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Rollomatic Introduces Capability in Sharpening of Diamond Coated Carbide Tools

Diamond-coated carbide cutting tools are used to machine highly abrasive materials, as the coating properties can significantly increase tool life relative to uncoated carbide tools. The drawback of diamond coating is that thick-film coating makes the cutting edge dull, and thin‐film coatings often wear prematurely.

Rollomatic has developed an alternative process that allows sharpening of thick‐film diamond coated cutting tools. The Rollomatic CNC Laser Cutting Machine LaserSmart incorporates technologies that facilitate probing the surface of the coated cutting edge to detect the exact shape and position. Then, the laser cutting process removes just enough diamond coating to make the cutting edge sharp. Only a predetermined amount of the coating 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. Such cutting tools can offer a cost‐effective alternative to more expensive (Poly-Crystalline Diamond) PCD tools, with features like:

  • Significant increase in tool life
  • Near‐perfect total indicator runout
  • Fast cycle time
  • Simulation of the tool path after edge detection
  • Same machine can laser cut PCD and other super‐hard materials

Rollomatic produces high-performance CNC tool & cutter, cylindrical grinding and laser cutting machines. The company provides application solutions for the precision manufacturing of medical drills, burs, taps, reamers, shavers and other orthopedic and cranial cutting tools.