Iranian Journal of Manufacturing Engineering

Iranian Journal of Manufacturing Engineering

Experimental analysis of the material removal rate in localized electrolysis of austenitic stainless steel in (NaCl-NaNO3) electrolyte solutions

Document Type : Original Article

Authors
Soheila Heidari 1
Mohammad Mostafa Mohammadi 1
Leila Ghalamchi 2
1 Department of Mechanical Engineering, University of Zanjan, Zanjan, Iran
2 Department of Chemistry, University of Zanjan, Zanjan, Iran
10.22034/ijme.2025.488207.2026
Abstract
Increasing the material removal rate in machining processes is of great importance. On the other hand, considering the complex nature of localized electrolysis, conducting systematic experimental studies using experimental design methods is of great help in analyzing such processes. In this paper, the localized electrolysis process of austenitic stainless steel AISI304 has been studied. The electrolyte used is a mixture of sodium nitrate and sodium chloride. Using the central composite design in response surface methodology, the necessary experiments have been designed to analyze the effects of sodium nitrate and sodium chloride concentrations along with machining gap and Ph of the electrolyte on the material removal rate. This experimental study has evaluated the interaction of the effects of electrolyte pH and inter-electrode gap on the output parameters. Also, the RSM optimization method has been explored to determine the essential criteria for achieving the optimal response for material removal rate of the machining. The maximum material removal rate may be achieved when the machining gap is minimum and the concentration of NaCl is 55.96 g/l.
Keywords
Material Removal Rate
Localized Electrolysis
Electrolyte Condition
Optimization
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