摘要 |
An apparatus for forming microscopic recesses on a circumferential surface that defines a cylindrical bore in a workpiece, including a tool holder rotatably about a rotation axis, a form roller support moveable in a direction perpendicular to the rotation axis of the tool holder, a form roller rotatable about a rotation axis parallel to the rotation axis of the tool holder, and control means for controlling the form roller support such that the form roller is allowed to be in press contact with the circumferential surface of the cylindrical bore at a press contact load of a predetermined value on the basis of a centrifugal force which is exerted on the form roller support and the form roller during rotation of the tool holder.
|