深穴加工における穴の曲がりに関する研究 : 切削条件, 工具剛性, 工具形状および工具摩耗の影響

概要

論文の詳細を見る
The influence of cutting conditions (cutting speed and feed), shank rigidity, shape of cutting edge and tool wear on axial hole deviation was examined in the special machining device using 16 kinds of gun drills of 4 different shapes, each in 4 different lengths. As a result, the following are clarified. The axial hole deviation increases with the increase in shank rigidity. It decreases reversely with the increase in cutting speed. It becomes minimal at a feed of 0.06 mm/rev. It increases with the increase in self-piloting of the tool if the tool inclines at the beginning of drilling. The axial hole deviation of the worn tool is almost the same as that of a new tool as long as the wear is not severe.
社団法人日本機械学会の論文
1992-02-25