Changes in Composition and Properties of the Tool Electrode at Electrodischarghe Treatment by Al-Sn Alloy

Abstract

UDC 621.9.048.4

 

It is shown that at an electrodischarge treatment of Al (alloy D1) by a tool-electrode from the Al-Sn, the surface layer of the electrode is enriched with oxides and elements of the cathode. The oxides cause an increase in the electrical resistance as well as an additional heating of the electrode, thus decreasing the efficiency of doping. This necessitates periodic modifications of the working electrode surface.

 

Keywords: electrospark alloying, aluminum, nano-structuring, wear resistance, tin oxides.

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