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Application of Diamond-Like Carbon Coatings to Cutting Surfaces of Metal Cutting Tools

Abstract: 

The present invention provides metal working tools with metal working surfaces bearing a coating of diamond-like carbon that is strongly adhered to the surface via the following gradient: metal alloy or cobalt-cemented tungsten carbide base; cobalt or metal-silicide and/or cobalt or metal-germanide; silicon and/or germanium; silicon carbide and/or germanium carbide; and, diamond-like carbon.

Patent Number: 
6,087,025
Date Of Issue: 
07/11/2000
Inventors: 

Geoffrey Dearnaley;James Lankford;James H. Arps