
256 Fundamentals of Machining Processes
Calculate the mean chip thickness, force, grinding power, feed power,
VRR, and specic power consumption.
Solution
Because
v
dn
w
g
=
v
w
g
=
×
=
300 2400
0 00625
.
h
v
v
t
dd
mg
w
gwg
λ
11
05.
h
m
=× +
30 0 00625 004
1
1
05
..
.
m
F
v
tS
v
w
g
=
γ
S
t
mm/rev==
16 7.
v
= ××××0 00625 004167 5 800...
Surface roughness
Longitudinal feed v
g
FIGURE 8.32
Effect of longitudinal feed on surface roughness.