Method of forming a cutting edge

Details Method of forming a cutting edge Method of forming a cutting edge

1982-03-01

1984-01-31

Parker, Roscoe V.

Metal tools and implements, making

Blank or process

Cutlery

76101R, 172747, B21K 1900, B21K 1100

Patent

active

044282605

ABSTRACT:
A shearbar is formed of a first material. A groove is formed in an upper surface of the bar and is filled with a second material relatively harder than the first material. A side surface is then milled off the bar until the groove is exposed. As a result, a shear edge of the bar is formed of the harder material rather than having only an outer coating of harder material.

REFERENCES:
patent: 1669088 (1928-05-01), Johnson
patent: 1950355 (1934-03-01), DeBats
Sperry-New Holland Brochure No. 31190020-7-81, p. 6, "Self-Propelled Harvesters 1900, 2100".

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