| 摘要 |
PROBLEM TO BE SOLVED: To provide a processing device and a processing method capable of improving a processing efficiency for processing a workpiece having an outer peripheral surface along a circular cone.SOLUTION: A processing method for processing an outer peripheral surface 8 of a tapered roller 7 comprises: in a state that the tapered roller 7 is rotated with its outer peripheral surface 8 in contact with a grind stone 11, the grind stone 11 is vibrated in a direction parallel to a generatrix of the outer peripheral surface 8 along the outer peripheral surface 8. Furthermore, the grinding stone 11 is vibrated, while a travel speed of the grind stone 11 traveling in the vibration direction along a larger diameter outer peripheral surface side of the tapered roller 7, is set to be lower than a travel speed of the grind stone 11 traveling in the vibration direction along a smaller diameter outer peripheral surface side.SELECTED DRAWING: Figure 1 |
