Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS ● MPM type (ZOMT type insert) + MS Carbide Shank Holder Tool dia. (mm) Work Insert 20/21 25 Materials Grades No. of teeth 5N No. of teeth 6N ℓ ap ap×ae n Vf ℓ ap ap×ae n Vf (mm) (mm) (mm2) (min-1) (mm/min) (mm) (mm) (mm2) (min-1) (mm/min) Carbon steel 70 ~5.0 ~16.0 2,550 1,020 90 ~5.0 ~20.0 2,040 980 S50C, S55C JC5118(C50, C55)(JC8050)120~4.0~8.0 2,300 800 140 ~4.0 ~10.0 1,840 770 Below 250HB 190 ~3.0 ~4.0 2,040 610 210 ~3.0 ~8.0 1,630 590 Die steel 70 ~5.0 ~16.0 2,390 720 90 ~5.0 ~20.0 1,910 690 SKD61, SKD11 JC5118(1.2344, 1.2379)(JC8050)120~4.0~8.02,150 540 140 ~4.0 ~10.0 1,720 520 Below 255HB 190 ~3.0 ~4.0 1,910 380 210 ~3.0 ~8.0 1,530 370 Mold steel 70 ~4.0 ~16.0 1,910 570 90 ~4.0 ~20.0 1,530 550 HPM7, PX5,NAK80, P20(1.2311, P20)JC8050(JC5118)120~3.0~8.01,720 430 140 ~3.0 ~10.0 1,380 410 30-43HRC 190 ~2.0 ~4.0 1,530 300 210 ~2.0 ~8.0 1,220 290 Grey & Nodular 70 ~5.0 ~18.0 2,390 960 90 ~5.0 ~25.0 1,910 920 cast iron FC, FCD(GG, GGG)JC5118120 ~4.0 ~10.0 2,150 750 140 ~4.0 ~12.0 1,720 720 Below 300HB 190 ~3.0 ~5.0 1,910 570 210 ~3.0 ~9.0 1,530 550 70 ~5.0 ~16.0 2,390 720 90 ~5.0 ~20.0 1,910 690 Stainless steel SUS304 JC8050 120 ~4.0 ~8.0 2,150 540 140 ~4.0 ~10.0 1,720 520 Below 250HB 190 ~3.0 ~4.0 1,910 380 210 ~3.0 ~8.0 1,530 370 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 spindle speed with keeping feed per tooth. 3) If machine does not have enough power, recommend to reduce depth of cut first and reduce spindle speed and feed speed. B098 4)Use air blow to flush the chip sout.