Manufacturing of controlled porosity metallic tools
OwnerLouis Lherbier, David Novoinakinventors
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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.
Claims10
A process for making a metal tool having controlled porosity, comprising the steps of:
- preparing metal powder by gas atomization;
- filling a metal container with the metal powder;
- placing the powder-filled container in a metal vessel;
- surrounding the powder-filled container in the metal vessel with glass frit;
- heating the metal vessel to a temperature sufficient to melt the glass frit;
- and then
- compacting the metal vessel under sufficient pressure to partially consolidate the metal powder so as to retain a desired amount of porosity therein.
A process for making a composite metal tool having controlled porosity, comprising the steps of:
- preparing metal powder by gas atomization;
- placing a piece of a fully consolidated metal in a metal container;
- filling the metal container with the metal powder;
- placing the powder-filled container in a metal vessel;
- surrounding the powder-filled container in the metal vessel with glass frit;
- heating the metal vessel to a temperature sufficient to melt the glass frit;
- and then
- compacting the metal vessel under sufficient pressure to bond the metal powder to the fully consolidated metal piece and to partially consolidate the metal powder so as to retain a desired amount of porosity therein.
Dependencies are inferred from the claim text.