Investigation of Etchants for Etching Conditions of Aluminium

Abstract

The purpose of the present work was to examine alternative etching conditions of aluminium. It has been investigated the effects of etching solution type, solution concentration on the etching behavior for aluminum. The measurements of depth of etch and etch rate values were measured by using 0-150 mm electronic digital caliper. Mitutoyo SJ-301 equipment was used for analyzing the surface of the aluminium. The effects of selected chemical etching parameters on depth of etch and surface finish quality were investigated. The best etching results were observed by using HCl solution but the surface quality with this solution had to be improved. Also it was concluded that etching solution and concentration have important effects on aluminium surface quality.

Keywords: surface treatments, selection of material processes, chemical reactions