
Solid carbide milling Recommended cutting data End mill – HM series A Starting values for cutting speed vc [m/min] HM-2E HM-2EFP HM-2EP HM-4EL HM-2ES HM-4EFP HM-4E Machining group Shoulder milling Shoulder milling Turning Brinell Material group Composition / structure / heat treatment hardness Ø [mm] ae max Ø [mm] ae max HB 0 < x ≤ 20 0,05 x D 0 < x ≤ 20 0,05 x D KMG555 KMG555 ae / D ae / D 1/1 1/2 1/10 f-group 1/1 1/2 1/10 f-group approx. 0,15 % C annealed 125 1 B Unalloyed steel approx. 0,45 % C approx. 0,45 % C annealed tempered 190 250 2 3 approx. 0,75 % C annealed 270 4 approx. 0,75 % C tempered 300 5 P annealed 180 6 Milling tempered 275 7 Low-alloyed steel tempered 300 8 tempered 350 9 High-alloyed steel and high-alloyed annealed 200 10 tool steel hardened and tempered 325 11 ferritic/martensitic annealed 200 12 martensitic tempered 240 13 M Stainless steel C austenitic austenitic-ferritic quench hardened 180 230 14 15 perlitic/ferritic 180 16 Grey cast iron perlitic (martensitic) 260 17 ferritic 160 18 K Cast iron with spheroidal graphite perlitic 250 19 Drilling ferritic 130 20 Malleable cast iron perlitic 230 21 cannot be hardened 60 22 Aluminium wrought alloys hardenable hardened 100 23 ≤ 12 % Si, cannot be hardened 75 24 Cast aluminium alloys ≤ 12 % Si, hardenable hardened 90 25 N > 12 % Si, cannot be hardened 130 26 D Copper and copper alloys machining steel, PB> 1% CuZn, CuSnZn 110 90 27 28 (bronze/brass) CuSn, Pb-free copper, electrolytic copper 100 29 annealed 200 30 Fe-based alloys Information hardened 280 31 Technical Heat-resistant alloys annealed 250 32 S Ni or Co bass hardened 350 33 cast 320 34 pure titanium Rm 400 35 Titanium alloys α and β alloys hardened Rm 1050 36 hardened and tempered 55 HRC 37 55 100 125 3 50 95 115 3 Hardened steel hardened and tempered 60 HRC 38 55 95 120 3 50 95 110 3 H Hard cast iron E Hardened cast iron cast hardened and tempered 400 55 HRC 39 40 70 55 125 100 160 125 3 3 65 50 120 95 145 115 3 3 Thermoplasts 41 Thermosetting plastics 42 Plastic, glass-fibre reinforced GFRP 43 X Non-metallic materials Plastic, carbon fibre reinforced CFRP 44 Index Graphite 45 Wood 46 Note: The given cutting values are guide values, which were determined under ideal conditions. The values have to be adapted in individual cases. Feed rate recommendations on page B460. For examples of material for cutting tool groups view page D22. B 444