Self-sharpening cutting tool with hard coating

Details Self-sharpening cutting tool with hard coating Self-sharpening cutting tool with hard coating

2007-01-23

2007-01-23

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Composite

Of inorganic material

C427S402000, C427S419100, C427S419700, C428S212000, C428S217000, C428S336000

Reexamination Certificate

active

10509109

ABSTRACT:
There is disclosed a cutting tool having a blade coated on one side with a hard coating living a laminar or layered microstructure. The coating tends to wear evenly and smoothly, thereby keeping a cutting edge of the cutting tool smooth. Furthermore, by coating the cutting edge on one side only, the cutting edge becomes self-sharpening. The coating preferably includes at least one layer made of tungsten carbides substantially or entirely free of metallic tungsten.

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