高速钻削碳纤维复合材料轴向力的非线性回归分析

Nonlinear Regression Analysis of Axial Force on Carbon Fiber Composite Material during High Speed Drilling

针对高速钻削碳纤维复合材料的轴向力问题,采用φ5.0 mm的硬质合金麻花钻钻头进行了试验研究。得到转速n和进给速度vf在9 000 r/min≤n≤19 000 r/min和40 mm/min≤vf≤130mm/min范围内成立的二元非线性回归公式的2种形式Fz=Fz(vf,n)和Fz=Fz(f,n)。还给出固定其中任何1个自变量,约化出的一系列一元函数公式的曲线,并从中总结出4点唯象规律。

In this paper,some experiments were carried out by using Kentanium twist drill with φ=5.0 mm for the investigation of axial force on carbon fiber composite material during high speed drilling.Two forms of nonlinear regression formula with two variables Fz=Fz（vf,n）和Fz=Fz（f,n） were obtained which were applied when the range of the rotate speed and feeding speed vf satisfy 9 000 r/min≤n≤19 000 r/min and 40 mm/min≤vf≤130 mm/min.After fixing any one of the two variables,several formulas with one variable and their curves were obtained.Finally four phenomenological laws were obtained.