High velocity compaction of aluminum powder metallurgy alloys

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Near-net-shape processes are alternative methods of manufacturing products which provide minimal raw material wastage and little need for secondary machining or finishing. Powder metallurgy (PM) technologies are some of the most popular near-net-shape processes, where powdered metals are pressed into complex product geometries. High velocity compaction (HVC) is an emerging PM technique which presses powders at velocities approaching 20 m/s. This technique can potentially produce near-uniform densities for relatively the same cost as conventional compaction techniques. The HVC research has accelerated from basic experimental trials to more in-depth investigations of its potential performance increases in the last decade. However, these activities have been centered primarily in European research centers. As an emerging technology, HVC may prove to be a vital competitive manufacturing technique and the proposed research program aims to have a significant impact on Canadian PM operations.