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基于微铣削刀具轨迹建立了考虑刀具偏心、最小切削厚度的塑性材料微铣削底面粗糙度的预测模型,预测结果表明粗糙度表面形貌呈锯齿状,刀具偏心会影响表面粗糙度的形貌周期和高度,并进行微铣削加工实验,对粗糙度预测模型进行了验证。采用回归统计方法,建立了脆性材料微铣削加工表面粗糙度预测模型,对加工表面形貌进行观察,利用响应曲面法得到了各铣削用量对表面粗糙度的影响规律。
Based on the micro-milling tool trajectory, the prediction model of the micro-milling bottom surface roughness considering the tool eccentricity and the minimum cutting thickness is established. The prediction results show that the roughness surface morphology is jagged, and the tool eccentricity affects the topography roughness and Height, and micro-milling experiments, the roughness prediction model was verified. Using regression statistical method, the prediction model of the micro-milling surface roughness of brittle material was set up. The surface morphology was observed. The influence of each milling amount on the surface roughness was obtained by the response surface method.