深穴加工における穴の曲がり : 工具形状の影響(案内部形状)

概要

論文の詳細を見る
The setup (in the rotating workpiece and stationary tool system or in the rotating tool and stationary workpiece system), misalignment of machining system, shape of the workpiece and tool geometry (single or multiedged tool) have been examined in terms of the hole deviation. In the present paper, the influence of a guide pad on hole deviation is mainly examined on chamfer angle, back taper and tool wear using BTA tools. The following points are clarified. The hole deviation decreases with an increase in the chamfer angle of the guide pad; chamfer angles vary between 12° and 45°. The hole deviation decreases less with an increase in the back taper; the back taper varies between 0 μm/mm and 8.8 μm/mm. The hole deviation increases suddenly at the hole depth between 4 m and 5 m where the wear of the margin begins to advance over the chip breaker.
一般社団法人日本機械学会の論文
1990-04-25