120 球面のボールエンドミル加工における加工誤差に関する研究(OS-1 切削加工)

概要

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Ball end mills are widely used in machining of parts with sculptured surfaces. The properties required for ball end milling are high productivity, high machining accuracy and integrity of machined surface. In this study the machining error theory is applied to the analysis of spherical surfaces. The workpiece shape is concave and convex. The work material used is plain carbon steel. Cutting tool is a cobalt enriched high-speed steel (Co-HSS) ball end mill. The machining errors are examined for various cutting conditions and cutting modes. The machining error in down cut is lager than that in up cut. It is seen that the influence of cross-feed on machining error is largest in the cutting mode of down cross-feed and down cut. The machining error in concave workpiece is lager than that in convex workpiece. But in down cross-feed., the machinging errors in both shapes are almost same.
社団法人日本機械学会の論文
2006-11-24