Study on Grinding Surface Topography of Strong Magnetic Sintered Ceramic CBN Grinding Wheels
Addressing the issue that existing grinding surface topography models are unable to accurately characterize the specific grain orientation of strong magnetic sintered ceramic CBN grinding wheels,a novel numerical model of virtual grinding wheel and grinding surface topography is proposed. Firstly,a grain model is selected with a specific orientation of its long axis. The grinding wheel model with random grain positions is established by giving random displacements to the array placed grains. Secondly,the grains and the workpiece surface are numerically discretized to establish a numerical model of grinding surface topog-raphy. Finally,through simulation and grinding experiments,the comprehensive influence of different pro-cessing parameters on the grinding surface topography of strong magnetic sintered ceramic CBN grinding wheels is revealed. The validity of the model is verified,providing a theoretical basis for subsequent re-search on the grinding mechanism of strong magnetic sintered ceramic CBN grinding wheels.
strong magnetic sinteredsurface topographyvirtual grinding wheelgrinding mechanism
万方数据
维普
