INDEXABLE MILLING RECOMMENDED CUTTING CONDITIONS y Cutting Speed (inch) Work Material Grade Breaker vc(SFM) P Mild Steel <180HB MP6120 GLA 655 ( 490 ─ 720 ) Carbon SteelAlloy Steel 180 ─ 280HB MP6120 GLA 655 ( 490 ─ 720 ) N LC15TF GL 3280 ( 655 ─ 9840 ) Si < 5% Aluminum Alloy TF15 GL 3280 ( 655 ─ 9840 ) 5% < Si <10%Si > 10% LC15TF GL 3280 ( 655 ─ 9840 ) S Titanium Alloy ─ MP9120 GLA 130 ( 100 ─ 195 ) y Feed per Tooth (inch) Feed per Tooth (IPT) Work Material Breaker ae ap Cutting Edge Diameter DC 1.250" 1.500" 2.000" ─ 3.000" 4.000",5.000" 32 mm 40 mm 50 ─ 80 mm 100,125 mm P < .197 < .007 < .008 < .008 < .008 < .25 DC < .394< .591 < .006< .005 < .007< .006 < .007< .006 < .007< .006 < .987 < .004 < .005 < .005 ─ < .197 < .007 < .008 < .008 < .008 Mild Steel < 180HB GLA < .5 DC < .394< .591 < .006< .005 < .007< .006 < .007< .006 < .007< .006 < .987 < .004 < .005 < .005 ─ < .197 < .006 < .006 < .007 < .007 < .75 DC < .394 < .005 < .005 < .006 < .006 < .591 < .004 < .004 < .005 < .005 DC (Slot) < .197< .394 < .005< .004 < .006< .005 < .007< .006 < .007< .006 < .197 < .007 < .008 < .008 < .008 L < .25 DC < .394< .591 < .006< .005 < .007< .006 < .007< .006 < .007< .006< .987< .004< .005< .005─ < .197 < .007 < .008 < .008 < .008 Carbon SteelAlloy Steel180 ─ 280HBGLA < .5 DC < .394< .591 < .006< .005 < .007< .006 < .007< .006 < .007< .006 < .987 < .004 < .005 < .005 ─ < .197 < .006 < .006 < .007 < .007 < .75 DC < .394 < .005 < .005 < .006 < .006 < .591 < .004 < .004 < .005 < .005 DC (Slot) < .197< .394 < .005< .004 < .006< .005 < .007< .006 < .007< .006 Note 1) The above cutting conditions are determined based on high work material and machine rigidity, where no vibration occurred. If vibrations occur make adjustments according to the machining conditions. Note 2) Note, vibrations may occur in the following conditions. • When using long tool overhang. • When pocket machining corner radii. • When the work has poor clamping rigidity or when the machine rigidity or work rigidity is low, vibrations can occur easily, if so, reduce the cutting conditions. L170 INDEXABLE MILLING