
xxvii
List of Symbols
Symbol Denition Unit
ϑ
constant
A atomic weight
A tool feed rate mm/min
A
b
area of laser beam at focal point mm
2
a
c
tool-chip contact length mm
A
c
chip cross section (depth × width) mm
2
A
chip
area of longitudinal chip/tooth mm
2
A
cs
area of broach chip space mm
2
a
g
grinding wheel cross feed mm/min
A
g
sum of cross section area of structured grooves
in lapping
mm
2
a
m
maximum permissible ECM feed rate mm/min
A
ms
abrasive mesh size
A
o
minimum cross section of broach mm
2
A
s
area of shear plane mm
2
a
s
amplitude of supernishing oscillation mm
A
sz
area swept by a single teeth in v face milling mm
2
a
t
amplitude of tool oscillation × 2 mm
A
z
undeformed chip thick