dropless® 5000 is the ta-C DLC coating deposited using Argor-Aljba's patented dropless® technology at a temperature of less than 100 °C with a standard thickness of 0.5 µm. The dropless® 5000 coating has a very high sp3 percentage (typical of natural diamond) of about 85% and a hardness of about 48 GPa (5000 HV).
Characteristics
Advantages
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| VDI abbreviation | ta-C |
| Process | PVD Arc |
| Structure | Amorphous |
| sp3 fraction [%] | 85 |
| Color | Rainbow |
| Thickness | 0.5 µm |
| Max. operating temperature [°C] | 350 |
| Hardness [GPa] | 48 |
| Friction coefficient | 0.1 |
All data given are approximate values, depending on application, environment and test conditions. Coating hardness HIT [GPa] Measured by nano indentation according to ISO 14577. The hardness can be adapted to the application. Coefficient of friction (dry) versus steel determined by dry disc ball test with a steel ball according to ASTM G99. These values may be exceeded during run-in. Maximum service temperature [°C] These are approximate values.
High hardness: protection against abrasive wear, longer tool life, lower production costs.
High thermal stability up to 500 °C: possibility of MQL and dry finishes.
Protection against adhesive wear: longer tool life and better quality of the machined component.
Dropless® deposition technology does not alter surface roughness and, under certain conditions, helps to reduce it. dropless® 5000 lends itself to a wide range of applications:
- cutting tools for turning, milling, drilling, countersinking, reaming of non-ferrous materials
- particularly suitable for micro-tools
- moulds
- watchmaking components
dropless® 5000
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