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KI.
Recommended Feed Rates for Solid-Carbide End Mills
Extra long version, helix angle 30°:
rel. width of cut ae
0,140 0,120 +| 0,100 0,080 0,060
0,040
N
sz
o
-t-» l_
<D Q.
■D
fz = 0,035
0,020 0,010
0,005
0,0
dT¡~
4
6 {
8
I
10
I
1
2
14
i
16
i
Mill diameter
18 20
I i
/
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/
/
/
/
/
/
1
/
/
/
i
f
/
/
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!
/
1
/
/
/
/
fe/
1
/
/
1
/
/
i
/
/
/
/
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/
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/
/
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/
/
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/
/
/
/
/
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f
/
/ /
/
/
J
/ /
0,4 x d 0,8 x d
1,2 x d 1,6 x d 2,0 x d 2,4 x d 2,8 x d
3,2 x d 3,6 x d
4,0 x d 4,4 x d 4,8 x d
a.
.c ■(-»
.
~o
CO
'■4-»
-t-»
Ü 0
Application example
Helical end milling (finishing)
Material............................................:
Tensile strength................................:
Machining center tool........................................:
Milling diameter................................:
Carbide grade..................................:
Number of edges z..........................:
1.2379 (X155CrVMo121) 1020 N/mm2
F4AJ0800AWL50L200 KC635M 8 mm extra long cutting edge
KC635M
4 cutting edges
Cutting speed vc..............................: 110 m/min
Cutting depth ap..........................
Width of cut ae ...........................
16 mm 0,8 mm
Result: Feed per tooth fz Feed rate Vf Speed n
Slot cutting : 0,040 mm 700 mm/min 4377 min"1
Attention: In plunging (drilling) only one cutting edge over centre
is in contact, i.e. only 1 x fz should be used to calculate the feed rate vf!
119
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