CFD analysis of MR fluid applied for finishing of gear in MRAFF process

Kumar, Manjesh; Kumar, Vikash; Kumar, Abhinav; Yadav, Hari Narayan Singh; Das, Manas

doi:10.1016/j.matpr.2021.01.116

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…However, anodic-mechanical milling is not yet widespread. It is also known that during finishing and finishing operations of anodomechanical processing, cutting schemes involving the sequential action of a mechanical and then an electrochemical component are the most effective [29,30]. This method of processing is based on a combination of electrocontact interaction of the tool and the workpiece (mechanical destruction or shaping of metal surfaces produced simultaneously with heating or melting of these surfaces by electric current) and a galvanic process (in this case, it is the anodic dissolution of metal from the treated surface) [31].…”

Section: Features Of Aluminum Alloy Processingmentioning

confidence: 99%

Features of mechanical processing of aluminum alloys

Nikiforov

2023

E3S Web of Conf.

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The issue of ensuring the technological quality of aluminum alloy products is considered. The problems that arise during the processing of aluminum alloys are described in detail. The results of various studies aimed at solving the described problem are presented. The author proposes to consider the method of magnetic abrasive machining as one of the promising methods for processing complex products.

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Section: Features Of Aluminum Alloy Processingmentioning

confidence: 99%

Features of mechanical processing of aluminum alloys

Nikiforov

2023

E3S Web of Conf.

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“…For the simulation of MR polishing fluid, the non-Newtonian fluid viscosity model or the built-in magnetohydrodynamic model (MHD) can usually be used in simulation software. Kumar et al [12] used COMSOL multiphysics software to analyze the computational fluid dynamics of MR fluids in the two-dimensional computational domain. The influence of different process variables on the flow variables in the processing of gear components is explored.…”

Section: Introductionmentioning

confidence: 99%

Simulation Study of a New Magnetorheological Polishing Fluid Collector Based on Air Seal

Chen

Zhang

et al. 2022

Applied Sciences

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Inverted magnetorheological (MR) polishing device mainly use a magnetic sealing ring to collect polishing fluid. This collection method wears the wheel surface of the polishing wheel, affects the surface accuracy of the polishing wheel, and introduces machining error. In order to reduce this wear and improve recovery efficiency, a new type of collector using an air seal is proposed in this paper. Furthermore, testing method using six factors and a three-level orthogonal test table is used to study the structural parameters of the new collector. The flow fields affected by the different structural parameters were simulated, and the corresponding collection efficiency was analyzed. The results show that the air nozzle diameter has the greatest impact on the fluctuation value of the collector outlet flow, followed by the airflow velocity and nozzle spacing. Moreover, the structural parameters obtained from the orthogonal test were optimized using the control variable method. The minimum flow fluctuation and maximum flow at the collector outlet can be obtained when the nozzle diameter is 2.5 mm and the nozzle airflow velocity is 31 m/s.

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“…Surface roughness is a critical parameter of predicting the performance of a component in the real environment. 5 For different purposes, different surface roughness ranges are required. Wear and friction happen more in the case of a rough surface rather than a smooth surface.…”

Section: Introductionmentioning

confidence: 99%

Plasma polishing processes applied on optical materials: A review

Yadav

Kumar

et al. 2021

Journal of Micromanufacturing

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Nowadays, the surface quality of the material is crucial for industry and science. With the development of micro-electronics and optics, the demand for surface quality has become more and more rigorous, making optical surface polishing more and more critical. Plasma polishing technology is conceived as an essential tool for removing surface and subsurface damages from traditional polishing processes. The plasma processing technology is based on plasma chemical reactions and removes atomic-level materials. Plasma polishing can easily nano-finish hard-brittle materials such as ceramics, glass, crystal, fused silica, quartz, Safire, etc. The optical substrate with micro-level and nano-level surface roughness precision is in demand with the advancement in optics fabrication. The mechanical properties of super-finished optics materials are being used to fulfill the requirement of modern optics. This article discusses the processing of different types of freeform, complex and aspheric optical materials by the plasma polishing process used mainly by the optical industry. The plasma polishing devices developed in the last decade are thoroughly reviewed for their working principles, characteristics and applications. This article also examines the impact of various process parameters such as discharge power, rate of gas flow, mixed gas flow ratio and pressure on the plasma polishing process.

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CFD analysis of MR fluid applied for finishing of gear in MRAFF process

Cited by 9 publications

References 15 publications

Features of mechanical processing of aluminum alloys

Features of mechanical processing of aluminum alloys

Simulation Study of a New Magnetorheological Polishing Fluid Collector Based on Air Seal

Plasma polishing processes applied on optical materials: A review

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