Process of forming a composite structure

Details Process of forming a composite structure Process of forming a composite structure

1989-12-22

1991-04-30

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 31, 419 48, 419 53, 419 54, 419 57, 428553, 428558, 428188, 428681, B22F 300

Patent

active

050116550

ABSTRACT:
The invention provides a method of manufacturing a thin metallic body composite structure. First, an inner layer of a first metal is cleaned to remove oxides and promote metallurgical bonding. The inner layer has a plurality of penetrating holes piercing the thickness of the inner layer. The penetrating holes are filled with metal powder of a second metal. Two outer layers of the second metal are placed on opposite sides of the cleaned and filled inner layer to form a sandwich structure. The sandwich structure is heated to a temperature at which recrystallization will occur in a non-oxidizing atmosphere. The sandwich structure is then hot worked to reduce thickness of the sandwich structure forming the thin metallic body composite structure.

REFERENCES:
patent: 4283464 (1981-08-01), Hascoe
patent: 4597449 (1986-03-01), Lueth
patent: 4599277 (1986-07-01), Brownlow et al.
patent: 4836979 (1989-06-01), Bell et al.
Implementation of Surface Mount Technology in High Reliability Products, by: Gregory L. Horton, Feb. 1987, pp. 781-802.
Military Moves Headlong into Surface Mounting, printed by Electronics, Jul. 10, 1986, copyright 1986, McGraw-Hill, Inc.

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