Authors: Tao Chen Changzheng Qiu Xianli Liu
Publish Date: 2016/12/30
Volume: 91, Issue: 5-8, Pages: 2125-2133
Abstract
The 3D topography characterization method can more accurately reflect the micro structure and its state than the 2D method In this work the experiments on cylindrical turning of bearing outer rings with PCBN tools are conducted The influences of flank wear and cutting parameters on the 3D topography parameters including 3D profile kurtosis slope area parameters of support rate volume parameters of surface bearing and side flow are determined It is found that high cutting speed and flank wear generate coarse surface and the peaks and troughs on the surface are more random The kurtosis and slope of the machined surface both increase with flank wear and cutting speed More flat peaks are generated at low speed cutting and the machined surface will become steep with flank wear The area parameters of support rate and volume parameters of surface bearing decrease with the increasing of tool wear and cutting speed which will decrease the wear resistance of the surface and surface bearing capacity Side flow increases with increasing cutting speed and flank wear and irregular ridge line is found which has a negative influence on the machined surface topography
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