Study on Warm Flow Compacted Tungsten-Based Alloy Powder for Cross-Shape Part

Abstract:

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Warm flow compaction is a new, simple and economy process that can produce complex powder metallurgy parts. A special apparatus for measuring the lateral flow capability of the powder was designed and manufactured. It can be used to analyze the feasibility of forming complex cross-shaped parts. The preparation of the powder blend and effects of pressing speed, temperature and axial pressure on the lateral flow capability of a tungsten-base powder mix were investigated. Results showed that the lateral-pressure increased with increased pressing speed and increased applied axial-pressure. The lateral-pressure decreased as lateral-distance increased. Biggest lateral-pressure was obtained when the powder blend was pressed at around 96 °C, at which the binder start to melt. In this study cross-shaped powder metallurgy parts were successfully prepared by warm flow compaction.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

921-924

DOI:

10.4028/www.scientific.net/MSF.561-565.921

Citation:

Z. Y. Xiao et al., "Study on Warm Flow Compacted Tungsten-Based Alloy Powder for Cross-Shape Part", Materials Science Forum, Vols. 561-565, pp. 921-924, 2007

Online since:

October 2007

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Price:

$35.00

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