論文
ラジアスエンドミル加工における加工面創成機構の幾何的分析
―加工面形状の算出法と工具姿勢角依存性―
キーワード:
radius end mill,
surface roughness,
geometric analysis,
iterative calculation method,
optimum tool orientation
2025 年 91 巻 7 号 p. 786-790
詳細
2025 年 91 巻 7 号 p. 786-790
This study aims to geometrically analyze the generating mechanism of machined surfaces in radius end milling. In this report, to clarify the dependence of the machined surface shape on the tool axis direction, we propose an iterative calculation method to determine parameter values using approximate ruled surfaces and the internal division ratio of sections including their endpoints. By applying this method to calculate the machined surface shape for 792 combinations of tool axis direction, it was found that the maximum Rz of 21.0 μm occurred at a slant angle of 55°and a bearing angle of 270°. In contrast, the minimum Rz of 6.4 μm occurred at a slant angle of 5°and a bearing angle of 60°.
