
252 Fundamentals of Machining Processes
The mean chip thickness h
m
can be taken as follows:
h
v
v
t
dd
mg
w
gwg
2
11
05
λ
.
8.4.2 Forces, Power, and Removal Rate
The effective number of grits that are cutting simultaneously Z
eg
can be
calculated as follows:
ZZ
eg g
gg
g
g
g
== =
φ
π
π
λ
φ
π
φ
λ222
sin
(( ))
φφ
gg
ggw
/