dialong®-G is the ta-C DLC coating deposited at a temperature below 100 °C with a standard thickness of 0.5 µm. Cover coatings dialong®-G has an sp3 percentage (typical of natural diamond) of about 75% and a hardness of about 47 GPa (4800 HV). dialong®-G performs well for tools machining both non-ferrous and wood materials.
Tools with diameters up to 200 mm and lengths up to approx. 500 mm can be coated with dialong®-G.
| VDI abbreviation | ta-C |
| Processus | PVD Arc |
| Structure | Amorphous |
| sp3 fraction [%] | 75 |
| Color | Rainbow |
| Thickness | 0.5 µm |
| Max.operating temperature [°C] | 500 |
| 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 thermal stability up to 500°C: possibility of MQL and dry finishing.
dialong®-G has proven effective on cutting tools for milling, drilling and reaming operations in non-ferrous materials and non-hardwood. Dialong®-G can be used on the following:
- aluminum alloys up to 10% Si
- some composite materials
- PMMA, epoxy resins
- various types of wood
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