ダイヤモンド砥粒先端エッジの評価に関する基礎的研究 : 切削におけるガラスクラックへの切れ刃形状依存性

概要

論文の詳細を見る
In order to evaluate the grinding stone performance, it is necessary to consider the influence of cutting edge shape and frank face area for a grain. For example, the crack depth for cutting glass materials will be affected by these characteristics in small depth of cut. Though the cutting edge shape is formed by crossing of the rake face and the frank face for a grain, this line is often complicated. Then, complication of edge shape was expressed quantitatively by the fractal dimension in previous study. In this study, the fractal dimension of diamond grain edge and the frank face size of grain tip were discussed how to influence the crack depth of glass. The fractal dimension of diamond grain edges ranged from 1.04 to 1.38. This means that the edge shape of the individual diamond differ largely on complication. From results of scratch test using single diamond grains, positive correlation appeared between the ratio of fractal dimension and frank face size for a grain edge and the crack depth of glass. That is, when edge shape becomes more simple and frank face size becomes larger, the crack depth of glass increases in small depth of cut.
公益社団法人精密工学会の論文
2005-05-05