加工精度向上に関する研究 -同時切削刃数と同時切削刃長さの一定化による切削抵抗の変動抑制の効果-

This study describes a new method to achieve the high precision end-milling on rounded-corner. It is known that machining error is generated due to the variation of cutting force in end-milling and tool bending caused by lack of tool rigidity. Therefore, we indicate that it is possible to end-milling under the conditions of keeping Number of Simultaneously Engaged Edges and Length of Simultaneously Engaged Edges constant by controlling axial and radial depth of cut to control variation of cutting force from geometric considerations. Furthermore, we propose a method of machining with the tool of equal radius to the corner radius to maximize tool diameter under the condition of controlling variation of cutting force. Machining with the tool with high rigidity due to large diameter and the condition of controlling variation of cutting force makes the high precision end-milling on corner possible.