Experimental and theoretical investigations into internal magnetic abrasive finishing of a revolver barrel

Kajal, Sahil; Jain, V.K.; Ramkumar, J.; Nagdeve, Leeladhar

doi:10.1007/s00170-017-1220-2

Cited by 29 publications

(11 citation statements)

References 22 publications

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“…It was concluded that R a , and surface morphology of the component depend on the type and abrasive size. Similar kind of investigations were reported by Kajal et al and Ahmad et al 26,27 From the literature, it is observed that very few authors have investigated the surface finish capabilities of both magnetic and nonmagnetic materials and the influence of process variables on surface finish improvement. Therefore, the present work discusses in detail about the surface characteristics of MS and Al 2024 while MAF processing.…”

Section: Introductionsupporting

confidence: 73%

Surface texture improvement of magnetic and non magnetic materials using magnetic abrasive finishing process

Anjaneyulu

Venkatesh

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The present study focused on surface texture characteristics of magnetic material, Mild steel (MS) as well as nonmagnetic material, Aluminum 2024 (Al 2024) alloy with the application of a laboratory-developed magnetic abrasive finishing (MAF) process. MAF is one of the unconventional finishing processes to attain a satisfactory finishing level up to nanoscale. In MAF, the surface finish is controlled by a flexible magnetic abrasive brush (FMAB) which has a combination of abrasives (Al2O3, SiC, etc.) and magnetic particles (iron powder). The experiments were planned using (L27) full factorial design, different levels of weight percentage of abrasives (20–30%), speed of the electromagnet (180–2100rpm), and electromagnet supply voltage (30–50 V) were varied to enhance the surface responses. The responses considered were % improvements of change in the surface finish (%ΔRa), change in average peak to valley height (%ΔRz), change in total profile height (%ΔRt), and change in mean square root surface finish (%ΔRq). Analysis of variances (ANOVA) was evaluated and discussed. It is observed that the speed of the electromagnet and voltage are the most influencing variable parameters that most impacted on the responses. Surface roughness was measured before and after the MAF processing of MS and Al 2024 using a Suftronic S-100 surface roughness tester. The obtained surface morphology was examined by Scanning Electron Microscopy (SEM). It was observed that MS has %ΔRa = 83, %ΔRz = 65, %ΔRt = 65.5 and %ΔRq = 72.6 while Al 2024 has %ΔRa = 65, %ΔRz =50, %ΔRt = 51 and %ΔRq = 55 with noticeable surface texture improvement compared to the initial surface roughness obtained using surface grinding process.

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Section: Introductionsupporting

confidence: 73%

Surface texture improvement of magnetic and non magnetic materials using magnetic abrasive finishing process

Anjaneyulu

Venkatesh

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Magnetic field-assisted finishing can smooth surfaces [ 8 , 9 ], deburr workpiece edges [ 10 , 11 ], and alter surface hydrodynamic properties (e.g., wettability [ 12 ] and adhesion [ 13 ]), tribological properties (e.g., wear [ 14 , 15 ] and friction [ 16 ]), and optical properties [ 17 ]. It has been successfully applied in aerospace [ 18 , 19 ], electronics [ 20 ], textile [ 21 ], military [ 22 ], cosmetics [ 23 ], and the optics industry [ 24 ], improving product longevity and functionality.…”

Section: Introductionmentioning

confidence: 99%

Magnetic field-assisted finishing processes: from bibliometric analysis to future trends

Souza

Silva

Ratay

et al. 2022

J Braz. Soc. Mech. Sci. Eng.

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The need for ultraprecision finishing has grown, and magnetic field-assisted finishing has shown potential for overcoming some challenges. This study evaluates the scientific production and identifies future directions of magnetic field-assisted finishing based on a bibliometric analysis. Using Bibliometrix, network mapping and descriptive analysis were performed on 1558 documents related to magnetic field-assisted finishing-related research published over the past 51 years. The results of the comprehensive literature reviewed showed that the theme exhibits a rising trend of 56% in the last 10 years, being mainly conducted by Chinese, Indian, and American researchers. Different geometries and materials can be finished and which had surface roughness ranges from sub-nanometer- to micrometer-scale. Surface finishing of freeform dies and molds, optical components, and medical devices have been standing out as current process applications in tooling, aerospace, and biomedical industries. AISI 304 stainless steel was the most tested metal. Finally, potential areas of research were identified in the coming years, which could lead to new fields of application for magnetic field-assisted finishing in industry.

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“…It was revealed that decreasing the working gap due to increasing magnetic forces, gives rise to the chances of damage to the surface. In the most recent works by Kajal et al, 9 the MAF process was applied to finish components with a complex shape such as revolver barrel and they investigated the effects of input parameters on helical groves of the barrel. In another attempt, Rotational-magnetorheological abrasive flow finishing (R-MRAFF) process was used to machine freeform surfaces, which improve the surface roughness compared to conventional processes.…”

Section: Introductionmentioning

confidence: 99%

Study on surface roughness and geometrical tolerances of Inconel 718 superalloy polished by magnetic abrasive finishing process

Khoshanjam

Azizi

Bahrami

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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Magnetic Abrasive Finishing (MAF) is an advanced finishing process that has the prominent characteristics such as the ability to machine complex surfaces with complex geometry. Geometric tolerances are among the important parameters in the qualitative evaluation of machining parts. Due to the large number of abrasive edges participating in the finishing process, it is very difficult to achieve accurate geometric tolerances in the MAF process. This problem is especially considerable in workpieces with low machinability such as nickel based superalloys. In this study, the effect of process input parameters such as feed rate, rotational speed, and working gap on surface roughness and geometric parameters such as circularity and cylindricity of the external surfaces of an Inconel 718 shaft was investigated. The results indicate that surface quality and geometric tolerances improve with increasing rotational speed. However, the increase of rotational speed by a certain amount leads to turbulence in the movement of abrasive particles and no significant changes are seen. As well as, by increasing feed rate, surface roughness and geometric tolerance increase. Furthermore, with the working gap increasing due to the reduction of magnetic abrasive brush width, circularity, and cylindricity tolerances increase, but smoother surface roughness is achieved.

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Experimental and theoretical investigations into internal magnetic abrasive finishing of a revolver barrel

Cited by 29 publications

References 22 publications

Surface texture improvement of magnetic and non magnetic materials using magnetic abrasive finishing process

Surface texture improvement of magnetic and non magnetic materials using magnetic abrasive finishing process

Magnetic field-assisted finishing processes: from bibliometric analysis to future trends

Study on surface roughness and geometrical tolerances of Inconel 718 superalloy polished by magnetic abrasive finishing process

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