Method of making "Damascus" blades

A method of making a steel article having a "Damascus" surface pattern wherein a steel melt comprising about 1.0 to about 2.0 weight % carbon is solidified to form an ingot, the ingot is heated between about 1100 DEG to about 1299 DEG C. for a time at temperature of about 5 to about 12 hou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PENDRAY, ALFRED H, VERHOEVEN, JOHN D
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY FORGE FURNACES FORGING GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS HAMMERING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PRESSING METAL PUNCHING METAL RIVETING TRANSPORTING
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Beschreibung
Zusammenfassung:	A method of making a steel article having a "Damascus" surface pattern wherein a steel melt comprising about 1.0 to about 2.0 weight % carbon is solidified to form an ingot, the ingot is heated between about 1100 DEG to about 1299 DEG C. for a time at temperature of about 5 to about 12 hours, a malleable envelope is formed about the ingot separately or concurrently with the heat treatment, and the enveloped ingot is shaped (e.g., forged) initially at an ingot temperature above the Ar-gr temperature but below the liquidus temperature and then at an ingot temperature below the Acm temperature. The envelope is then removed from the shaped ingot.