SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS CARBIDE RECOMMENDED CUTTING CONDITIONS Work Hardened steel (45 ─55HRC) Hardened steel (55 ─ 62HRC) Material AISI H13 etc. AISI D2 etc. RE LU Revolution Table feed Depth of cut Revolution Table feed Depth of cut (inch) (inch) (min-1) (mm/min) (IPM) ap (inch) (min-1) (mm/min) (IPM) ap (inch) R .0156 .1250 40000 3000 118 .0016 40000 3000 118 .0012 R .0156 .1875 32000 1700 67 .0012 32000 1700 67 .0004 R .0313 .2500 40000 5000 197 .0031 26000 3300 129 .0028 R .0313 .3750 36000 3900 153 .0024 20000 2200 86 .0012 R .0469 .3750 37000 5200 204 .0047 20000 2600 102 .0043 R .0469 .5625 37000 4800 189 .0031 20000 2200 86.6 .0030 R .0625 .5000 30000 4800 189 .0051 15000 2100 82.6 .0051 R .0625 .7500 30000 4200 165 .0039 13000 1500 59 .0024 R .0938 .7500 20000 3600 142 .0079 10000 1400 55.1 .0071 R .0938 1.1250 20000 3400 134 .0059 8400 1100 43.3 .0055 R .1250 1.0000 15000 3300 130 .0079 7500 950 37.2 .0079 R .1250 1.5000 15000 3000 118 .0059 7500 750 29.5 .0059 <0.1RE (RE <.0469) Depth of <0.2RE (RE >.0469) cut RE : Radius Note 1) If the depth of cut is smaller than this table, feed rate can be increased. Note 2) Cutting conditions may differ considerably due to the overhang, depth of cut, and machine tool conditions. Please use the above table as a start reference point. I I213