2908 球面のボールエンドミル加工における加工精度に関する研究

概要

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Ball end mills are mainly used in machining of parts with sculptured surfaces. Such operations need high quality of the machined surface, high productivity and high machining accuracy. In this study the machining error theory is applied to the analysis of spherical surfaces. The workpiece material is used 0.45C plain carbon steel. Cutting tool is used cobalt enriched high-speed steel (Co-HSS) ball end mill. The machining error is influenced by instantaneous tool deflection. There are various cutting conditions and cutting modes, and they are identified to achieve both high productivity and high machining accuracy. The machining error of upper part of machined surface is lager than that of lower part in up cut mode. It is seen in down cut that the machining error increases as feed rate increases.
社団法人日本機械学会の論文
2003-08-05