Polycrystalline Synthetic Cutting Materials
CVD Diamond for Machining
LFCT is a synthetic diamond film specially modified for use in cutting tools with a geometrically defined cutting edge. The CVD process produces free-standing, polycrystalline “wafers” with a 99.9 % diamond content.
For use in cutting tools, the raw plates are ground and polished on the fine substrate side (Ra ≤ 30 nm). Cutting to the desired geometric shapes (rounds, triangles, rectangular shapes) and drawing-specific dimensions is carried out thermally by laser processing.
Like our “Premium CVD” for dressing purposes (LCDF), the LFCT exhibits transparency. This results from the very low proportion of graphitic carbon bonds in the crystal lattice and demonstrates the high quality of the diamond film.
Benefits of LFCT
- Excellent hardness and wear resistance
- Very high thermal conductivity (corresponds to that of natural diamond)
- Very low coefficient of friction on the polished cutting edge
- Chemically inert to solvents or coolants
Polycrystalline Synthetic Cutting Materials
Data & facts
| Square LFCT base plate | 26x26 mm |
| Standard thicknesses [mm] | 0,3 / 0,5 / 0,8 / 1,0 |
| Tolerance thickness [mm] | +/- 0,03 |
| Substrate side polished | growth side lapped on request |
| Chemical composition | 100% carbon |
| Chemical resistance | chemically inert |
| Density [g/cm³] | 3,515 |
| Vickers hardness [kg/mm²] | 8000 |
| Thermal stability | 800° C |
| Thermal conductivity [W/mK] | > 800 |
| Electrical conductivity | non-conductive |
Other thicknesses on request.
On request, we can supply customised laser-cut tips.