Cutting Forces

For Turning Application

 

Conversion of Workpiece Material Rockwell (Optional)

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

Characteristics of Workpiece Materials

in mm
HB
hp/ln.3/min. kW/cm3/min What's This?
"p" Values (hp/ln.3/min) for machining conditions.
Type of material Designation Hardness Finishing Roughing General
Carbon steel AISI 1018 141 0.70 0.66 0.62
Carbon steel AISI 1045 195 0.74 0.70 0.72
Alloy steel AISI 4140 194 0.79 0.74 0.73
Alloy steel AISI 4340 214 0.76 0.72 0.73
Alloy steel AISI 4140 258 0.85 0.77 0.79
Alloy steel AISI 4142 277 0.84 0.77 0.75
Alloy steel AISI 4340 485 1.31 1.00 1.05
Tool steel AISI H11 205 0.78 0.73 0.76
Stainless steel AISI 316L 147 0.81 0.73 0.73
Stainless steel AISI 410 243 0.81 0.71 0.74
Stainless steel AISI 17-4 PH 294 0.99 0.70 0.72
Gray cast iron SAE G3000 195 0.53 0.48 0.47
Ductile cast iron ASTM 65-45-12 165 0.58 0.55 0.51
Titanium alloy AMS Ti-6Al-4V 287 0.64 0.62 0.62
Nickel alloy Inconel 718 277 1.20 1.01 1.02
Aluminum alloy AMS 2024 139 0.31 0.29 0.30
 

Machining Conditions

in mm
in mm
ipr. mm/rev
sfm. m/min
What's This?
Direct Belt Drive .9
Back Gear Drive .75
Geared Head Drive .7-.8
Oil - Hydraulic Drive .6-.9
 

Calculated Machining Conditions

rpm 1/min
ln.3/min. cm3/min
min sec
 

Cutting Forces Calculation

lb N
lb N
lb N
lb N
 

Cutting Forces Calculation

hp KW
hp KW
ft. lbs. N-m
 

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