306278 1459 Recommended cutting data for solid carbide Karnasch high feed-finishing end mills Roughing 8.2 - 8.3 Hardened steels 55-60 HRC 8.2 - 8.3 Hardened steels 60-65 HRC 8.2 - 8.3 Hardened steels 65-70 HRC n min–1 fz mm ae mm ap mm n min–1 fz mm ae mm ap mm n min–1 fz mm ae mm ap mm 17,500-22,000 0.06 1.10 0.08 12,500-16,000 0.04 0.8 0.06 10,000-12,500 0.025 0.70 0.054 11,500-15,000 0.08 1.65 0.12 8,500-10,500 0.06 1.2 0.09 7,000-8,500 0.045 1.05 0.081 9,000-11,000 0.10 2.20 0.16 6,000-8,000 0.08 1.6 0.12 5,000-6,000 0.065 1.40 0.108 6,000-7,500 0.17 3.30 0.24 4,000-4,500 0.12 2.4 0.18 3,500-4,000 0.070 2.10 0.162 4,500-5,500 0.22 4.40 0.32 2,500-3,500 0.16 3.2 0.24 2,500-3,000 0.080 2.80 0.216 3,500-4,500 0.28 5.50 0.40 2,000-3,000 0.19 4.0 0.30 2,000-2,500 0.115 3.50 0.270 3,000-3,500 0.33 6.60 0.48 2,000-2,500 0.23 4.8 0.36 2,000-2,300 0.140 4.20 0.324 Finishing 8.2 - 8.3 Hardened steels 55-60 HRC 8.2 - 8.3 Hardened steels 60-65 HRC 8.2 - 8.3 Hardened steels 65-70 HRC n min–1 fz mm ae mm ap mm n min–1 fz mm ae mm ap mm n min–1 fz mm ae mm ap mm 10,000-13,000 0.065 0.16 0.016 9,000-12,000 0.045 0.14 0.006 8,000-9,000 0.04 0.12 0.004 9,000-10,000 0.075 0.24 0.024 7,500-10,000 0.055 0.21 0.009 7,500-8,500 0.05 0.18 0.006 8,000-9,000 0.080 0.32 0.032 7,000-8,000 0.060 0.28 0.012 7,000-7,500 0.06 0.24 0.008 8,500-10,000 0.100 0.48 0.048 7,000-8,000 0.080 0.42 0.018 6,000-7,000 0.07 0.36 0.012 6,500-7,500 0.150 0.64 0.064 5,000-6,000 0.090 0.56 0.024 4,500-5,000 0.08 0.48 0.016 5,000-6,000 0.180 0.80 0.080 4,000-5,000 0.140 0.70 0.03 3,500-4,000 0.12 0.60 0.020 4,000-5,000 0.200 0.96 0.096 3,500-4,000 0.160 0.84 0.036 3,000-3,500 0.14 0.72 0.024 These conditons are for general guidance; in actual machining conditions adjust the parameters according to your actual machine and workpiece conditions. If the rpm available is lower than recommended please reduce the feed rate to the same ratio. Use only accurate and highly rigid machines. 11 Index 10 9 OIL 8 7 6 5 4 3 2 1
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