Study on Surface Roughness of Silicon Nitride Ceramic Shape Sleeve in End Surface Grinding
The influence of grinding depth,workpiece feed rate,grinding wheel speed and single transverse feed rate on the surface quality of silicon nitride ceramic shape sleeve in end surface grinding was studied by single factor test.The ultra-depth instrument was used to observe the machined surface micro-morphology,the roughness measurement instrument was further adopted to measure the grinding surface roughness,and the values of surface roughness of 0.2186 to 0.4563 μm were obtained in grinding end surface of silicon nitride ceramic shape sleeve by different grinding parameters.The results show that increasing the grinding wheel speed can effectively improve the quality of the machined surface.Increasing the grinding depth and feed speed will increase the surface roughness value of the grinding surface.The increase of single transverse feed will lead to a slight increase in the surface roughness.A prediction model for the surface roughness of the silicon nitride ceramic shape sleeve in end surface grinding is established based on the empirical formula,which provides a reference basis for the reasonable determination of its grinding parameters.
silicon nitride ceramicsshape sleeveend surface grindingsurface qualityprediction model
万方数据
维普
