Method of making knife with cutting performance

Details Method of making knife with cutting performance Method of making knife with cutting performance

1996-01-11

1998-03-10

Watts, Douglas D.

Metal tools and implements, making

Blank or process

Cutlery

76DIG6, 30350, 2041923, C23C 1422

Patent

active

057248680

ABSTRACT:
A coating material such a TiN, Ti(CN), or (TiAl)N is deposited onto the blade edge region of a steel knife blade blank by a cathodic arc process using linear deposition sources with simultaneous heating and rotation of the blade blank relative to the deposition sources. The blade edge region may be sharpened or unsharpened prior to deposition of the coating material. If the blade edge region is unsharpened prior to deposition, it is thereafter sharpened, preferably on one side only.

REFERENCES:
patent: 3988955 (1976-11-01), Engke et al.
patent: 4653373 (1987-03-01), Gerber
patent: 4933058 (1990-06-01), Bache et al.
patent: 5232568 (1993-08-01), Parent et al.
patent: 5431071 (1995-07-01), Williams
Herbert M. Gabriel, "Vacuum Arc Discharges Used to Deposit hard Wear Resistant Coatings onto Tools", IEEE Trans. on Plasma Science, vol. 21, No. 5 (Oct. 1993).
Declaration of Nathan K. Meckel and attached Press Release of Molecular Metallurgy, Inc., dated on its face Jan. 1995.

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