Extrusion Fabrication Process for Discontinuous Carbide Particulate Metal Matrix Composites and Super Hypereutectic A1/SI

Primary Inventor: Edward L. Oschmann
Contributing Inventor(s): Thomas G. Haynes
Date of Patent Issuance: 03/28/2000
Status: Granted
Jurisdiction: US
Assignee: Reynolds Metals Company
Equipment Type: METAMIC-HT
Docket Number: HOL-052
Application Number: 09/126,517
Patent Number6,042,779

Abstract: The invention relates to a method for forming high performance metal alloys using powder metallurgy. Alloys are extruded under controlled temperature conditions through an extrusion die containing non-metal bearing inserts. This allows the extrusion of hypereutectic alloys without excessive wear of the extrusion die.