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Simulation and experimental research on subsurface damage of silicon nitride grinding
【文件类型】 【消费金额】2.1 【文章页数】7 【会员操作】  
【文章作者】Wan, Linlin;Liu, Zhijian;Deng, Zhaohui;Li, Le;Liu, Wei
【文章摘要】      A finite element model of silicon nitride grinding was created based on virtual abrasives with a truncated polyhedral shape, to simulate the subsurface damage depth. Due to the influence of materials on light reflection, a new method to detect the subsurface damage depth was presented based on the light intensity. A series of orthogonal experiments were accomplished by using a MGK7120 x 6/F NC surface grinder. The influence of the grinding parameters, such as the wheel speed, workpiece speed and grinding depth, were analysed for their effects on the subsurface damage depth. A prediction model of the subsurface damage depth was built by conducting a regression analysis of the experimental data. The results indicated that the average error between the model prediction and experimental testing was approximately 9%, which validated the predication accuracy and the generalization ability of the prediction model.
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【卷】44【ISSUE】7【ISSUEID】815C0073    【文章期份】2018    【发布日期】2018/8/28 16:25:13    点击率:0    打印    关闭
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