Effect of electrode material on electrical discharge machining of tool steel surface

Younis, Mona; Abbas, Mohamed Said; Gouda, Moustafa A.; Mahmoud, Fouad H.; Allah, Sayed A. Abd

doi:10.1016/j.asej.2015.02.001

Cited by 26 publications

(18 citation statements)

References 12 publications

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“…Many studies with a focus on the surface integrity of tool steel materials during machining with different EDM variants were performed. For example, in an investigation [182], the effect of electrode material on resulting residual stresses, SR, and cracks in the surface of tool steel workpieces was studied. The research compared the machining performance while using Dura graphite 11 and Poco graphite.…”

Section: Effect Of Edm Process On the Surface Integritymentioning

confidence: 99%

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Principles and Characteristics of Different EDM Processes in Machining Tool and Die Steels

et al. 2020

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Electric discharge machining (EDM) is one of the most efficient manufacturing technologies used in highly accurate processing of all electrically conductive materials irrespective of their mechanical properties. It is a non-contact thermal energy process applied to a wide range of applications, such as in the aerospace, automotive, tools, molds and dies, and surgical implements, especially for the hard-to-cut materials with simple or complex shapes and geometries. Applications to molds, tools, and dies are among the large-scale initial applications of this process. Machining these items is especially difficult as they are made of hard-to-machine materials, they have very complex shapes of high accuracy, and their surface characteristics are sensitive to machining conditions. The review of this kind with an emphasis on tool and die materials is extremely useful to relevant professions, practitioners, and researchers. This review provides an overview of the studies related to EDM with regard to selection of the process, material, and operating parameters, the effect on responses, various process variants, and new techniques adopted to enhance process performance. This paper reviews research studies on the EDM of different grades of tool steel materials. This article (i) pans out the reported literature in a modular manner with a focus on experimental and theoretical studies aimed at improving process performance, including material removal rate, surface quality, and tool wear rate, among others, (ii) examines evaluation models and techniques used to determine process conditions, and (iii) discusses the developments in EDM and outlines the trends for future research. The conclusion section of the article carves out precise highlights and gaps from each section, thus making the article easy to navigate and extremely useful to the related research community.

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Section: Effect Of Edm Process On the Surface Integritymentioning

confidence: 99%

“…Changes in the chemical composition of re-solidified layers of the electrodes and the workpieces during the EDM of T215 Cr12 die steel were also been studied [91]. Many researches focused on the resulting residual stresses in the machined surface, such as Reference [182].…”

Section: Effect Of Edm Process On the Surface Integritymentioning

confidence: 99%

Principles and Characteristics of Different EDM Processes in Machining Tool and Die Steels

et al. 2020

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“…It was also noticed that lowering the pulse current results in the elimination of microcracks formation because of high thermal gradient below the melting zone. The residual stresses increase with soft machining due to higher pulse duration using Poco graphite electrode [82]. During the machining of steel using urea with deionized water, it was observed that machined surface is harder due to the presence of nitrogen concentration [83].…”

Section: Methods Of Improving Surface Qualitymentioning

confidence: 99%

A review on optimization of machining performances and recent developments in electro discharge machining

Nahak

Gupta

2019

Manufacturing Rev.

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Electro discharge machining (EDM) is a popular unconventional machining process widely employed in die-making industries. Careful selection of process parameters such as pulse current, voltage, on and off time, etc. is essential for machining of hard and conductive materials using EDM. Previous researchers working in the area of EDM have extensively analyzed the machining performance through experimental study, modeling, and simulation and also by theoretical analysis. This article discusses the significant summary of the work performed by earlier researchers through a detailed literature survey. Relevant literature on EDM and impact of process parameters on performance measures such as surface quality, tool wear rate and material removal rate are reviewed. The challenge and limitation of EDM process are also highlighted in this article. It is observed that optimization of process parameters is essentially required for effective and economical machining. So, this article addresses the various issues related to EDM and also provides brief insight into some of the current generation applications of EDM process explored in various industries.

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“…Changes in the chemical composition of the re-solidified layers of the electrodes and workpieces were also studied during the T215Cr12 die steel EDM [ 3 ]. Several experiments centered on resulting residual stresses in the machined surface, for example, Reference [ 150 ].…”

Section: Relevant Studies On Pmedmmentioning

confidence: 99%

Recent Advances and Perceptive Insights into Powder-Mixed Dielectric Fluid of EDM

et al. 2020

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Electrical discharge machining (EDM) is an advanced machining method which removes metal by a series of recurring electrical discharges between an electrode and a conductive workpiece, submerged in a dielectric fluid. Even though EDM techniques are widely used to cut hard materials, low efficiency and high tool wear remain remarkable challenges in this process. Various studies, such as mixing different powders to dielectric fluids, are progressing to improve their efficiency. This paper reviews advances in the powder-mixed EDM process. Furthermore, studies about various powders used for the process and its comparison are carried out. This review looks at the objectives of achieving a more efficient metal removal rate, reduction in tool wear, and improved surface quality of the powder-mixed EDM process. Moreover, this paper helps researchers select suitable powders which are exhibiting better results and identifying different aspects of powder-mixed dielectric fluid of EDM.

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Effect of electrode material on electrical discharge machining of tool steel surface

Cited by 26 publications

References 12 publications

Principles and Characteristics of Different EDM Processes in Machining Tool and Die Steels

Principles and Characteristics of Different EDM Processes in Machining Tool and Die Steels

A review on optimization of machining performances and recent developments in electro discharge machining

Recent Advances and Perceptive Insights into Powder-Mixed Dielectric Fluid of EDM

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