Page 279 - Demo
P. 279
277DEEP HOLE DRILLINGDTS - Machine Setting for Double Tube SystemNet PowerPc (kW)18 19 20 21 22 23 24 25 26 27 28109876543210Vc = 100 m/minf = 0.25 mm/revVc = 70 m/minf = 0.25 mm/revDrill dia. (mm)Feed ForceFf (kN)18 19 20 21 22 23 24 25 26 27 281086420f = 0.25 mm/revf = 0.15 mm/revDrill dia. (mm)TorqueT (kNm)18 19 20 21 22 23 24 25 26 27 280.10.080.060.040.020f = 0.25 mm/revf = 0.15 mm/revDrill dia. (mm)Coolant PressureP (MPa)18 19 20 21 22 23 24 25 26 27 2832.521.510.51MPa = 1.0 N/mm21Mpa %u2248 10 atmDrill dia. (mm)Coolant Volumeq (l/min)18 19 20 21 22 23 24 25 26 27 281201008060400Drill dia. (mm)The above values should not be used as the exact recommendations. They may need modification depending on the machining conditions, materials, etc.
