| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for allowing precise, mechanical and automatic polishing of an inner face cavity portion of a cone-shaped member without requiring skills for any materials. SOLUTION: The inner face polishing method for the cone-shaped member comprises abutting the cavity portions of two bowl members each other to form a closed space, putting abrasive grains in the closed space, and rotating the member in the axial direction of the cone-shaped member while giving axial oscillation thereto. |
