Apparatus and Method of Producing Net-Shaped Components from Alloy Sheets

A method and apparatus for producing ultra-fine grained metal material sheets. The apparatus molds and rapidly solidifies a metal material to form a fine grain precursor. The precursor is then subjected to a series of successive alternating tensile and compressive strains that alter the grain struct...

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Hauptverfasser: DECKER RAYMOND F, GHOSH AMIT
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method and apparatus for producing ultra-fine grained metal material sheets. The apparatus molds and rapidly solidifies a metal material to form a fine grain precursor. The precursor is then subjected to a series of successive alternating tensile and compressive strains that alter the grain structure of the precursor so as to form a ultra fine grained structure in sheet form. The sheet form may then be subjected to superplastic forming to form a net shaped article.