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Comparison of different extrusion methods for compaction of powders
conference contribution
posted on 2011-01-01, 00:00 authored by A Molotnikov, Rimma LapovokRimma Lapovok, T Peng, Y EstrinDensification of metallic powders by means of extrusion is regarded as a very attractive processing technique that allows obtaining a high level of relative density of the compact. However, the uniformity of the relative density depends on that of strain distribution and on the processing parameters. Several variants of extrusion can be used for compaction of metal particulates, including the conventional extrusion (CE) and equal channel angular pressing (ECAP), often referred to as equal-channel angular extrusion. Each of these processes has certain advantages and drawbacks with respect to compaction. A comparative study of these two extrusion processes influencing the relative density of compacts has been conducted by numerical simulation using commercial finite element software DEFORM2D. The results have been validated by experiments with titanium and magnesium powders and chips.
History
Event
Nanomaterials by Severe Plastic Deformation. International Conference (5th : 2011 : Nanjing, China)Volume
667-669Series
Materials Science ForumPagination
57 - 62Publisher
Trans Tech PublicationsLocation
Nanjing, ChinaPlace of publication
Zurich, SwitzerlandStart date
2011-03-21End date
2011-03-25ISSN
0255-5476ISBN-13
9783037850077Language
engPublication classification
E Conference publication; E1.1 Full written paper - refereedCopyright notice
2011, Trans Tech PublicationsEditor/Contributor(s)
J Wang, R Figueiredo, T LangdonTitle of proceedings
SPD5 : Selected Peer Reviewed Papers from the 5th International Conference on Nanomaterials by Severe Plastic DeformationUsage metrics
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