Powder forging of aluminum and its alloys

Details Powder forging of aluminum and its alloys Powder forging of aluminum and its alloys

1984-02-24

1985-02-26

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75251, B22F 900

Patent

active

045016119

ABSTRACT:
This invention relates to (a) a powder of aluminium or an alloy thereof having at least 0.04% w/w of gallium concentrated on the grain boundaries of the particles in the powder, (b) a method of producing the powder by fragmenting a substrate of aluminium or an alloy thereof coated with gallium under a deforming stress, and (c) a method of forging the powder. The powder can be forged into complex shapes using fewer steps than hitherto possible especially with aluminium powders.

REFERENCES:
patent: 4150204 (1979-04-01), Moden et al.
patent: 4166755 (1979-09-01), Fister, Jr.
Khuldov, E. A. et al.; Welding Production, vol. 23, Sep. 1976; Fluxless Brazing of Aluminum Alloys with Low Temperature Solders Alloyed with Gallium.
Spasskii, A. G. et al.; Welding Production, vol. 17, 1970; Fluxless Soldering of Aluminum and Magnesium Alloys.
Novik et al.; Industrial Laboratory, 42(5), pp. 780-782, May 1976, Use of Design of Experiments in Developing a Composite Gallium Solder.

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