
Cutting Tool dia. (mm)
| Work | Insert | Type of | speed | φ16 | φ20 |
| Materials | Grades machining | Vc |
n Vf n Vf
(m/min)
| (min-1) | (mm/min) | (min-1) | (mm/min) | |
| 300 | 5,970 | 2,390 | 4,770 | 1,910 |
Carbon steel
S50C, S55C JC8015 a 0.40 0.50
(C50, C55) p(mm)
Below 250HB a 0.16 0.20
e(mm)
300 5,970 2,390 4,770 1,910
Die steel
SKD61, SKD11 JC8015 a 0.40 0.50
p(mm) (1.2344, 1.2379)
Below 255HB a 0.16 0.20
e(mm)
280 5,570 2,230 4,560 1,820
Stainless steel
SUS304 JC8015 ap(mm) 0.40 0.50
Below 250HB
ae(mm) 0.16 0.20
300 5,970 2,390 4,770 1,910
Mold steel
HPM7, PX5, P20 JC8015 a 0.40 0.50
p(mm) (1.2311, P20) DH102
30-36HRC a 0.16 0.20
e(mm)
280 5,570 1,670 4,560 1,370
Mold steel
NAK80, HPM1, P21 DH102 a 0.40 0.50
p(mm) (1.2311, P21)
38-43HRC a 0.16 0.20
e(mm)
250 4,970 750 3,980 600
Hardened die steel
SKD61, DAC, DHA DH102 a 0.40 0.50
p(mm) (1.2344, 1.2379)
42-52HRC a 0.16 0.20
e(mm)
200 3,980 600 3,180 480
Hardened die steel
SKD11, SLD, DC11 DH102 a 0.40 0.50
p(mm) (1.2344, 1.2379)
55-62HRC a 0.16 0.20
e(mm)
350 6,960 3,480 5,570 3,340
Grey & Nodular cast iron JC8015
ap(mm) 0.40 0.50
FC, FCD (GG, GGG) DH102
Below 300HB a 0.20 0.25
e(mm) ap: Axial depth of cut,ae: Radial depth of cut, n:Spindle speed, Vf: Feed speed
Overhung length Vc Vf
NOTE 3 D cor less
| 2) In case chatter occurrs, recommend to reduce depth of cut or feed speed. | 3Dc~5Dc | 70% | 70% | |
| B174 | 4) Use air blow to flush the chips out. | Over 5D c, up to 10Dc |