サーメット工具の切れ刃損耗におけるフラクタル次元評価

抄録

Conventionally, the evaluation of wear in the cutting tools have been focused mainly on the rake and flank face, but there is little research that paid attention to the cutting edge of the tools. Therefore, by extracting its complicated features, a valid technique for evaluating this matters has not been established. That is why this research is carried out to focus on the cutting edge of the tool which involve a quantitative evaluation of its complexity due to the change of this edge line by the fractal dimension. As a result in the 3-dimensional cylindrical turning using this method, tendency that the fractal dimension of the nose corner part of the cutting edge approaches 1.08, and the fractal dimension of the straight part approaches 1.12 when the tool reaches its end life are obtained.