Tool Wear of Polycrystalline Cubic Boron Nitride Compact in Cutting Hardened Steel
Tool Wear of Polycrystalline Cubic Boron Nitride Compact in Cutting Hardened Steel
复制标题
多晶立方氮化硼复合片切削淬硬钢时的刀具磨损
DOI：
10.2497/jjspm.55.623
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
K. Iwamoto
中科院分区：
文献类型：
--
作者：
T. Wada;K. Iwamoto
采用不同cBN含量的多晶立方氮化硼复合片（cBN）刀具，研究了切削淬硬钢（SKD 11，60HRC）时cBN含量和切削速度对刀具寿命的影响。测试了四种类型的cBN工具（cBN含量分别为45%、55%、65%和75%）和涂覆的cBN工具（cBN含量为55%）。为了探讨cBN刀具的磨损机理，对cBN刀具磨损表面进行了SEM观察和EDS分析。主要研究结果如下：（1）从刀具寿命的角度考虑，cBN刀具的最佳cBN含量为55%。(2)涂层cBN刀具的磨损进程比未涂层cBN刀具的磨损进程稍慢。
Using polycrystalline cubic boron nitride compact (cBN) tools, which had the different cBN contents, the influences of both cBN contents and cutting speed on tool life in turning of hardened steel (SKD11, 60HRC) were investigated. Four types of cBN tools (cBN contents of 45 %, 55 %, 65 % and 75 % respectively) and a coated cBN tool (cBN contents of 55 %) were tested. In order to find out the wear mechanism of cBN tool, the SEM observation and the EDS analysis were carried out on the worn surface of cBN tool. The main results obtained are as follows: (1) The most suitable cBN contents of cBN tool was 55 % from the standpoint of tool life. (2) The wear progress of coated cBN tool was slightly slower than that of un-coated cBN tool.