
Tooling by DIJET QM MILL MPMTYPE ■ RECOMMENDED CUTTING CONDITIONS / SIDE 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 ≦1.2 ≦0.10 7,960 4,770 ~100 ≦1.2 ≦0.10 6,300 4,770 Carbon steel CX75 (C50, C55) (JC8015) 120 ≦0.8 ≦0.08 5,560 2,670 150 ≦0.8 ≦0.08 4,410 2,670 Below 250HB (DH102) 160 ≦0.6 ≦0.08 5,560 2,230 190 ≦0.6 ≦0.08 4,410 2,230 ~80 ≦1.0 ≦0.10 7,160 4,300 ~100 ≦1.0 ≦0.10 5,700 4,300 Die steel CX75 (1.2344, 1.2379) (JC8015) 120 ≦0.7 ≦0.08 5,000 2,400 150 ≦0.7 ≦0.08 3,990 2,400 Below 255HB (DH102) 160 ≦0.5 ≦0.08 5,000 2,000 190 ≦0.5 ≦0.08 3,990 2,000 ~80 ≦1.0 ≦0.10 7,160 4,300 ~100 ≦1.0 ≦0.10 5,700 4,300 Mold steel JC8015 (1.2311, P20) (DH102) 120 ≦0.7 ≦0.08 5,000 2,400 150 ≦0.7 ≦0.08 3,990 2,400 30-36HRC 160 ≦0.5 ≦0.08 5,000 2,000 190 ≦0.5 ≦0.08 3,990 2,000 ~80 ≦1.0 ≦0.10 5,560 2,670 ~100 ≦1.0 ≦0.10 4,440 2,670 Mold steel DH102 (1.2311P21) (JC8015) 120 ≦0.7 ≦0.08 3,900 1,580 150 ≦0.7 ≦0.08 3,090 1,560 38-43HRC 160 ≦0.5 ≦0.08 3,900 1,250 190 ≦0.5 ≦0.08 3,090 1,250 Hardened ~80 ≦0.8 ≦0.10 3,980 1,590 ~100 ≦0.8 ≦0.10 3,180 1,590 die steel DH102 (1.2344,1.2379) (JC8015) 120 ≦0.5 ≦0.08 2,780 890 150 ≦0.5 ≦0.08 2,220 890 42-52HRC 160 – – – – 190 – – – – ~80 ≦0.5 ≦0.10 2,980 1,190 ~100 ≦0.5 ≦0.10 2,370 1,190 Hardened die steel (1.2344, 1.2379) DH102 120 ≦0.3 ≦0.08 2,080 670 150 ≦0.3 ≦0.08 1,650 670 55-62HRC 160 – – – – 190 – – – – Grey & Nodular ~80 ≦1.2 ≦0.12 7,960 4,770 ~100 ≦1.2 ≦0.12 6,300 4,770 cast iron JC8015 120 ≦0.8 ≦0.10 5,560 2,670 150 ≦0.8 ≦0.10 4,410 2,670 (GG, GGG) (DH102) Below 300HB 160 ≦0.6 ≦0.08 5,560 2,230 190 ≦0.6 ≦0.08 4,410 2,230 ~80 ≦1.0 ≦0.10 7,160 4,300 ~100 ≦1.0 ≦0.10 5,700 4,300 Stainless steel JC8015 Below250HB (DH102) 120 ≦0.7 ≦0.08 5,000 2,400 150 ≦0.7 ≦0.08 3,990 2,400 160 ≦0.5 ≦0.08 5,000 2,000 190 ≦0.5 ≦0.08 3,990 2,000 ~80 ≦1.0 ≦0.10 1,160 760 ~100 ≦1.0 ≦0.10 1,260 760 Titanium alloy JC8015 (Ti-6Al-4V) (DH102) 120 ≦0.7 ≦0.08 1,120 450 150 ≦0.7 ≦0.08 870 450 160 ≦0.5 ≦0.08 1,120 360 190 ≦0.5 ≦0.08 870 360 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. B102 4) Use air blow to flush the chips out.