Statistical Modelling to Study the Implications of Coated Tools for Machining AA 2014 Using Grey Taguchi-Based Response Surface Methodology

Table 21

Regression model and summary results for GRG.

Model	GRG = 1.112 − 0.000889 Speed − 0.100 Tool − 0.00 Speed  speed + 0.0029 Tool  tool + 0.000061 Speed  Tool
Summary results	S value	R^2 value
	0.0644990	0.9440