Method of producing composite extruded aluminum products from al

Details Method of producing composite extruded aluminum products from al Method of producing composite extruded aluminum products from al

1975-10-03

1977-08-09

Lanham, C.W.

Metal working

Method of mechanical manufacture

Shaping mating parts for reassembly in different positions

72258, 29403, B22F 324

Patent

active

040401626

ABSTRACT:
Particulate aluminum or aluminum alloy swarf or waste is compressed under heat and pressure to form a billet. After subjecting the billet to a subsequent heat treatment at a higher temperature the billets are capable of being extruded by conventional extrusion apparatus. A conventional preheated billet of cast aluminum or aluminum alloy can be placed in the extrusion apparatus between the die plate and the preheated billet of aluminum or aluminum alloy swarf so that upon extrusion through the die orifice the compressed swarf billet and the conventional billet will comprise the core and coating portions of the product respectively.

REFERENCES:
patent: 2391752 (1945-12-01), Stern
patent: 2986273 (1961-05-01), Bardgett
patent: 3010196 (1961-11-01), Smith et al.
patent: 3140108 (1964-07-01), Klein et al.
patent: 3626578 (1971-12-01), Price
patent: 3629929 (1971-12-01), Wessel
patent: 3803892 (1974-04-01), Yamaguchi et al.

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