基于正交试验的铣削参数对表面粗糙度影响研究∗

摘要

The Cutting parameters is a important influence factors of parts machined surface roughness, To analyze the influ-ence of cutting parameters on surface roughness, milling test is arranged by orthogonal test, the influence rule of four factors of milling speed, milling depth, milling width on surface roughness is analyzed. The results show that: the influence of feed rate, milling speed, milling depth is significant on surface roughness, The descending impact order of various factors on ma-chined surface roughness is :the feed rate> milling speed>milling depth>milling width. The empirical formula of surface roughness is obtained by multiple linear regression analysis,which provide a theoretical basis for optimization of cutting param-eters and surface roughness prediction.%切削参数是影响零件加工表面粗糙度的重要因素，为了分析切削参数对表面粗糙度的影响，利用正交试验安排铣削试验，分析铣削速度、铣削深度、铣削宽度和进给量4个因素对表面粗糙度的影响规律。试验结果表明，进给量、铣削速度、铣削深度对表面粗糙度影响显著，各因素对加工表面粗糙度的影响从大到小依次为进给量﹥铣削速度﹥铣削深度﹥铣削宽度；通过多元线性回归分析得出表面粗糙度的经验公式，为切削参数优化和表面粗糙度预测提供理论依据。