ATA International Product Catalogue

306276 1449 α/2 Recommended cutting data for solid carbide Karnasch parabola end mills These conditons are for general guidance; in actual maching conditions adjust the parameters according to your actual machine and work-piece 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. 8.1 Hardened steels 45 - 55 HRC 8.2-8.3 Hardened steels 55 - 65 HRC 8.3 Hardened steels 65- 72 HRC rpm Vf mm/min fz mm ap mm ae mm rpm Vf mm/min fz mm ap mm ae mm rpm Vf mm/min fz mm ap mm ae mm 18,000 1,944 0.027 0.22 0.05-0.1 16,500 1,650 0.025 0.22 0.05-0.1 13,000 1,300 0.025 0.22 0.05-0.1 9,000 1,620 0.045 1.18 0.05-0.1 7,000 1,400 0.050 1.18 0.05-0.1 6,500 1,040 0.040 1.18 0.05-0.1 12,000 1,680 0.035 0.27 0.05-0.1 11,500 1,610 0.035 0.27 0.05-0.1 8,500 1,190 0.035 0.27 0.05-0.1 9,000 1,620 0.045 0.32 0.05-0.1 7,000 1,400 0.050 0.32 0.05-0.1 6,500 1,040 0.040 0.32 0.05-0.1 6,000 1,320 0.055 1.18 0.05-0.1 4,500 1,260 0.070 1.18 0.05-0.1 4,000 880 0.055 1.18 0.05-0.1 6,000 1,320 0.055 0.39 0.05-0.1 4,500 1,260 0.070 0.39 0.05-0.1 4,000 880 0.055 0.39 0.05-0.1 4,500 1,080 0.060 0.45 0.05-0.1 3,500 980 0.070 0.45 0.05-0.1 3,000 720 0.060 0.45 0.05-0.1 4,500 1,080 0.060 1.18 0.05-0.1 3,500 980 0.070 1.18 0.05-0.1 3,000 720 0.060 1.18 0.05-0.1 8.1 Hardened steels 45 - 55 HRC 8.2-8.3 Hardened steels 55 - 65 HRC 8.3 Hardened steels 65 - 72 HRC rpm Vf mm/min fz mm ap mm ae mm rpm Vf mm/min fz mm ap mm ae mm rpm Vf mm/min fz mm ap mm ae mm 26,000 1,560 0.015 0.06 0.18 25,000 1,500 0.015 0.06 0.18 20,500 1,066 0.013 0.05 0.15 26,000 1,560 0.015 0.06 0.18 25,000 1,500 0.015 0.06 0.18 20,500 1,066 0.013 0.05 0.15 19,500 1,950 0.025 0.07 0.20 18,500 1,850 0.025 0.07 0.20 15,500 1,240 0.020 0.06 0.18 16,500 2,310 0.035 0.13 0.40 16,000 1,920 0.03 0.12 0.35 13,500 1,350 0.025 0.10 0.30 16,500 2,310 0.035 0.13 0.40 16,000 1,920 0.03 0.12 0.35 13,500 1,350 0.025 0.10 0.30 15,500 1,860 0.030 0.20 0.60 14,500 1,740 0.03 0.19 0.55 11,000 1,320 0.030 0.15 0.45 11,000 1,760 0.040 0.25 0.80 10,500 1,470 0.035 0.25 0.75 8,000 1,120 0.035 0.20 0.60 11,000 1,760 0.040 0.25 0.80 10,500 1,470 0.035 0.25 0.75 8,000 1,120 0.035 0.20 0.60 8.1 Hardened steels 45 - 55 HRC 8.2-8.3 Hardened steels 55 - 65 HRC 8.3 Hardened steels 65- 72 HRC rpm Vf mm/min fz mm rpm Vf mm/min fz mm rpm Vf mm/min fz mm 22,000 1,760 0.020 21,000 1,680 0.020 17,000 1,224 0.018 13,000 2,080 0.040 11,500 1,610 0.035 10,000 1,200 0.030 16,000 1,920 0.030 15,000 1,800 0.030 12,000 1,200 0.025 13,000 2,080 0.040 11,500 1,840 0.040 10,000 1,200 0.030 11,000 1,540 0.035 9,500 1,520 0.040 8,000 1,120 0.035 11,000 1,540 0.035 9,500 1,520 0.040 8,000 1,120 0.035 8,000 1,440 0.045 7,000 1,260 0.045 5,500 990 0.045 8,000 1,440 0.045 7,000 1,260 0.045 5,500 990 0.045 We recommend using the end mills at a working angle of α/2. 11 Index 10 9 OIL 8 7 6 5 4 3 2 1