Cutting Forces, Torque, and Horsepower

For Kennametal Turning Application


! These calculations are based upon theoretical values and are only intended for planning purposes; not precise projections of cutting forces. Actual results will vary. No responsibility from Kennametal is assumed.

Conversion of Workpiece Material Rockwell (Optional)

Hardness HRB OR HRC into Brinell Hardness (HB)

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

Workpiece

D     Diameter:     in
HB     Brinell Hardness:     
p     Power constant:     hp/ln.3/min      click

Machining Conditions

ap     Depth of cut:     in
L     Length of cut:     in
  fn       Feed rate:     ipr
Vc     Cutting speed:     sfm
E     Machine tool efficiency factor:         

    

Calculated Machining Conditions

n     Spindle speed:     rpm
Q     Metal removal rate:     ln.3/min
tc     Cutting time:     min     sec

Cutting Forces Calculation

Ft     Tangential force:     lb
Ff     Feed force:     lb
Fr     Radial force:     lb
R     Resultant force:     lb

Horsepower Calculation