Metal tools and implements – making – Blank or process
Patent
1979-10-22
1981-05-12
Parker, Roscoe V.
Metal tools and implements, making
Blank or process
76101B, 164 46, 407119, B21K 504
Patent
active
042664497
ABSTRACT:
A method for making a cutting tool such as a tap, reamer or the like, in which the entire surface of a soft high speed steel blank is coated with a formation of titanium nitride, heat treated, and then finish ground by conventional means to define the cutting edges.
REFERENCES:
patent: 2537818 (1951-01-01), Evans
patent: 3564683 (1971-02-01), Schedler et al.
patent: 3882579 (1975-05-01), Peacock
Chandler Charles W.
Parker Roscoe V.
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