Общий каталог Dijet 2018 - страница 192

Modular Head Series Tooling by DIJET Mirror Radius MRXTYPE ■ RECOMMENDED CUTTING CONDITIONS / BOTTOM FACE FINISHING ● MRX type with FRM insert ＋ MSN Carbide Shank Holder Cutting Tool dia. (mm) Work Insert Type of speed φ10 φ12 φ16 φ20 Materials Grades machining Vc(m/min) n Vf(min-1)(mm/min)n Vf(min-1)(mm/min)n Vf(min-1)(mm/min)n Vf(min-1)(mm/min) Carbon steel 260 8,280 2,480 6,900 2,070 5,170 2,070 4,140 1,660 S50C, S55C(C50, C55)JC8015 ap(mm) 0.15 0.20 0.20 0.20 Below 250HB ae(mm) 1.2 1.5 2.0 2.5 Die steel 260 8,280 2,480 6,900 2,070 5,170 2,070 4,140 1,660 SKD61, SKD11(1.2344, 1.2379)JC8015 ap(mm) 0.15 0.20 0.20 0.20 Below 255HB ae(mm) 1.2 1.5 2.0 2.5 240 7,640 2,290 6,360 1,900 4,770 1,910 3,810 1,520 Stainless steel SUS304 JC8015 ap(mm) 0.15 0.20 0.20 0.20 Below 250HB ae(mm) 1.2 1.5 2.0 2.5 Mold steel 260 8,280 2,480 6,900 2,060 5,170 2,070 4,140 1,660 HPM7, PX5, P20 JC8015(1.2311, P20)DH102ap(mm) 0.15 0.20 0.20 0.20 30-36HRC ae(mm) 1.2 1.5 2.0 2.5 Mold steel 240 7,640 2,290 6,360 1,900 4,770 1,430 3,810 1,140 NAK80, HPM1, P21(1.2311, P21)DH102 ap(mm) 0.15 0.20 0.20 0.20 38-43HRC ae(mm) 1.2 1.5 2.0 2.5 Hardened die steel 190 6,050 610 5,040 600 3,780 570 3,020 450 SKD61, DAC, DHA(1.2344, 1.2379)DH102 ap(mm) 0.10 0.15 0.15 0.15 42-52HRC ae(mm) 0.90 1.1 1.4 1.8 Hardened dies teel 130 4,140 410 3,450 410 2,590 390 2,070 310 SKD11, SLD, DC11(1.2344, 1.2379)DH102 ap(mm) 0.10 0.15 0.15 0.15 55-62HRC ae(mm) 0.90 1.0 1.2 1.5 Grey & Nodular 300 9,450 3,310 7,960 3,180 5,970 2,390 4,770 1,910 cast iron JC8015FC, FCD (GG, GGG)DH102ap(mm) 0.15 0.20 0.20 0.20 Below 300HB ae(mm) 1.5 1.8 2.4 3.0 ap: Depth of cut, ae: Pick feed, n: Spindle speed, Vf: Feed speed Overhung length Vc Vf ■NOTE L/Dc (m/min) (mm/min) 1) The cutting parameters to be adjusted according to the machine rigidity or work ~3Dc 100% 100%3Dc or less rigidity. 2) In case chatter occurrs, recommend to reduce depth of cut or feed speed. 3Dc~5Dc 70% 70% 3) In case of overhung lengt hover 3 x Dc, cuting speed and feed speed to be Over 3Dc, up to 5Dc reduced according to the right table.B1764)Use air blow to flush the chips out. 5Dc~10Dc 50% 50%Over 5Dc, up to 10Dc