Process for connecting components made of a dispersion-hardened

Details Process for connecting components made of a dispersion-hardened Process for connecting components made of a dispersion-hardened

1986-05-29

1988-02-02

Godici, Nicholas P.

Metal fusion bonding

Process

Diffusion type

228203, 228238, 22826313, 228231, B23K 2000

Patent

active

047224690

ABSTRACT:
Components made of a dispersion-hardened superalloy are connected together by pressure bonding, the individual parts previously processed at their bonding surfaces only by milling, without fine machining such as grinding, electro-polishing, etc., being subjected before bonding to a heat treatment in the temperature range of between 60.degree. C. and 210.degree. C. below the recrystallization temperature for the purpose of reducing the driving force. During the subsequent coarse-grain heat treatment of the bonded workpiece, no sort of fine crystalline banding occurs in the bonding zone and the strength of the workpiece corresponds to that of the material before bonding.

REFERENCES:
patent: 4531981 (1985-07-01), Singer
Metals Handbook, vol. 2, "Heat Treating of Nickel and Nickel Alloys", 1964, p. 297.
Gerken et al., "A Review of Diffusion Welding," Welding Research Council Bulletin, 10/65.

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