CBN仕上げホブに関する基礎研究 : 第4報, 切れ刃ホーニング形状が仕上げ面粗さおよび摩耗に及ぼす影響

概要

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The objective of this research is to develop a CBN (cubic boron nitride) hob that can finish medium-to high-hardness gears accurately and efficiently. The cutting performance of the CBN hob has been investigated by cutting tests using a fly tool. Fly tools with the chamfered cutting edges were used in previous experiments. The chamfer is effective to prevent chipping of the cutting edge. However, the chamfer has a tendency to accumulate dead metal and, as a result, the finished surface becomes rough. In this study cutting tests using fly tools with rounded cutting edges are carried out. The roughness of finished surfaces and the durability of cutting edges are compared with those obtained using the chamfered tools. A rounded tool with a radius of curvature of about 0.03 mm shows excellent cutting performance.
社団法人日本機械学会の論文
1996-08-25