Method for coating cutting implements
OwnerLarry Buchtmann, Gary Piainventors
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Abstract
A method for coating a cutting implement. The coating has titanium chromium nitride and provides the cutting blades with a satin silver appearance. In some embodiments, the titanium chromium nitride coating has a thickness in a range between about 0.3 microns and 0.5 microns, a surface roughness in a range of about 15 to 25×10−6 inch/inch, and a hardness in a range of about 5.7 to about 9.1 gigapascals.
Claims20
A method for coating a cutting implement, the process comprising:
- placing a cutting implement within a coating chamber;
- cleaning the cutting implement;
- and
- depositing a coating on the cutting implement, wherein the coating has a range of about 25 to 50 percent by weight titanium nitride and a range of about 50 to 75 percent by weight chromium nitride.
The method of claim 2 wherein the coating is deposited by a process selected from a group consisting of reactive magnetron sputtering, cathode arc plasma process, chemical vapor deposition, physical vapor deposition, thermal spraying, or sintering after a dip coating.
A method for coating a cutting implement, the process comprising:
- placing a cutting implement within a coating chamber;
- cleaning the cutting implement;
- selecting a sputtering current;
- and
- depositing a coating on the cutting implement, wherein the coating has about 35% by weight of titanium nitride and about 65% by weight of chromium nitride
A method for coating a cutting implement, the process comprising:
- placing at least one cutting blade within a coating chamber;
- evacuating the chamber to a predetermined pressure;
- cleaning the blade within the chamber;
- introducing to the chamber a sputtering gas mixture containing argon and nitrogen;
- selecting a sputtering current in the range of 0.5 to 0.7 amperes;
- and
- depositing a coating on the blade, wherein the coating has about 35% by weight of titanium nitride and about 65% by weight of chromium nitride and provides the cutting blade with a satin silver appearance.
Dependencies are inferred from the claim text.