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Force, Torque, and Power

 

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
 
 

Z axis Mill Nomenclature

in mm
 

Machining Conditions

sfm m/min
in mm
in. IPT (chip load) mm
   
Machinability factors
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&#44 High-temperature alloys 2.0 2.15 2.3
   
Machine Tool Efficiency factors
Direct Belt Drive .9
Back Gear Drive .75
Geared Head Drive .7-.8
Oil - Hydraulic Drive .6-.7
Calculate
 

CalculatedMachiningConditions.heading.label

RPM
IPM (no productivity formula) mm/min (no productivity formula)
MRR cm3/min
in.2 mm2
 

Calculated Required 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.

 

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