Circular saw blade and method for making the same

Details Circular saw blade and method for making the same Circular saw blade and method for making the same

1977-09-28

1979-03-20

Whitehead, Harold D.

Metal tools and implements, making

Blank or process

Saws

B23D 6300

Patent

active

041447778

ABSTRACT:
The circular saw blade of the invention is composed of different materials and consists of three concentric zones, -- an inner zone, intermediate zone and an outer zone, -- welded together. The material of the outer zone is a high-speed steel, the outer and intermediate zones are joined together by, for instance, electron beam welding, while the intermediate and inner zones are joined together by a welding method other than electron beam welding.
The present invention relates to the saw art, and is concerned with the provision of an improved circular saw blade.

REFERENCES:
patent: 1919358 (1933-07-01), Bem
patent: 3315548 (1967-04-01), Anderson et al.
patent: 3343308 (1967-09-01), Fessel
patent: 3685373 (1972-08-01), Norfolk
patent: 3991930 (1976-11-01), Ekerot

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