INDEXABLE MILLING OPERATIONAL GUIDANCE Only use the inserts and parts provided by Mitsubishi Materials with this tool. Use of the correct insert clamp screws is especially important to ensure overall tool safety. Do not use damaged or worn clamp screws. Type AXD4000 AXD7000 Cutting Edge Diameter DC(inch) ø.787" ø1.000"–ø5.000" ø1.250" ø1.500" – ø5.000" Clamp Screw Number TS3SBS TS3SB TS4SB TS4SBLOverall Length L(inch).256.315.353.413L First Clamp Torque (lbf-in) 13 13 31 31 When tightening the clamp screws, follow the order in Figure 1. The maximum allowable spindle speeds are shown in Table 1.Ensure that the cutter operates under the maximum allowable spindle speed. Second The maximum allowable spindle speeds for safety purposes are determined in accordance with ISO15641 (Milling Cutters for high speed machining–Safety requirements). Figure 1 (Table 1) Maximum allowable spindle speed AXD4000 Cutting Edge Diameter DC(inch) ø.787" ø1.000" ø1.250" ø1.500" ø2.000" ø2.500" ø3.000" ø4.000" ø5.000" Max. Allowable Spindle Speed (min-1) 15000 49000 48000 41000 35000 30000 27000 23000 20000 AXD7000 Cutting Edge Diameter DC(inch) ø1.250" ø1.500" ø2.000" ø2.500" ø3.000" ø4.000" ø5.000" Max. Allowable Spindle Speed (min-1) 41000 36000 30000 25000 23000 19000 16000 Even when operating under the maximum allowable spindle speed, if the spindle speed is equal to or higher than the values shown in table 2, it is recommended that the balance quality (with the arbor or milling chuck) conforms to G6.3 or better based on ISO1940. It is also recommended to replace the clamp screws with new ones when changing inserts. Furthermore, ensure to use machines that are provided with safety measures in case of cutter breakage. * The balance quality of the holder (without inserts and clamp screws) is G6.3 or better at 10000 min-1. (Table 2) Maximum spindle speed when balancing with the arbor or milling chuck has not been achieved AXD4000 Cutting Edge Diameter DC(inch) ø.787" ø1.000" ø1.250" ø1.500" ø2.000" ø2.500" ø3.000" ø4.000" ø5.000" Max. Spindle Speed (min-1) 15000 12000 9500 7600 6000 4800 3800 3000 2400 AXD7000 Cutting Edge Diameter DC(inch) ø1.250" ø1.500" ø2.000" ø2.500" ø3.000" ø4.000" ø5.000" Max. Spindle Speed (min-1) 9500 7600 6000 4800 3800 3000 2400 When setting the spindle speed, take into consideration the maximum allowable spindle speed of the arbor or milling chuck. Use the specified set bolt when using the arbor type with through coolant. The inserts have sharp cutting edges and handling them with bare hands may cause injuries. Always wear safety gloves when handling the indexable inserts. L L174 INDEXABLE MILLING