Tooling by DIJET Super Diemaster SDHTYPE ■ RECOMMENDED CUTTING CONDITIONS / HIGH SPEED MACHINING ● SDH type + MSN Carbide Shank Holder Tool dia. (Insert size) Work Insert 20/22 R3.5 25 R3.5 /25 R5 /28 R5 Materials Grades No. of teeth 3N No. of teeth 3N ℓ ap n Vf ℓ ap n Vf (mm) (mm) (min-1) (mm/min) (mm) (mm) (min-1) (mm/min) Carbon steel 70 0.3 5,400 4,800 90 0.3 4,200 3,800 S50C, S55C(C50, C55) 120 0.2 5,100 4,300 140 0.2 4,000 3,400 Below 250HB 160 0.1 4,300 3,600 210 0.1 3,400 2,850 Mold steel 70 0.3 4,300 3,200 90 0.3 3,400 2,500 HPM7, PX5, NAK80,P20 (1.2311, P20) 120 0.2 4,100 2,900 140 0.2 3,200 2,250 30-43HRC JC8015 160 0.1 3,400 2,400 210 0.1 2,700 1,900 Recommended Die steelSKD61, SKD11(1.2344, 1.2379)to use without70chipbreaker1200.30.24,300 3,200 90 0.3 3,400 2,5004,1002,9001400.23,2002,250 Below 255HB 160 0.1 3,400 2,400 210 0.1 2,700 1,900 Stainless steel JC8015 70 0.3 3,600 3,200 90 0.3 2,800 2,500 SUS304 Recommended 120 0.2 3,400 2,900 140 0.2 2,700 2,250 Below 250HB to use withoutchipbreaker160 0.1 2,900 2,400 210 0.1 2,250 1,900 Hardened die steel 70 0.2 4,000 3,000 90 0.2 3,100 2,300 SKD61, DAC, DHA(1.2344, 1.2379)DH103 120 0.12 3,700 2,600 140 0.12 3,000 2,100 40-50HRC 160 0.06 3,200 2,200 210 0.06 2,500 1,700 Grey & Nodular 70 0.3 5,700 5,100 90 0.3 4,500 4,000 cast ironFC, FCD (GG, GGG)DH103 120 0.2 5,100 4,600 140 0.2 4,300 3,600 Below 300HB 160 0.1 4,550 3,800 210 0.1 3,600 3,000 70 1.5 10,100 12,000 90 1.7 8,000 9,600 Aluminium alloy50-110HB FZ05 120 1.2 10,100 12,000 140 1.4 8,000 9,600 160 0.7 8,700 7,800 210 1 6,800 6,100 ℓ: Overhung length, ap: Depth of cut, n: Spindle speed, Vf: Feed speed ※For over 50HRC, recommend to use JC8003 without chipbreaker ■NOTE 1) The cutting parameters to be adjusted according to the machine rigidity o rwork 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. 5) In case of 50-55HRC (Hardened die steel), recommend to reduce ap, n, Vf by 30% on above table. 6) In case of Titanium alloy or Inconel, recommended wet cutting. B121 ℓ : Overhung length