SMOOTHING THE SURFACE FINISH OF ROUGH METAL ARTICLES

A process for smoothing the surface of a manufactured metallic workpiece, the workpiece having a region having an initial roughness (Ra) of greater than 2.0 μm, the process involving (1) placing the metallic workpiece as the anode in an electrochemical cell, (2) arranging for the temperature of the...

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Bibliographische Detailangaben
Hauptverfasser:	AVELAR BATISTA-WILSON, Junia Cristina, HOUSDEN, Jonathan, GREENWELL, Daniel
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS THEREFOR CHEMISTRY ELECTROLYTIC OR ELECTROPHORETIC PROCESSES METALLURGY PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A process for smoothing the surface of a manufactured metallic workpiece, the workpiece having a region having an initial roughness (Ra) of greater than 2.0 μm, the process involving (1) placing the metallic workpiece as the anode in an electrochemical cell, (2) arranging for the temperature of the electrolyte in the vicinity of the anode to be at least 50° C., (3) applying a voltage from 100V to 1000V across the electrochemical cell, thereby to generate a plasma membrane on the surface of the metallic workpiece which acts to remove material from the surface of the metallic workpiece, (4) maintaining the plasma membrane for a period effective to cause the roughness of the workpiece to be reduced.