
■ RECOMMENDED CUTTING CONDITIONS
| 16/1 | 7 | Tool | dia. 20 | (mm) | 20/ | 21 | ||||||||||
| Work Materials | Insert Grades | No.o | f teet | h2N | No.o | f teet | h3N | No. | of te | eth4N | ||||||
| ℓ (mm) | ap (mm) | ae (mm) | n (min-1) | Vf (mm/min) | ℓ (mm) | ap (mm) | ae (mm | ) n (min-1) | Vf (mm/min) | ℓ (mm) | ap (mm) | ae (mm | ) n (min-1) | Vf (mm/min) | ||
| Carbon steel | JC7560 | ~70 | 0.6 | ~10 | 3,600 | 4,900 | ~70 | 0.6 | ~14 | 2,850 | 5,800 | ~70 | 0.6 | ~14 | 2,850 | 7,700 |
| S50C, S55C (C50,C55) | (JC8050) (JC5118) | 120 | 0.5 | ~10 | 3,600 | 4,500 | 120 | 0.5 | ~14 | 2,850 | 5,300 | 120 | 0.5 | ~14 | 2,850 | 7,000 |
| Below 250HB | (JC8118) | 160 | 0.35 | ~10 | 3,000 | 4,200 | 190 | 0.35 | ~14 | 2,400 | 4,900 | 190 | 0.35 | ~14 | 2,400 | 6,500 |
| Die steel | JC7560 | ~70 | 0.6 | ~10 | 3,600 | 4,900 | ~70 | 0.6 | ~14 | 2,850 | 5,800 | ~70 | 0.6 | ~14 | 2,850 | 7,700 |
| SKD61, SKD11 (1.2344,1.2379) | (JC8050) (JC5118) | 120 | 0.5 | ~10 | 3,600 | 4,500 | 120 | 0.5 | ~14 | 2,850 | 5,300 | 120 | 0.5 | ~14 | 2,850 | 7,000 |
| Below 255HB | (JC8118) | 160 | 0.35 | ~10 | 3,000 | 4,200 | 190 | 0.35 | ~14 | 2,400 | 4,900 | 190 | 0.35 | ~14 | 2,400 | 6,500 |
| Mold steel | JC7560 | ~70 | 0.6 | ~10 | 3,600 | 4,900 | ~70 | 0.6 | ~14 | 2,850 | 5,800 | ~70 | 0.6 | ~14 | 2,850 | 7,700 |
| HPM7, PX5, P20 (1.2311, P20) | (JC8050) (JC5118) | 120 | 0.5 | ~10 | 3,600 | 4,500 | 120 | 0.5 | ~14 | 2,850 | 5,300 | 120 | 0.5 | ~14 | 2,850 | 7,000 |
| 30-36 HRC | (JC8118) | 160 | 0.35 | ~10 | 3,000 | 4,200 | 190 | 0.35 | ~14 | 2,400 | 4,900 | 190 | 0.35 | ~14 | 2,400 | 6,500 |
| Mold steel | JC8050 | ~70 | 0.5 | ~10 | 1,900 | 2,600 | ~70 | 0.5 | ~14 | 1,500 | 3,050 | ~70 | 0.5 | ~14 | 1,500 | 4,050 |
| NAK80, HPM1, P21 (12311P21) | (JC5118) | 120 | 0.3 | ~10 | 1,900 | 2,400 | 120 | 0.3 | ~14 | 1,500 | 2,800 | 120 | 0.3 | ~14 | 1,500 | 3,700 |
| ., 38-43HRC | (JC8118) | 160 | 0.2 | ~10 | 1,600 | 2,200 | 190 | 0.2 | ~14 | 1,250 | 2,600 | 190 | 0.2 | ~14 | 1,250 | 3,400 |
| Hardened die steel | JC8118 | ~70 | 0.4 | ~10 | 1,400 | 1,400 | ~70 | 0.4 | ~14 | 1,100 | 1,650 | ~70 | 0.4 | ~14 | 1,100 | 2,200 |
| SKD61, DAC, DHA (1.23441.2379) | JC5118 | 120 | 0.3 | ~10 | 1,400 | 1,400 | 120 | 0.3 | ~14 | 1,100 | 1,650 | 120 | 0.3 | ~14 | 1,100 | 2,200 |
| , 42-52HRC | (JC8050) | 160 | – | – | – | – | 190 | – | – | – | – | 190 | – | – | – | – |
| Hardened die steel | JC8118 | ~70 | 0.15 | ~10 | 600 | 180 | ~70 | 0.15 | ~14 | 500 | 230 | ~70 | 0.15 | ~14 | 500 | 300 |
| SKD11, SLD, DC11 (1.2344, 1.2379) | C5118 | 120 | 0.1 | ~10 | 600 | 180 | 120 | 0.1 | ~14 | 500 | 230 | 120 | 0.1 | ~14 | 500 | 300 |
| 55-62HRC | EPMWtype | 160 | – | – | – | – | 190 | – | – | – | – | 190 | – | – | – | – |
| Grey & Nodular | ~70 | 0.8 | ~10 | 3,000 | 5,000 | ~70 | 0.8 | ~14 | 2,400 | 6,000 | ~70 | 0.8 | ~14 | 2,400 | 8,000 | |
| cast iron FC, FCD | JC8118 JC5118 | 120 | 0.6 | ~10 | 3,000 | 4,500 | 120 | 0.6 | ~14 | 2,400 | 5,400 | 120 | 0.6 | ~14 | 2,400 | 7,200 |
| (GG,GGG) Below 300HB | (JC7560) | 160 | 0.5 | ~10 | 2,200 | 3,750 | 190 | 0.5 | ~14 | 1,750 | 4,500 | 190 | 0.5 | ~14 | 1,750 | 6,000 |
| Stainless steel | ~70 | 0.6 | ~10 | 3,100 | 4,200 | ~70 | 0.6 | ~14 | 2,500 | 5,100 | ~70 | 0.6 | ~14 | 2,500 | 6,800 | |
| SUS304 | JC7560 (JC8050) | 120 | 0.5 | ~10 | 3,000 | 4,000 | 120 | 0.5 | ~14 | 2,400 | 4,900 | 120 | 0.5 | ~14 | 2,400 | 6,500 |
| Below 250HB | 160 | 0.35 | ~10 | 3,000 | 4,000 | 190 | 0.35 | ~14 | 2,400 | 4,900 | 190 | 0.35 | ~14 | 2,400 | 6,500 | |
| JC7560 | ~70 | 0.5 | ~10 | 1,200 | 960 | ~70 | 0.5 | ~14 | 950 | 1,140 | ~70 | 0.5 | ~14 | 950 | 1,500 | |
| Titanium alloy (Ti-6Al-4V) | (JC5118) (JC8050) | 120 | 0.3 | ~10 | 1,200 | 960 | 120 | 0.3 | ~14 | 950 | 1,140 | 120 | 0.3 | ~14 | 950 | 1,500 |
| (JC8118) | 160 | 0.2 | ~10 | 1,200 | 960 | 190 | 0.2 | ~14 | 950 | 1,140 | 190 | 0.2 | ~14 | 950 | 1,500 | |
| JC8118 | ~70 | 0.5 | ~10 | 630 | 380 | ~70 | 0.5 | ~14 | 500 | 450 | ~70 | 0.5 | ~14 | 500 | 600 | |
| Inconel (INCO718) | JC5118 (JC8050) | 120 | 0.3 | ~10 | 630 | 380 | 120 | 0.3 | ~14 | 500 | 450 | 120 | 0.3 | ~14 | 500 | 600 |
| (JC7560) | 160 | 0.2 | ~10 | 630 | 380 | 190 | 0.2 | ~14 | 500 | 450 | 190 | 0.2 | ~14 | 500 | 600 |
ℓ: Overhung length, ap: Axial depth of cut, ae: Radial depth of cut, n: Spindle speed, Vf: Feed speed
feed speed. B033