Research Article

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

Table 11

Regression model and summary results for torque.

ModelTorque = 0.224 + 0.00025 speed + 0.53 doc + 0.000001 speed  speed − 0.47 doc  doc − 0.00078 speed  doc

Summary resultsS valueR2 value
0.09042530.8427