Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS / BOTTOM FACE FINISHING ● MPM type (YOHW type insert) + MSN Carbide Shank Holder Tool dia. (mm) 25 30 32 Materialto be cutGrades No. of teeth 6N No. of teeth 7N No. of teeth 8N 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) ~120 ≦0.12 12~25 3,180 3,820 ~160 ≦0.12 15~30 2,640 3,700 ~160 ≦0.12 16~32 2,490 3,980 Carbon steel(C50, C55)Below 250HBJC8015(DH102)190 ≦0.10 12~252,3802,280 240 ≦0.10 15~30 1,980 2,220 240 ≦0.10 16~32 1,870 2,380 235 ≦0.06 12~20 2,070 1,740 290 ≦0.06 15~24 1,700 1,670 290 ≦0.06 16~26 1,620 1,800 ~120 ≦0.12 12~25 2,930 3,160 ~160 ≦0.12 15~30 2,440 3,070 ~160 ≦0.12 16~32 2,290 3,290 Die steel(1.2344, 1.2379)Below 255HBJC8015(DH102)190 ≦0.10 12~252,2001,900 240 ≦0.10 15~30 1,820 1,830 240 ≦0.10 16~32 1,720 1,980 235 ≦0.06 12~20 1,900 1,440 290 ≦0.06 15~24 1,580 1,390 290 ≦0.06 16~26 1,490 1,500 ~120 ≦0.12 12~25 2.930 3,160 ~160 ≦0.12 15~30 2,440 3,070 ~160 ≦0.12 16~32 2,290 3,290 Mold steel(1.2311, P20)30-36HRCJC8015(DH102)190≦0.1012~252,2001,900 240 ≦0.10 15~30 1,820 1,830 240 ≦0.10 16~32 1,720 1,980 235 ≦0.06 12~20 1,900 1,440 290 ≦0.06 15~24 1,590 1,390 290 ≦0.06 16~26 1,490 1,500 ~120 ≦0.12 12~25 2,550 1,840 ~160 ≦0.12 15~30 2,120 1,780 ~160 ≦0.12 16~32 1,990 1,910 Mold steel(1.2311, P21)38-43HRCDH102(JC8015)190≦0.1012~251,9101,100 240 ≦0.10 15~30 1,600 1,080 240 ≦0.10 16~32 1,490 1,150 235 ≦0.06 12~20 1,660 840 290 ≦0.06 15~24 1,380 810 290 ≦0.06 16~26 1,290 870 Hardened ~120 ≦0.10 12~25 1,530 920 ~160 ≦0.10 15~30 1,280 900 ~160 ≦0.10 16~32 1,190 960 die steel DH102(1.2344, 1.2379)(JC8015)190≦0.0812~251,150550 240 ≦0.08 15~30 960 540 240 ≦0.08 16~32 890 570 42-52HRC 235 – – – – 290 – – – – 290 – – – – Hardened ~120 ≦0.10 12~25 890 430 ~160 ≦0.10 15~30 740 410 ~160 ≦0.10 16~32 700 450 die steel(1.2344, 1.2379)DH102190 ≦0.08 12~25670 260 240 ≦0.08 15~30 560 250 240 ≦0.08 16~32 520 270 55-62HRC 235 – – – – 290 – – – – 290 – – – – Grey & Nodular ~120 ≦0.15 12~25 2,550 2,300 ~160 ≦0.15 15~30 2,120 2,230 ~160 ≦0.15 16~32 1,990 2,380 cast iron(GG, GGG)JC8015(DH102)190≦0.1212~25 1,910 1,380 240 ≦0.12 15~30 1,600 1,340 240 ≦0.12 16~32 1,490 1,430 Below 300HB 235 ≦0.10 12~20 1,660 970 290 ≦0.10 15~24 1,380 940 290 ≦0.10 16~26 1,290 1.010 ~120 ≦0.12 12~25 2,930 3,160 ~160 ≦0.12 15~30 2,440 3,070 ~160 ≦0.12 16~32 2,290 3,290 Stainless steel JC8015Below 250HB(DH102)190≦0.1212~252,2001,900 240 ≦0.12 15~30 1,820 1,830 240 ≦0.12 16~32 1,720 1,980 235 ≦0.10 12~20 1,900 1,440 290 ≦0.10 15~24 1,590 1,390 290 ≦0.10 16~26 1,490 1,500 ~120 ≦0.12 12~25 640 460 ~160 ≦0.12 15~30 520 440 ~160 ≦0.12 16~32 500 480 Titanium alloy JC8015(Ti-6Al-4V)(DH102)190≦0.1012~25480280 240 ≦0.10 15~30 400 270 240 ≦0.10 16~32 370 290 235 ≦0.06 12~20 420 210 290 ≦0.06 15~24 340 200 290 ≦0.06 16~26 320 220 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. B106 4) Use air blow to flush the chips out.