SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS CBN RECOMMENDED CUTTING CONDITIONS Work Hardened steel (45 ─55HRC) Hardened steel (55 ─62HRC) Hardened steel (62 ─70HRC) Material AISI H13 etc. AISI D2 etc. AISI W1, AISI M2 etc. RE(mm) Revolution Table feed(min-1)(mm/min)(IPM)Depth of cutap(mm)Width of cutae(mm)Revolution(min-1)Table feed(mm/min)(IPM)Depth of cutap(mm)Width of cutae(mm)Revolution(min-1)Table feed(mm/min)(IPM)Depth of cutWidth of cutapae(mm)(mm) R0.2 50000 1500 59.1 0.006 0.01 50000 1200 47.2 0.006 0.01 50000 1200 47.2 0.004 0.008 R0.3 50000 2000 78.7 0.01 0.02 50000 1500 59.1 0.01 0.02 50000 1500 59.1 0.008 0.015 R0.4 50000 3000 118.1 0.02 0.05 50000 2000 78.7 0.02 0.04 50000 2000 78.7 0.015 0.03 R0.5 50000 3000 118.1 0.03 0.06 50000 2000 78.7 0.03 0.05 50000 2000 78.7 0.02 0.03 R0.75 50000 3500 137.8 0.04 0.08 50000 2500 98.4 0.03 0.06 50000 2500 98.4 0.02 0.04 R1 50000 4000 157.5 0.05 0.1 50000 3000 118.1 0.04 0.07 50000 3000 118.1 0.03 0.05 ae Depth of cut Note 1) If the depth of cut is smaller than this table, feed rate can be increased. Note 2) Oil mist coolant is recommended. Note 3) 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 I277