No Items in Cart
Sign In
Loading Profile
English
COVID-19: How Kennametal is responding

Force, Torque, and Power

For End Milling Application

 

Conversion of Workpiece Material Rockwell (Optional)

Skip this step if you already know the Brinell hardness number(HB)
 

Characteristics of Workpiece Materials

HB
PSI N/mm 2
 

End Mill Nomenclature

in. mm
 

Machining Conditions

sfm m/mm
in. (DOC) mm. (DOC)
in. (WOC) mm (WOC)
in. IPT (chip load) mm
   
Most Common Workpiece Materials Cm at W/D ratios:
W/D < = 0.66 0.66 < W/D < 1.0 W/D = 1.0
Aluminum alloys 1.0 1.05 1.1
Carbon and alloy steels 1.0 1.15 1.3
Cast irons 1.0 1.15 1.3
Titanium alloys 1.0 1.20 1.4
Stainless steel, High-temperature alloys 2.0 2.15 2.3
   
Milling Depth of cut Feed per tooth Cw
Category (min-max), in. (min-max), in.  
Light 0.020-0.100 0.003-0.006 1.1
Medium 0.100-0.200 0.006-0.010 1.2
Heavy duty 0.200-0.400 0.010-0.020 1.3
   
Direct Belt Drive .9
Back Gear Drive .75
Geared Head Drive .7-.8
Oil - Hydraulic Drive .6-.9
 

Calculated Machining Conditions

RPM
IPM (no productivity formula) mm/min (no productivity formula)
in. (chip load at the cut) mm/min (chip load at the cut)
IPM (with productivity formula) mm/min (with productivity formula)
MRR cm3/min
in.2 mm2

Calculated Required Power

lb N
in.-lb Nm

Machining Power

HPc kW
hp kW

These calculations are based upon theoretical values and are only intended for planning purposes. Actual results will vary. No responsibility from Kennametal is assumed.