About DiaTiger® Diamond
Properties of Diamond
How DTC Produces DiaTiger® Diamond
Tools That Can Be Coated
FAQ's

DiaTiger® Diamond Coating is produced in a vacuum chamber using a hot-filament chemical vapor deposition process (CVD). Carbon containing gases are flowed into the vacuum chamber and the high temperature CVD coating process causes the carbon atoms found in the gas to re-bond in a diamond crystal structure on the tool’s surface to slowly grow a crystalline diamond coating.

The coating process temperature is in the range of 1,500° F (815.5° C) limiting tool material that can be coated to solid tungsten carbide. Brazed carbide tipped tools and tools made of HSS cannot be coated.

DiaTiger® Diamond Coating is mechanically bonded to the tool by the growing diamond crystals that anchor themselves in microscopic pores on the tool’s surface produced from a procedure that is conducted at DTC before coating. This surface treatment procedure removes a small amount of cobalt from the tungsten carbide surface causing a slight surface roughening and creating the microscopic pores for the diamond crystals to anchor themselves.

Selecting a grade of tungsten carbide that is well suited for the surface treatment procedure before coating has an important bearing on efficiency of the procedure and the quality and consistency of the diamond coating adhesion. DTC has much experience with a number of carbide grades that are good choices for achieving excellent adhesion of DiaTiger® Diamond Coating. [ View Recommended Carbide Grades ]