Electrical Discharge Machining of Oxide Nanocomposite: Nanomodification of Surface and Subsurface Layers

Grigoriev, Sergey N.; Волосова, М. А.; Okunkova, Anna A.; Fedorov, S. Yu.; Hamdy, Khaled; Podrabinnik, Pavel; Pivkin, Petr M.; Kozochkin, M. P.; Porvatov, A. N.

doi:10.3390/jmmp4030096

Cited by 35 publications

(34 citation statements)

References 90 publications

(110 reference statements)

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“…This sector i s t aken as a cal culation model. T he c yclosymmetric model is fixed along the a xis of rotation a nd in the circumferential direction [18][19][20].…”

Section: Housing With Horizontal Grinding Headsmentioning

confidence: 99%

Development and Power Calculation of a Grinding Wheel Design for Ultra-High-Speed Grinding

Rechenko¹,

Kamenov²

2021

EPJ Web Conf.

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Increasing the structural reliability at ultra-high-speed grinding is an important problem because it defines safety of metalworking. The purpose of work is to achieve the cutting speed up to 400-500 m/s by developing a new design of the grinding wheel with the possibility of using different grinding materials. Grinding wheel design for ultra-high-speed grinding was developed based on calculations carried out using the tear design method, which allows determining the maximum possible circumferential speed, and finite element method used to determine the equivalent stresses, plastic deformations, circumferential and radial movements . The possibility of development of a grinding wheel design for ultra-high-speed grinding has been tested experimentally. The developed designs of grinding wheels show may poddibly be used on super high-speed technological equipment for processing of parts made of hard-to-machine materials. Calculations and comprehensive experimental tests of the design of grinding wheels for ultra-high-speed grinding carried pit in this work allow determining the serviceability and the maximum possible cutting speed and provide useful information for the further development of grinding tools.

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“…This sector i s t aken as a cal culation model. T he c yclosymmetric model is fixed along the a xis of rotation a nd in the circumferential direction [18][19][20].…”

Section: Housing With Horizontal Grinding Headsmentioning

confidence: 99%

Development and Power Calculation of a Grinding Wheel Design for Ultra-High-Speed Grinding

Rechenko¹,

Kamenov²

2021

EPJ Web Conf.

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“…The same effects present in up-milling where at the tooth entrance the thickness of the cut layer is zero. During manufacturing of the cutting tool, the value of ρ is affected by the parameters as follows [9][10][11][12][13][14][15][16][17][18][19][20][21][22]:…”

Section: Influence Of Rounding Radius Of the Cutting Edge On Cutting Data Parametersmentioning

confidence: 99%

Mathematical Models of the Geometry of Micro Milling Cutters

et al. 2021

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Micromachining is an up-to-date technology widely used in different advanced areas like electronics, aerospace and medical industries. For manufacturing components with highest precision and lowest surface roughness, small-sized end mills with working diameter of less than 1 mm are often used. In this paper, in order to determine the functional relationships between structural strength, cutting properties and geometry of small-sized cutting tools, the mathematical models of working part of micro milling cutters were derived.

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“…Finally, the copper alloy was coated on the titanium (Ti-6Al-4V) material which has several applications. Popular coating techniques were studied from the literature review and EDC was selected among the coatings [8][9][10][11][12]. Figure 3 shows the different types of coatings available.…”

Section: Introductionmentioning

confidence: 99%

“…Popular coating techniques were studied from the literature review and EDC was selected among the coatings [8][9][10][11][12]. Figure 3 shows the different types of coatings available.…”

Section: Introductionmentioning

confidence: 99%

“…High thermal energy from the electrical sparks was deposited on the tool material and WS2 on the surface of the workpiece. In the work of Sergey N. Grigoriev et al [10], a comprehensive study of two different dielectric fluids and two machines on Al2O3 + 30% of TiC was considered for the experiments varying the input parameters and estimation of tool material and dielectric fluid influencing A study on the related work carried out by other researchers is summarized here. Tijo and Masanta [8] deposited a composite coating of TiC and TiB 2 with improved hardness (three times) and wear properties (seven times) on the coated surface as compared to that of the substrate (Ti-6Al-4V).…”

Section: Introductionmentioning

confidence: 99%

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Formation and Optimization of Electrical Discharge Coatings Using Conventional Electrodes

et al. 2021

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An emerging topic is electrical discharge (ED) coating with its application on complex shapes and cavities to repair components or act as functional coatings. Because it is a variant process of an electric discharge machine (EDM) with the ability to coat on electrically conductive substrates, there is a possibility that next-generation electrical discharge machining components may exploit the attachment phenomenon to enhance recast layer properties. Previously, researchers have obtained ED coating by mixing the powder in a dielectric medium and/or by using powder metallurgy electrodes. In this work, primarily, an insight in the formation of ED coating on-die sinks electrical discharge machine, using conventional electrode materials viz., bronze on titanium alloy (Ti-6Al-4V) is made. The bronze electrode on the titanium substrate obtained a crack-free copper coating of ~20 microns thickness. In order to perform the experiments, three combinations were made using five parameters: current (Amps), ton (µs), Toff (µs), duty cycle (%), and flushing pressure as constant (bar). After obtaining the coating, a combination of input parameters was selected by optimizing the output performance parameters, viz., the electrical discharge deposition rate, coating thickness, micro-cracks, and elemental coating composition. Secondarily, different optimization techniques viz., grey relational analysis, the technique for order of preferences by similarity to ideal solution, −nD angle method and information divergence method were implemented to find out the suitable combination of parameters where the latter two methods were introduced for the first time in this area of EDM optimization. A study was conducted to check whether the latter two methods are optimization techniques or multi-criteria decision-making techniques. The optimization of existing reactor types and the development of new reactors in wastewater treatment through EDC, by which energy could be saved by replacing the conventional techniques.

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Electrical Discharge Machining of Oxide Nanocomposite: Nanomodification of Surface and Subsurface Layers

Cited by 35 publications

References 90 publications

Development and Power Calculation of a Grinding Wheel Design for Ultra-High-Speed Grinding

Development and Power Calculation of a Grinding Wheel Design for Ultra-High-Speed Grinding

Mathematical Models of the Geometry of Micro Milling Cutters

Formation and Optimization of Electrical Discharge Coatings Using Conventional Electrodes

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