DiaTiger® CVD Diamond
DiaTiger® CVD Diamond Coating is Produced
CVD Diamond (RFQ)
DiaTiger® CVD diamond coating takes place
in a vacuum chamber using a hot-filament, chemical vapor deposition
(CVD) process. Carbon gases are introduced into the vacuum chamber
where high temperatures cause carbon atoms to re-bond into a
100% pure crystalline diamond structure. The crystalline diamond
slowly grows on the surface of cutting tools, forming a continuous
coating of up to 20 microns in thickness.
The high temperatures associated with coating limit the material
that can be coated to solid tungsten carbide. Brazed carbide
tools and tools made of HSS cannot be coated.
DiaTiger® CVD diamond coating mechanically bonds to the
carbide substrate by anchoring into microscopic pores on the
surface of the tool. The microscopic pores are created at DTC
prior to coating by removing small amounts of cobalt from the
tungsten carbide surface in a controlled treatment process.
Selecting a grade of tungsten carbide is critical to ensuring
the quality of the coating and performance of the coated tool.
DTC has extensive experience working with a variety of carbide
grades to achieve excellent adhesion of DiaTiger® CVD diamond
coating. Please contact
us for a list of carbide grades we recommend.