选定切削参数(切削速度、进给速度、切削深度)设计正交试验,进行CVD氮化钛涂层刀具高速铣削大理石切削力试验,利用测力仪测出各组试验的切削力信号图,分析信号图特征得出切削力值,并记录各组切削力试验结果。分析单一切削参数(切削速度、进给速度,切削深度)对切削力变化的影响规律。采用最小二乘法原理对切削力经验公式回归系数进行参数估计,并对经验公式进行相关性检验,检验结果表明显著性很高。最终通过试验结果得出:切削力随着进给速度和切削深度的增加而增大,随着切削速度的增加而减小;并且切削深度对切削力影响最大,切削速度次之,进给速度对切削力的影响最小。
The orthogonal experiments for high speed milling marble cutting force test with CVD coated toolsare designed. The effect rule of cutting force changed with single cutting parameters( cutting speed,feed speed,depth of cut) are analyzed through the experiments. The parameters cutting force coefficients of empirical formula regression are estimated using the least squares principle and the correlation of empirical formulais tested. The tested results show that significance is high. The results show that the cutting force increases with the increase of feed rate and cutting depth,and decreases with the increase of cutting speed. The depth of cut has the main influence on cutting force and followed by the cutting speed,and the feed rate is the least influence on cutting force.