Method of bonding by use of a phosphorus containing coating

Details Method of bonding by use of a phosphorus containing coating Method of bonding by use of a phosphorus containing coating

1985-12-04

1988-03-15

Ramsey, Kenneth J.

Metal fusion bonding

Process

Metal to nonmetal with separate metallic filler

76DIG11, B23K 120

Patent

active

047307650

ABSTRACT:
A method of bonding a cemented carbide surface to a metal surface is provided. The method involves applying an alloy layer to one or both of the surfaces, the alloy comprising a major amount of nickel or copper and a minor amount of phosphorus, heat treating the alloy layer below its liquidus temperature to cause it to diffusion bond to the surface top to which it is applied and bonding the surfaces together by means of a solder or braze alloy which preferably has a liquidus of no more than 750.degree. C. The method has particular application to bonding cutting inserts to drill bits and cutting tools for mining machines.

REFERENCES:
patent: 2872312 (1959-02-01), Eisenberg
patent: 3169304 (1965-02-01), Gould
patent: 3599316 (1971-08-01), Moskal
patent: 3628233 (1971-12-01), Sowko
patent: 3874069 (1975-04-01), Ingleby
patent: 4203690 (1980-05-01), Tanaka et al.
patent: 4352714 (1982-10-01), Patterson et al.
patent: 4520881 (1985-06-01), Phaal

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