Surface Modification on OHNS Steel Using Cu-CrB2 Green Compact Electrode in EDM

Kumar, Parveen; Sivakumar, K.; Jayakumar, N.

doi:10.1016/j.matpr.2018.04.152

Cited by 9 publications

(8 citation statements)

References 9 publications

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“…Ignoring the fact that EDM is designed to remove substances, any material on the electrode migrates to the workpiece. Migrated material will alter the properties of the machined surface due to the quick heat transfer process in EDM [110]. Electric discharge coating can be used for any thickness of the material.…”

Section: Solution 3: Improvement Of Surface Properties By Electric Di...mentioning

confidence: 99%

A review on wear failure of hydraulic components: existing problems and possible solutions

Sharma,

Kumar,

Das

2024

Eng. Res. Express

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This article comprehensively reviews the causes of wear of hydraulic components used in hydro-static transmission systems and their remedies by thermal coating processes. The wear of critical components of the hydraulic pump and motors, hydraulic valves, etc., is mainly due to abrasion, erosion, and cavitation. The most commonly found modes of wear in hydraulic components are contamination and abrasion wear. Such wear arresting can be done by using the surface coating and texturing of materials over the wear zones of the damaged parts. This article discusses the causes of wear in hydraulic components and suggests various solutions to reduce such wear. Recent challenges associated with the proposed solution for wear arresting and future scopes are identified in this review. In the end, some novel techniques for the treatment of wear in hydraulic components, such as laser beam treatment, plasma, Tungsten inert gas arc, and Electric discharge coating, have been discussed, which is the potential future work for enhancing the useful life of hydraulic components. These surface treatment methodologies can be applied to alter the surfaces of crucial hydraulic components that experience considerable wear, as seen in hydraulic pumps, valves, and other elements such as hydraulic cylinders.

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Section: Solution 3: Improvement Of Surface Properties By Electric Di...mentioning

confidence: 99%

A review on wear failure of hydraulic components: existing problems and possible solutions

Sharma,

Kumar,

Das

2024

Eng. Res. Express

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“…Mazarbhuiya and Rahang [140] A significant number of research works have been conducted using green compact electrodes for EDM and surface modification. Mathan Kumar et al [138] attempted to modify the surface of OHNS steel utilizing the Cu-CrB 2 composite for the green compact electrode. The electrode was discovered to be responsive to both high levels of discharge current and prolonged pulse duration.…”

Section: Powder Metallurgy Edm Electrodementioning

confidence: 99%

“…Electrode wear needs to be controlled. [138] Reverse EDM process for pattern generation using P/M green compact tool on aluminum 6061's surface This method has the ability to combine composite material. Reverse EDM improves MRR.…”

Section: Electrode Application Advantage Limitations Conclusionmentioning

confidence: 99%

A Review of Electrode Manufacturing Methods for Electrical Discharge Machining: Current Status and Future Perspectives for Surface Alloying

Garba,

Abdul-Rani,

Yunus

et al. 2023

Machines

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In electrical discharge machining (EDM), the tool electrode is one of the substantial components of the system, and it ensures the success or failure of the EDM process. The electrode’s role is to conduct electrical charges and erode the workpiece to the desired shape. Different electrode materials have different impacts on machining. Certain electrode materials remove metal quickly but wear out rapidly, while others degrade slowly but the material removal is too slow. The choice of the electrode has an influence on both the mechanical properties, such as metal removal rate (MRR), wear rate, surface finish, surface modification and machinability, and the electrical properties, such as sparking initiation, time lag, gap contamination and process stability. There are factors to consider when fabricating an electrode, which include the type of workpiece materials, the metallurgical alloying of the materials, the choice of fabrication techniques, the intended use of the electrode, and material cost. Considerable challenges in EDM electrode fabrication have been reported, which include excessive tool wear for green compact electrodes, high toughness for sintered electrodes, and poor rigidity for additively manufactured electrodes. To address these issues, researchers have explored different manufacturing methods, such as casting, conventional machining, electrodeposition, powder metallurgy and additive manufacturing. In this paper, the various techniques attempted and adopted in EDM electrode manufacturing are analyzed and discussed. This paper also sought to give insight into EDM, its various forms, the dielectric fluid’s properties, EDM electrode’s size and shape, the effects of the electrode on the EDM process, material removal, electrode wear, present technologies for electrode fabrication, and the limitations of these technologies. Finally, directions for future research are highlighted.

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“…4) Chemical Vapor Deposition(CVD): CVD is a method used for depositing thin films onto the surface of material to modify its surface properties [7]. CVD is used most bin electronics industry for precision micro machining and the surface texturing application [35].…”

Section: IImentioning

confidence: 99%

Surface Modification using Composite Electrodes in EDM: A Review

Thakur,

Pabla

2023

IJRASET

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EDM has been widely used for material removal purposes for manufacturing complicated shapes in the hard to machine materials and has been used commercially for making cutting tools and dies. An extended use of EDM for surface modification through coating has also been reported in research studies. Researches have reported that surface modification and coating using EDM has resulted in significant advancements in surface quality, hardness and corrosion resistance in addition to the saving in the cost of the tooling materials as desired properties at the surface that have been produced using low cost materials for making base tool and providing surface coating to get the desired surface characteristics. Researches have reported that the composite electrodes have variable effects on the surface modification using EDM depending upon factors like the material used and the manufacturing process for making of composite tool. Most composite electrodes are made by mixing materials during molten state and such but in this study the electrode is made by fitting one material inside other. Researchers have adopted different methods of surface modification using metal coating including EDM. A review of literature for surface modification using EDM is presented in this paper. In addition, studies have been conducted on the use of composite electrodes and their varying effects on both EDM machining and EDM based surface modification.

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Surface Modification on OHNS Steel Using Cu-CrB2 Green Compact Electrode in EDM

Cited by 9 publications

References 9 publications

A review on wear failure of hydraulic components: existing problems and possible solutions

A review on wear failure of hydraulic components: existing problems and possible solutions

A Review of Electrode Manufacturing Methods for Electrical Discharge Machining: Current Status and Future Perspectives for Surface Alloying

Surface Modification using Composite Electrodes in EDM: A Review

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