POWDER FORGING OF ALUMINIUM AND ITS ALLOYS

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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BEGG, ALAN ROBERT
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FORGE FURNACES FORGING HAMMERING MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS POWDER METALLURGY PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	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.