Manufacturing of controlled porosity metallic tools
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United States of America Patent
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Issued Date -
Jun 29, 2006
app pub date -
Jun 18, 2004
filing date -
Jun 20, 2003
priority date (Note) -
Abandoned
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Abstract
A process for making a metal tool having controlled porosity is disclosed. The process includes the step of preparing metal powder by gas atomization. The metal powder is filled into a metal container. The powder-filled container is placed in a metal vessel and surrounded with glass frit. The metal vessel is then heated to a temperature sufficient to melt the glass frit. The metal vessel is then compacted under sufficient pressure to partially consolidate the metal powder so as to retain a desired amount of porosity therein.
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