Общий каталог Tungaloy 2020 - 2021 - страница 1270

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2-effective DrillIndexable DrillDeep Hole Drill STANDARD CUT TING CONDITIONS ISO Workpiecematerial ExamplesJIS, ISO Hardness Cutting speed: Vc (m/min) Feed: f (mm/rev)ø3 ~ ø6ø6 ~ ø10ø10 ~ ø20ø3 ~ ø6ø6 ~ ø10ø10 ~ ø20 Mild steels, SS400, S25C, etc.Low carbon steelsSt42-1, C25, etc.< 180HB70 - 14080 - 16090 - 1900.15 - 0.25 0.2 - 0.35 0.25 - 0.4 Carbon steels,Alloy steelsS45C, SCM440, etc.180 ~ 300HBC45, 42CrMo4, etc.50 - 13070 - 16080 - 170 0.15 - 0.25 0.2 - 0.35 0.25 - 0.4 High alloy steels, etc. SCM440H, etc.42CrMoS4, etc.250 ~ 350HB40 - 100 60 - 140 60 - 160 0.1 - 0.2 0.15 - 0.3 0.15 - 0.3 Stainless steels SUS304, etc. < 200HB 30 - 70 50 - 100 50 - 120 0.1 - 0.2 0.1 - 0.25 0.15 - 0.35 X5CrNi18-9, etc. Grey cast irons FC250, etc.250, etc.< 200HB 80 - 140 100 - 160 100 - 180 0.15 - 0.35 0.2 - 0.4 0.25 - 0.5 Ductile cast irons FCD450, etc. < 300HB 70 - 140 80 - 150 80 - 170 0.15 - 0.35 0.2 - 0.4 0.25 - 0.45 450-10S, etc. Aluminium alloys ADC12, etc.AlSi11Cu3, etc.- 80 - 160 100 - 180 100 - 190 0.15 - 0.35 0.2 - 0.45 0.25 - 0.6 Titanium alloys Ti-6Al-4V, etc. - 25 - 60 30 - 80 30 - 80 0.1 - 0.2 0.1 - 0.25 0.15 - 0.35 Heat-resistant alloys Inconel, etc. 250HB < 10 - 30 10 - 40 10 - 40 0.02 - 0.1 0.05 - 0.15 0.1 - 0.25 High hardened steels SKD11, etc. < 40HRC 20 - 50 30 - 60 30 - 60 0.08 - 0.1 0.1 - 0.15 0.12 - 0.2 X153CrMoV12, etc. Note: Cutting conditions in the above table show standard cutting conditions. Cutting conditions may change due to the rigidity and power of the machine and the workpiece material. Especially in case of making deep hole drilling (L/D is over 5), the lower cutting speed is better for longer tool life. The coolant pressure must be 0.5 MPa - 1MPa. Especially for small diameter drill, the higher pressure is recommended. Oil holes that become blocked may cause drill breakages. A filter to prevent the circulation of chips must be used on the coolant supply system. J044 www.tungaloy.com