Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS / BOTTOM FACE FINISHING ● MPM type (YOHW type insert) + MSN Carbide Shank Holder Tool dia. (mm) 16/17 20/21 Material Grades No. of teeth 4N No. of teeth 5N 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) ~80 ≦0,12 8~16 4,980 3,980 ~100 ≦0,12 10~20 3,960 3,980 Carbon steel JC8015 (C50, C55) (DH102) 120 ≦0.10 8~16 3,740 2,380 150 ≦0.10 10~20 2,970 2,380 Below 250HB 160 ≦0.10 8~13 3,240 1,800 190 ≦0.10 10~16 2,550 1,800 ~80 ≦0,12 8~16 4,580 3,290 ~100 ≦0,12 10~20 3,660 3,290 Die steel JC8015 (1.2344, 1.2379) (DH102) 120 ≦0.10 8~16 3,440 1,980 150 ≦0.10 10~20 2,730 1,980 Below 255HB 160 ≦0.10 8~13 2,880 1,500 190 ≦0.10 10~16 2,370 1,500 ~80 ≦0,12 8~16 4,480 3,290 ~100 ≦0,12 10~20 3,660 3,290 Mold steel JC8015 (1.2311, P20) (DH102) 120 ≦0.10 8~16 3,440 1,980 150 ≦0.10 10~20 2,730 1,980 30-36HRC 160 ≦0.10 8~13 2,980 1,500 190 ≦0.10 10~16 2,370 1,500 ~80 ≦0,12 8~16 3,980 1,910 ~100 ≦0,12 10~20 3,180 1,910 Mold steel DH102 (1.2311P21) (JC8015) 120 ≦0.10 8~16 2,980 1,150 150 ≦0.10 10~20 2,400 1,150 38-43HRC 160 ≦0.10 8~13 2,580 870 190 ≦0.10 10~16 2,070 870 Hardened ~80 ≦0.10 8~16 2,380 960 ~100 ≦0.10 10~20 1,920 960 die steel DH102 (1.2344,1.2379) (JC8015) 120 ≦0.08 8~16 1,780 570 150 ≦0.08 10~20 1,440 570 42-52HRC 160 – – – – 190 – – – – ~80 ≦0.10 8~16 1,400 450 ~100 ≦0.10 10~20 1,110 450 Hardened die steel (1.2344, 1.2379) DH102 120 ≦0.08 8~16 1,040 270 150 ≦0.08 10~20 840 270 55-62HRC 160 – – – – 190 – – – – Grey & Nodular ~80 ≦0.15 8~16 3,980 2,380 ~100 ≦0.15 10~20 3,180 2,380 cast iron JC8015 120 ≦0.12 8~16 2,980 1,430 150 ≦0.12 10~20 2,400 1,430 (GG, GGG) (DH102) Below 300HB 160 ≦0.10 8~13 2,580 1,010 190 ≦0.10 10~16 2,070 1,010 ~80 ≦0.12 8~16 4,580 3,290 ~100 ≦0.12 10~20 3,660 3,290 Stainless steel JC8015 Below250HB (DH102) 120 ≦0.10 8~16 3,440 1,980 150 ≦0.10 10~20 2,730 1,980 160 ≦0.10 8~13 2,980 1,500 190 ≦0.10 10~16 2,370 1,500 ~80 ≦0.12 8~16 1,000 480 ~100 ≦0.12 10~20 780 480 Titanium alloy JC8015 (Ti-6Al-4V) (DH102) 120 ≦0.10 8~16 740 290 150 ≦0.10 10~20 600 290 160 ≦0.10 8~13 640 220 190 ≦0.10 10~16 510 220 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. 4) Use air blow to flush the chips out. B105