Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS ● MPM type (EOMT/W type insert) + MSN Carbide Shank Holder Tool dia. (mm) 10/11 12/13 16/17 Work Insert Materials Grades No. of teeth 2N No. of teeth 3N No. of teeth 4N 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) Carbon steel JC7560 50 0.3 ~6 3,820 4,580 60 0.3 ~8 3,180 5,720 70 0.4 ~12 2,390 8,600 S50C, S55C(C50,C55)(JC8050)(JC5118)750.25~6 3,440 3,720 80 0.25 ~8 2,860 4,630 120 0.3 ~12 2,150 6,970 Below 250HB (JC8118) 100 0.2 ~5 3,060 2,940 110 0.2 ~7 2,540 3,660 160 0.25 ~12 1,910 5,500 Die steel JC7560 50 0.3 ~6 3,500 4,200 60 0.3 ~8 2,920 5,260 70 0.4 ~12 2,190 7,880 SKD61, SKD11(1.2344, 1.2379)(JC8050)(JC5118)750.2~63,1503,400 80 0.2 ~8 2,630 4,260 120 0.3 ~12 1,970 6,380 Below 255HB (JC8118) 100 0.15 ~5 2,800 2,690 110 0.15 ~7 2,340 3,370 160 0.25 ~12 1,750 4,900 Mold steel JC7560 50 0.3 ~6 3,500 4,200 60 0.3 ~8 2,920 5,260 70 0.4 ~12 2,190 7,880 HPM7, PX5, P20(1.2311, P20)(JC8050)(JC5118)750.25~63,1503,400 80 0.25 ~8 2,630 4,260 120 0.3 ~12 1,970 6,380 30-36HRC (JC8118) 100 0.2 ~5 2,800 2,690 110 0.2 ~7 2,340 3,370 160 0.25 ~12 1,750 4,900 Mold steelNAK80, HPM1, P21(1.2311,P21)38-43HRCJC8050(JC5118)(JC8118)500.3750.251000.2~6~6~52,8603,150602,5702,540802,2902,0101100.3~80.25~80.2~72,3902,1501,9103,9403,1902,520701201600.3~121,7900.25~121,6100.2~121,4305,0104,0603,200 Hardened die steelSKD61, DAC, DHA(1.2344, 1.2379)42-52HRCJC8118500.25~62,2302,230 60 0.25 ~8 1,860 2,790 70 0.3JC5118750.15~62,0101,810800.15~81,6702,2501200.2(JC8050)100––––110––––160–~121,390~121,250––3,3402,700– Hardened die steelSKD11, SLD, DC11(1.2344, 1.2379)55-62HRCJC8118JC5118EOMWtype50751000.1––~6––950470600.1~8––80––––110––800––600 70 0.15 ~12 600–1200.1~12540–160–––600490– Grey & Nodularcast ironFC, FCD (GG, GGG)Below 300HBJC8118JC5118(JC7560)500.3750.251000.2~6~6~64,7805,740604,3004,640803,8203,6701100.3~80.25~80.2~83,9803,5803,1807,1605,8004,580701201600.4~122,98010,7300.35~122,6808,6800.3~122,3806,850 Stainless steelSUS304Below 250HB500.3 ~6 3,820 4,580 60 0.3 ~8 3,180 5,720 70 0.4 ~12 2,390 8,600JC7560(JC8050)750.2~63,4403,720800.2~82,8604,6301200.3~122,1506,8801000.15~53,0602,9401100.15~72,5403,6601600.25~121,9105,350 JC7560 50 0.3 ~6 1,910 1,910 60 0.3 ~8 1,590 2,380 70 0.3 ~12 1,190 2,380 Titanium alloy(Ti-6Al-4V)(JC5118)(JC8050)750.2~61,720 1,550 80 0.2 ~8 1,430 1,930 120 0.25 ~12 1,070 1,930 (JC8118) 100 0.15 ~5 1,530 1,220 110 0.15 ~7 1,270 1,520 160 0.2 ~12 950 1,520 JC8118 50 0.3 ~6 950 760 60 0.3 ~8 800 960 70 0.3 ~12 600 960 Inconel(INCO718) JC5118(JC8050)750.2 ~6 850 760 80 0.2 ~8 720 780 120 0.25 ~12 540 780 (JC7560) 100 0.15 ~5 760 610 110 0.15 ~7 640 610 160 0.2 ~12 480 610 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. B092 4)Use air blow to flush the chip sout.