Brazing inserts

Details Brazing inserts Brazing inserts

1978-01-19

1980-02-26

Husar, Francis S.

Boring or penetrating the earth

Bit or bit element

Plural separable cutter elements

175414, 228134, 76101R, B23K 104

Patent

active

041901274

ABSTRACT:
This invention relates to a method of brazing a hard metal insert into a recess in the bit of a rock working tool and to a tool produced by the method. The method includes the steps of shaping both the underside of the insert and the base of the recess to a tapered point with an angle of taper of about 130.degree., placing the insert, which is a loose fit in the recess, so that the base of the bit fits complementally into the tapered base of the recess to centralize the insert in the recess and causing a moulten brazing medium to flow into the recess between its walls and those of the insert.

REFERENCES:
patent: 2101376 (1937-12-01), Voigtland
patent: 2628072 (1953-02-01), Baker
patent: 2707619 (1955-05-01), Anderson
patent: 2890021 (1959-06-01), Sandvig
patent: 3027953 (1962-04-01), Coski
patent: 3205573 (1965-09-01), Seal et al.
patent: 3268259 (1966-08-01), Snipe

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