Основной каталог Kyocera 2021 - 2022 - страница 1070

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Basic formulas Milling Cutting speed Vc : Cutting speed [m/min] π x DC x n Vc = DC : Cutter dia. [mm] 1,000 n : Spindle revolution [min-1] DC DC Cutter Dia. (Diameter at Edge Point) Cutter Dia. (Diameter at Edge Point) Table feed & feed per tooth fz : Feed per tooth [mm/t] Vf Vf : Table feed [mm/min] fZ = Vf Zxn Z : No. of inserts n : Spindle revolution [min-1] fz Power requirement Pc : Power requirement [kW] KS x Q KS x ae x Vf x ap PHP : Power requirement (Horse power) [HP] Pc = = 6,120 x η 6,120,000 x η Ks [kgf/mm2] ae : Width of cut [mm] Low carbon steel 190 KS x ae x fZ x Z x n x ap Vf : Table feed [mm/min] Medium carbon steel 210 = 6,120,000 x η fz : Feed per tooth [mm/t] High carbon steel 240 Low alloy steel 190 Z : No. of inserts High alloy steel 245 n : Spindle revolution [min-1] 6,120 Cast iron 93 P HP = x Pc 4,500 ap : Depth of cut [mm] Malleable cast iron 120 KS : Specific cutting force [kgf/mm ] 2 Bronze, Brass 70 η : Mechanical efficiency (0.7 ~ 0.8) Q : Chip removal volume [cm3/min=cc/min] Chip removal volume R Q : Chip removal volume [cm3/min=cc/min] ae x Vf x ap ae x fZ x Z x n x ap ae : Width of cut [mm] Q= = 1,000 1,000 Vf : Table feed [mm/min] fz : Feed per tooth [mm/t] Technical information Z : No. of inserts n : Spindle revolution [min-1] ap : Depth of cut [mm] Cutting time T : Cutting time [sec] L’ : Total table transfer length [mm] 60 x L’ 60 x L’ T= = (= L+DC+2α) Vf fZ x Z x n L : Workpiece length [mm] Vf DC DC : Cutter dia. [mm] α α L α : Idling distance [mm] L’ Vf : Table feed [mm/min] fz : Feed per tooth [mm/t] Z : No. of inserts n : Spindle revolution [min-1] R42