Die and Mould - Kennametal - #129

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Text version of the page
[cZX. Recommended Feed Rates for Ball Nose and Radiused Mills
Factory standard, helix angle 0°, 20°, 30°
rel. width of cut ae
.c -t-»
o o
-t-» l_ <D Q.
■D
q. -t-»
.
0
■D O)
'■4-» -t-»
o
si
Code
Sort
a e rel . m ax
a e hard
F4....
KC63.M
0,2x d eff
0,05xdeff
K600
F2....
KC63.M
1,0x d ef
0,05xdeff
K600
a p m ax . hard : 0,02 x deff
Determining the effective cutting diameter "deff" and calculating the effective speed "neff":
di * vc deff * vc eff
Application example
Profile milling
Material............................................: 1.2379 (X155CrVMo121)
Tensile strength................................: 1000 N/mm2
Milling tool........................................: F2AL1000AWL20
Milling diametereff............................: 8 mm, long cutting edge
Carbide grade..................................: KC635M
Number of edges z..........................: 2 cutting edges
Cutting speed vc..............................: 180 m/min
Cutting depth ap..............................: 5 mm
Width of cut ae ................................: 0,4 mm
Result: Feed per tooth fz Feed rate Vf Speed n
Profile milling : 0,08 mm 1147 mm/min 7166 min-1
Tool axis
vc x 1000 =-[min-1]
20(=d1) x n
vc x 1000
d -, = 0 10_
[min-1]
neff:
16(=deff) x n
Attention: When face milling over centre, only two cutting edges are in contact in the centre, reduce the feed rate!
deff= 0 8
125

pageCatalog pdf di En 2012-02-06-12