| 摘要 |
PROBLEM TO BE SOLVED: To easily form micro unevenness with the difference of elevation of 10μm or less at a low cost by securing machining accuracy while eliminating the degradation of accuracy caused by changing the grip of a workpiece. SOLUTION: In forming micro unevenness d1 with the difference of elevation of 10μm or less on the outer peripheral surface WS of the workpiece W, a cutting tool 3 and a super-finishing grinding wheel 4 are held by the same tool holding part 10, and after machining for forming a micro recessed part is carried out by relative movement while cutting into the outer peripheral surface WS of the rotating workpiece W with the cutting tool 3, the tool holding part 10 is slided to move the relative position to the workpiece W while maintaining the held state of the workpiece W, and super-finishing grinding wheel 4 is moved into the same position as the position where the cutting tool 3 was machining, and relatively moved while cutting into the outer peripheral surface WS of the workpiece W to carry out finishing, thus forming the micro unevenness d1 with the difference of elevation of 10μm or less.
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