Amorphous carbon coated tools and method of producing the same

Details Amorphous carbon coated tools and method of producing the same Amorphous carbon coated tools and method of producing the same

2005-11-08

2005-11-08

Turner, Archene (Department: 1775)

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

C051S307000, C051S309000, C407S119000, C428S212000, C428S216000, C428S156000, C428S174000, C428S325000, C428S698000

Reexamination Certificate

active

06962751

ABSTRACT:
Amorphous carbon coated tools include substrates formed from a cubic boron nitride sintered body, a diamond sintered body, a silicon nitride sintered body, or an aluminum oxide-titanium carbide sintered body, and amorphous carbon films thereon to make the cutting edges of the tools. The amorphous carbon films contain hydrogen at 5 atomic percent or below and have a maximum thickness of 0.05 μm to 0.5 μm on the cutting edges. The amorphous carbon films are most suitable for applications to cutting tools exemplified by cutters, knives, and slitters, and to indexable inserts used for example in turning tools including drills, endmills, and reamers, and milling cutters.

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