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Influence of Process Parameters on Machinability of Inconel 718 by Electrochemical Micromachining Process using TOPSIS Technique

  • T. Geethapriyan
  • T. MuthuramalingamEmail author
  • K. Kalaichelvan
Research Article - Mechanical Engineering

Abstract

Accurate and precise micromachining with intricate features is an essential requirement for various applications of engineering materials in the present scenario. This is effectively achieved by the enhancing the electrochemical machining process, since it is a new and promising technique offering distinct advantages in overall machining quality. The turbine performance depends on a turbine blade and many small apertures with varying diameters of 0.5–4 mm for reducing the heat produced during its operation for improving efficiency. The present study was carried out for investigating the effects of diverse input process factors on the machining accuracies in the electrochemical micromachining process under two different electrolytes such as sodium chloride and sodium nitrate. The sodium chloride was found to have a higher material removal rate compared to sodium nitrate as electrolyte. A better surface finish and radial overcut were achieved with sodium nitrate compared to sodium chloride electrolyte. The optimum combination of ECMM process parameters was determined using TOPSIS method and verified with a confirmation test.

Keywords

Inconel 718 NaCl NaNO3 TOPSIS Optimization 

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Copyright information

© King Fahd University of Petroleum & Minerals 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringSRM Institute of Science and TechnologyKattankulathurIndia
  2. 2.Department of Mechatronics EngineeringSRM Institute of Science and TechnologyKattankulathurIndia
  3. 3.Department of Ceramic TechnologyAnna UniversityChennaiIndia

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