Enrichment of material subtraction rate on Eglin steel using electrical discharge machining process through modification of electrical circuits

Rani, Shweta; Sundari, V. Kamatchi; Jose, P. Subha Hency; Sivaranjani, S.; Stalin, B.; Pritima, D.

doi:10.1016/j.matpr.2020.07.670

Cited by 21 publications

(6 citation statements)

References 8 publications

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“…Other factors entering the process, which result in undesired geometric form deviations, are the properties of the wire electrode and those of the workpiece material. Shandilya [20], Rani [21], and Ngocpi [22] also declared these facts. According to Rouniyar [23], Yan [24], and Salcedo [25] the key factors are also technological and process parameters.…”

Section: Geometric Accuracy and Surface Roughness In Electrical Discharge Machiningmentioning

confidence: 89%

Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM

Straka

Čorný

2021

Applied Sciences

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Although WEDM is one of the most precise finishing technologies, deviations from the required geometric shapes and surface roughness occur in the production of parts with rotary surfaces. Even though these shortcomings have only a minimal impact on planar cuts, the production of circular profiles is a different problem. One of the factors causing this poor quality is the vibration of the wire electrode. With appropriate vibration adjustment, it would be possible to achieve significant improvements of the eroded area quality, both in terms of geometric accuracy and in terms of surface roughness. This would significantly increase quality, enabling WEDM technology to compete with other technologies in terms of economic efficiency. Therefore, the proposed solution aims to provide a partial adjustment to the wire tool electrode vibrations, based on their sensing by the means of acoustic emissions or a laser beam, with subsequent dynamic adjustment of the actual technological parameter values. This way, the given solution will increase the production accuracy of circular holes, increase productivity, and ultimately provide an overall increase in the economic efficiency of the WEDM process. The article also presents the scheme of a control algorithm for monitoring and subsequent adjustments of the vibrations of the wire tool electrode during the electroerosion process in order to minimize geometric deviations of circularity, cylindricity and roughness of the machined surface.

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Section: Geometric Accuracy and Surface Roughness In Electrical Discharge Machiningmentioning

confidence: 89%

Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM

Straka

Čorný

2021

Applied Sciences

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“…As part of the evaluation of the experimentally recorded values of output-dependent variables related to the quality of the machined surface in terms of the Ra parameter and the performance of the electrical discharge process in terms of the MRR parameter in micro-WEDM of HSS, a series of sequential steps was implemented. The reason was the fact that the results of experimentally recorded values are usually characterized by a highly asymmetric distribution and unconventional dispersion [ 67 , 68 , 69 ]. Therefore, in the first step, an exploratory data analysis was applied, which excluded anomalies in the obtained results of experimental measurements.…”

Section: Methodsmentioning

confidence: 99%

Simulation and Optimization of Surface Roughness and Process Performance during Machining of HSS by Micro-WEDM Technology

Straka,

Čorný

2024

Micromachines

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When machining high-speed steels (HSS) with micro-wire electrical discharge machining (micro-WEDM), high surface quality is achieved as standard. The value of the roughness parameter Ra is less than 0.2 μm. However, the problem is the performance of the electroerosion process (MRR), which is low. This problem is related to the mechanical and physical properties of the HSS in combination with the setting of the main technological parameters (MTP). The proposed solution to eliminate this problem relies on the selection of proper procedures for the determination of optimization criteria in relation to Ra and MTP, with the inclusion of properties of the machined material. The solution consisted in the identification of four significant physical (ρ, κ) and mechanical (Rm, HRC) indicators of HSS properties, on the basis of which a suitable combination of the process output parameters Ra and MRR can be determined through established mathematical regression models using simulation and optimization. In the next step, the proper values of the MTP output process parameter settings, which correspond to the optimized output parameters Ra and MRR during machining of HSS by micro-WEDM technology, were then obtained by the same approach.

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“…The seed sowing process begins with filling the seed hopper with the desired quantity of seeds, either manually or using a separate seed filling machine. Afterward, start the machine and activate the remote-control system [18,19], ensuring proper synchronization between the remote-control device and the machine's control system. Next, utilize the depth control mechanism to set the sowing depth according to the specific seed type and prevailing soil conditions.…”

Section: Working Of Seed-sowing Machinementioning

confidence: 99%

Designing a Precision Seed Sowing Machine for Enhanced Crop Productivity

Sudha Paulin,

Pant,

Naveena

et al. 2024

E3S Web Conf.

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A seed sowing machine is a valuable agricultural device that facilitates the precise and efficient sowing of seeds in fields. When designing and optimizing such a machine, several crucial factors need consideration including seed size, seed rate, soil type, and field conditions. The primary objective is to achieve uniform seed distribution and optimal seed-to-soil contact, which can be accomplished by incorporating a seed metering mechanism to control the seed rate accurately. Versatility is another important aspect of the machine's design, as it should be able to handle different seed sizes, types, soil conditions, and field variations. To achieve this, utilizing advanced technologies such as sensors, automation, and precision farming techniques can significantly enhance the machine's performance and efficiency while also reducing costs and minimizing environmental impact. The optimization of a seed sowing machine plays a crucial role in ensuring successful crop production. By implementing cutting-edge technologies and precision farming techniques, farmers can increase their yields and decrease the amount of seed and fertilizer needed for a specific area. Ultimately, this leads to improved productivity, increased profitability, and a more sustainable approach to agriculture.

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Enrichment of material subtraction rate on Eglin steel using electrical discharge machining process through modification of electrical circuits

Cited by 21 publications

References 8 publications

Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM

Adjustment of Wire Vibrations in Order to Improve Geometric Accuracy and Surface Roughness at WEDM

Simulation and Optimization of Surface Roughness and Process Performance during Machining of HSS by Micro-WEDM Technology

Designing a Precision Seed Sowing Machine for Enhanced Crop Productivity

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