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Influence of Material Removal Rate (MRR) by The Direct Current (DC) Power Supply in The Electrochemical Mask Etching Process.

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» doi: 10.48047/ecb/2023.12.12.161


Electrochemical Machining Masking (ECMM) is one of the advanced machining processes that falls under the category of electrochemistry. Electrochemical machining (ECM) represents a distinct departure from galvanic or electrochemical coating deposition procedures. Electrochemical machining (ECM) can be conceptualized as a meticulously regulated process of anodic dissolution occurring at the atomic scale of a workpiece possessing electrical conductivity. This dissolution is facilitated by an electrolyte, typically a neutral salt solution with a water base. The machining parameters for mask electrochemical etching encompass several factors, including gap between cathode and anode, machining current, electrolyte concentration, operating voltage, machining area, and type of materials. This study aims to investigate the diverse parameters that influence the material removal rate (MRR) of electrochemical mask etching, with a specific focus on the DC power supply. This study aims to investigate the impact of varying current levels, specifically 5, 10, 15, 20, and 25 Amps, as well as the effect of different machining gaps, namely 2, 4, 6, 8, and 10 centimeters. The investigation involved conducting machining experiments on various materials, namely aluminum, steel, and stainless steel. The dimensions of both the anode and cathode were standardized at 20x20x2 mm.The process of removing material from a substrate can be achieved through either chemical reactions or etching processes. An experiment was conducted on aluminum, steel, and stainless-steel plates. This inquiry pertains to the electrochemical etching process and its impact on material removal rate (MRR), current density, and machining gaps. The findings have been presented. The experimental findings indicate that the material removal rate (MRR) in machining exhibits an upward trend with an increase in current, while conversely, it demonstrates a downward trend with an increase in the gap between the cathode and anode.

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