Skip to main content

Table 7 Pooled ANOVA-Surface roughness

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 squares

F value

Prob > F

Model

8.68

6

1.45

75.02*

<  0.0001 significant

A

1.78

1

1.78

92.39*

<  0.0001

B

1.34

1

1.34

69.66*

<  0.0001

C

3.23

1

3.23

167.66*

<  0.0001

D

0.71

1

0.71

36.60*

<  0.0001

B2

1.23

1

1.23

63.65*

<  0.0001

CD

0.39

1

0.39

20.17*

0.0002

Residual

0.44

23

0.019

2.27

0.1851 not significant

Lack of Fit

0.40

18

0.022

Pure Error

0.048

5

9.661E-003

Cor Total

9.13

29

  1. * Significant at 95% confidence interval
Back to article page