Enhancement of metal removal rate (MRR)‎ and surface finish in electrochemical machining

Abstract EN

Electro chemical machining (ECM) is a non traditional process that can machine difficult to cut material.

This paper was focused on methods which are used to enhance metal removal rate (MRR) and surface finish during experimental investigations, were the work materials are two aluminum alloy ( AL Zn Mg Cu 1.5-DIN 1725-1) and aluminum 1100 with using brass and steel ck35 tools, also NaCl solution as electrolyte was used.

Experiments prove that increasing electrolyte flow rate from 6-14 l / min at electrolyte concentration 200g / l lead to increase metal removal rate reach to (63.07 %) and enhancement of surface finish by reducing roughness from (5.07 to 3.25 μm ) minimum and from (6.63 to 1.2 μm) maximum using work material from aluminum alloys to perform that .

Also there are another factors influencing in metal removal rate and surface finish such as voltage and frequency when increasing them from (10-30)V lead to increase MRR about (29.45%) and frequency from (100-500) HZ improved MRR by (34.17 %).