Investigation on surface finish in powder mixed near dry electric discharge machining method

Sundriyal, Sanjay; Walia, R. S.; Vipin, .; Tyagi, Mohit

doi:10.1016/j.matpr.2019.09.031

Cited by 7 publications

(1 citation statement)

References 17 publications

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“…2,3 It was also illustrated that near-dry EDM with powder additives was efficient in performance characteristics such as higher material removal rate, reduced residual stress and better surface quality in the machined products. [4][5][6][7][8][9] Investigations related to field of powder mixed EDM has also been performed by researchers. Silicon carbide (SiC) powder additives were suspended in the dielectric oil for powder mixed EDM (PMEDM) to study surface topography of Ti-6Al-4V-ELI work material.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation and performance enhancements characteristics of gaseous assisted powder mixed near dry electric discharge machining

Sundriyal

Vipin

Walia

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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Gaseous assisted powder mixed near dry EDM (GAPMND-EDM) is one of the recent hybrid technologies, which not only enhance the machining performance, but at the same time, high quality products with better surface quality characteristics can also be achieved. In this study, the response parameters were material removal rate, surface finish, micro hardness and residual stress. It was found that the maximum material removal rate (MRR 3.379 mg/min) was achieved with combination of (dielectric) oxygen gas with graphite powder while lowest surface roughness (SR 1.11 μm) was found to be with dielectric argon gas with graphite additives. Highest micro hardness (MH) and lowest residual stress (RS) was 820.30 Vickers hardness number (VHN) and 229 MPa found with dielectric combination of zinc additives with argon gas.

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