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Technical Formulas<br />
Cutting speed (Vc) [m/min]<br />
Material designations & dimensions<br />
ap<br />
Cutting dth [mm]<br />
ap<br />
Depth of cut [mm]<br />
d1<br />
Cutter diameter [mm]<br />
Revilutions per minute (n) [rev./min]<br />
Dw<br />
Work piece diameter [mm]<br />
fz<br />
Feed per tooth<br />
hm<br />
Medium chip thickness<br />
k<br />
Number of insert rows<br />
Feed rate (Vf) [rev./min]<br />
kc<br />
Specific cutting force [N/mm<br />
2 ]<br />
kc1.1<br />
Specific cutting force for 1mm<br />
2<br />
chip cross section<br />
l1<br />
Length of wiper facet [mm]<br />
mc<br />
Increase of specific cutting force<br />
Feed per tooth [mm]<br />
n Revoulutions of spindle [min -1 ]<br />
Pmot<br />
Power consumption [kW]<br />
Q Mechanical efficiency [%]<br />
Feed per revolution [mm]<br />
Vc<br />
Vf<br />
z<br />
Cutting speed [m/min]<br />
Feed rate [mm/min]<br />
Effective numer of edges [pcs.]<br />
Metal removal rate [cm<br />
3 /min]<br />
m Mechanical efficiency [%]<br />
Y0 Perpendicular rake angle (effective rake angle) [°]<br />
Yf Lateral rake angle (radial rake angle) [°]<br />
Yp Tool back clearance (axial rake angle) [°]<br />
Yw Rake angle of the insert [°]<br />
k Cutting edge angle [°]<br />
Power consumption [kW]<br />
s Inclination angle [°]<br />
a Clearance angle [°]<br />
a1 Clearance angle of the corner facet [°]<br />
4
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