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Journal of Materials Science: Materials in Engineering

Table 2 Parameters and their levels in ball nose milling

From: Application of response surface methodology for prediction and modeling of surface roughness in ball end milling of OFHC copper

Parameter

Symbol (units)

Levels

−2

−1

0

1

2

Cutting speed

Vc (m/min)

80

85

90

95

100

Cutting feed rate

fz (mm/ tooth)

0.01

0.04

0.07

0.10

0.13

Axial depth of cut

ap (mm)

0.1

0.2

0.3

0.4

0.5

Radial depth of cut

ae (mm)

0.05

0.07

0.09

0.11

0.13

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