Journal
MICROMACHINES
Volume 12, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/mi12111289
Keywords
analytical hierarchy process; residual stress; metal erosion rate; surface roughness
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Funding
- Russian Ministry of Science and Higher Education [FSNM-2020-0028]
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The study utilized the analytic hierarchy process (AHP) to determine the most suitable conditions for the machining of metal matrix composites (MMCs) in electric discharge machining (EDM), by examining the effect of process parameters on material erosion rate (MER), surface roughness (SR), and residual stresses.
The present study reports on the method used to obtain the reliable outcomes for different responses in electric discharge machining (EDM) of metal matrix composites (MMCs). The analytic hierarchy process (AHP), a multiple criteria decision-making technique, was used to achieve the target outcomes. The process parameters were varied to evaluate their effect on the material erosion rate (MER), surface roughness (SR), and residual stresses (o ) following Taguchi's experimental design. The process parameters, such as the electrode material (Cu, Gr, Cu-Gr), current, pulse duration, and dielectric medium, were selected for the analysis. The residual stresses induced due to the spark pulse temperature gradient between the electrode were of primary concern during machining. The optimum process parameters that affected the responses were selected using AHP to figure out the most suitable conditions for the machining of MMCs.
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