| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and method for machining fine recessed parts by which fine recessed parts can be formed on the inner peripheral face or the outer peripheral face of a workpiece with excellent accuracy, machining costs can be reduced, in addition, plastic flow and springback at a part where the fine recessed parts are formed can be reduced, and also, the service lifetime of a machining roller can be prolonged. SOLUTION: The device for machining fine recessed parts is provided with the machining roller 11 provided with fine unevenness on the outer peripheral face and rotating around a roller shaft 12, a pressing mechanism 20, which allows the outer peripheral face of the machining roller 11 to be pressed against the inner peripheral face Ba by bringing the machining roller 11 close to or by separating it from the inner peripheral face Ba of a cylinder bore B supported by the central axis in parallel with the roller shaft 12, and a laser irradiator 15 for locally softening the inner peripheral face Ba of the cylinder bore B. The machining roller 11 executes machining by revolving around the central axis while pressing the fine unevenness on its outer peripheral face against the inner peripheral face Ba of the cylinder bore B in the cylinder bore B. COPYRIGHT: (C)2006,JPO&NCIPI
|
