Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS / BOTTOM FACE FINISHING ● MPM type (YOHW type insert) + MSN Carbide Shank Holder Tool dia. (mm) 10/11 12/13 Material Grades No. of teeth 2N No. of teeth 3N to be cut ℓ ap ae n Vf ℓ ap ae n Vf (mm) (mm) (mm) (min-1) (mm/min) (mm) (mm) (mm) (min-1) (mm/min) ~50 ≦0,12 5~10 7,920 3,170 ~60 ≦0,12 6~12 6,630 3,980 Carbon steel JC8015 (C50, C55) (DH102) 75 ≦0.10 5~10 5,940 1,900 80 ≦0.10 6~12 4,970 2,380 Below 250HB 100 ≦0.10 5~8 5.100 1,430 110 ≦0.10 6~10 4,300 1,800 ~50 ≦0,12 5~10 7,320 2,640 ~60 ≦0,12 6~12 6,100 3,290 Die steel JC8015 (1.2344, 1.2379) (DH102) 75 ≦0.10 5~10 5,460 1,580 80 ≦0.10 6~12 4,580 1,980 Below 255HB 100 ≦0.10 5~8 4,740 1,190 110 ≦0.10 6~10 3,960 1,500 ~50 ≦0,12 5~10 7,320 2,640 ~60 ≦0,12 6~12 6,100 3,290 Mold steel JC8015 (1.2311, P20) (DH102) 75 ≦0.10 5~10 5,460 1,580 80 ≦0.10 6~12 4,580 1,980 30-36HRC 100 ≦0.10 5~8 4,740 1,190 110 ≦0.10 6~10 3,960 1,500 ~50 ≦0,12 5~10 6,360 1,530 ~60 ≦0,12 6~12 5,300 1,910 Mold steel DH102 (1.2311P21) (JC8015) 75 ≦0.10 5~10 4,800 920 80 ≦0.10 6~12 3,980 1,150 38-43HRC 100 ≦0.10 5~8 4,140 700 110 ≦0.10 6~10 3,450 870 Hardened ~50 ≦0.10 5~10 3,840 770 ~60 ≦0.10 6~12 3,180 960 die steel DH102 (1.2344,1.2379) (JC8015) 75 ≦0.08 5~10 2,880 460 80 ≦0.08 6~12 2,380 570 42-52HRC 100 – – – – 110 – – – – ~50 ≦0.10 5~10 2,220 350 ~60 ≦0.10 6~12 1,860 450 Hardened die steel (1.2344, 1.2379) DH102 75 ≦0.08 5~10 1,680 210 80 ≦0.08 6~12 1,400 270 55-62HRC 100 – – – – 110 – – – – Grey & Nodular ~50 ≦0.15 5~10 6,360 1,910 ~60 ≦0.15 6~12 5,300 2,380 cast iron JC8015 75 ≦0.12 5~10 4,800 1,150 80 ≦0.12 6~12 3,980 1,430 (GG, GGG) (DH102) Below 300HB 100 ≦0.10 5~8 4,140 810 110 ≦0.10 6~10 3,450 1,010 ~50 ≦0.12 5~10 7,320 2,640 ~60 ≦0.12 6~12 6,100 3,290 Stainless steel JC8015 Below250HB (DH102) 75 ≦0.10 5~10 5,460 1,580 80 ≦0.10 6~12 4,580 1,980 100 ≦0.10 5~8 4,740 1,190 110 ≦0.10 6~10 3,960 1,500 ~50 ≦0.12 5~10 1,560 370 ~60 ≦0.12 6~12 1,330 480 Titanium alloy JC8015 (Ti-6Al-4V) (DH102) 75 ≦0.10 5~10 1,200 230 80 ≦0.10 6~12 1,000 290 100 ≦0.10 5~8 1,020 170 110 ≦0.10 6~10 860 220 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. B104 4) Use air blow to flush the chips out.