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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, 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
 

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
 

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