Julie J Wright

US Patent:

53501071, Sep 27, 1994

Filed:

Sep 8, 1993

Appl. No.:

/118864

Inventors:

Richard N. Wright - Idaho Falls ID
Julie K. Wright - Idaho Falls ID
Glenn A. Moore - Idaho Falls ID

Assignee:

EG&G Idaho, Inc. - Idaho Falls ID

International Classification:

B23K 2000
B23K 3100

US Classification:

228198

Abstract:

A method of joining two bodies together, at least one of the bodies being predominantly composed of metal, the two bodies each having a respective joint surface for joining with the joint surface of the other body, the two bodies having a respective melting point, includes the following steps: a) providing aluminum metal and iron metal on at least one of the joint surfaces of the two bodies; b) after providing the aluminum metal and iron metal on the one joint surface, positioning the joint surfaces of the two bodies in juxtaposition against one another with the aluminum and iron positioned therebetween; c) heating the aluminum and iron on the juxtaposed bodies to a temperature from greater than or equal to 600. degree. C. to less than the melting point of the lower melting point body; d) applying pressure on the juxtaposed surfaces; and e) maintaining the pressure and the temperature for a time period effective to form the aluminum and iron into an iron aluminide alloy joint which bonds the juxtaposed surfaces and correspondingly the two bodies together. The method can also effectively be used to coat a body with an iron aluminide coating.