Каталог Iscar сверла со сменной режущей частью 2022 - страница 127

Power Pe (kW)Power Pe (kW) INDEXABLE DRILLS USER GUIDE Machining Conditions Machine Power and Feed Force Requirements Internal Coolant Pressure Selecting Coolant Pressure and Flow Rate Power required, in relation to drill diameter Coolant Flow Rate (liter/min) 24 60 22 flowrate 20 18 45 16 14 12 30 10 8 6 4 15 2 0 16 20 24 28 30 34 38 42 46 50 54 58 62 66 70 Drill Diameter D (mm) 16 25 35 45 60 f=0.25 Drill Diameter D (mm) f=0.18 f=0.1 Minimum Coolant Pressure (bar) Required Machine Power 10 Material: SAE 4140 9 Cutting speed: 100 m/min 8 7-13 X D For different cutting speeds, use factor as follows: 7 Machine Power 6 4.5 X D P = Pe · C η 3XD5 2XD Vc [m/min] 100 150 200 4 C 1.0 1.5 2.0 3 η=Machine efficiency 2 1 16 25 35 45 55 65 Feed force (thrust force) required, Drill Diameter D (mm) in relation to drill diameter * For special drills more than 4xD, it is recommended to use high coolant pressure 15–70 bar 12 11 10 9 8 7 6 5 4 3 2 1 0 16 20 24 28 30 34 38 42 46 50 54 58 62 66 70 Drill Diameter D (mm) f=0.25 f=0.18 f=0.1 Required Feed Force Material: SAE 4140 125