| 摘要 |
<p>A rotary dresser (10) is provided with a roll (11) having an outer circumferential surface which includes an arc portion (11c, 211c) or inclined portion (111a, 111b) differing in diameter in dependence on the axial position thereof, and a plurality of diamond abrasive grains (12) embedded on the outer circumferential surface of the roll (11). The number of the diamond abrasive grains (12) in the circumferential direction is fixed even at any axial position on the outer circumferential surface of the roll (11).</p> |
