Material removal of glass by magnetorheological fluid jet

Kim, Wook Bae; Nam, Eunseok; Min, Byung Kwon; Choi, Doo-Sun; Je, Tae-Jin; Jeon, Eun‐chae

doi:10.1007/s12541-015-0084-3

Cited by 27 publications

(8 citation statements)

References 28 publications

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Section: Introductionsupporting

confidence: 86%

“…IPs create a chain framework in magnetic domain across magnetic field line. The amount of IPs (N IP ) in a 1 mm long chain could be estimated using equation (14). In addition, the total unit cells in MRPF is determined by the edge length of each unit cell in polishing region.…”

Section: Analysis Of Magnetorheological (Mr) Polishing Processmentioning

confidence: 99%

“…12 As a result, detailed knowledge of the MFD distributions, indenting force magnitude on active APs and rheological characteristics of MRF is essential in the MRFF approach to anticipate the material removal rate (MRR). 13,14 In modern industries, requirements for micro-sized components are increasing on a daily basis. 15,16 These individual micro-sized components are highly utilized in remote machine systems.…”

Section: Introductionmentioning

confidence: 99%

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Material removal analysis during MR polishing of complex gear teeth profiles

Kumar

Yadav

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The geometric intricacy of tiny gears makes nano-finishing difficult. In the current study, the magnetorheological (MR) polishing process is used for the nano-finishing of intricate surfaces of tiny gear components uniformly. For polishing, the technique employs a dynamic fluid recognized as magnetorheological polishing fluid (MRPF), that has the ability to stiffen in the presence of a magnetic field. Base media, iron and abrasive particles are utilized to synthesize the MRPF. Permanent magnets produce the necessary magnetic field in the finishing zone. Finite element analysis (FEA) is utilized to model the iron and abrasive particles to understand better how they would react in the external magnetic field. FEA is utilized to analyze the magnetic flux density (MFD) distributions and the amount of magnetic force exerting on gear profiles through iron particles (IPs). It has been observed that the IPs present close to the active abrasives are primarily accountable for indenting active abrasives into the workpiece surfaces. In addition, the influence of particle dimension on the stiffness of iron particle chains in MRPF has been investigated. A mathematical model for material removal is developed by utilizing normal finishing force analysis on active abrasives. Lastly, the finishing surface characteristics of gear profiles are examined using an optical profilometer, field emission scanning electron microscope (FESEM) and spectroscopic analysis. Finally, 92.68% improvement in the surface finish is observed.

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Section: Introductionsupporting

confidence: 86%

Section: Analysis Of Magnetorheological (Mr) Polishing Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Material removal analysis during MR polishing of complex gear teeth profiles

Kumar

Yadav

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…This behavior is caused by the application of a strong magnetic field at the nozzle exit that causes an instantaneous increase in the fluid viscosity. The MR fluid jet results in predictable and consistent material removal spots on a workpiece surface, and therefore it can be used to correct the surface shape of a high precision optical element, following estimation of the quantity of material to be removed [34]. Due to insensitivity to the offset distance, this technique may be valuable in finishing complex shapes, especially those with steep concaves and parts with a variety of cavities.…”

Section: Introductionmentioning

confidence: 99%

A Review on Magnetorheological Jet Polishing Technique for Microstructured Functional Surfaces

Song

Lin

et al. 2022

Lubricants

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The magnetorheological jet polishing (MJP) technique, as a revolutionary flexible contact polishing approach, is exceptionally suitable for the smooth and ultra-smooth machining of functional surfaces with tiny or microstructures due to the following essential advantages. Machine tool accuracy is not required and there is nearly no tool wear in addition to high polishing efficiency, minimal surface damage, great surface shape adaptation, superior material removal process selectivity, and so on. This work examines the machining mechanism, the development of machining devices, and the optimization of the process parameters in MJP. This review also covers the MJP technique’s existing limitations and opportunities.

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“…The results indicated that the magnetically stabilized jet was suitable for precision finishing of complex shapes. Kim et al [12] investigated the removal process in magnetorheological jet polishing of BK7 glass specimen and found that mirco-cutting and ploughing were the dominating failure mechanisms. The surface finished by the jet has a surface roughness of RMS 1.3 nm and 30 nm Rp-v.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study on the flow characteristics and the erosive ability of magnetorheological jet

Hou

Lü

et al. 2021

Int J Adv Manuf Technol

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Fluid jet machining has been widely used in machining of hard-brittle materials. However, the diffusion of jet flow significantly affects the erosion capacity. Magnetorheological fluid has been considered to take the role of pure water for carrying abrasive particles, due to its better concentration when the external magnetic field is applied. The present investigation focuses on the flow characteristics of magnetorheological jet, which are involved in the basic aspects of erosion mechanism. Numerical models of excitation coil and jet flow field were established to investigate the fluid pressure distribution on the target surface and the trajectories of laden particles. Experiments were also conducted to verify the simulation results and evaluate the feasibility of MR jet on surface finishing. The results indicated that the utilization of high magnetic intensity can effectively improve the concentration of jet flow and the processing quality of workpiece surface.

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Material removal of glass by magnetorheological fluid jet

Cited by 27 publications

References 28 publications

Material removal analysis during MR polishing of complex gear teeth profiles

Material removal analysis during MR polishing of complex gear teeth profiles

A Review on Magnetorheological Jet Polishing Technique for Microstructured Functional Surfaces

Numerical and experimental study on the flow characteristics and the erosive ability of magnetorheological jet

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