Tooling by DIJET QM MAX G II GMX/ MXGTYPE ■ RECOMMENDED CUTTING CONDITIONS ● MXG + MSN type Tool dia. (mm) 16/17 20/21 25 WorkMaterial Grades No. of teeth 2N No. of teeth 3N No. of teeth 3N ℓ ap ae n Vf ℓ ap ae n Vf ℓ ap ae n Vf (mm) (mm) (mm) (min-1) (mm/min) (mm) (mm) (mm) (min-1) (mm/min) (mm) (mm) (mm) (min-1) (mm/min) ~50 0.8 ~10 3,580 8,590 ~60 0.8 ~14 2,860 10,300 ~75 0.8 ~19 2,290 8,240 Carbon steel(C50, C55)Below 250HBJC7560(JC8118)800.6~103,5808,590 100 0.6 ~14 2,860 10,300 125 0.6 ~19 2,290 8,240 120 0.6 ~10 3,180 7,630 140 0.6 ~14 2,550 9,180 175 0.6 ~19 2,040 7,340 ~50 0.8 ~10 3,580 8,590 ~60 0.8 ~14 2,860 10,300 ~75 0.8 ~19 2,290 8,240 Die steel(1.2344, 1.2379)Below 255HBJC7560(JC8118)800.6~103,5808,590 100 0.6 ~14 2,860 10,300 125 0.6 ~19 2,290 8,240 120 0.6 ~10 3,180 7,630 140 0.6 ~14 2,550 9,180 175 0.6 ~19 2,040 7,340 ~50 0.8 ~10 3,180 7,630 ~60 0.8 ~14 2,550 9,180 ~75 0.8 ~19 2,040 7,340 Mold steel(1.2311, P20)30-36HRCJC7560(JC8118)800.6~103,1807,630 100 0.6 ~14 2,550 9,180 125 0.6 ~19 2,040 7,340 120 0.6 ~10 2,590 6,220 140 0.6 ~14 2,070 7,450 175 0.6 ~19 1,660 5,980 ~50 0.6 ~10 1,890 4,160 ~60 0.6 ~14 1,510 4,980 ~75 0.6 ~19 1,210 3,990 Mold steel (1.2311, P21) JC8118 80 0.5 ~10 1,690 3,040 100 0.5 ~14 1,350 3,650 125 0.5 ~19 1,080 2,920 38-43HRC 120 0.5 ~10 1,590 2,860 140 0.5 ~14 1,270 3,430 175 0.5 ~19 1,020 2,750 Hardened ~50 0.6 ~10 1,890 4,160 ~60 0.6 ~14 1,510 4,980 ~75 0.6 ~19 1,210 3,990 die steel(1.2344, 1.2379)JC8118800.5 ~10 1,690 3,040 100 0.5 ~14 1,350 3,650 125 0.5 ~19 1,080 2,920 42-52HRC 120 0.5 ~10 1,590 2,860 140 0.5 ~14 1,270 3,430 175 0.5 ~19 1,020 2,750 Grey & Nodular ~50 1.0 ~10 3,980 11,940 ~60 1.0 ~14 3,180 14,310 ~75 1.0 ~19 2,550 11,480 cast iron(GG, GGG)JC8118 80 0.8 ~10 3,980 11,940 100 0.8 ~14 3,180 14,310 125 0.8 ~19 2,550 11,480 Below 300HB 120 0.6 ~10 3,580 8,590 140 0.6 ~14 2,860 10,300 175 0.6 ~19 2,290 8,240 ~50 0.6 ~10 2,390 4,780 ~60 0.6 ~14 1,910 5,730 ~75 0.6 ~19 1,530 4,590 Stainless steel JC7560Below 250HB(JC8118)800.5~102,3904,780 100 0.5 ~14 1,910 5,730 125 0.5 ~19 1,530 4,590 120 0.5 ~10 1,990 3,180 140 0.5 ~14 1,590 3,820 175 0.5 ~19 1,270 3,050 ℓ: Overhung length, ap : Axial depth of cut, ae : Radial depth of cut, n : Spindle speed, Vf : Feed speed ■ NOTE 1) The cutting parameters to be adjusted according to the machine rigidity or work rigidity. 2) In case chatter occurrs, recommend to reduce depth of cut or feed speed. 3) If machine does not have enough power, recommend to reduce depth of cut first and reduce spindle speed and feed speed. B082 4) Use air blow to flush the chips out.