Study on influential parameters of hybrid AFM processes: a review

Abstract

The abrasive flow machining (AFM) processes are ultra-precise finishing techniques widely used as finishing solutions for micro/nano finishing of inaccessible contours on difficult to machine components. The AFM processes use highly visco-elastic properties of the abrasive laden medium as a cutting tool for deburring, edge rounding and polishing the surface. Due to the design of workpiece holder and hybridization of basic AFM, the complex shear modulus of the abrasive laden medium can locally be influenced and thus a targeted removal of material from workpiece can be achieved, as a result, there was improved performance, productivity, surface integrity, and texture. This article addresses the detailed classification of AFM processes based on the use of different energy and tooling and highlights the critical outcomes in each category. The objective of this article is to review and summarize various process parameters of AFM processes like extrusion pressure, medium flow volume, medium flow rate, number of cycle, viscosity, workpiece geometry, etc. and their effects on roughness value and material removal rate. Key capabilities and noted findings concerning various AFM processes in addition to their applications and future challenges are also discussed in this paper.

2017A Alloy surface layer after flow burnishing with glass microspheres

“…The results of AFM depend on the type of abrasive material and medium, grain concentration in the paste, grain size, number of working cycles, pressure, and flow velocity [17][18][19][20]. Several variants of the classical AFM have been developed; for example, magnetic [21][22][23], rotary [24,25] and hybrid AFM [26][27][28]. Their comprehensive characteristics such as parameters, results, and applications have been presented in several studies [29][30][31][32].…”

Iron-Sepiolite High-Performance Magnetorheological Polishing Fluid with Reduced Sedimentation

“…It has been shown that the process of removing MR material by polishing is a result of the penetration of abrasive particles into the workpiece surface. The resulting surface roughness of the workpiece is primarily determined by the size of the abrasive particles and the force acting on the abrasive particles [ 18 ].…”

Experimental investigations on finishing of a brass specimen by magneto-rheological honing technique

“…Moreover, these techniques are uneconomical as well as time-consuming when the finishing value is required in order of micrometer/nanometer. The finishing of complex-shaped specimens and materials that possess properties like high level of softness and complexity in shape impose unique challenges that cannot be met with traditional finishing techniques 1, 2 . To address the limitations of conventional finishing techniques, researchers have developed many advanced magnetic field (MF)-assisted abrasive-based finishing processes which fully control the finishing forces to achieve the desired level of finish.…”