三次元CADを活用したラジアスエンドミルによる切削機構の解析と切削特性に関する研究（等高線加工におけるボールエンドミルによる結果との比較）

概要

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This paper deals with an analysis of the chip area and cutting performance of radius end milling of an inclined surface using a contour path method. At first, the modeling of a cutter, an edge, a rake surface and a workpiece with an inclined surface are carried out using 3D-CAD. Secondly, the cutting cross-sectional area is calculated by the interference of the rake surface and the uncut chip volume. The influence of the cutting method and the direction of pick feed on the behavior of the cutting cross-sectional area and the influence of the inclination angle of the machined surface on the maximum cutting cross-sectional area are shown. In addition, the cutting force and surface roughness are measured by cutting tests and a comparison of the cutting process and performance with the results of a ball end mill is examined. Finally, cutting conditions which would produce a good cutting performance are considered.