机械科学与技术2017，Vol.36Issue(11)：1722-1728,7.DOI:10.13433/j.cnki.1003-8728.2017.1114
共轨管微小孔磨粒流抛光实验研究与表面粗糙度预测
Experimental Study on Abrasive Flow Polishing of Common-rail Tube Micro-holes and Surface Roughness Prediction
摘要
Abstract
Aiming to the surface finishing of common-rail tube micro-holes manufactured by electrical discharge machining,abrasive flow polishing was adopted.The effects of the processing parameters and their interaction on the surface roughness have been studied via orthogonal experiments.The prediction model for surface roughness via multiple nonlinear regression equation was established based on the second order response surface model or power function model.The results showed that the processing parameters had a significant influence on the polishing effect,but the interaction had less impact on it.The surface roughness of the tunnels has a negative correlation with the pressure,concentration and processing time,but the positive correlation with the grain size when it exceeds a critical value of 148 iμm.At grain size below critical value,it shows a positive correlation with polishing efficiency.The combinatorial optimization is obtained,and under this condition,the surface roughness value decreased from 1.31 μm to 0.2 μm.The prediction accuracy via second-order polynomial regression equation was higher than that via power function regression equation.The correlation coefficient was up to 0.990,and the prediction errors was less than 9.54％.关键词
共轨管/磨粒流抛光/表面粗糙度/回归分析Key words
common-rail tube/abrasive flow polishing/surface roughness/regression analysis分类
机械制造引用本文复制引用
蔡智杰,刘薇娜,高彬彬,任成祖..共轨管微小孔磨粒流抛光实验研究与表面粗糙度预测[J].机械科学与技术,2017,36(11):1722-1728,7.基金项目
国家自然科学基金项目(51275346)与教育部博士点基金优先资助领域项目(20122216130001)资助 （51275346）
