile for the main radial flute is defined by a variable depth portion. The secondary radial flutes defined by a variable depth portion. Each of the main radial flutes and the secondary radial flutes formed by a circular saw. An indexing machine is used to move the polishing wheel during the forming process. |
