CVD diamond coatings for drill bits and milling cutters

Maximizing the performance of toolings for processing advanced materials

With LEUCO DIACOAT, LEUCO offers the latest generation of a CVD (Chemical Vapor Deposition) diamond coating. It is characterized by extreme hardness, high abrasion resistance and optimized adhesion, which considerably extends the service life of carbide-tipped tools. This coating offers an ideal solution for drill bits, reamers, countersinks and milling cutters used to machine composites particular. The variable coating thickness of 3-17 µm enables precise adaptation to the respective application in order to minimize wear and ensure dimensional accuracy.

DLC coatings
For applications that require tools made of HSS or metal matrix alloys, LEUCO relies on the TOPCOAT 111 coating (USA: LEUCO BX Coating) - a diamond-like carbon coating (DLC). It impresses with its high hardness, low coefficients of friction and excellent sliding properties, which makes it particularly suitable for machining composite materials in combination with non-ferrous metals.

In addition to the coating, tool geometry is also crucial
It influences the cutting behavior, but also how well a coating adheres to the tool. The tool geometry and coating must be precisely matched. LEUCO therefore develops tools that are specially optimized for use on modern CNC machines. Drill reamers with progressive reaming surfaces reduce delamination effects, while faceted drill bits with special point angles minimize cutting pressure. By combining drilling and countersinking steps, boring countersinks ensure a highly efficient machining process.
LEUCO's expertise in research and development results in tools that are perfectly tailored to industrial requirements. Moreover, LEUCO offers several product families that are already available from stock, with coating, as a standard product.