Skip to main content

Table 6 Sequential Model Sum of Squares- Tool life

From: Impact of nose radius and machining parameters on surface roughness, tool wear and tool life during turning of AA7075/SiC composites for green manufacturing

Source Sum of Squares DF Mean Square F Value Prob > F  
Mean 304.01 1 304.01    
Linear 44.77 4 11.19 11.95 <  0.0001  
2FI 5.60 6 0.93 1.00 0.4557  
Quadratic 12.72 4 3.18 9.39 0.0005 Suggested
Cubic 2.65 8 0.33 0.96 0.5306 Aliased
Residual 2.43 7 0.35    
Total 372.19 30 12.41