Sharpening diamond-coated cutting tools
- May 3, 2020
Diamond coated carbide cutting tools are a great option when machining highly abrasive materials, as the coating properties help to significantly increase tool life relative to uncoated carbide tools. The drawback of diamond coating is the fact that a thick film coating makes the cutting edge dull and thin‐film coatings wear prematurely.
The machine tool manufacturer’s LaserSmart 510 laser cutting and ablation machine incorporates technologies that probe the surface of diamond coated cutting edges to detect the exact shape and position. Then the laser cutting process will remove just enough diamond coating to make the cutting edge sharp. Only a predetermined amount of the coating, just around the cutting edge, is removed by the laser process.
In‐field tests have demonstrated that the tool life can increase significantly with a sharpened thick‐film coated tool compared to a conventional diamond coated cutting tool.