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Fundamentals of Machining Processes, 2nd Edition
book

Fundamentals of Machining Processes, 2nd Edition

by Hassan Abdel-Gawad El-Hofy
August 2013
Beginner to intermediate content levelBeginner to intermediate
562 pages
16h 1m
English
CRC Press
Content preview from Fundamentals of Machining Processes, 2nd Edition
174 Fundamentals of Machining Processes
cosφ
c
=−1
2
t
d
The time of contact between the workpiece material and the cutting tooth, t
ϕ
,
becomes
t
N
φ
=
×
φ
c
360
1
t
td
N
φ
=
cos( )
1
12
360
/
The maximum chip thickness, h
e
, can be calculated. Because
sin φ
c
e
z
=
h
S
hS
f
NZ
ez c
c
c
==si
ns
in
φφ
It follows that
sin φ
c
=−
11
2
2
t
d
or
sin φ
c
= 2
t
d
Therefore, h
e
becomes
h
f
NZ
t
d
e
c
=
2
6.3.1.4 Forces and Power in Milling
The maximum tangential force on a single tooth, F
e
, is
Fkbh
eswe
N/tooth= ()
Fkb
f
NZ
t
d
esw
c
N/tooth=
2
()
The mean tangential cutting force, F
m
, becomes
Fkbh
mswm
N/tooth= ()
where h
m
is mean chip thickness
Fkb
f
NZ
t
d
msw
c
N/tooth=
()
175Cutting Flat Surfaces
The number of ...
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Publisher Resources

ISBN: 9781466577022