Общий каталог Dijet 2018 - страница 424

Tooling by DIJET Indexable Tools Mirror Radius FRMTyPE ■ RECOMMENDED CUTTING CONDITIONS / BOTTOM FACE FINISHING ● FRM type insert + Carbide shank holder (C-Body) Cutting Tool dia. (mm) Work Insert Type of speed φ16 φ20 φ21 Materials Grades machining Vc (m/min) n -1 Vf n -1 Vf n -1 Vf (min ) (mm/min) (min ) (mm/min) (min ) (mm/min) Carbon steel 260 5,170 2,070 4,140 1,660 3,940 1,570 S50C, S55C JC8015 (C50, C55) ap (mm) 0.20 0.20 0.20 Below 250HB ae (mm) 2.0 2.5 2.5 Die steel 260 5,170 2,070 4,140 1,660 3,940 1,570 SKD61, SKD11 JC8015 (1.2344, 1.2379) ap (mm) 0.20 0.20 0.20 Below 255HB ae (mm) 2.0 2.5 2.5 240 4,770 1,910 3,810 1,520 3,640 1,450 Stainless steel SUS304 JC8015 Below 250HB ap (mm) 0.20 0.20 0.20 ae (mm) 2.0 2.5 2.5 Mold steel 260 5,170 2,070 4,140 1,660 3,940 1,570 HPM7, PX5, P20 JC8015 (1.2311, P20) DH102 ap (mm) 0.20 0.20 0.20 30-36HRC ae (mm) 2.0 2.5 2.5 Mold steel 240 4,770 1,430 3,810 1,140 3,640 1,090 NAK80, HPM1, P21 DH102 (1.2311, P21) ap (mm) 0.20 0.20 0.20 38-43HRC ae (mm) 2.0 2.5 2.5 Hardened die steel 190 3,780 570 3,020 450 2,880 430 SKD61, DAC, DHA DH102 (1.2344, 1.2379) ap (mm) 0.15 0.15 0.15 42-52HRC ae (mm) 1.4 1.8 1.8 Hardened die steel 130 2,590 390 2,070 310 1,970 290 SKD11, SLD, DC11 DH102 (1.2344, 1.2379) ap (mm) 0.15 0.15 0.15 55-62HRC ae (mm) 1.2 1.5 1.5 Grey & Nodular 300 5,970 2,390 4,770 1,910 4,550 1,820 cast iron JC8015 FC, FCD (GG, GGG) DH102 ap (mm) 0.20 0.20 0.20 Below 300HB ae (mm) 2.4 3.0 3.0 ℓ: Overhung length, ap: Depth of cut, ae: Pick feed, Vc: Cutting speed, n: Spindle speed, Vf: Feed speed ■ NOTE Overhung length Vc Vf ℓ/Dc (m/min) (mm/min) 1) The cutting parameters to be adjusted according to the machine rigidity or work rigidity. ~3Dc 100% 100% 3Dc or less 2) In case chatter occurrs, recommend to reduce depth of cut or feed speed. 3Dc~5Dc 70% 70% 3) In case of overhung length over 3 x Dc, cutting speed and feed speed to Over 3Dc, up to 5Dc be reduced according to the right table. 5Dc~10Dc 50% 50% C212 4) Use air blow to flash out the chips out. Over 5Dc, up to 10Dc