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Table 9 Validation of Face Centered Central Composite Design

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

Ex

Response

AA7075/15wt%SiC (20-40 μm) composites

Exp value

Model value

% change

1

Surface roughness (microns)

2.91

2.84

7.6

24

Tool life (minute)

3.1

3.4

8.8

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