Comparison of Different Extrusion Methods for Compaction of Powders
Densification 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.
Andrey Molotnikov Rimma Lapovok Tao Peng Yuri Estrin
ARC Centre of Excellence for Design in Light Metals,Department of Materials Engineering,Monash Unive National Engineering Research Center for Light Alloy Net Forming,Shanghai Jiao Tong University,Shang ARC Centre of Excellence for Design in Light Metals,Department of Materials Engineering,Monash Unive
国际会议
5th International Conference on Nanomaterials by Severe Plastic Deformation(第五届剧烈塑性变形纳米材料国际会议)
南京
英文
57-62
2011-03-01（万方平台首次上网日期，不代表论文的发表时间）