Milling · Turning - Komet Group
Milling · Turning - Komet Group
Milling · Turning - Komet Group
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Calculation Information / Specific Cutting Force<br />
1<br />
Calculation Information<br />
ae = <strong>Milling</strong> width in mm<br />
ap = Cutting depth in mm<br />
b = Chip width in mm<br />
d1 = Tool diameter in mm<br />
fz = Feed/Tooth in mm<br />
n = Speed in min –1<br />
kc = Specific cutting force in N/mm²<br />
Pe = Power requirement in KW<br />
vc = Cutting speed in m/min<br />
vf = Feed rate in mm/min<br />
z = Tooth load<br />
= Working angle<br />
d1<br />
n<br />
f z<br />
v f<br />
b<br />
a p<br />
a e<br />
Feed rate:<br />
v f<br />
= f z<br />
× z × n (mm/min)<br />
Spindle speed:<br />
v<br />
n = c<br />
× 1000<br />
(min –1 )<br />
p × d<br />
Cutting speed:<br />
n × p × d1<br />
v c<br />
=<br />
1000<br />
Power requirement:<br />
a p<br />
× a e<br />
× v f<br />
× k<br />
P<br />
c<br />
e<br />
=<br />
60 × 10 6 × <br />
(m/min)<br />
(kW)<br />
Specific Cutting Force kc (N/mm²)<br />
Workpiece material<br />
Carbon steel 0,2% C<br />
0,45% C<br />
0,83% C<br />
Alloy steel<br />
Stainless steel ferritic<br />
martensitic<br />
austenitic<br />
Cast steel<br />
carbon<br />
alloy<br />
Malleable iron ferritic<br />
perlitic<br />
Grey cast iron low tensile strengh<br />
high tensile strengh alloy<br />
Spheroidal ferritic<br />
graphite cast iron perlitic<br />
Chill cast iron<br />
Brinell-hardness<br />
HB<br />
150<br />
190<br />
250<br />
up to 200<br />
200 - 250<br />
275 - 325<br />
325 - 375<br />
375 - 425<br />
425 - 475<br />
135 - 175<br />
175 - 225<br />
275 - 325<br />
375 - 425<br />
135 - 175<br />
up to 150<br />
150 - 200<br />
200 - 250<br />
250 - 300<br />
110 - 145<br />
200 - 250<br />
180<br />
250<br />
160<br />
250<br />
400<br />
Feed per tooth<br />
fz (mm)<br />
0,1 0,2<br />
0,3 0,4<br />
3200<br />
2700<br />
2450<br />
2300<br />
3550<br />
3000<br />
2750<br />
2550<br />
3900<br />
3300<br />
3000<br />
2800<br />
3550<br />
3000<br />
2750<br />
2550<br />
3900<br />
3300<br />
3000<br />
2800<br />
4300<br />
3600<br />
3300<br />
3100<br />
4600<br />
3900<br />
3600<br />
3300<br />
4850<br />
4100<br />
3750<br />
3500<br />
5000<br />
4300<br />
3900<br />
3700<br />
3100<br />
3600<br />
2350<br />
2200<br />
4150<br />
3500<br />
3200<br />
3000<br />
4700<br />
4000<br />
3650<br />
3400<br />
5300<br />
4500<br />
4100<br />
3850<br />
4150<br />
3500<br />
3200<br />
3000<br />
2850<br />
2400<br />
2200<br />
2050<br />
3150<br />
2650<br />
2400<br />
2250<br />
3400<br />
2900<br />
2650<br />
2450<br />
3700<br />
3200<br />
2900<br />
2700<br />
2000<br />
2000<br />
1400<br />
1800<br />
1500<br />
2250<br />
3500<br />
Important: See page 57 for more application details !<br />
23
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