Coated cutting tool

Details Coated cutting tool Coated cutting tool

2005-09-06

2005-09-06

Turner, Archene (Department: 1775)

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

C204S192120, C204S192150

Reexamination Certificate

active

06939445

ABSTRACT:
The present invention relates to a cutting tool insert comprising a substrate and a coating including at least one layer of TiB2. The TiB2-layer has a fibrous microstructure where the grains are 5-50 nm, preferably 10-30 nm, in diameter and a length more than 250 mu, preferably more than 400 nm long, with a length to diameter ratio, l/d>2, preferably >5, and oriented essentially perpendicularly to the surface of the substrate.

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R. Wiedemann et al., “Tempering Behaviour of TiB2Coatings”,Surface Engineering, 14 4 (1998), pp. 299-304.
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