Research Article

Surface Roughness Models and Their Experimental Validation in Micro Milling of 6061-T6 Al Alloy by Response Surface Methodology

Table 5

Analysis of variance for surface roughness.

SourceSum of squaresMean square-value-tab

Regression90.3760.0417.065.35
Residual error90.05320.006
Total180.6757.06 > 5.35