Yadav, Sharad, Agarwal, Deepak, Sharma, Anuj Kumar, Singh, Rabesh Kumar, Chauhan, Saurabh and Mohanty, Shalini ORCID: https://orcid.org/0000-0002-0424-792X (2025) Experimental investigation of Al2O3 nano-powder-mixed dielectric in EDM-assisted micro-milling. Micromachines, 16 (7):725. ISSN 2072-666X (Online) (doi:10.3390/mi16070725)

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Abstract

This paper investigates the use of Al2O3 nano-powder-stirred micro-EDM process for generating micro-channels. This study focuses on the effect of critical machining process parameters, such as capacitance levels and nano-powder concentration, on the micro-channel fabrication performance in terms of TWR, MRR, depth, and width. A two-stage nested ANOVA is employed to understand the effect of powder concentration within different capacitance levels. The results show that the powder concentration significantly influences the system’s performance in conjunction with the capacitance. At low (100 pF) and high (1000 pF) capacitance, the addition of Al2O3 nano-powder increases the MRR, depth, and width but decreases TWR up to a concentration of 1.0 g/L. A desirability function analysis (DFA) tool identified the best overall performance from 14 experiments, revealing that 100 pF and 1 g/L yield the optimal outcomes.

Item Type:	Article
Additional Information:	This article belongs to the Special Issue Micro-Electro Discharge Machining: Principles, Recent Advancements and Applications, 4th Edition.
Uncontrolled Keywords:	micro-EDM; powder-mixed μ-EDM; alumina; micro-milling; micro-channel; DFA
Subjects:	Q Science > Q Science (General) T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified:	25 Jun 2025 14:36
URI:	https://gala.gre.ac.uk/id/eprint/50731

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