Research into the warm compaction of metal powders

Research into the warm compaction of metal powders

Radu MURESAN

Abstract. The technological method of warm powder compaction is similar to that of axial die compaction, except that both the powder and the die must be heated to a temperature between 100 and 160 ° C. This temperature range was chosen for two reasons, i.e.: at temperatures below 100°C the effect is negligible, as the phenomena accompanying compaction are identical to those accompanying cold compaction. At temperatures above 160 °C the risk of particle oxidation increases, although there also is a positive aspect when exceeding such temperature, which is the facilitation of the process of lubricant elimination from the powder mass. The method ensures that the density of the compacts is over 99% of the theoretical density of the used powder mixtures. This paper intends to present a comparative study of the behaviour of the DensmixTM powder during cold and warm compaction.

Keywords
Metal powders, Warm compaction, Sintering

Published online 11/5/2018, 5 pages
Copyright © 2018 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Radu MURESAN, ‘Research into the warm compaction of metal powders’, Materials Research Proceedings, Vol. 8, pp 152-156, 2018

DOI: https://dx.doi.org/10.21741/9781945291999-17

The article was published as article 17 of the book Powder Metallurgy and Advanced Materials

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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