231814 231813 1399 Recommended cutting data for Karnasch solid carbide thread mills with interior cooling supply Material group Vc m/min. M3 M4 M5 M6 M8 M10 M12 M14 M16 fz mm fz mm fz mm fz mm fz mm fz mm fz mm fz mm fz mm P 1.1-1.2-1.3-1.4-1.5 Non-alloy steels <850 N/mm² 100-130 0.010-0.015 0.015-0.025 0.030-0.040 0.045-0.050 0.050-0.065 0.070-0.080 0.080-0.100 0.090-0.110 0.100-0.120 <1100 N/mm² 90-120 0.010-0.015 0.015-0.025 0.030-0.035 0.045-0.050 0.050-0.065 0.070-0.080 0.080-0.095 0.09-0.110 0.100-0.110 2.1-2.2-2.3.-2.4 Heat treatable steel <950 N/mm² 80-120 0.006-0.010 0.015-0.020 0.025-0.035 0.040-0.050 0.050-0.060 0.06-0.08 0.07-0.09 0.090-0.105 0.095-0.110 <1100 N/mm² 80-100 0.006-0.010 0.010-0.015 0.02-0.035 0.030-0.040 0.040-0.055 0.060-0.080 0.070-0.085 0.080-0.095 0.095-0.105 <1300 N/mm² 60-80 0.006-0.010 0.010-0.015 0.02-0.035 0.030-0.040 0.040-0.055 0.060-0.080 0.070-0.085 0.080-0.095 0.095-0.105 2.5 Nitriding steels <1000 N/mm² 70-110 0.004-0.008 0.006-0.015 0.010-0.030 0.030-0.045 0.040-0.060 0.050-0.075 0.070-0.085 0.080-0.095 0.090-0.100 3.1-3.2 High alloyed steels <700 N/mm² 40-80 0.004-0.008 0.006-0.012 0.010-0.015 0.020-0.035 0.025-0.040 0.040-0.055 0.055-0.075 0.075-0.085 0.080-0.095 <1400 N/mm² 30-60 0.004-0.008 0.006-0.012 0.010-0.015 0.020-0.035 0.025-0.040 0.040-0.055 0.055-0.075 0.075-0.085 0.080-0.095 M 4.1 Stainless steel ferritic/martensitic 55-75 0.005-0.007 0.010-0.013 0.150-0.020 0.020-0.025 0.025-0.035 0.035-0.045 0.045-0.065 0.060-0.070 0.065-0.075 4.2 Stainless Steel martensitic 55-75 0.005-0.007 0.010-0.013 0.150-0.020 0.020-0.025 0.025-0.035 0.035-0.045 0.045-0.065 0.060-0.070 0.065-0.075 4.3 Stainless steel austensitic/ferritic 55-75 0.005-0.007 0.010-0.013 0.150-0.020 0.020-0.025 0.025-0.035 0.035-0.045 0.045-0.065 0.060-0.070 0.065-0.075 K 7.1 Cast iron with lamellar graphite <600 N/mm² 90-120 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 7.2 Cast iron with lamellar graphite <1200 N/mm² 80-110 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 7.3 Cast iron with modular graphite <600 N/mm² 80-100 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 7.4 Cast iron with modular graphite <850 N/mm² 70-90 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 7.5 Malleable cast iron <450 N/mm² 70-90 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 7.6 Malleable cast iron <800 N/mm² 70-90 0.005-0.015 0.010-0.020 0.020-0.030 0.040-0.050 0.050-0.060 0.060-0.070 0.070-0.080 0.080-0.090 0.090-0.100 S 5.1-5.3 Nickel-chromium alloy <800 N/mm² 35-60 0.004-0.006 0.008-0.012 0.012-0.020 0.020-0.025 0.025-0.035 0.035-0.045 0.045-0.055 0.050-0.070 0.060-0.080 5.4 Nickel-chromium alloy <950 N/mm² 35-60 0.004-0.007 0.008-0.013 0.012-0.021 0.020-0.026 0.025-0.035 0.035-0.045 0.045-0.055 0.050-0.071 0.060-0.081 5.5 Nickel-chromium alloy <1300 N/mm² 35-60 0.004-0.008 0.008-0.014 0.012-0.022 0.020-0.027 0.025-0.035 0.035-0.045 0.045-0.055 0.050-0.072 0.060-0.082 H Hardened steel 45-55 HRC 40-55 0.003-0.006 0.008-0.011 0.012-0.016 0.016-0.020 0.020-0.025 0.023-0.026 0.025-0.030 0.030-0.035 0.033-0.036 Vc = Cutting speed (m/min) Vf = Feed rate (mm/min) fz = Feed per tooth (mm) ae = Width of cut (mm) ap = Depth of cut (mm) n = rpm 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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