B11 TiB_2粒子を含む高剛性鋼の切削特性に関する研究(OS-6 切削加工(2))

概要

論文の詳細を見る
TiB_2-reinforced high modulus steel is expected to be weight saving of engine parts with important rigidity because this workpiece have high young's modulus and tensile strength. But existing coated carbide tool life has been shorted in machining of this workpiece because it was bad machinability. Then, the purpose of this paper is investigation which efficiency machining of TiB_2 reinforced high modulus steel using cBN tools (binder-less cBN, high content type cBN). As a result of tool wear test, it was found that the tool wear was much affected by cutting speed condition and cutting tool with and without negative land angle. Moreover, tool wear was inhibited by build up edge in tool wear test of low cutting speed. But high content type cBN toll life was shorted by delamination wear compared with binder-less cBN.
2008-11-21