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Journal of Optimization
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Journal of Optimization
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2015
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Article
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Tab 1
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Research Article
Minimization of Surface Roughness and Tool Vibration in CNC Milling Operation
Table 1
Chemical composition of EN-31 tool steel.
C
0.90–1.20
Mn
0.30–0.75
Si
0.10–0.35
S
0.040
P
0.40
Cr
1.00–1.60