PVD涂层刀具高速铣削砂岩表面粗糙度研究

Study on Surface Roughness of High Speed Milling Sandstone Using PVD Coating Tool

砂岩装饰品已逐渐走进人们的生活,提高砂岩加工表面质量已备受关注。利用正交试验,研究PVD涂层刀具高速铣削砂岩的切削速度、进给速度及切削深度对加工表面粗糙度的影响。分析了表面粗糙度随不同切削参数的变化规律:随着进给速度与切削深度的增加,表面粗糙度值变大,随着切削速度的增加,表面粗糙度值减小,当切削速度由3000r/min提高到12000r/min时,表面粗糙度值由4.98μm减小到3.64μm。建立了表面粗糙度的回归预测模型,经F检验具有较高的显著性,为实际生产加工砂岩制品提供了一定理论依据与参考价值。

Sandstone decoratious were gradually coming into people ＇s life. Thus improving the quality of sandstone processing surface was attracted much attention. The high speed milling sandstone test was carried out using orthogonal experiment. And then the influence of cutting speed, feed rate and depth of cutting on the sulface roughness was explored. Analysis of the variation of sul.face roughness ＇with different cutting parameters： the value of surface roughness becomes larger with the increasing of feed rate and cutting depth, but decreases with the increasing of cutting speed. When the cutting speed increases from 3000r/min to 12000r/min, the suurface roughness value reduces from 4.98 μL m to 3.64 μm The regression prediction model of surface roughness is established, and it has a high signifwance utilizing F-test, which provides a theoretical basis and reference value for the actual processing of sandstone products.