Nanofinishing of freeform/sculptured surfaces: state-of-the-art

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

doi:10.1051/mfreview/2018005

Cited by 14 publications

(7 citation statements)

References 100 publications

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“…The importance of the problem of determining the shape of the working surfaces of magnetic heads, the presence of magnetic field concentrators and elements on them that create the conditions for the formation of zones with increased machining efficiency in a magneto-abrasive tool was shown. Carried out a detailed analysis of superfinishing methods for machining steel surfaces in [7] showed the promise of using compact heads based on high-power permanent magnets for MAM. Similar recommendations are given in [8].…”

Section: Literature Reviewmentioning

confidence: 99%

AISI 1045 Steel Flat Surfaces Machining Using the Magneto-Abrasive Method

Maiboroda

Belajev²,

Dzhulii

et al. 2020

JES

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The results of the study of using the end-type heads based on permanent magnets for polishing flat surfaces of ferromagnetic parts on standard metal-working equipment are presented in the work. The possibility of a highly efficient achievement of the roughness of flat surfaces up to Ra < 0.05 μm with the initial Ra > 1–2 μm with removing of the heredity of the machining in the form of microwaves obtained in the face milling operation was shown. Based on the results of the analysis of the process of dispergation of the material was analyzed the influence of the magnetic field gradient the intensity of the magneto-abrasive machining of flat ferromagnetic surfaces by heads, which form a magneto-abrasive tool in the shape of a “brush” and “half of torus”. The influence of technological process parameters: the rotation speed of the working heads, the sizes of the working gap, the technological feed on the character of the change in the microgeometry of the machined surface were investigated. The machining conditions, under which occur the preferential machining of micro peaks or micro valleys on a rough surface, were identified. It was determined that the rational conditions of the magneto-abrasive machining of flat ferromagnetic surfaces are: the rotation speed of the working heads 900 rpm, the gap size between the machined surface and the working surface of the head 2.5–4.0 mm and the working feed 10–15 mm/min. Keywords: finishing, roughness, polishing, permanent magnet, magneto-abrasive tool.

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Section: Literature Reviewmentioning

confidence: 99%

AISI 1045 Steel Flat Surfaces Machining Using the Magneto-Abrasive Method

Maiboroda

Belajev²,

Dzhulii

et al. 2020

JES

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“…Bevel gears are used in many diverse applications such as differential drives in an automobile, rotorcraft drive system, locomotives, marine applications, railway track, etc. The human implants components require nanoscale surface roughness as per ASTM requirements [13,40]. For medical industries, AFM process is capable of finishing knee joint to the nanometer scale by applying the magnetic field around the medium [7,30].…”

Section: No Significant Improvement With Magnetic Materialsmentioning

confidence: 99%

“…Significant elements of the AFM for controlling process technology were machine, tooling and abrasive medium [36][37][38][39]. Multiple investigations carried out by the researchers to identify the effects of process parameters like extrusion pressure, the number of cycles, viscosity, abrasive concentration and grain size on the output responses; surface finish and material removal during the experiment [40][41][42][43][44]. The AFM processes with their experimental values of parameters are explained in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Study on influential parameters of hybrid AFM processes: a review

Kumari

Chak

2019

Manufacturing Rev.

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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.

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“…Анализ ранее выполненных исследований по финишной обработке плоских поверхностей показал целесообразность использования магнитных головок торцевого типа [5][6][7][8][9][10].…”

Section: Introductionunclassified

Flat surfaces machining by the magneto-abrasive method with permanent magnet end-type heads 3. The influence of the types of the working heads on the effectiveness of the magneto-abrasive machining

Maiboroda¹,

Dzhulii²,

Zelinko³

et al. 2021

M&AT

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Investigations of the magneto-abrasive machining (MAM) process of ferromagnetic flat surfaces by three types of end heads were carried out. The nature of the change in the magnitude of the magnetic induction in the working zones was determined. The influence of technological parameters of the machining process was investigated, such as the feed rate of the working heads, the frequency of their rotation about their axis, the size of the working gaps on the change in the parameters of the microroughness of the machined surfaces - Sa, Sp, Sv, the frequency distribution of heights microroughness and size of the supporting surface of the profile. It was shown that the level of roughness achieved after MAM is practically the same and does not exceed, under rational conditions of the MAM process, the values Sa = 0.05-0.07 μm, Sp = 0.2 μm and Sv = 0.39 μm with the only difference that the MAM process by the heads of the "brush-half of torus" type are being realized with increased productivity, especially in terms of reducing waviness and individual elements of the heredity of machining, determined by such factors as depth and feed rate during milling. The kinetics of the formation of a microprofile of surfaces is shown under various technological conditions of the MAM process.

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Nanofinishing of freeform/sculptured surfaces: state-of-the-art

Cited by 14 publications

References 100 publications

AISI 1045 Steel Flat Surfaces Machining Using the Magneto-Abrasive Method

AISI 1045 Steel Flat Surfaces Machining Using the Magneto-Abrasive Method

Study on influential parameters of hybrid AFM processes: a review

Flat surfaces machining by the magneto-abrasive method with permanent magnet end-type heads 3. The influence of the types of the working heads on the effectiveness of the magneto-abrasive machining

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