Fused Salt Electrodeposited TiB2 Coatings on High-Speed Steel Twist Drills

摘要

Tool life tests were conducted on high speed steel twist drills coated with Titanium Diboride by the fused salt electrodeposition process. Test results are presented and mechanisms of tool failure are discussed. Modifications to the fused salt electrodeposition process and the character of TiB2 coatings are recommanded for cutting tools and other applications. The cutting tool industry has traditionally sought to extend the life of tools through the use of surface treatments. For example, Titanium Nitride coatings, applied to tooling by the chemical vapor deposition and physical vapor deposition processes are widely used in the aircraft and automative industries to improve tool life by providing more wear resistant surfaces, as well as chemical and thermal barriers to diffusion.