Experimental Study on the Influence of Electrode Geometry and Electrode Path on Wear Pattern in EDM

Flaño, O.; Ayesta, I.; Izquierdo, B.; Sánchez, J.A.; Ramos, J.M.

doi:10.1016/j.procir.2017.12.103

Cited by 10 publications

(4 citation statements)

References 12 publications

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“…Similarly, the temperature produced during EDM is disseminated among the tool, workpiece, and dielectric medium; consequently, a high tool wear rate is another commonly reported drawback of EDM. This resulted in researchers adopting a change in tool shape; however, this change in shape generates machining inaccuracies [2]. Hence, the material removal rate (MRR), the tool wear rate (TWR) and dimensional inaccuracies are the problematic areas of EDM, especially in its die sinking variant.…”

Section: Introductionmentioning

confidence: 99%

“…Differently shaped electrodes are also used in the EDM of complex geometries. For instance, the machining of a shrouded blisk through EDM can be seen in [2], wherein the researchers have proposed a suitable electrode geometry and electrode progression path so that the electrode wear and gap width can be minimized. The electrode's shape and design have a direct impact on the flushing behavior of debris, which consequently improves the MRR.…”

Section: Introductionmentioning

confidence: 99%

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Hole-Making in D2-Grade Steel Tool by Electric-Discharge Machining through Non-Conventional Electrodes

et al. 2022

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A low material removal rate and a high tool wear rate are two major concerns among the research and development community of electric-discharge machining. From the literature, it is evident that several researchers have attempted to improve the material removal rate and minimize the tool wear rate by different means, such as parametric optimizations, powder mixing in the dielectric, induced vibrations in the electrode and/or workpiece, etc. Herein, an attempt is made to make use of a non-conventional electrode with a relief angle along with the taper angle of the machined feature and perform electric-discharge machining on D2-steel using copper as an electrode material. Preliminary level mathematical models were developed and validated for sparking the area of each non-conventional electrode’s design type. Three-stage experimentation was performed to identify the most appropriate electrode design. An approximately 70% improvement in the material removal rate, an around 45–50% reduction in the tool wear rate, and a nearly 10% reduction in the taper angle were realized with the newly designed non-conventional electrode. Similarly, to validate the machining performance, the most appropriate identified electrode design was used for each workpiece of different thicknesses. The confirmatory experimental results revealed that the identified electrode design is not only limited to a specific workpiece thickness but is well-suited for varying workpiece thicknesses as well.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hole-Making in D2-Grade Steel Tool by Electric-Discharge Machining through Non-Conventional Electrodes

et al. 2022

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“…The geometric factor depends on the configuration of the current and potential electrodes (Darisma et al, 2020). Geometry values and factors will follow the distribution pattern of the electrodes (Flaño et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Investigation of Groundwater Aquifer Using Electrical Resistivity Method Wenner-Schlumberger Array Mattoangin Village, Bantimurung District, Maros Regency

Syafnur,

Jibran,

Tonapa

et al. 2023

Geocelebes

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Groundwater as a source of clean water which is very important in fulfilling the needs of humans is considered suitable as the main alternative. Layers investigation of soil that is permeable to water (aquifer) in Mattoangin Village, Bantimurung District, Maros Regency aims to obtain 2D model map of the distribution of groundwater below the surface. The presence of groundwater stored in aquifers can be explored by geophysical methods. The Wenner-Schlumberger array has a good resolution so it is deemed suitable for aquifers. The measurement data was processed using Res2DInv software. The exploration resulted in a 2D cross-sectional model of the subsurface resistivity. Based on the results of measurements and data processing, the groundwater aquifer which has the potential to have resistivity values of 9.73-32.7 Ωm on track 1, resistivity values of 6.24-32 Ωm is on track 2 with a depth of 6 - 10 m and resistivity values of 5.68-33, 6 Ωm on track 3 with a depth of 6 - 8 Ωm.

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“…The electrode (tool) and the workpiece are submerged in a fluid (dielectric) that carries an electrical current. During the process, the anode and the cathode are placed very close to one another, creating a plasma stream [1,2]. The process's essence is converting electrical energy in the form of sparks into thermal energy.…”

Section: Introductionmentioning

confidence: 99%

EDM Electrode Design and Analysis to Enhance Process Performance

Abbas,

Khleif

2023

Tikrit j. eng. sci.

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Electric discharge machining (EDM) is regarded as one of the most energy-efficient manufacturing processes for exceptionally accurate processing of any electrically conductive material, regardless of mechanical properties. EDM is a non-contact process utilized in various industries, including aerospace, industrial, instruments, molds, dies, and medical tools; also, it is beneficial for hard materials with simple or proficient geometries and shapes. Although EDM is for machining "difficult to machine" metals, such as those used in the mold and die industries, metal properties indicate potential capability in the domain of surface modification due to the electrical spark between the tool and the work material. This paper investigates the machining of Alloy steel X210 by using the most affecting parameters and how electrode angles contribute to responses, as MRR, Electrode wear ratio, and surface finish, which the manufacturing industry uses to make die tools, molds, automotive parts, and other products. Electrodes with angles of 0o and 90o are used to machine workpieces using WEDM (dk7740). Electrode Angle, peak discharge current, pulse-on time, and pulse-off time were controllable parameters in this study. While all other criteria are constant, variables have been studied. The effects of the four aspects on the four variables were statistically analyzed using ANOVA by MINITAB. Regression models for the responses were developed. Regression mathematical models have been developed for Alloy steel X210 workpieces to increase productivity and industry results.

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Experimental Study on the Influence of Electrode Geometry and Electrode Path on Wear Pattern in EDM

Cited by 10 publications

References 12 publications

Hole-Making in D2-Grade Steel Tool by Electric-Discharge Machining through Non-Conventional Electrodes

Hole-Making in D2-Grade Steel Tool by Electric-Discharge Machining through Non-Conventional Electrodes

Investigation of Groundwater Aquifer Using Electrical Resistivity Method Wenner-Schlumberger Array Mattoangin Village, Bantimurung District, Maros Regency

EDM Electrode Design and Analysis to Enhance Process Performance

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