cutting tool
The cutter materials and their contrast | |||||||||
material | Mono Diamond | CO PCD | si PCD | PCBN | Si3N4 | SiC | WC | Steel | |
properties | |||||||||
Density | g/cm3 | 3.52 | 3.8~4.10 | 3.4 | 4~4.20 | 3.2 | 3 | 15 | 7.8 |
Knoop Hadrness | kg/mm2 | 6000~9000 | 5000~8000 | 5000 | 2700~3200 | 1800 | 2200 | 1500 | 560 |
Toughuess | Mpam-2 | 3.4 | 6.1~8.9 | 6.9 | 4.1~7.2 | 6.4 | 4 | 11 | 46 |
Compression Strength | Mpa | 2000 | 7700 | 4200 | 3800 | 6800 | 7000 | 5400 | 1850 |
Tensile strength | Mpa | 2600 | 1300 | 600 | 500 | 470 | 400 | 1100 | 1760 |
Thermal Expansion | 10-6/°C | 0.8~4.8 | 1.5~3.8 | 3.8 | 3.5~4.2 | 3.5 | 3.8 | 4.3~5.6 | 11.2~14.3 |
Thermal Conductivity | w/mk | 600~1200 | 560 | 120 | 150 | 30 | 40 | 80 | 50 |
Friction | 0.05~0.10 | 0.1 | 0.1 | 0.1 | 0.2 | 0.2 | 0.2 | 0.8 | |