INDEXABLE MILLING RECOMMENDED CUTTING CONDITIONS y Depth of Cut / Feed per Tooth ( inch) Feed per Tooth fz (IPT) Cutting Width Depth of Cut DC Work Material Properties ae ap &.750"─&1.500"(&25─&40 mm) &2.000"─&3.000"(&50─&80 mm) &4.000"(&100─&160 mm) P < .197 .012 .012 .010 .197─.295 .010 .010 .008 < .5DC .295─.394 .008 .008 .006 .394─.492 .006 .006 .004 Mild Steel < 180HB .492─.591 .004 .004 .003 < .197 .008 .008 .006 Carbon Steel 180─350HB .5─.75DC .295─.394 .006 .006 .004 Alloy Steel .394─.591 .004 .004 .003 < .197 .006 .006 .006 DC (Slot) .197─.295 .004 .004 .004 .295─.394 .003 .003 .003 M < .197 .012 .010 .010 .197─.295 .010 .008 .008 < .5DC .295─.394 .008 .006 .006 .394─.492 .006 .004 .004 .492─.591 .004 .003 .003 Stainless Steel < 270HB < .197 .008 .006 .006 .5─.75DC .295─.394 .006 .004 .004 .394─.591 .004 .003 .003 < .197 .006 .006 .006 DC (Slot) .197─.295 .004 .004 .004 .295─.394 .003 .003 .003 K < .197 .012 .012 .010 .197─.295 .010 .010 .008 < .5DC .295─.394 .008 .008 .006 .394─.492 .006 .006 .004 .492─.591 .004 .004 .003 Tensile Strength Gray Cast Iron < .197 .008 .008 .006 < 350MPa .5─.75DC .197─.394 .006 .006 .004 .394─.591 .004 .004 .003 < .197 .006 .006 .006 DC (Slot) .197─.295 .004 .004 .004 .295─.394 .003 .003 .003 < .197 .010 .010 .010 .197─.295 .008 .008 .008 < .5DC .295─.394 .006 .006 .006 .394─.492 .004 .004 .004 .492─.591 .003 .003 .003 Tensile Strength Ductile Cast Iron < .197 .008 .008 .006 < 800MPa .5─.75DC .197─.394 .006 .006 .004 .394─.591 .004 .004 .003 < .197 .006 .006 .006 DC (Slot) .197─.295 .004 .004 .004 .295─.394 .003 .003 .003 S < .197 .006 .004 .004 < .25DC .197─.295 .004 .002 .002 Titanium Alloy < 350HB .295─.394 .002 ─ ─ DC (Slot) < .197 .002 .002 .002 < .25DC < .079 .004 .002 .002 Heat Resistant Alloy ─ DC (Slot) < .039 .002 .002 .002 L H < .197 .006 .006 .006 < .25DC .197─.295 .004 .004 .004 .295─.394 .003 .003 .003 Hardened Steel INDEXABLE MILLING 40─55HRC < .197 .004 .004 .004 .25─.5DC .197─.295 .003 .003 .003 .5─.75DC < .197 .003 .003 .003 DC (Slot) < .197 .003 .003 .003 Note 1) These cutting conditions are a guide to the standard shank type and the arbor type. Please make adjustments according to the machining conditions. Note 2) Vibration is liable to occur in certain cases. Please reduce the depth of cut and / or reduce cutting conditions in the following cases. • When using the long shank type and extra long shank type. • When using long tool overhang with the standard or arbor type. • When the application has poor clamping rigidity or when using a low rigidity machine. Note 3) In case of coarse and fine pitch cutters, the coarse pitch type is recommended to prevent vibration. Note 4) For heavy interrupted and unstable cutting, the H breaker is first recommendation. L118