Sound generated during the compaction of alumina reinforced aluminum powders.
the internal defects of any materials. During the processing stages these techniques are very crucial task to be considered because earlier rejection of the compacted materials capable to save the manufacturing costs before they are experienced further processing levels. In this work, sound generate...
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| Format: | Conference or Workshop Item |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2322/ http://eprints.uthm.edu.my/2322/1/Sound_generated_during.pdf |
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| Summary: | the internal defects of any materials. During
the processing stages these techniques are very crucial task to be
considered because earlier rejection of the compacted materials
capable to save the manufacturing costs before they are
experienced further processing levels. In this work, sound
generated during the powder compaction of metallic and nonmetallic
powders are studied. Different reinforcing percentages
are used to examine their effect on the sound generations. Sound
detectors are attached on the surface of the mould and identical
sound filtering software package is used to filter out the unwanted
sound. Prior to compaction, surface roughness of the internal
mould is determined and it is followed the industrial value of the
surface roughness and another mould is highly polished. It is
found that higher fraction of the reinforcing elements and the
influence of surface roughness affected the rate of sound
generation during the quasi-static powder compactions. |
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