Готові списки джерел за темами / Magnetic abrasive tool

Добірка наукової літератури з теми "Magnetic abrasive tool"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Magnetic abrasive tool"

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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Анотація:

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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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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Анотація:

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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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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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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Анотація:

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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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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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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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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Анотація:

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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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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Анотація:

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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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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Анотація:

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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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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Анотація:

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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Більше джерел

Дисертації з теми "Magnetic abrasive tool"

Іщик, Дмитро Володимирович. "Підвищення якості свердел із швидкорізальної сталі при магнітно-абразивному обробленні". Master's thesis, Київ, 2018. https://ela.kpi.ua/handle/123456789/26703.

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Дисертація на здобуття наукового ступеня магістра за спеціальністю 133 – Галузеве машинобудування. – Національний технічний університет України "Київський політехнічний інститут імені Ігоря Сікорського". – Київ, 2018. Проаналізувавши сучасні методи покращення якості та продуктивності різальної кромки металорізального інструменту, на прикладі свердел, було обрано метод магнітно-абразивного оброблення. Даний метод дозволив досягти значного покращення якості різальної кромки (шорсткості), збільшення значення твердості поверхневого шару і відповідно – періоду стійкості свердла. В дисертації проаналізовано шляхи вирішення проблеми стійкості інструменту при роботі, досліджено процес МАО шляхом проведення експлуатаційних випробувань свердел, оброблених цим методом. Магнітно-абразивні порошки було підібрано зважаючи на поперед ні роботи в цій галузі, а саме – використали порошки великих фракцій. Результати досліджень підтвердили доцільність їх використання наряду з порошками малих фракцій. Експериментальні дані використані та впроваджені на підприємстві ДП «Київський бронетанковий завод».
Dissertation for a Master's degree in specialty 133 – Branch mechanical - engineering. - National Technical University of Ukraine "Kyiv Polytechnic Institute named after Igor Sikorsky". - Kyiv, 2018. Having analyzed the modern methods of improving the quality and productivity of the cutting edge of the metal cutting tool, on the example of the drill, the method of magnetic abrasive treatment was chosen. This method has allowed to achieve a significant improvement in the quality of the cutting edge (roughness), an increase in the hardness of the surface layer and, respectively, the period of drill firmness. In the dissertation the ways of solving the problem of instrument stability during work are analyzed, the process of MAO is investigated by carrying out operational tests of the drills processed by this method. Magnetically-abrasive powders were selected in the light of previous work in this field, namely, the use of powders of large fractions. The results of the studies confirmed the feasibility of their use, along with small fractions powders. Experimental data were used and implemented at the enterprise "Kyiv Armored Plant".

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Частини книг з теми "Magnetic abrasive tool"

Saito, T., K. Koike, H. Yamato, A. Kuwana, A. Suzuki, H. Yamaguchi, and Takeo Shinmura. "Development of Gas-Atomized Magnetic Tools." In Advances in Abrasive Technology VIII, 287–90. Stafa: Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-974-1.287.

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Li, Li, Dong Wang, Zong Wei Niu, Zhi Yong Li, and Guang Ming Yuan. "Ultrasonic Machining Aided Tool Rotation of Sintered NdFeB Magnet." In Advances in Grinding and Abrasive Technology XIV, 420–24. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-459-6.420.

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Тези доповідей конференцій з теми "Magnetic abrasive tool"

Lee, Ping-Hsun, and Jen-Yuan (James) Chang. "Design of a Magnetorheological Finishing Tool Manipulated by a Mechanical Magnetic Switch for Magnetic Field Assisted Finishing." In ASME 2019 28th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/isps2019-7492.

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Анотація:

Abstract In this study we proposed a finishing tool where a slurry composited of magnetorheological (MR) fluid and abrasive particle was utilized as the polishing medium such that the rheological property and corresponding abrasive property could be controlled by changing the magnetic field. The MR abrasive fluid is magnetized by a permanent magnet. With a design of a steel C-shape structure (C-Structure) the magnetic field generated by the magnet can be directed to the tool tip. With a movable slider as a gate of the C-Structure the magnetic field directed to the tip can be adjusted continuously. The slurry was supplied from the tail and reached the tip through a fluid channel in the center of the tool. While the tool rotates with its tip near a workpiece filled with the magnetized slurry, the finishing machining process can be achieved. The usage of this finishing tool was designed to be similar as a conventional milling cutter’s tool allowing for handling surfaces of complex 3D geometries.

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Ratay, Jason, and Hitomi Yamaguchi. "Characteristics of Diamond Abrasive Used in Magnetic Abrasive Finishing of Nickel-Based Superalloys." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8365.

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Abstract Nickel-based superalloys have a wide range of high-temperature applications, such as turbine blades. The complex geometries of these applications and the specific properties of the materials raise difficulties in the surface finishing. Magnetic abrasive finishing (MAF) has proven effective in finishing the complex geometries. In MAF, the magnetic properties of the workpiece, tool, and abrasive play important roles in controlling finishing characteristics. This paper presents the effects of nickel coating on the abrasive behavior during finishing and resulting finishing characteristics of Ni-based superalloys. The Ni-coated diamond abrasive is more attracted to the magnet than the Ni-based superalloy surface. As a result, fewer Ni-coated diamond abrasive particles, which are stuck between the magnetic-particle brush and the target surface, participate in surface finishing. Because of this, coupled with the reduced sharpness of abrasive cutting edges due to the coating, Ni-coated diamond abrasive cannot effectively smooth the target surface in MAF. However, the Ni coating is worn off during finishing of the hard, rough, additively manufactured surface. Then, the diamond abrasive participates in finishing as uncoated diamond abrasive and facilitates the material removal, finishing the target surface.

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Stein, Max, Hitomi Yamaguchi, Yoshitaka Morimoto, Fumiya Yoshimura, Akira Hasegawa, and Kiego Takasugi. "Magnetic abrasive finishing of non-axisymmetric curved surfaces using rotating magnetic tool." In 2016 International Symposium on Flexible Automation (ISFA). IEEE, 2016. http://dx.doi.org/10.1109/isfa.2016.7790147.

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Khatri, Atul, and Vinod Yadava. "Finite Element Simulation of Plane Magnetic Abrasive Finishing." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14239.

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Анотація:

The final machining (or finishing) of precision parts with high accuracy level is making the application of abrasive finishing technologies increasingly important. Magnetic abrasive finishing (MAF) is a new advanced finishing process used for fine finishing of extremely hard materials. It is employed for finishing of metals and non-metals. This paper focuses on the modeling and simulation for the prediction of surface roughness in plane magnetic abrasive finishing. A finite element based model is developed to find the magnetic potential distribution in gap between tool and workpiece. Further, magnetic potential is used to evaluate machining pressure, material removal and finally surface roughness of the workpiece surface. The simulation results are confirmed compared with the experimental results available in the literature. The simulated workpiece surface roughness shows features which are similar in nature to the experimental results.

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Ma, Lei, Toshiki Hirogaki, Eiichi Aoyama, Wei Wu, and Tatsuya Furuki. "Control of Pressing Force in Magnetic Abrasive Finishing Using Permanent Magnet End-Mill Tool." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-2781.

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Анотація:

The magnetic abrasive finishing (MAF) process is well known because of its high efficiency in yielding a mirror gloss finish zone. Clarification of the high efficiency machining mechanism has indicated that this high efficiency is obtained by iron particle cutting and the simultaneous polishing of alumina abrasives. This process yields unevenness, which is often evident on the workpiece surface. In a previous report, we compared magnetic polishing brushes consisting of iron powder paste (commercial paste) or steel balls (uniform size), and found that a large variation was generated when the magnetic polishing brush approached the workpiece surface in both cases. In this paper, we make slight changes to the steel-ball shape, obtaining saddle and barrel-shaped iron particles via stamping processing. The aim is to observe the control factor of the pressing force for these three different iron particle shapes and for different particle numbers, using a force sensor and a high-speed camera. The relationship between the iron particle shape, the iron particle number and the pressing force control is also explored in an attempt to discuss the mechanism behind the iron particle shape effect on the frictional force generation between the iron particles. It is found that the force variation can be reduced by adjusting the particle shape and number, which effectively reduces the damage caused when the brush approaches the workpiece surface.

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Barman, Anwesa, and Manas Das. "Analysis of Forces During Spot Finishing of Titanium Alloy Using Novel Tool in Magnetic Field Assisted Finishing Process." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6352.

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Magnetic field assisted finishing process is a nanofinishing process which uses magnetic field for precise control of finishing forces. Magnetorheological fluid mixed with diamond abrasive particles in base medium of glycerol, hydrofluoric acid, nitric acid, and deionized water is used as the polishing medium. The novel tool is a magnet fixture made of mu-metal which is used to hold the magnet during finishing. In the present experimental study, finishing at a spot on flat titanium alloy is carried out to analyze the forces involved in the finishing. Normal force is the main force responsible for the indentation by the abrasive particle on the workpiece surface. Tangential force helps in removing indented material. The measured normal force and tangential force during the spot finishing are 3.285 N and 0.43 N, respectively. The final surface roughness achieved after spot finishing is 10 nm from initial surface roughness of 200 nm. The percentage improvement in surface roughness is 95%.

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Takebayashi, Yusuke, Toshiki Hirogaki, Eiichi Aoyama, Keiji Ogawa, and Shreyes N. Melkote. "Development of Magnetic Polishing for Micro Channel With a Ball-Nose-Shaped Tool." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-64163.

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In recent years, a high quality and accurately manufactured surface is needed for micro channels for micro-TAS (micro-total analysis systems, a kind of MEMS technology) chips in medical fields. We demonstrated that the use of smaller machine tools is an effective method to reduce the environmental impact in the small parts manufacturing field. Then, in this report, we focus on magnetic polishing for micro channels with a ball-nose-shaped tool, integrating the end milling and polishing processes in a desktop-sized machine tool. The magnetic brush was formed by adhering a magnetic polishing paste, which was composed of abrasive grains (alumina, particle size 0.05 um), metallic particles (cast-iron, diameter 1–100 um), and solvating media (vegetal oil), to the tip (radius 2 mm) of the ball-nose-shaped tool, which was a permanent magnet and a prototype micro tool with a ball-nose end mill shape. We attempt to end mill and polish the surface of micro channels with a prototype magnetic tool and a desktop-sized machine tool. The quality of the machined surface is estimated with a high accuracy surface profile meter. As a result, it can be seen that the proposed method is effective to machine and finish the micro channel surface for micro-TAS chips.

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Lee, Pil-Ho, Haseung Chung, Patrick Steven McCormick, Patrick Kwon, Hoa Nguyen, Yuhang Yang, and Chenhui Shao. "Experimental and Statistical Study on Magnetic-Field Assisted Finishing of Mold Steel Using Nano-Scale Solid Lubricant and Abrasive Particles." In ASME 2018 13th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/msec2018-6544.

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Анотація:

Magnetic field-assisted finishing (MAF) is a surface quality enhancing process that utilizes a flexible brush composed of ferrous metal and abrasive particles. This paper experimentally and statistically investigates the characteristics of a MAF process with nano-scale solid lubricant. A new MAF tool was developed by integrating iron and abrasive particles, and nano-scale solid lubricant. In this experiment, the optical microscopic images of the surface are obtained to measure the surface roughness resulting from MAF processes with varying the content of abrasive particles and the presence of nano-scale solid lubricant. Furthermore, spatial statistics techniques are used to quantitatively evaluate the quality of the surface resulting from each combination of MAF parameters. It is demonstrated that the size and type of abrasive particles mainly affect MAF process and the newly developed MAF tool with nano-scale solid lubricant can improve the final surface quality.

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Song, Guangchao, Bibek Poudel, Patrick Kwon, Haseung Chung, Zachary Detweiler, and Guangchun Quan. "Development of Magnetic-Field Assisted Finishing (MAF) Process for Chromium-Alloyed Low Carbon Steel Sheet Metal." In ASME 2021 16th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/msec2021-63614.

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Анотація:

Abstract Magnetic-Field Assisted Finishing (MAF) is a polishing process that utilizes a slurry mixture made of ferrous and abrasive particles in a liquid medium, known as a brush. The brush attached to a magnetic tool directly interacts with the surface of a workpiece and removes any imperfections and defects in the surface giving a smooth and nice surface finish. In this study, two distinct MAF setups were applied to the surface of chromium alloyed low carbon steel sheets to achieve the surface finish. The preliminary studies were conducted on one setup to understand the polishing behavior of the sheets and the other setup was designed to polish larger areas of the sheets to mimic the practical sheet producing environment. The effect of processing conditions such as types and sizes of abrasives, brush composition, and finishing time to attain the final surface roughness of the sheets was studied. The brush with the weight composition of 4:1:1.5 (iron: 3 μm black ceramic: silicone) was found to be the optimal condition for polishing the sheet metal samples. The optimal conditions obtained were applied to the larger scaled experimental setup. The final surface roughness of 38 nm and 220 nm were achieved in these experimental setups, respectively.

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Sran, Lakhvir Singh, Sehijpal Singh Khangura, and Amarjit Singh. "Nano Finishing of Brass Tubes by Using Mechanically Alloyed Magnetic Abrasives." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7264.

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Анотація:

With advancement of technology, finely finished surface is one of the major requirements of modern industry. Fine machining with conventional edged tools is uneconomical and sometimes impossible. Magnetic Abrasive Finishing (MAF) is one promising process which is able to remove the material at micro/nano from metallic and non metallic surfaces. The magnetic abrasives play vital role in MAF. Literature reveals different techniques such as sintering, plasma, chemical, etc. for manufacturing of bonded magnetic abrasives. In the present paper, the bonded magnetic abrasives prepared by a new technique called mechanical alloying have been successfully used for the internal finishing of the brass tubes. After rough boring operation, the inner surface of the tubes is finely finished by newly developed magnetic abrasives. Best surface finish obtained by using these magnetic abrasives is of the order of 9 nm.

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