Catalogo ABC 54

Formulas to calculate work parameters for HARD METAL (carbide) end mills d = end mill diameter (mm) Vc = cutting speed (m/min) n = number of revs per minute (rpm) of the end mill fz = progress per tooth (mm) z = number of cutting edges on the end mill f = feeding speed (mm/min) fzf = feeding speed value for the drilling operation with end with central cutting edge end mills V c =  × n × d 1000 n = 1000 × V c  × d f = f z × z × n f zf = f z × 0,3 Type of material Resistance to traction or hardness of the material Examples of materials Cutting speed in m/min (Vc) Endmillswith2/3/4cuttingedges Roughing end mills Radial end mills End mills with 6/8 cutting edges End mills for aluminium End mills for hard materials Normal Coated Normal Coated Normal Coated Coated Normal Coated Construction steel ≤ 600 N/mm 2 S185, StEP275N, P235GH, P265GH, E295, E360, P500NH 70-85 120-140 70-85 125-145 85-95 140-200 150-180 Nitride steel 850-1000 34 CrAl6 60-70 100-120 55-65 90-110 70-80 120-150 110-130 Tool steels, high speed steel ≤ 1000 N/mm 2 C75, 102Cr6, 29CrMoV9, S6-5-2-5, 61CrV4 45-55 80-90 45-60 75-95 50-60 90-110 85-95 Tool steel, alloy steels ≤ 1100 N/mm 2 X210Cr12, X42Cr13, 105WCr6, 14NiCr14, 16MnCr5 30-40 55-60 30-40 50-65 35-45 60-70 70-80 Stainless steel ≤ 850 N/mm 2 X12CrS13, X14CrMoS17, X5CrNi18 10, X6CrNiMoTi17 12 2, X2CrMoTi18 2 40-50 65-75 40-45 65-75 50-60 80-90 80-90 Cast iron, spheroidal cast iron, hardened cast iron <280 HB EN-GJL-100, EN-GJL-300, EN-GJMW-340-5, EN-GJL-300 70-100 120-160 50-60 80-100 85-100 140-180 100-120 Special alloys ≤ 1400 N/mm 2 Inconel, hastelloy, Nimonic 25-30 40-50 40-45 65-75 50-60 80-90 80-90 Titanium ≤ 750 N/mm 2 Ti99.5 65-80 110-130 65-75 110-130 75-90 130-160 130-140 Titanium and titanium alloys ≤ 1400 N/mm 2 Ti Al6Zr5, TiAl6V4, TiAl8Mo1V1 25-30 40-50 15-20 20-35 30-40 50-60 40-50 Low % copper alloy ≤ 500 N/mm 2 SE-Cu, CuSn6, G-CuSn5ZnPb 100-120 160-200 90-150 150-250 120-140 190-240 180-250 Brass ≤ 600 N/mm 2 CuZn39Pb2,CuZn39Pb3 100-120 160-200 90-150 150-250 120-140 190-240 180-250 200-300 Bronze ≤ 600 N/mm 2 CuAl5, CuAl11Ni 100-120 160-200 90-150 150-250 120-140 190-240 180-250 200-300 Aluminium and aluminium alloy ≤ 450 N/mm 2 Al99.5, AlMg1, AlMgSiPb, AlZnMgCu1.5 180-380 300-600 180-300 300-450 200-400 300-600 400-800 380-500 Magnesium and magnesium alloys ≤ 450 N/mm 2 MgMn2, G-MgAlZn1, G-MgAl6Zn3 180-380 300-600 180-300 300-450 200-400 300-600 400-800 380-500 Hardened steel 50-56 HRc 30-40 50-70 Hardened steel 56-62 HRc 20-30 35-50