SMOOTHING THE SURFACE FINISH OF ROUGH METAL ARTICLES

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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Hauptverfasser: AVELAR BATISTA-WILSON, Junia Cristina, HOUSDEN, Jonathan, GREENWELL, Daniel
Format: Patent
Sprache:eng ; fre ; ger
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APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS
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creator AVELAR BATISTA-WILSON, Junia Cristina
HOUSDEN, Jonathan
GREENWELL, Daniel
description 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.
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subjects APPARATUS THEREFOR
CHEMISTRY
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS
title SMOOTHING THE SURFACE FINISH OF ROUGH METAL ARTICLES
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