ATA International Product Catalogue

220404 220530 1490 CONTACT INFORMATION For more information please call +353 49 435 2138 or send an email to ask@atagroup.ie – Multiply the feed rate f (mm per rev.) with our correction factor Kv for spot drilling – Spot drilling with reduced feed rate until tool is cutting with full diameter 0.25×D in depth. – After spot drilling with a reduced feed rate (correction factor) you drill with the feed rate f (mm/rev) according the recommended cutting date. – We recommend on flat surfaces (0°) a pilot hole with our solid carbide drill 22 0405 / 22 0406. Work Material Material Group Strength [N/mm 2 ] Hardness HB Examples Cutting speed v c [m/min] Recommended feed rate (mm per rev.) based diameter range 22 0404 22 0530 3–5 mm 5–8 mm 8–12 mm 12–16 mm 16–20 mm Unalloyed steel, cast iron 1.1–1.2 2.1–2.2 3–4–5 ≤ 600 N/mm 2 St37, St42, C22, GS38 75–95 0.08–0.14 0.12–0.20 0.15–0.25 0.16–0.28 0.20–0.32 ≤ 700 N/mm 2 St50, St60, C45, GS62 65–85 0.08–0.14 0.12–0.20 0.15–0.25 0.16–0.28 0.20–0.32 > 700 N/mm 2 St70, C70 60–80 0.08–0.15 0.12–0.22 0.15–0.28 0.16–0.30 0.20–0.33 Alloyed steel 6–7 8–9 10–11 ≤ 900 N/mm 2 16MnCr5, 90MnCrV8 50–70 0.08–0.15 0.12–0.22 0.15–0.28 0.16–0.30 0.20–0.33 ≤ 1000 N/mm 2 100Cr6, 42CrMo4 40–60 0.08–0.12 0.10–0.15 0.11–0.20 0.12–0.24 0.14–0.25 > 1000 N/mm 2 X210Cr13, 34CrAlNi7 40–50 0.08–0.12 0.10–0.15 0.11–0.20 0.12–0.24 0.14–0.25 Stainless steel 14.1–14.2 X5 CrNi 18 9 (V2A) 40–60 0.04–0.08 0.05–0.15 0.06–0.12 0.09–0.16 0.12–0.20 Stainless steel (Cr-Ni alloyes) 14.3–14.4 X10 CrNiMoTi 18 10, G-X40 CrNi 27 4 40–50 0.03–0.06 0.04–0.08 0.05–0.10 0.06–0.12 0.06–0.12 Cast Iron 15–16 ≤ 200 HB GG10, GG15 80–110 0.08–0.20 0.12–0.25 0.16–0.32 0.20–0.36 0.24–0.40 ≤ 250 HB GG20, GG25, GTW40 70–100 0.08–0.15 0.10–0.20 0.12–0.28 0.16–0.32 0.20–0.36 > 250 HB GG30, GG40, GTS70 60–80 0.08–0.15 0.10–0.20 0.12–0.28 0.16–0.32 0.20–0.36 Ductile cast iron, Vermicular cast iron, malleable cast iron 17–18 ≤ 600 N/mm 2 GGG40, GGG50 65–80 0.08–0.15 0.10–0.20 0.16–0.28 0.24–0.32 0.28–0.40 > 600 N/mm 2 GGG60, GGG70, GGV 60–75 0.06–0.12 0.08–0.15 0.14–0.25 0.20–0.28 0.24–0.32 Aluminium (<10% Si) 21–22 GD-AlSi9Cu3, AlSi7Mg0.6 100–250 0.08–0.20 0.12–0.28 0.20–0.36 0.24–0.40 0.28–0.44 Aluminium (>10% Si) 23–24 25.1 GD-AlSi12(Cu), AlSi17Cu4Mg (Alusil) 100–160 0.08–0.20 0.12–0.28 0.20–0.36 0.24–0.40 0.28–0.44 Copper 26–27–28 G-CuZn15, CuZn37, CuSn8 100–200 0.08–0.20 0.12–0.28 0.20–0.36 0.24–0.40 0.28–0.44 Brass, Bronze G-CuZn15, CuZn37, CuSn8 100–180 0.08–0.20 0.12–0.28 0.20–0.36 0.24–0.40 0.28–0.44 Correction factor Kv for f (mm/rev) during spot drilling Inclination material surface Kv 3×D Kv 5×D 15° 0.5 0.25 30° 0.4 not recommended 45° 0.25 not recommended Recommended cutting data for solid carbide drills for Aluminium and steel < 5×D with interior cooling supply 11 Index 10 9 OIL 8 7 6 5 4 3 2 1