Influence of energy fraction in EDM drilling of Inconel 718 by statistical analysis and finite element crater-modelling
Journal of Manufacturing Processes（2019）
Abstract
•The increase of discharge pulse duration rises the workpiece fraction of energy.•The increase of discharge current reduces the workpiece fraction of energy.•Marangoni effect does not have a significant influence on the final crater shape.•Influence of temperature-dependent properties essential for EDM crater simulation.
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Key words
EDM optimization,Plasma-material interaction,CFD of EDM,Latent heat,Crater depth estimation
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