Determination of Machining Parameters Affecting Surface Roughness of MDF Using the Taguchi and RSM Methods

In this study, the influence of the machining parameters on surface roughness of MDF machined on a CNC router based on machining parameters such as feed rate, spindle speed,, depth of cut and depth of cut) was investigated with Taguchi and Response surface method (RSM) metod. Taguchi L16 orthogonal array has was used for experiments design. The significant machining parameters effect on surface roughness were analyzed with the analysis of signal to noise ratios (S/N), ANOVA, main effect graphs of means and 3 D surface plots. Mathematical prediction models of the effects of processing parameters on surface roughness were developed using response surface methodology (RSM). it was observed that the main effects of factors (depth of cut , feed rate, spindle speed) on roughness were found to be statistically significant, although interaction of factors has no effect on surface roughness. It was found that surface roughness value increased with increasing feed rate and depth of cut and decreasing spindle speed. The better surface roughness values were obtained at 25000 mm/min of feed rate, 24000 rpm of spindle speed and 4 mm of depth of cut