
MACHINING CONDITIONS - DRILLING - CUTTING SPEED (Vc) MACHINING CONDITIONS - DRILLING - DEPTH OF CUT AND FEED FOR DRILLING BODIES 2 X D AND 3 X D LT 30 SPMG 050204 NN SPMG 090408 NN LT 3130 SPMG 060204 NN SPMG 110408 NN SPMG 07T308 NN LT 30 LT 3130 SPMG SPMG SPMG SPMG SPMG Material Lamina Material Vc [m/min] Vc [m/min] Material Lamina Material 050204 NN 060204 NN 07T308 NN 090408 NN 110408 NN Hardness Hardness Group Gr. N° Examples Group Gr. N° Examples min max min max Feed [mm/z] Feed [mm/z] Feed [mm/z] Feed [mm/z] Feed [mm/z] min max min max min max min max min max C35, Ck45, 125 HB 270 297 C35, Ck45, 125 HB Non Alloyed 1 1020, 1045, 190 HB 180 230 198 253 1060, 28Mn6 Non Alloyed 1 1020, 1045, 190 HB 0.04 0.12 0.04 0.15 0.06 0.18 0.06 0.22 0.06 0.24 250 HB 200 220 1060, 28Mn6 250 HB 180 HB 230 253 42CrMo4, 120 132 180 HB St50, Ck60, 230 HB 190 209 42CrMo4, Low Alloyed 2 St50, Ck60, 230 HB 0.24 P 4140, 4340, 280 HB 170 187 Low Alloyed 2 0.06 0.12 0.06 0.14 0.08 0.18 0.10 0.22 0.12 100Cr6 100 110 P 4140, 4340, 280 HB 350 HB 150 165 100Cr6 350 HB 0.20 220 HB 170 187 X40CrMoV5, 70 77 220 HB 280 HB 150 165 X40CrMoV5, 0.10 0.08 0.12 0.14 0.16 High Alloyed 3 H13, M42, D3, 280 HB S6-5-2, 12Ni19 320 HB 130 143 High Alloyed 3 H13, M42, D3, 0.06 0.06 0.08 0.08 0.10 60 66 S6-5-2, 12Ni19 320 HB 350 HB 100 110 0.08 0.12 0.14 0.16 0.18 350 HB 304, 316, 180 HB 170 230 187 253 Austenitic 4 304, 316, 180 HB 0.04 0.04 0.06 0.08 0.10 X5CrNi18-9 240 HB 120 210 132 231 Austenitic 4 0.10 0.12 0.14 0.16 0.18 X5CrNi18-9 240 HB 0.05 0.05 0.07 0.09 0.11 X2CrNiN23-4, 290 HB 120 132 M Duplex 5 70 77 X2CrNiN23-4, 290 HB 0.15 S31500 310 HB 120 132 M Duplex 5 0.05 0.09 0.05 0.10 0.06 0.12 0.06 0.14 0.08 S31500 310 HB 0.13 Ferritic & 410, X6Cr17, 200 HB 100 150 110 165 6 Ferritic & 410, X6Cr17, 200 HB 0.05 0.09 0.05 0.10 0.06 0.12 0.06 0.14 0.08 0.15 Martensitic 17-4PH, 430 42 HRc 60 100 66 110 6 Martensitic 17-4PH, 430 42 HRc 0.04 0.08 0.04 0.08 0.05 0.10 0.05 0.12 0.06 0.13 GG20, GG40, EN- 150 HB 230 253 Grey 7 GJL-250, 200 HB 150 210 165 231 GG20, GG40, EN- 150 HB N030B Grey 7 GJL-250, 200 HB 0.06 0.12 0.06 0.14 0.08 0.16 0.10 0.20 0.12 0.24 250 HB 170 187 N030B K 250 HB 150 HB 200 220 K Malleable GGG40, GGG70, 150 HB 8 200 HB 120 170 132 187 Malleable GGG40, & Nodular 50005 8 200 HB 0.06 0.12 0.06 0.14 0.08 0.16 0.10 0.20 0.12 0.24 250 HB 150 165 & Nodular GGG70, 50005 250 HB Incoloy 800 240 HB Fe, Ni & 30 40 27.5 38.5 Incoloy 800 240 HB Co based 9 Inconel 700 250 HB Fe, Ni & Co based 9 Inconel 700 250 HB 0.05 0.08 0.05 0.08 0.06 0.09 0.06 0.09 0.06 0.10 S Stellite 21 350 HB 20 40 25.3 38.5 S Stellite 21 350 HB T40 - 40 60 38.5 66 Ti based 10 TiAl6V4 - TiAl6V4 - 30 40 30.8 44 Ti based 10 0.05 0.08 0.05 0.08 0.06 0.09 0.06 0.09 0.06 0.10 T40 - 45 HRc 50 90 55 99 X100CrMo13, 440C, X100 CrMo13, 45 HRc Steel 50 HRc 40 70 44 77 G-X260NiCr42 Steel 440C, 50 HRc H 11 55 HRc 30 60 33 66 G-X260NiCr42 H 11 55 HRc 0.04 0.07 0.04 0.07 0.05 0.08 0.06 0.09 0.06 0.09 Chilled Cast Iron Ni-Hard 2 400 HB 40 60 40 66 Chilled Cast Iron Ni-Hard 2 400 HB White Cast Iron G-X300CrMo15 55 HRc 30 50 33 55 White Cast Iron G-X300CrMo15 55 HRc NF Aluminium 12 AlSi12 130 HB 200 400 220 440 NF Aluminium 12 AlSi12 130 HB 0.05 0.12 0.05 0.14 0.06 0.16 0.06 0.18 0.08 0.20 346 347