Simplified plasma channel formation model for the electrical discharge machining process

Escobar, Agustín Márquez; Lange, D.; Medellín-Castillo, Hugo I.

doi:10.1007/s00170-019-04593-2

Cited by 6 publications

(2 citation statements)

References 36 publications

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“…However, in the second-order model, this drawback can be eliminated with a significant improvement in optimization of the process. Finally, after neglecting the higher terms, the second-order model is represented in Equation (3).…”

Section: Experimental Arraymentioning

confidence: 99%

“…WEDM is a thermal-erosion process [2], where localized heating is utilized to remove the material, which is caused due to plasma channel. Plasma is produced between the workpiece and electrode [3]. Only a fraction of the heat from the total produced is transferred to the workpiece to melt the material and evaporate it, which is further fleshed out while utilizing de-ionized fluid flowing.…”

Section: Introductionmentioning

confidence: 99%

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A Soft Computing-Based Analysis of Cutting Rate and Recast Layer Thickness for AZ31 Alloy on WEDM Using RSM-MOPSO

et al. 2022

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In the present research, the AZ31 alloy is machined by wire-cut electric discharge machining (WEDM). The experiments were designed according to the Box-Behnken design (BBD) of response surface methodology (RSM). The input process variables, namely servo feed (SF), pulse on-time (Ton), servo voltage (SV), and pulse off-time (Toff), were planned by BBD, and experiments were performed to investigate the cutting rate (CR) and recast layer thickness (RCL). The analysis of variance (ANOVA) was performed to determine the influence of machining variables on response characteristics. The empirical models developed for CR and RCL were solved using Multi-Objective Particle Swarm Optimization (MOPSO). Pareto optimal front is used for the collective optimization of CR and RCL. The optimal solution suggested by the hybrid approach of RSM-MOPSO is further verified using a confirmation test on the random setting indicated by the hybrid algorithm. It is found that the minimum RCL (6.34 µm) is obtained at SF: 1700; SV: 51 V; Toff: 10.5 µs; and Ton: 0.5 µs. However, maximum CR (3.18 m/min) is predicted at SF: 1900; SV: 40 V; Toff: 7 µs; and Ton: 0.9 µs. The error percentage of ±5.3% between the experimental results and predicted solutions confirms the suitability of the proposed hybrid approach for WEDM of AZ31.

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Section: Experimental Arraymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%