
■ RECOMMENDED CUTTING CONDITIONS
| Tool dia | . (mm) | ||||||||||
| Work | Insert | 40/42 | 40 | ||||||||
| Materials | Grades | No. | of teeth | 6N | No. | oft eeth | 7N | ||||
| ℓ (mm) | ap (mm) | ae (mm) | n (min-1) | Vf (mm/min) | ℓ (mm) | ap (mm) | ae (mm) | n (min-1) | Vf (mm/min) | ||
| Carbonsteel | JC7560 | ~100 | 0.8 | ~32 | 1,500 | 6,300 | ~100 | 0.8 | ~32 | 1,500 | 7,500 |
| S50C, S55C (C50,C55) | (JC8050) (JC5118) | 150 | 0.6 | ~32 | 1,400 | 5,900 | 150 | 0.6 | ~32 | 1,400 | 7,000 |
| Below 250HB | (JC8118) | 210 | 0.4 | ~32 | 1,200 | 5,000 | 210 | 0.4 | ~32 | 1,200 | 6,000 |
| Die steel | JC7560 | ~100 | 0.8 | ~32 | 1,500 | 6,300 | ~100 | 0.8 | ~32 | 1,500 | 7,500 |
| SKD61, SKD11 (1234412379) | (JC8050) (JC5118) | 150 | 0.6 | ~32 | 1,400 | 5,900 | 150 | 0.6 | ~32 | 1,400 | 7,000 |
| .,. Below 255HB | (JC8118) | 210 | 0.4 | ~32 | 1,200 | 5,000 | 210 | 0.4 | ~32 | 1,200 | 6,000 |
| Mold steel | JC7560 | ~100 | 0.8 | ~32 | 1,500 | 6,300 | ~100 | 0.8 | ~32 | 1,500 | 7,500 |
| HPM7, PX5, P20 (1.2311, P20) | (JC8050) (JC5118) | 150 | 0.6 | ~32 | 1,400 | 5,900 | 150 | 0.6 | ~32 | 1,400 | 7,000 |
| 30-36HRC | (JC8118) | 210 | 0.4 | ~32 | 1,200 | 5,000 | 210 | 0.4 | ~32 | 1,200 | 6,000 |
| Mold steel | JC8050 | ~100 | 0.6 | ~32 | 750 | 3,000 | ~100 | 0.6 | ~32 | 750 | 3,500 |
| NAK80, HPM1, P21 (1.2311, P21) | (JC5118) | 150 | 0.4 | ~32 | 750 | 3,000 | 150 | 0.4 | ~32 | 750 | 3,500 |
| 38-43HRC | (JC8118) | 210 | 0.3 | ~32 | 620 | 2,500 | 210 | 0.3 | ~32 | 620 | 2,900 |
| Hardened die steel | JC8118 | ~100 | 0.4 | ~32 | 550 | 1,650 | ~100 | 0.4 | ~32 | 550 | 1,900 |
| SKD61, DAC, DHA (1.2344,1.2379) | JC5118 | 150 | 0.3 | ~32 | 550 | 1,650 | 150 | 0.3 | ~32 | 550 | 1,900 |
| 42-52HRC | (JC8050) | 210 | — | — | — | — | 210 | — | — | — | — |
| Hardened die steel | JC8118 | ~100 | 0.15 | ~32 | 250 | 240 | ~100 | 0.15 | ~32 | 250 | 280 |
| SKD11, SLD, DC11 (1.2344, 1.2379) | JC5118 | 150 | 0.1 | ~32 | 250 | 240 | 150 | 0.1 | ~32 | 250 | 280 |
| 55-62HRC | EPMWtype | 210 | — | — | — | — | 210 | — | — | — | — |
| Grey & Nodular | JC8118 | ~100 | 1 | ~32 | 1,200 | 6,150 | ~100 | 1 | ~32 | 1,200 | 7,200 |
| cast iron FC FCD (GG GGG) | JC5118 | 150 | 0.8 | ~32 | 1,200 | 5,650 | 150 | 0.8 | ~32 | 1,200 | 6,600 |
| , , Below 300HB | (JC7560) | 210 | 0.6 | ~32 | 1,000 | 4,700 | 210 | 0.6 | ~32 | 1,000 | 5,500 |
| Stinl tl | ~100 | 0.8 | ~32 | 1,350 | 5,850 | ~100 | 0.8 | ~32 | 1,350 | 6,800 | |
| aess see SUS304 | JC7560 (JC8050) | 150 | 0.6 | ~32 | 1,300 | 5,550 | 150 | 0.6 | ~32 | 1,300 | 6,500 |
| Below 250HB | 210 | 0.35 | ~32 | 1,200 | 5,150 | 210 | 0.35 | ~32 | 1,200 | 6,000 | |
| JC7560 | ~100 | 0.5 | ~32 | 480 | 1,150 | ~100 | 0.5 | ~32 | 480 | 1,350 | |
| Titanium alloy (Ti-6Al-4V) | (JC5118) (JC8050) | 150 | 0.3 | ~32 | 480 | 1,150 | 150 | 0.3 | ~32 | 480 | 1,350 |
| (JC8118) | 210 | 0.2 | ~32 | 480 | 1,150 | 210 | 0.2 | ~32 | 480 | 1,350 | |
| JC5118 | ~100 | 0.5 | ~32 | 250 | 450 | ~100 | 0.5 | ~32 | 250 | 520 | |
| Inconel (INCO718) | (JC8050) (JC7560) | 150 | 0.3 | ~32 | 250 | 450 | 150 | 0.3 | ~32 | 250 | 520 |
| (JC8118) | 210 | 0.2 | ~32 | 250 | 450 | 210 | 0.2 | ~32 | 250 | 520 |
ℓ: Overhung length, ap: Axial depth of cut, ae: Radial depth of cut, n: Spindle speed, Vf: Feed speed