Study of the rheological properties and the finishing behavior of abrasive gels in abrasive flow machining

Wang, A-Cheng; Liu, C. H.; Liang, K. Z.; Pai, Shiuan Hau

doi:10.1007/bf03177380

Cited by 28 publications

(10 citation statements)

References 15 publications

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“…They claimed that the percentage abrasive concentration and extrusion media pressure are significant for improvement in surface roughness and MRR. Wang et al 56 developed power law model to study the relation of shear rates and viscosities on various abrasive gels in CFD-ACE + software. They found that high-viscosity abrasive gel generates a higher shear force compared to low-viscosity abrasive gel.…”

Section: Developments In Aff Processmentioning

confidence: 99%

Recent developments in abrasive flow finishing process: A review of current research and future prospects

Sambharia

Mali

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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The abrasive flow finishing processes are advanced finishing techniques widely used as finishing solutions in high-end industries like aerospace, automobile, tool and die, and prosthetic. Abrasive flow finishing processes are mainly used for polishing, deburring, removal of cast layers, radiusing and finishing intricate shapes by flowing abrasive laden viscoelastic carrier over the surfaces to be finished. Although abrasive flow finishing have a wide range of applications and could be used in every shop floor as a finishing solution, their usage is limited owing to high initial and running costs associated with them. This article attempts to present a novel classification of abrasive flow finishing processes based upon the use of different energy and tooling, and highlights the critical research outcomes in each category. The physical abrasive flow finishing modeling, developments in abrasive flow finishing processes, and their hybridization with the other manufacturing processes are discussed. Finally, the future research challenges including the development of low-cost alternative media, development of tooling and fixture, and environmental issues in the area of abrasive flow finishing are highlighted.

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Section: Developments In Aff Processmentioning

confidence: 99%

Recent developments in abrasive flow finishing process: A review of current research and future prospects

Sambharia

Mali

2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…Jain et al [1] conducted an investigation to identify the effectiveness of increasing material removal (MR) and decreasing surface roughness by modifying some key input parameters of the AFM process. Wang [2][3][4][5] developed semi-solid gels mixed with abrasives to apply as abrasive media in AFM, with two reciprocating hydraulic cylinders that could push the gel abrasives through passageways to finish complex surfaces. Since the inside of the gel was filled with a high number of abrasive particles, such as silicon carbides or alumina oxides, it became a high viscosity gel medium that could induce much more intensive shear forces to abrade the working surface, and therefore, the working surface could be polished effectively during the reciprocating motion in AFM.…”

Section: Introductionmentioning

confidence: 99%

Study of the Polishing Characteristics by Abrasive Flow Machining with a Rotating Device

et al. 2022

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Since only uni-direction motion is produced by traditional abrasive flow machining (AFM), so the polishing effects of the inner hole is not easy to achieve uniform roughness of the whole surface after polishing. Therefore, in this study, a rotating device with a DC servo motor was set up in the AFM to increase the tangential forces on the machining surface, and therefore, improve the uniform surface roughness and polishing efficiency. The rotating device was designed by a group of transmission gear set and a DC servo motor to create a rotational finishing path for the abrasive medium. The rotational motion of an abrasive can create different tangential forces on the working surface, inducing a more complex polishing path than that of traditional AFM. In addition to rotational speed, a servo motor can also change rotation directions in one working process, causing an abrasive medium to create many irregular finishing paths in the AFM. The experimental results showed that the surface roughness of the workpiece was significantly decreased with an increase in the rotational speed. Additionally, the results also showed that the surface roughness (SR) of the inner hole decreased from 0.61 μm Ra to 0.082 μm Ra after 20 machining cycles, the surface roughness improvement rate reached 87% at 15 rpm rotational speed, by applying a 1.5:1 silicone gel/abrasive concentration ratio and #60 abrasive mesh in the experiments. This study created excellent polishing efficiency by using a servo rotational device with AFM to produce good surface quality.

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“…Similarly, Tzeng et al 9 developed a selfmodulating abrasive medium whose viscosity can be adjusted during the preparation of the media. Wang et al 10 developed two new abrasive media -pure silicone rubber P-Silicone and A-Silicone mixed with additives SiC particles in the concentration of 50%. Improved surface finish is observed when components are finished with A-silicone abrasive.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent rheological properties of viscoelastic polymer based flexible abrasive media for finishing process

Santhosh

Hiremath

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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The objective of the present investigation is to develop and study the thermal and rheological properties of the in-house developed flexible abrasive media. It is a mixer of viscoelastic polymer and plasticizer mixed with micro-abrasive particles, used for removing debris and irregularities present on internal and external complex surfaces used in the aerospace, automotive and medical industries. This paper presents, morphology of the developed abrasive media is captured using the Scanning Electron Microscope (SEM), thermal properties of the abrasive media are studied using Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) analysis along with tensile properties of the abrasive media ascertained using the universal testing machine. The rheological properties of the media play a major role in media flow over the intricate shapes and removing the material from the surface. To understand the media behavior, further rheological properties such as viscosity, shear stress, storage modulus, loss modulus, loss tangent, and complex viscosity are ascertained with varying shear rate and frequency at different temperature using rheometer. The TGA and DSC results shows abrasive media has good thermal stability and possibility of using the media for finishing process under lower temperature <100 °C. Rheological studies shows the shear thinning behaviour of the media and elastic solid behavior (G′ > G′′) at different temperatures which is suitable for finishing the complex internal and the external features efficiently and effectively. The developed abrasive media is used to finish the hydraulic components which are difficult to access with conventional tools and the results of finishing process are presented.

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Study of the rheological properties and the finishing behavior of abrasive gels in abrasive flow machining

Cited by 28 publications

References 15 publications

Recent developments in abrasive flow finishing process: A review of current research and future prospects

Recent developments in abrasive flow finishing process: A review of current research and future prospects

Study of the Polishing Characteristics by Abrasive Flow Machining with a Rotating Device

Temperature-dependent rheological properties of viscoelastic polymer based flexible abrasive media for finishing process

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