Общий каталог Dijet 2018 - страница 260

Tooling by DIJET Indexable Tools High Feed Diemaster SKSTyPE ■ RECOMMENDED CUTTING CONDITIONS ● END MILL TYPE Tool dia. (mm) 32 32 Work Insert Materials Grades No. of teeth 2N No. of teeth 3N ℓ ap n -1 Vf ℓ ap n Vf (mm) (mm) (min ) (mm/min) (mm) (mm) (min-1) (mm/min) Carbon steel JC7560 70 0.8 1,800 3,600 70 0.7 1,800 4,300 S55C, S50C (C50, C55) (JC5040) 120 0.6 1,000 3,000 120 0.5 1,500 3,600 Below 250HB (JC8050) 220 0.4 500 2,000 220 0.3 900 2,160 Mold steel JC5118 70 0.8 1,800 3,600 70 0.7 1,800 4,300 HPM7, PX5, NAK80, P20 (JC7560) 120 0.6 1,000 3,000 120 0.5 1,500 3,600 (1.2311, P20) (Below36HRC) 30-43HRC 220 0.3 500 2,000 220 0.3 900 2,160 Die steel JC7560 70 0.8 1,800 3,600 70 0.7 1,800 4,300 SKD61, SKD11 (1.2344, 1.2379) (JC5040) 120 0.6 1,000 3,000 120 0.5 1,500 3,600 Below 255HB (JC8050) 220 0.3 500 2,000 220 0.3 900 2,160 Stainless steel JC7560 70 0.8 1,500 3,600 70 0.7 1,500 4,000 SUS304 (JC5118) 120 0.6 1,250 3,000 120 0.5 1,250 3,400 Below 250HB (JC8050) 220 0.3 600 1,800 220 0.3 600 1,800 Hardened die steel 70 0.8 800 1,300 70 0.6 800 1,680 SKD61, DAC, DHA JC5118 (1.23441, 1.2379) JC8015 120 0.6 700 1,100 120 0.4 700 1,260 40-50HRC 220 0.3 500 800 220 0.2 500 900 Grey & Nodular 70 1.2 1,300 3,900 70 1.0 1,300 4,300 cast iron JC5118 FC, FCD JC8015 120 1 1,100 3,300 120 0.8 1,100 3,600 (GG,GGG) (JC7560) Below 300HB 220 0.6 900 2,200 220 0.5 900 2,500 ℓ: Overhung length, ap: 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. (In case of BT40 or below, recommend to use tool dia. below φ33) 2) In case of chatter occurrs, recommend to reduce depth of cut or spindle speed with keeping feed per tooth. 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 30% above ap, n, Vf. ℓ: Overhung length 6) In case of unfavourable conditions, insert grade JC8050 is recommended. C048