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Journal articles on the topic 'Magnetic abrasive tool'

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Published: 30 May 2022
Last updated: 31 May 2022

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1

Yin, Cheng, Lida Heng, Jeong Kim, Min Kim, and Sang Mun. "Development of a New Ecological Magnetic Abrasive Tool for Finishing Bio-Wire Material." Materials 12, no. 5 (March 1, 2019): 714. http://dx.doi.org/10.3390/ma12050714.

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This study proposes a new wire magnetic abrasive finishing (WMAF) process for finishing 316L SUS wire using ecological magnetic abrasive tools. 316L SUS wire is a biomaterial that is generally used in medical applications (e.g., coronary stent, orthodontics, and implantation). In medical applications of this material, a smooth surface is commonly required. Therefore, a new WMAF process using ecological magnetic abrasive tools was developed to improve the surface quality and physical properties of this biomaterial. In this study, the WMAF process of 316L SUS wire is separated into two finishing processes: (i) WMAF with ecological magnetic abrasive tools, and (ii) WMAF with industrial magnetic abrasive tools. The ecological magnetic abrasive tools consist of cuttlefish bone abrasives, olive oil, electrolytic iron powder, and diamond abrasive paste. The finishing characteristics of the two types of abrasive tools were also explored for different input parameters (i.e., vibrating magnetic field and rotating magnetic field). The results show that ecological magnetic abrasive tools can improve the initial surface roughness of 316L SUS wire from 0.23 µm to 0.06 µm. It can be concluded that ecological magnetic abrasive tools can replace industrial magnetic abrasive tools.
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2

Saito, T., K. Koike, H. Yamato, A. Kuwana, A. Suzuki, H. Yamaguchi, and Takeo Shinmura. "Development of Gas-Atomized Magnetic Tools." Key Engineering Materials 291-292 (August 2005): 287–90. http://dx.doi.org/10.4028/www.scientific.net/kem.291-292.287.

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The deficiency in the variety of available magnetic abrasive results in a narrow range of finishing performance. To break through this difficulty, this research developed iron-based gas-atomized magnetic tools. The magnetic tool has a spherical shape and micro-crevices on the surface. The micro-crevices perform the role of cutting instead of the edges of the existing magnetic abrasive, thereby achieving abrasive-less finishing. This paper studies the finishing performance of the developed magnetic tool. Compared to the existing magnetic abrasive, this magnetic tool shows more efficient finishing performance in the internal finishing of SUS304 stainless steel tubes used for sanitary piping systems.
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3

Krymskii, M. D. "Shaping of powdered magnetic-abrasive tools. III. Shaping of an annular rotating magnetic-abrasive tool." Soviet Powder Metallurgy and Metal Ceramics 30, no. 9 (September 1991): 756–60. http://dx.doi.org/10.1007/bf00794215.

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4

Luo, Zhong Ping, and Ya Lin Yao. "A Study on the Methods for Precise Sorting of Synthetic Diamond Abrasives." Key Engineering Materials 304-305 (February 2006): 66–70. http://dx.doi.org/10.4028/www.scientific.net/kem.304-305.66.

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In an abrasive tool the abrasive is the main part undertaking grinding work, thus, the grinding effects mainly depend on the types and properties of the abrasive. The strength and fracture property of the abrasive grain in a synthetic diamond abrasive tool have a direct influence on the operational performance of the tool. Generally, it is expected that the strength and protrusion height of the grain are as same as possible. The strength and fragmenting property of the abrasive grain hinge on its crystal shape and regularity and completeness, internal vice, impurity content and impurity distribution pattern. The abrasive grains must be sorted and classified to make their grain sizes and their properties consistent with each and all. In this paper, the author discusses the basic properties and related performances of synthetic diamond abrasives. Elementary discussion is made separately on improving the vibration sorting, introducing the magnetic separation, applying the heavy liquid separation, exploring the floatation technology and using the selective fragmentation principle. In addition, here are presented the basic methods for precise sorting of synthetic diamond abrasives and their general principles. Practices have proved these methods effective and feasible.
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5

Krymskii, M. D. "Magnetic properties of a powder magnetic-abrasive tool." Powder Metallurgy and Metal Ceramics 33, no. 1-2 (1995): 33–36. http://dx.doi.org/10.1007/bf00559704.

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6

Chai, Jing Fu, Qiu Sheng Yan, Ling Ye Kong, and Min Li. "Research on the Constraint Mechanism of Abrasive Particle of MR Effect-Based Tiny-Grinding Wheel." Advanced Materials Research 135 (October 2010): 46–51. http://dx.doi.org/10.4028/www.scientific.net/amr.135.46.

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To improve the effect of magnetorheological finishing (MRF), it is necessary to control the behavior of abrasive particle effectively in machining process. This article described the machining principle of semi-bond abrasives under the MR effect, then, analyzed the magnetic field of the polishing tool. Based on the magnetic field theory, the constrained model of abrasive particle was established, consequently, the force and the machining behavior of abrasive particle were analyzed. And an experiment was carried out to analyze the effect of the abrasive behavior on the material removal. The results show that the experimental results are identical with the theoretical analysis. Therefore, the control of the particle behavior in process is proved to be available.
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7

Ding, Y. H., Xin Gai Yao, G. Ya, and P. Lu. "Investigation of a New Kind of Magnetic Abrasive Grains Used for Finishing Inner-Hole Surface." Key Engineering Materials 487 (July 2011): 289–92. http://dx.doi.org/10.4028/www.scientific.net/kem.487.289.

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Magnetic abrasive grain is a kind of tool for magnetic abrasive finishing (MAF). The lifetime of the grains is the choke point which restricts its finishing efficiency and the surface quality processed by MAF .Therefore, a kind of magnetic abrasive grains based on Cr and Ni elements is investigated. The interrelated experimental results show: the new magnetic abrasive grains is a practical finishing tool with longer lifetime, higher finishing efficiency, better abrasive resistance compared with traditional magnetic abrasive grains. It supplies a power for promoting the development of MAF.
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8

Han, Guang Chao, Ming Sun, and Jing Dong Li. "Experimental Research on the Robotic Compound Polishing Process with Mixed Magnetic Abrasive." Advanced Materials Research 129-131 (August 2010): 118–23. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.118.

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The quality and the efficiency of the polishing process are important to the lead time of the rapid tooling. Robotic polishing process with free abrasive is adapted to the finishing of complex mould surface, in which the soft polishing tool is widely used. But the stability and the efficiency of the process should be improved further. According to the moving and grinding characters of the free abrasive, the mixed magnetic abrasive and the minitype electromagnetic field are combined to the robotic polishing process. The mixed magnetic abrasive are made up of magnetic grain and hard abrasive, which can enhance the effective cutting and grinding process of the three-body abrasion under the effect of magnetic field. The robotic compound polishing process with mixed magnetic abrasive is presented in this paper. The experiments are tested to study the distribution of the minitye magnetic field and the polishing efficiency of the complex polishing process. The results show that the polishing efficiency of the process can be improved obviously where the effective working intensity of the electromagnetic field reaches 400Gs.
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9

Xu, L. J. "Study on the Magnetic Abrasive Finishing Based on 5-DOF Machine Tool." Materials Science Forum 628-629 (August 2009): 317–22. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.317.

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Magnetic abrasive finishing (MAF) is one of the advanced finishing processes, which produces a high level of surface quality. The technology is researched and applied just in recent years and it has good effect at the complex surface product manufacturing due to its flexibility and self-adaptability. Based on research about the theory and characteristic of magnetic abrasive finishing and 5-DOF Machine Tool, this study set up the interpolation mathematic model and space-line interpolations and circular arc interpolations of the tool-path for magnetic abrasive finishing were researched.
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10

Yu, Juan, Qiu Sheng Yan, Jia Bin Lu, and Wei Qiang Gao. "Research on Material Removal of a New Micro Machining Technology Based on the Magnetorheological Effect of Abrasive Slurry." Key Engineering Materials 364-366 (December 2007): 914–19. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.914.

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Based on the magnetorheological (MR) effect of abrasive slurry, the particle-dispersed MR fluid is used as a special instantaneous bond to cohere abrasive particles and magnetic particles so as to form a dynamic, flexible tiny-grinding wheel to polish optical glass, ceramic and other brittle materials of millimeter or sub-millimeter scale with a high efficiency. Experiments were conducted to reveal the effects of different process parameters, such as grain sizes of abrasive particles, machining time, machining gap between the workpiece and the rotation tool, and rotation speed of the tool, on material removal rate of glass surface. The results indicate the following conclusions: material removal rate increases when the grain size of abrasives is similar to that of magnetic particles; machining time is directly proportional to material removal, but inversely proportional to material removal rate; machining gap is inversely proportional to material removal; polishing speed has both positive and negative influence on material removal rate, and greater material removal rate can be obtained at a certain rotation speed. In addition, the difference of the machining characteristics between this new method and the traditional fixed-abrasive machining method is analyzed.
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11

Maiboroda, Viktor S. "Rheological Properties of a Powder Magnetic Abrasive Tool." Powder Metallurgy and Metal Ceramics 42, no. 5/6 (May 2003): 315–21. http://dx.doi.org/10.1023/a:1025736116399.

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12

Maiboroda, V. S., V. Ya Shlyuko, N. L. Taranenko, and O. V. Stepanov. "Electrical resistivity of a particulate magnetic-abrasive tool." Soviet Powder Metallurgy and Metal Ceramics 31, no. 4 (April 1992): 353–56. http://dx.doi.org/10.1007/bf00796291.

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13

Jo, S. R., S. L. Ko, and Yuri M. Baron. "Effective Deburring of the Burr at Intersecting Hole by Permanent Magnet Inductor." Advanced Materials Research 24-25 (September 2007): 29–38. http://dx.doi.org/10.4028/www.scientific.net/amr.24-25.29.

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The sharp burrs produced by plastic deformation during machining of the precision components deteriorates the precision and performance of a machine. Thus, effective removal of the burrs may improve productivity and performance of the machinery. This study was conducted based on the experiment to remove fine burrs produced during machining process using the magnetic abrasive finishing method. The magnetic abrasive finishing using the abrasive feature of an abrasive and the magnetic nature of iron is an abrasive method to brush the burrs with iron powder that has a cohesive power due to the line of induction. The purpose of this study is to remove the burrs at intersecting holes which are difficult to access with tools, using the magnetic abrasive finishing method. Special tool is designed for deburring micro burr at intersecting holes. To find the proper deburring condition, gap distance, rotational speed of inductor, components of powder and effect of coolant are analyzed.
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14

Liu, G. Y., Zhong Ning Guo, Yuan Bo Li, and J. W. Liu. "Composite Tools Design for Electrolytic Magnetic Abrasive Finishing Process with FEM." Advanced Materials Research 325 (August 2011): 536–41. http://dx.doi.org/10.4028/www.scientific.net/amr.325.536.

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In hybrid process of electrolytic magnetic abrasive finishing (EMAF), there are usually two structures on the tool design, separated or composited. This paper has been focused on the design of the composite tool. How to make electrolyte reach working area is a problem which should be solved for the EMAF process when the composite tool is used, therefore a hollow structure of magnetic pole has been put forward as one possible solution. To understand the effects of the structure parameters of the tool on the abrasive brush of EMAF, Finite Element Method (FEM) has been employed to establish the magnetic field model and analyze the distribution of magnetic induction on the workpiece surface and magnetic pole.
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15

Zhao, Xuefeng, Hao Qin, Yong Yang, Ke You, Xiaolong Yin, and Yin Yuan. "Study on magnetic preparation of dual disk based on silica gel magneto-elastic abrasive particles." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 39, no. 6 (December 2021): 1304–11. http://dx.doi.org/10.1051/jnwpu/20213961304.

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Magneto-elastic abrasive grains have magnetism, low elastic modulus and excellent abrasive performance, and have the characteristics of bonded abrasive grains and loose abrasive grains. The dual-disk magnetic preparation greatly improves the preparation quality and efficiency. Firstly, the magneto-elastic abrasive particles are introduced into the edge preparation of the dual-disk magnetic tool, and the preparation method of 4035 silica gel magneto-elastic abrasive particles is proposed. According to the microscopic characteristics of the magneto-elastic abrasive particles, the finite element software ABAQUS is used to establish the magneto-elastic abrasive particles. The meso-level representative volume element (RVE) model is built to analyze the stress and strain law of magneto-elastic abrasive particles under tension and compression. Secondly, an experimental platform for magnetic preparation of magneto-elastic abrasive particles with dual disks was built to analyze the force of magneto-elastic abrasive particles. Finally, Through the magnetic preparation experiment of the magneto-elastic abrasive dual-disk magnetic force, the influence of the disk rotation speed, abrasive particle size and relative magnetic permeability on the cutting edge wear is studied. And compared to the magnetic abrasive particles double-disk magnetic and drag finishing method, the magneto-elastic abrasive particle double-disk magnetic preparation method can obtain the maximum edge wear amount and the maximum surface roughness decreasing amplitude. The research results are of great significance to promote the progress of our country's magnetic high-efficiency processing and magneto-finishing processing technology.
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16

Baron, Yuri M., S. L. Ko, and Jung Il Park. "Characterization of the Magnetic Abrasive Finishing Method and Its Application to Deburring." Key Engineering Materials 291-292 (August 2005): 291–96. http://dx.doi.org/10.4028/www.scientific.net/kem.291-292.291.

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This paper analyzes the effectiveness of using Magnetic Abrasive Finishing (MAF) to remove burrs on drilled holes located on planes. Basic elements of the equipment in this method are a magnetic inductor; powder with magnetic and abrasive properties, which serves as the cutting tool; and the face electromagnetic inductor and the vibrating table, which were developed for deburring and finishing on flat surfaces. The performance of magnetic abrasive powders produced by industry is also evaluated. A new technique was developed to compare the performance of the magnetic abrasive powders and to find the powder that is appropriate for finishing and deburring drilled holes placed on a plane steel surface.
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17

Yamaguchi, H., J. Kang, and F. Hashimoto. "Metastable austenitic stainless steel tool for magnetic abrasive finishing." CIRP Annals 60, no. 1 (2011): 339–42. http://dx.doi.org/10.1016/j.cirp.2011.03.119.

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18

Zou, Yan Hua, and Takeo Shinmura. "Development of a New Ultra-Precision Magnetic Abrasive Finishing Process." Key Engineering Materials 523-524 (November 2012): 256–61. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.256.

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To obtain an ultra-precision surface, this research developed a new type of magnetic finishing tool, “Ultra-precision Magnetic Abrasive Slurry”, for a magnetic field assisted internal finishing process. This ultra-precision magnetic abrasive slurry is made to mix simply the super-minute abrasive grains, super-minute globular iron particles, and oily grinding liquid. When the internal finishing was executed, the automatic mixing phenomenon of the Ultra-precision Magnetic Abrasive Slurry is caused, at the same time, super-minute abrasive grains and minute iron particles were uniformly distributed to the magnetic abrasive slurry. It was confirmed that a smooth mirror internal finishing for a SUS304 stainless steel tube is able to be achieved, by using the Ultra-precision Magnetic Abrasive Slurry that consists of the globular carbonyl iron particles (6μm in mean diameter) and diamond grains (0.25~0.75μm in mean diameter) and the oily grinding liquid. In this study, we examined the influence that the rotational speed of the magnetic pole exerted on the finishing characteristic. The results showed that the ultra-precision surface is successfully made, and the surface roughness has been improved from 320nm Ra to 3.37nm Ra .
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19

Marczak, Michał, Adrian Kopytowski, Rafał Nowicki, and Grigor Stambolov. "The idea of measuring the real induction in the machining gap filled with magnetic material." Welding Technology Review 91, no. 6 (October 5, 2019): 22–28. http://dx.doi.org/10.26628/wtr.v91i6.993.

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The article presents the characteristics of the distribution of magnetic flux density inside the machining gap in the magnetic abrasive finishing (MAF). Based on the analysis of the magnetic field in the empty gap and the distribution of forces in the magnetic circuit, the concept of measuring the real value of magnetic induction in a flexible abrasive tool formed in an external magnetic field was proposed. An indirect way of determining the magnetic induction has been described, which has a significant influence on the force acting on abrasive grains in the process of magnetic abrasive finishing. The advantages and the problems of the applied approach as well as the measurement methodology based on the change in the attraction force of the magnetic field elements as a result of the change in the concentration of abrasive grains and the width of the machining gap are presented.
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20

Chang, Fu Ming, Tung Hsien Tsai, and Sheng Han Chiang. "Sensitivity Analysis of Magnetic Abrasive Finishing Process Parameters." Advanced Materials Research 328-330 (September 2011): 868–80. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.868.

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This paper integrates machine center cutting process and magnetic abrasive finishing(MAF) producing a combined process that improves the magnetic abrasive loss rate(MALR) and roughness(Ra) of aluminum alloy 6061-T6 with ladder shape of different height. The present study shows the features of the development with mathematical model based on response surface methodology (RSM) for correlating the interactive and second order influences of major machining parameters such as different size and shape abrasive of stainless, spindle speed, tool and workpiece gap, feed speed, respectively. The experiments design, regression analysis and analysis of variance are used to develop the relationships between process parameters (abrasive size, spindle speed, tool and workpiece gap, feed speed) and responses (MALR and Ra) in MAF process. Sensitivity analysis has also been carried out using developed empirical equations. The results shows that developed mathematical models can be applied to estimate the effectiveness of process parameters for MALR and Ra with a change of spindle speed affects the MALR more strongly than Ra relatively compare to other parameters.
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21

Uddin, Mohammad, Vincent Santos, and Romeo Marian. "Interplay of Process Variables in Magnetic Abrasive Finishing of AISI 1018 Steel Using SiC and Al2O3 Abrasives." Journal of Manufacturing and Materials Processing 3, no. 2 (March 28, 2019): 29. http://dx.doi.org/10.3390/jmmp3020029.

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This paper investigates the underlying interplay between the key process parameters of magnetic abrasive finishing (MAF) in improving surface quality. The five process parameters considered were the working gap, rotational speed, feed rate, abrasive amount, and abrasive mesh when MAFed independently with two abrasive particles—SiC and Al2O3. A series of experiments were conducted with an in-house built MAF tool. Based on the main effect results, a model predicting roughness reduction was developed. Results show that surface quality improvement and the underlying dominant process parameters seem unique to the abrasive type used. When MAFed with SiC, the abrasive quantity and rotational speed influence the most. On the other hand, when MAFed with Al2O3, the trend is different to SiC, i.e., the abrasive mesh size and the working gap are dominant. The prediction model was well validated by independent experiments, indicating its accuracy in estimating and optimizing the process outcome. MAF is a simple process with a complex interplay between parameters. This is very crucial when abrasive type, size, and amount to be used are concerned, which warrants a deeper investigation in terms of underlying dynamics, interactions, and the deformation of abrasive, magnetic, and workpiece materials.
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22

Ma, Lei, Tatsuya Furuki, Takashi Kure, Toshiki Hirogaki, and Eiichi Aoyama. "Development of Polishing Tool Capable of Self-Adaptive to Processing Site Using Steel Balls and Magnetic Force." Advanced Materials Research 1136 (January 2016): 466–71. http://dx.doi.org/10.4028/www.scientific.net/amr.1136.466.

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There has been the requirement in recent times for environmentally friendly methods for finishing free-form surfaces such as those of molding dies [1]. This has led to interest in the development of a new polishing technology that utilizes less abrasive slurry and magnetic abrasive finishing. However, it is well known that the traditional magnetic polishing method is unstable and produces insufficient surface smoothness. In the present paper, we discuss the causes of the instability of conventional magnetic polishing. We also propose a self-adaptive polishing tool comprising a brush with steel balls and a coating of thin slurry and present the results of its use to polish various incline surfaces on a three-axis machining center. The proposed self-adaptive polishing tool was found to be effective for polishing a free-form surface using less abrasive slurry.
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23

Pattanaik, Laxmi Narayan, and Himanshu Agarwal. "Magnetorheological Finishing (MRF) of a Freeform Non-magnetic Work Material." Journal for Manufacturing Science and Production 15, no. 3 (September 15, 2015): 249–56. http://dx.doi.org/10.1515/jmsp-2014-0034.

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AbstractOne of the newly developed methods for obtaining super-finished shiny surfaces for non-magnetic freeform jobs is magnetorheological finishing (MRF). MRF is an advanced finishing process in which the grinding force is controlled by magnetic field. The material removal in MRF is governed by the magnetorheological (MR) fluid which mainly consists of carbonyl iron (CI), abrasive particles, carrier fluids and additives. It is a precision-finishing process that can finish complicated geometries or difficult-to-approach regions. MRF process is capable of giving nanometre-scale surface finish. The process makes use of an MR fluid as a tool that acts as a flexible magnetic abrasive brush that provides finishing action. The relative motion between the finishing medium and the work can be obtained either by rotating the work, rotating the finishing medium or both. In the present paper, a set-up has been developed for MRF application using a pillar-drilling machine. Experiments were conducted to finish freeform jobs of copper alloy using the developed process. The effects of various process parameters, viz composition of the MR fluid, rotational speed of work and vessel containing MR fluid, mesh size of abrasives on surface finish, were explored.
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24

JAYSWAL, S. C., V. K. JAIN, and P. M. DIXIT. "MAGNETIC ABRASIVE FINISHING PROCESS — A PARAMETRIC ANALYSIS." Journal of Advanced Manufacturing Systems 04, no. 02 (December 2005): 131–50. http://dx.doi.org/10.1142/s0219686705000655.

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Magnetic Abrasive Finishing (MAF) is one of the non-conventional finishing processes, which produces a high level of surface quality and is primarily controlled by magnetic field. In MAF, workpiece is kept between the two poles (N and S) of a magnet. The working gap between the workpiece and the magnet is filled with magnetic abrasive particles. A magnetic abrasive flexible brush (MAFB) is formed, acting as a multipoint cutting tool, due to the effect of magnetic field in the working gap. This paper deals with theoretical investigations of the plane MAF process to know the effect of the process parameters on the surface quality produced. The magnetic field is simulated using finite element model of the process. The magnetic field is also measured experimentally to validate the theoretical results. A series of numerical experiments are performed using the finite element and surface roughness models of the process to study the effect of flux density, height of working gap, size of magnetic abrasive particles and slots (size and location) in the magnetic pole on the surface quality. Based on the results, it is concluded that surface roughness value (R max ) of the workpiece decreases with increase in flux density and size of magnetic abrasive particles. Surface roughness value (R max ) decreases with decrease in working gap. R max value also decreases when the magnet has a slot as compared to the magnet having no slot. Present study would help in understanding the effect of the various parameters on surface roughness value without doing a number of real-life experiments.
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25

Chen, Y., X. Wang, and C. J. Zhang. "Polishing Processing to Internal Surface of Non-Magnetic Pipe by Magnetic Abrasive Finishing." Advanced Materials Research 53-54 (July 2008): 137–40. http://dx.doi.org/10.4028/www.scientific.net/amr.53-54.137.

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It is very difficult matter that polishes the internal surface of the pipe, especially to the thin pipe with the traditional surface technology. Because a usual tool cannot into the inner surface of the thin pipe and automation do not achieved easily. This paper brings up a new method that utilize the characteristic of the magnetic force line may penetrate the non-magnetic material, may using the magnetic abrasive finishing (MAF) method complete to the inner surface of the thin pipe precise polishing. The magnetic abrasive finishing does not need special equipment to complete the complex shape internal surface polishing. Moreover, we already obtained the famous processing effect through the experiment. Meanwhile this paper analyses some factors of influences efficiency, and propose some solution method.
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26

Liu, Jiangnan, and Yanhua Zou. "Study on Mechanism of Roundness Improvement by the Internal Magnetic Abrasive Finishing Process Using Magnetic Machining Tool." Machines 10, no. 2 (February 2, 2022): 112. http://dx.doi.org/10.3390/machines10020112.

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An internal magnetic abrasive finishing process using a magnetic machining tool was proposed for finishing the internal surface of the thick tubes. It has been proved that this process is effective for finishing thick tubes, and it can improve the roundness while improving the roughness. However, the mechanism of improving the roundness is not clear, so it is necessary to study it theoretically. In this research, firstly, the roundness curve expression was derived using the principle of roundness measurement by the assumed center method, and the expression of roundness curve expanded by Fourier series was obtained. The influencing factors of roundness improvement were then analyzed. Secondly, the experiments were carried out on SUS304 stainless steel tubes. By confirming the mechanism analysis results and the experimental results, it was concluded that the internal magnetic abrasive finishing process using the magnetic machining tool was effective for improving the roundness of the thick tubes whose thickness is from 10 mm to 30 mm. As the thickness of the tube increased, the improvement in roundness decreased.
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27

Zhao, Yugang. "NEW KIND OF MACHINE TOOL FOR MAGNETIC ABRASIVE FINISHING COMPLEX SURFACE." Chinese Journal of Mechanical Engineering 36, no. 03 (2000): 100. http://dx.doi.org/10.3901/jme.2000.03.100.

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28

Gao, Wei Qiang, L. Meng, Qiu Sheng Yan, J. H. Song, and T. X. Qiu. "The Research of NC Magnetic Abrasive Finishing for Mould Parting Surface." Key Engineering Materials 389-390 (September 2008): 199–204. http://dx.doi.org/10.4028/www.scientific.net/kem.389-390.199.

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In this paper, a new kind of NC magnetic abrasive finishing method with meshy polishing track to grind the parting face of mould was presented, and a new simple polishing tool using permanent magnet was also developed. Using the magnetic polishing tool, 3D NC polishing experiments was conducted on 2D parting surfaces. Experimental results reveal the relationship between several main parameters (rotational speed of magnetic pole, working gap, feeding speed and number of polishing times) and surface roughness. This study is expected to be helpful to improve the efficiency of finishing process, reduce worker's labor intensity, realize the effective control of finishing process and obtain fine quality of workpiece surface.
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29

Lu, Cong Da, Xiao Jun Gong, Hong Jia, and Guo Zhong Chai. "Study on the Fluid Magnetic Abrasive Polishing Technology." Advanced Materials Research 102-104 (March 2010): 495–501. http://dx.doi.org/10.4028/www.scientific.net/amr.102-104.495.

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Fluid magnetic abrasive (FMA) is a new precision finishing process. It has the capability of processing free shape surfaces and complex cavities. Due to its strong adjustability and controllability, FMA could be regarded as the final process of machining which could greatly improve the surface quality of workpiece. The paper first introduces the component and machining mechanism of FMA, secondly it describes the model of the material removal in the process, thirdly it presents the devices of FMA polishing. At the end, a grinding head tool based machining mode is proposed for realizing the polishing of internal cavity.
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30

Zelinko, Andrii, Florian Welzel, Dirk Biermann, and Viktor Maiboroda. "Influence of Process Parameters and Initial Surface on Magnetic Abrasive Finishing of Flat Surfaces on CNC Machine Tools." Journal of Manufacturing and Materials Processing 5, no. 4 (October 14, 2021): 108. http://dx.doi.org/10.3390/jmmp5040108.

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Magnetic abrasive finishing (MAF) shows a high potential for use on computerized numerical control (CNC) machine tools as a standard tool to polish workpieces directly after the milling process. This paper presents a new MAF tool with a single, large permanent magnet and a novel top cover structure for finishing the plain ferromagnetic workpieces. The top cover structure of the MAF tool, combined with an optimized working gap, ensures the effect of mechanical powder compaction, which leads to a significant increase in process capability and surface roughness reduction. The influence of the process parameters such as feed rate, equivalent cutting speed, working gap (including for three grain sizes) and the gap to the magnet was investigated. In addition, the influence of the initial surface after face milling, end milling, ball end milling and grinding on the surface quality after MAF was investigated. Furthermore, three typical surfaces after milling and MAF were analyzed. By magnetic abrasive finishing, a significant surface quality improvement of the initial milled surfaces to roughness values up to Ra = 0.02 µm and Rz = 0.12 µm in one processing step could be achieved.
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31

Singh, Palwinder, Lakhvir Singh, and Sehijpal Singh. "Preparation, Microstructure Evaluation and Performance Analysis of Diamond-Iron Bonded Magnetic Abrasive Powder." Powder Metallurgy Progress 19, no. 2 (December 1, 2019): 82–89. http://dx.doi.org/10.1515/pmp-2019-0008.

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AbstractThe customary edged tool for machining is uneconomical for harder and hard to machine materials and furthermore the level of surface finish accomplished is not that great. As of late, a lot of consideration in mechanical engineering has been centered on finishing tasks. Not many investigations have been accounted for till date on the advancement of substitute magnetic abrasive powder (MAP). In this paper, to improve the finishing performance, the abrasive powder were prepared by mechanical alloying of diamond powder and iron (Fe) powder, compacting these with universal testing machine (UTM) and then sintered at different temperature in a sintering machine in an inert gas (H2) atmosphere. These compacts were crushed and sieved to obtain various sizes of MAP. This abrasive powder were micro-structurally examined. The results indicate that the densification increases and porosity decreases with increasing temperature. Moreover, the prepared bonded MAP has potential performance as a new MAP for fine finishing in Magnetic Abrasive Flow Machining (MAFM) process.
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32

Houshi, Mohannad Naeem. "A Comprehensive Review on Magnetic Abrasive Finishing Process." Advanced Engineering Forum 18 (September 2016): 1–20. http://dx.doi.org/10.4028/www.scientific.net/aef.18.1.

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In the nanotechnology era, the need for products with high quality and surfaces with free-from damage has become an urgent necessity. Many components in the precision industries such as electronics, automobile, medical, and aviation require high surface finish to meet their functional requirements, such as, reducing fluid flow resistance, friction, optical losses and increase fatigue strength. However, the scale of such surface quality cannot be achieved by traditional finishing methods. To overcome these limitations, many advanced finishing processes have been developed such as abrasive flow finishing, magnetorheological fluid finishing, magnetic float polishing, and chemical mechanical polishing and magnetic abrasive finishing. Magnetic abrasive finishing (MAF) is one of advanced finishing processes which offers superior surface finish over conventional finishing processes, because of its self-adaptability to finish of different geometric shapes, its a gentle tool which does not impact workpiece surface, its capability to polish advanced engineering materials and its low cost. This article has been focused on MAF, as well as reviewing of advanced finishing processes. The recent researches and challenges of MAF have been discussed as well.
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33

Phan, Van Hieu. "A new tool developed for ultraprecision milling nickel by using magnetic liquid slurries." International Journal of Modern Physics B 35, no. 14n16 (June 12, 2021): 2140034. http://dx.doi.org/10.1142/s0217979221400348.

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In developing a new milling technique that can produce high precision, smoothness, and gloss on nickel workpiece surfaces, a widely used material is in industrial applications, particularly in mold manufacturing, in which the production requires exceptionally high accuracy. In this work, the factors influencing the magnetic material milling process are determined by investigating the distribution of magnetic iron (MIGs) and abrasive grains (AGs) in the working surface of magnetic liquid slurry (MLS). The magnetic liquid slurry (MLS) contained commercially available MIGs successfully applied for milling the surface of magnetic materials with extremely high accuracy. Surface roughness ([Formula: see text] nm) without leaving scratches on the surface after milling.
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34

Lee, Jung In, Jae Seob Kwak, and Dae Min Kang. "Evaluation of Precision Machining Characteristics for MAP of Magnesium Alloy." Materials Science Forum 610-613 (January 2009): 1395–402. http://dx.doi.org/10.4028/www.scientific.net/msf.610-613.1395.

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. It is very difficult to polish the surface of magnesium materials because of its explosion and fragility properties. Magnetic Abrasive Polishing (MAP) process is one of the nontraditional machining technologies newly developed. In the MAP process, a cutting tool that consists of ferrous particles and nonferrous abrasives under oil lubricant is flexible. Because of this flexibility, the tool can remove a very small amount of material from a workpiece and better surface can be produced after polishing the workpiece. In this study, the MAP of a magnesium material was performed. In the experimental verification, design of experimental method was performed to evaluate parameters’effect of the MAP on polishing results of the magnesium material. As a result, it was seen that the MAP was very useful for finishing the magnesium material.
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35

B. Gunjal, Sandip, and Padmakar J. Pawar. "Improving the process performance of magnetic abrasive finishing of SS304 material using multi-objective artificial bee colony algorithm." Engineering review 41, no. 1 (2020): 34–49. http://dx.doi.org/10.30765/er.1511.

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Magnetic abrasive finishing is a super finishing process in which the magnetic field is applied in the finishing area and the material is removed from the workpiece by magnetic abrasive particles in the form of microchips. The performance of this process is decided by its two important quality characteristics, material removal rate and surface roughness. Significant process variables affecting these two characteristics are rotational speed of tool, working gap, weight of abrasive, and feed rate. However, material removal rate and surface roughness being conflicting in nature, a compromise has to be made between these two objective to improve the overall performance of the process. Hence, a multi-objective optimization using an artificial bee colony algorithm coupled with response surface methodology for mathematical modeling is attempted in this work. The set of Pareto-optimal solutions obtained by multi-objective optimization offers a ready reference to process planners to decide appropriate process parameters for a particular scenario.
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36

Zou, Yanhua. "708 Development of ultra-precision magnetic abrasive finishing process for plate using magnetic using the magnetic machining tool." Proceedings of Ibaraki District Conference 2014.22 (2014): 111–12. http://dx.doi.org/10.1299/jsmeibaraki.2014.22.111.

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37

Ahmed, Baqer Ayad, Saad Kariem Shather, and Wisam Kadhim Hamdan. "Statistical Analysis of Metal Removal during Magnetic Abrasive Finishing Process." Journal of Engineering 26, no. 8 (August 1, 2020): 34–45. http://dx.doi.org/10.31026/j.eng.2020.08.03.

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This work aims to provide a statistical analysis of metal removal during the Magnetic Abrasive Finishing process (MAF) and find out the mathematical model which describes the relationship between the process parameters and metal removal, also estimate the impact of the parameters on metal removal. In this study, the single point incremental forming was used to form the truncated cone made of low carbon steel (1008-AISI) based on the Z-level tool path. Then the finishing was accomplished using a magnetic abrasive process based on the Box-Behnken design of the experiment using Minitab 17 software was used to finish the surface of the formed truncated cone. The influences of different parameters (feed rate, machining step size, coil current, and spindle speed) on metal removal were (32.948, 21.896, 10.587, and 13.907) %, respectively.
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38

Wu, Yong Bo, and Kunio Shimada. "Quartz Wafer Machining Using MCF (Magnetic Compound Fluid) Polishing Liquid Frozen with Liquid Nitrogen." Key Engineering Materials 389-390 (September 2008): 187–92. http://dx.doi.org/10.4028/www.scientific.net/kem.389-390.187.

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This paper deals with the machining of quartz wafers using an MCF (Magnetic Compound Fluid) polishing liquid, frozen with liquid nitrogen. This type of polishing liquid is composed of water-based MF (Magnetic Fluid), iron powder, abrasive particle and α-cellulose, and consequently reacting to magnetic fields. Experiments of polishing quartz wafers using the MCF method were carried out on a previously developed apparatus. The results show that an MCF polishing liquid, frozen with liquid nitrogen, has greater material removal capability than one that has not been frozen. A frozen MCF polishing liquid containing larger abrasive particles yields a higher material removal rate, however the surface roughness deteriorates. The highest material removal rate and the best surface roughness were obtained when the percentage of water, in the frozen MCF polishing tool, was 34.7%.
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39

Nagdeve, Leeladhar, Krishnakant Dhakar, and Harish Kumar. "Development of novel finishing tool into Magnetic Abrasive Finishing process of Aluminum 6061." Materials and Manufacturing Processes 35, no. 10 (May 24, 2020): 1129–34. http://dx.doi.org/10.1080/10426914.2020.1767295.

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40

Ma, Lei, Tatsuya Furuki, Wei Wu, Toshiki Hirogaki, and Eiichi Aoyama. "Estimation of Unsteady and Steady Polishing Force in Magnetic Abrasive Finishing Using a Permanent Magnet End-Mill Tool." Materials Science Forum 874 (October 2016): 178–83. http://dx.doi.org/10.4028/www.scientific.net/msf.874.178.

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Stable finishing is considered difficult to achieve using conventional magnetic abrasive because of its unstable polishing characteristics. In this paper, three different shapes of iron particles are used to produce a magnetic brush to improve stability. The unsteady and steady polishing force produced under the magnetic field of an end-mill type tool is discussed. We also develop prototype equipment combining a high speed camera with a force sensor to analyse micro-changes in the magnetic brush while machining. The relationship between the unsteady or steady polishing force and the polishing capability of the magnetic brush is explored in an attempt to construct a model for predicting polishing forces.
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41

Zou, Yanhua. "C28 Study on an internal magnetic abrasive finishing process of bent tube using the magnetic machining tool." Proceedings of The Manufacturing & Machine Tool Conference 2014.10 (2014): 173–74. http://dx.doi.org/10.1299/jsmemmt.2014.10.173.

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42

Ikonnikov, Alexey, and Sergey Leonov. "Theoretical-Probability Model of Metal Removal During Magnetic-Abrasive Treatment." MATEC Web of Conferences 297 (2019): 09007. http://dx.doi.org/10.1051/matecconf/201929709007.

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The work is devoted to the issue of calculating material removal during magnetic abrasive processing. Cutting grains have random dimensional characteristics, are randomly located on the surface of the tool, the workpiece has an irregular profile. The cutting parts of the grain tops partially remove the chips, and partially elastically-plastic deform the metal. Part of the vertices falls into the risks on the surface of the workpiece formed by the previous machining, and part -into the risks from passing through the previous vertices. This process is determined by the probability of the contact of the top of the grain with the metal. The developed stochastic models make it possible to predict the removal of metal from the treated surface depending on the time and parameters of the operation, which creates the prerequisites for their use in the design of polishing operations.
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43

Ikonnikov, Alexey, and Sergey Leonov. "Theoretical-Probability Model for Calculating Roofness in Magnetic Abrasive Machining." MATEC Web of Conferences 346 (2021): 01045. http://dx.doi.org/10.1051/matecconf/202134601045.

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The work is devoted to the problem of calculating the surface roughness during magnetic abrasive processing. Cutting grains have random dimensional characteristics, are randomly located on the surface of the tool, the workpiece has an irregular profile. The cutting parts of the grains partially remove the chips and partially elastoplastically deform the metal. Some of the vertices fall into the marks on the surface of the workpiece formed by the previous processing, and some - on the marks from the passage of the previous vertices. This process is determined by the probability of contact of the top of the grain with the metal. The developed probabilistic-theoretical model makes it possible to predict the removal of metal from the treated surface depending on the time and parameters of the operation, which creates the prerequisites for their use in the design of polishing operations.
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44

Guo, Ce, Dongliang Zhang, Xiuhong Li, Jing Liu, and Feng Li. "A permanent magnet tool in ultrasonic assisted magnetic abrasive finishing for 30CrMnSi grooves part." Precision Engineering 75 (May 2022): 180–92. http://dx.doi.org/10.1016/j.precisioneng.2022.02.010.

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45

Ahmed, Baqer A., Saad K. Shather, and Wisam K. Hamdan. "Improve the Micro-hardness of Single Point Incremental Forming Product Using Magnetic Abrasive Finishing." Engineering and Technology Journal 38, no. 8A (August 25, 2020): 1137–42. http://dx.doi.org/10.30684/etj.v38i8a.906.

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In this paper the Magnetic Abrasive Finishing (MAF) was utilized after Single Point Incremental Forming (SPIF) process as a combined finishing process. Firstly, the Single Point Incremental forming was form the truncated cone made from low carbon steel (1008-AISI) based on Z-level tool path then the magnetic abrasive finishing process was applied on the surface of the formed product. Box-Behnken design of experiment in Minitab 17 software was used in this study. The influences of different parameters (feed rate, machining step size, coil current and spindle speed) on change in Micro-Vickers hardness were studied. The maximum and minimum change in Micro-Vickers hardness that achieved from all the experiments were (40.4 and 1.1) respectively. The contribution percent of (feed rate, machining step size, coil current and spindle speed) were (7.1, 18.068, 17.376 and 37.894) % respectively. After MAF process all the micro surface cracks that generated on the workpiece surface was completely removed from the surface.
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46

Xing, Baijun, and Yanhua Zou. "Investigation of Finishing Aluminum Alloy A5052 Using the Magnetic Abrasive Finishing Combined with Electrolytic Process." Machines 8, no. 4 (November 19, 2020): 78. http://dx.doi.org/10.3390/machines8040078.

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The magnetic abrasive finishing combined with electrolytic (EMAF) process was proposed to improve the finishing efficiency of the traditional magnetic abrasive finishing (MAF) process. Since the EMAF process contains electrolysis reactions, the machining mechanism of processing different metal is different. In this paper, a series of experiments were conducted to explore the feasibility of using the compound processing tool to finish aluminum alloy A5052, and to preliminary explore the machining mechanism. Surface roughness and material removal are used to evaluate the finishing effect and the finishing efficiency, respectively. The EMAF processing current curve is used to evaluate and analyze the EMAF process. The feasibility of the EMAF processing is proved by the analysis of simulations and the experimental results. Finally, through a series of exploration experiments and parameter optimization experiments, the main conclusions are as follows: (1) Compared with the traditional MAF process, when finishing the surface of aluminum alloy A5052 by the same compound processing tool and at the same experimental conditions (except the electrolysis conditions), the EMAF process, which includes electrolysis reactions, can achieve higher finishing efficiency. (2) In this study, when the working gap is 1 mm and the concentration of NaNO3 solution is 15%, the recommended processing voltage is about 3.4 V.
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47

Sathua, Chandra Sekhar, V. K. Jain, J. Ramkumar, and Ajay Sidpara. "Analysis of forces and surface roughness in magnetic abrasive finishing with a ball-end tool." International Journal of Precision Technology 3, no. 2 (2013): 131. http://dx.doi.org/10.1504/ijptech.2013.053301.

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48

Denkena, B., J. Köhler, and A. Schindler. "Behavior of the magnetic abrasive tool for cutting edge preparation of cemented carbide end mills." Production Engineering 8, no. 5 (July 4, 2014): 627–33. http://dx.doi.org/10.1007/s11740-014-0569-4.

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49

Grover, Vishwas, and Anant Kumar Singh. "Modeling of surface roughness in the magnetorheological cylindrical finishing process." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 233, no. 1 (December 13, 2017): 104–17. http://dx.doi.org/10.1177/0954408917746354.

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The magnetorheological cylindrical finishing process is developed for fine finishing of the internal surface of cylindrical objects. The process uses smart fluid known as magnetorheological polishing fluid. This fluid consists of carbonyl iron (CI) and silicon carbide (SiC) abrasive particles mixed in the base fluid. The magnetorheological cylindrical finishing process consists of an internal finishing tool, which induces magnetic field over its outer surface due to which CI particles experience magnetic force and form chains between the magnetized tool outer surface and inner surface of the cylindrical workpiece. The CI particles push SiC abrasive particles towards the inner surface of the cylindrical workpiece and with the movement of finishing tool inside the cylindrical workpiece, finishing is performed in the process. In the present work, a mathematical model is developed for calculating the change in surface roughness values in the magnetorheological cylindrical finishing process after consideration of forces as acting on SiC particles. To validate the proposed mathematical model, the experimentation is performed by the magnetorheological cylindrical finishing process for finishing the internal surface of cylindrical hardened ferromagnetic steel workpiece. Results of both i.e. mathematical modeling and experimentation are found to be in close agreement with least percentage error of 1.28%. The developed mathematical model is helpful in predicting the process performance, which proves to be useful for industries dealing with internal finishing like injection molding, gas, and liquid pipes, etc.
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50

Montazerolghaem, Hamid, and Esmaeil Soltani. "Design an Apparatus for Obtaining to High Precision Surface of Miniature Parts Based on Magnetized Abrasive Grains Finishing Process." Key Engineering Materials 504-506 (February 2012): 1377–82. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1377.

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Obtaining to high quality surfaces of industrial parts is an important manner for manufacturing involves. Different finishing process are capable to providing the require surface roughness in most cases, considering that, in some special parts, depending on shape, material and dimension of parts, the prevalent methods are limited, especially in finishing of sculptural and curvilinear surfaces. In this research, a new applied apparatus is represented based on magnetized abrasive grains finishing process. In this way, abrasive grains gathering around a rotational cylindrical tool thanks to a permanent magnetic field and work-piece, which usually is a formed thin metal sheet, located on a rotary table. Therefore, coinciding of those motions providing the require machining forces for finishing of surface without any physical contact between tool and work-piece. Presented process may carry out dry and wet in case of changing the main machining parameters such as: material and size of abrasive grains, tool and work-piece surface gap distance, tool and/or table rotational speed (r.p.m) and work-piece material. The recommended process has remarkable advantages such as: non-contact surface finishing, high finishing of non-flat surfaces, no need to clamping for work-piece because of low machining forces, responsibility for finishing of a wide range of materials except magnetizable parts, low machining costs and easy set up. This method has a lot of applications in production of optical lens, orthopedic prosthetic components and jewellery. For approve of the designed apparatus advantages, relative to other existed MR fluid machining system, some samples of very thin complex formed sheet have been successfully polished.
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