Каталог Iscar дисковые фрезы и фрезерные пластины 2022 - страница 230

MILLING INSERTS USER GUIDE GRADES for APPLICATIONS and MATERIALS ISO P ISO M ISO K ISO N ISO S ISO H 1 - 11 12 - 13 14 15 - 20 21 - 28 31 - 37 38 - 41 Material groups Steel StainlessSteel Ferritic& MartensiticStainless SteelAustenitic & Duplex(Ferritic-Austenitic)Cast IronNonferrousHigh Temp.AlloysHard Steel& HardenedCast Iron Harder IC5400 IC808 (908) IC808 (908) IS8 ID5 IC808 (908) IB55 IC30N IC840 IB85 IC808(908) IC5500 IC840 IC5100(4100) IC380 IC30N MILLINGIndexable IC810(910)* IC830 (928) DT7150 IC04 IC5820** IC808 (908)IC830(928)IC830 (928)IC330 (328)IC810(910)IC08IC882DT7150 IC845 IC330 (328) IC882 IC28 IC330 (328) Coolant Tougher N N Y N Y Y N First choice * for steel castings ** for milling with high pressure coolant (HPC) supply Milling Calculations N fz Vc [m/min] Cutting speed D [mm] Tool diameter κ Nn N [rev/min] Spindle speed ap b Vf [mm/min] Feed speed Vf hmVf fz [mm/tooth] Feed per tooth D fz Calculations Z Number of teeth Cutting 4 Vc = π ∙ D ∙ N 1000min [m/min] fN [mm/rev] Feed per revolutionQ[cm3/ min]Metal removal rate Spindle speed N = Vc ∙ 1000 π ∙ D [rev/min] ap [mm] Depth of cutb[mm]Width of cut Feed speed Vf = fz ∙ Z ∙ N [mm/min] Th [min] Machining timeLw[mm]Machining length Feed per tooth fz = VnN∙Z [mm/tooth] Kc [N/mm2] Specific cutting forceKc1(1)[N/mm2]Specific cutting force for 1 mm2 chip section Feed per revolution fN = fz ∙ Z [mm/rev] hm [mm] Average chip thickness Metal removal rate Q = ap ∙ b ∙ Vf 1000 [cm3/min] mc(1) Chip thickness factork[degrees]Cutting edge angle P [kW] Machining power Machining time Th = LwVf [min] h Machine efficiencyP=Pc + Pm Specific cuttingforce Kc = Kc1 ∙ hm-mc [N/mm2] P - Total Machining PowerPc-Net Power=Cutting Power Average chip Pm - Motor Power (while not cutting) thickness inshoulder milling hm ≈ fz ∙ √ bD [mm] (1) See page 726Values for Motor Power Pm for b/D≤0.1 Max. Machine Power [kW] Motor Power Pm [kW] Average chip 5.5 0.4 thickness inshoulder milling hm = (sink ∙ 180 ∙ b π ∙ D ∙ arcsin ∙ fz) (b / D) [mm] 7.511.0 0.4-0.61.0 for b/D>0.1 15.0 1.5 18.0 2.2 Machining power P = ( ap ∙ b ∙ Vf ∙ kc )6 ∙ 107 ∙ h[kW] 22.0 2.5 Motor Power Pm has a value of approximately 7 to 12% of Maximum Machine Power 546 ISCAR