| 摘要 |
PROBLEM TO BE SOLVED: To apply chamfering of a continuous change in curvature to a crystal piece and to simplify management of a machining pot, machining time management, crystal piece management, machining process, and such. SOLUTION: In a chamfering method for a crystal piece wherein the crystal piece has a flat part in a center part and chamfering curvature becomes continuously smaller from the flat part toward the exterior, chamfering of the crystal piece is performed by putting the crystal piece inside a machining pot having a section surface perpendicular to a rotary shaft elliptically shaped, and rotating the machining pot. |
