Готові списки джерел за темами / Finishing antifriction non-abrasive treatment

Добірка наукової літератури з теми "Finishing antifriction non-abrasive treatment"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Finishing antifriction non-abrasive treatment"

Shepelenk, IV, VV Cherkun, and A. Warouma. "Improvement of finishing antifriction treatment without abrasive of the rubbing parts surfaces of agricultural machineries." International Journal of Agricultural Research, Innovation and Technology 4, no. 1 (December 3, 2014): 98–101. http://dx.doi.org/10.3329/ijarit.v4i1.21101.

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The wear of machines and mechanisms after rubbing is a major concern. The costs of manufacturing and restoration parts for agricultural machinery are enormous such as the trunnions pinions of hydraulic pumps. Finishing treatment antifriction without abrasive (FTAA) is the existing method of manufacturing and restoration, but it has disadvantages like low work efficiency and the frequent replacement of the instrument. That is why a new method of FTAA parts type ''tree'' has been developed called vibratory finishing treatment antifriction without abrasive, (VFTAA) method. The study was conducted at the laboratory of the State Technical University of Kirovograd (Ukraine) where turn 16K20, the profilograph-profilometer "Talysurf-5", the scanning electron microscope REM-106I, friction machine MI-1M and the stand KI-28097-02M were used respectively for machining, study of micro relief before and after the VFTAA, microstructure, wear resistance and the determination of the break-in period of parts. The results showed that the VFTAA helped reduce the roughness Ra of the samples studied by half compared to the samples processed by polishing and 1.3 times compared to those treated with the FTAA, the break-in period has been reduced four times , this leads to an increase in the life of the hydraulic pump. This technology can be recommended for manufacturing and repair of hydraulic units of agricultural machineries. DOI: http://dx.doi.org/10.3329/ijarit.v4i1.21101 Int. J. Agril. Res. Innov. & Tech. 4 (1): 98-101, June, 2014

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Ipatov, Aleksey, and Sergey Shmykov. "SYNTHESIS OF ANTIFRICTION COATINGS BY THE FABO METHOD." Tekhnicheskiy servis mashin 1, no. 142 (January 2021): 140–47. http://dx.doi.org/10.22314/2618-8287-2020-59-1-140-147.

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In the paper, the technology of obtaining antifriction coatings by the method of finishing antifriction-free abrasive treatment with the implementation of the wear-free effect is proposed. (Research purpose) The research purpose is in developing an effective technology for obtaining copper coatings on the surface of steel parts of the shaft type to reduce the wear rate in the conditions of oil starvation of machine parts. (Materials and methods) During the study, a laboratory facility for the synthesis of antifriction coatings on the surface of steel parts by the method of finishing antifriction-free abrasive treatment has been developed. Brass of the LS-59-1 brand was used as a material for applying a copper antifriction coating. In order to activate the surface of the part and the surface of the filler material, a technological medium based on a ten percent solution of hydrochloric acid and glycerol was used. Authors determined the composition of the technological environment empirically. The obtained laboratory samples were subjected to tribological studies in comparison with standard antifriction alloys. X-ray diffraction studies were performed to determine the phase composition. (Results and discussion) As a result of X-ray diffraction studies of laboratory samples, the presence of iron and copper components in the synthesized coating was studied. The content of oxides on the surface of the coating is insignificant, the internal structure is dense with no visible porosity. The coating consists of 95 percent copper, the synthesis process takes place without oxidation, which gives the coating a high adhesive and cohesive strength. The coating thickness is uniform and varies within 3-5 micrometers. (Conclusions) Comparative tribological studies have shown high resistance to wear and to the setting of the contact surfaces under conditions of oil starvation. The coefficient of friction is stable and low and is in the range of 0.08-0.15. The developed technology makes it possible to increase the wear resistance of steel parts of the shaft type in the shortest possible time and with minimal material costs and can be successfully implemented in the conditions of repair enterprises.

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Ipatov, Aleksey G., and Sergey N. Shmykov. "SYNTHESIS OF ANTIFRICTION COATINGS BY THE FABO METHOD." Tekhnicheskiy servis mashin 1, no. 142 (March 2021): 140–47. http://dx.doi.org/10.22314/2618-8287-2021-59-1-140-147.

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Tarasenko, Boris, Evgeny Shapiro, Sergey Voinash, Alexey Kamenchukov, and Аbdul Мudalif Dzhasheev. "Improvement of the Method for Restoring the Bearing Supports of Steel Crankshaft." Materials Science Forum 1031 (May 2021): 50–57. http://dx.doi.org/10.4028/www.scientific.net/msf.1031.50.

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In the science of car repair, the problem of restoring worn-out crankshafts is very relevant. The engineering solutions proposed in the article will provide an increase in the technical and economic indicators of repair: an increase in the quality of coating by a gas-flame method with a finishing non-abrasive antifriction treatment. At the same time, the engineering solution consisting in the formation of one groove on each journal of the crankshaft, brazing of a copper wire, followed by flame spraying of a coating, sealed by a disk, and grinding of the journals (the bearing supports), provides a non-wear effect. So, thanks to the coil of copper wire, the resource of the crankshaft increases and the cost of repaired crankshafts are reduced in comparison with new ones.

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Shepelenko, I. "Technological factors influence on the antifriction coatings quality." Problems of tribology 100, no. 2 (June 23, 2021): 50–57. http://dx.doi.org/10.31891/2079-1372-2021-100-2-50-57.

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The conditions for the antifriction coatings formation during finishing antifriction non-abrasive treatment (FANT) are analyzed. The requirements for this kind of coatings and the main criteria for assessing their quality are noted. A relationship has been established between the quality of the coating obtained with FANT and the technological factors that determine the conditions for contacting the tool with the treated surface. It is proved that the shape and size of microroughnesses of the treated surface determine the efficiency of the microcutting process and filling the microcavities with the rubbed material. Technological factors influence on the coating quality was investigated during FANT by implementing a multifactor experiment, as a result of which a connection was established between the technological parameters of the process (total friction path, load on the tool), as well as the length of the supporting surface with indicators characterizing the coating quality. Statistical models were obtained for mass transfer of antifriction material, area (continuity) of the coating and surface roughness at natural values of the factors, which made it possible to establish the studied factors influence on the optimization parameters. The analysis of the experimental scattering graphs made it possible to clarify the nature of the factors changes and analyze their mutual influence on the optimization criteria. Taking into account the inversely proportional relationship of the optimization criteria, the achievement of their maximum values at the same time is impossible, therefore, the values are taken according to the final result of the FANT process. The range of the studied factors values is established, the regularities of their change are substantiated from the point of view of the selected optimization criteria. Determination the rational values of the FANT process technological parameters will improve the antifriction coatings quality obtained by a friction-mechanical method.

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Nemyrovskyi, Yakiv, Ihor Shepelenko, Ruslan Osin, and Eduard Posviatenko. "IMPROVING THE PROCESSING QUALITY OF CYLINDER LINERS USING COMBINED TECHNOLOGY." Cutting & Tools in Technological System, no. 96 (March 2, 2022): 121–30. http://dx.doi.org/10.20998/2078-7405.2022.96.13.

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Due to the use of surface engineering methods, a combined technology for processing the working surface of internal combustion engines cylinder liners has been developed. The advantages and disadvantages of traditional liners processing technologies are analyzed, which allowed identifying ways to improve them. A new technological process of cylinder liners processing is proposed, which includes operations of deforming broaching and finishing antifriction non-abrasive treatment. The technological equipment and tools for the chosen technological process realization are chosen. Experimental studies of the proposed technical solutions feasibility are carried out. The microrelief of the treated surface, roughness parameters, hardness distribution according to the wall thickness were determined for the studied liners, and the amount of wear was determined for the liners after running-in. Parameters analysis of geometric, mechanical and tribological characteristics of the liners working surface, processed by the existing and proposed technology showed significant advantages of the latter. There is an increase in the productivity of processing part up to 4 times, reducing the cost of the tool up to 3 times, and in general – reducing the cost of restoring the liner. It is proved that the use of the proposed technology allows improving the physical-mechanical characteristics of the working surface: strengthening the surface layer to a depth of 0.3 mm, as well as obtaining a roughness close to the operational.

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Serezhkin, M. A., and E. L. Melnikov. "Development of technology of hardening of large punch matrices." Izvestiya MGTU MAMI 8, no. 1-2 (March 10, 2014): 214–21. http://dx.doi.org/10.17816/2074-0530-67885.

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There was developed a technology to enhance the resilience of large dies and punches. Maximum contact load on the exhaust side of the punch die was measured. The experimental research of non-abrasive finishing antifriction coatings wear resistance was carried out taking into account the influence of lubricants.

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Nguyen, Nam Duc. "Study on the application of non -Newton fluid in curved surface polishing." Science and Technology Development Journal 20, K5 (August 31, 2017): 58–63. http://dx.doi.org/10.32508/stdj.v20ik5.1160.

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Traditionally, the curved surfaces are generated by a complicated machining process to achieve the required surface quality. To simplify this process, the abrasive will be mixed with the binder to become a polishing slurry. This slurry does not obey the Newton laws when it moves. This process will produce the shear stress for the slurry on the machining surface. Based on the non-Newton fluid, the curved surface will be machined by a simple machining process. In this paper, the effects of grinding speed, slurry concentration and abrasive size on the surface roughness are discussed. The experimental results show that the polishing speed has an obvious influence on surface finishing. With the increase of the polishing speed, the surface roughness reduces. In addition, the slurry concentration also affects the surface quality like the polishing speed. The abrasive size has a small effect on the surface finishing. The surface roughness of steel spherical workpiece Ø40 mm is reduced sharply from Ra = 130 nm to Ra = 23 nm after treatment.

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Shepelenko, Ihor, Yuriy Tsekhanov, Yakiv Nemyrovskyi, Eduard Posvyatenko, and Pavlo Eremin. "Simulation of micro-cutting in the process of finishing anti-friction non-abrasive treatment." Ukrainian journal of mechanical engineering and materials science 5, no. 2 (2019): 43–52. http://dx.doi.org/10.23939/ujmems2019.02.043.

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Shepelenko, I. "The study of surface roughness in the process of finishing anti-friction non-abrasive treatment." Problems of Tribology 25, no. 1 (March 26, 2020): 34–40. http://dx.doi.org/10.31891/2079-1372-2020-95-1-34-40.

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Більше джерел

Дисертації з теми "Finishing antifriction non-abrasive treatment"

Шепеленко, Ігор Віталійович. "Наукові основи технології нанесення антифрикційних покриттів з використанням пластичного деформування". Doctoral thesis, Київ, 2021. https://ela.kpi.ua/handle/123456789/45249.

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Дисертація присвячена вирішенню науково-технічної проблеми, що полягає в створенні наукових основ технології нанесення антифрикційних покриттів з використанням холодного пластичного деформування задля підвищення якості поверхонь тертя деталей з малопластичних матеріалів. Розроблено експериментальна модель контактної взаємодії одиничної мікронерівності з інструментом при ФАБО, що дозволило встановити основні закономірності процесу та забезпечити ефективне протікання мікрорізання і заповнення мікрозападин антифрикційним матеріалом. Для підвищення якості нанесення антифрикційних покриттів запропоновано використання деформуючого протягування задля покращення адгезійної взаємодії з основним матеріалом, отримання робочої поверхні деталі з поліпшеними фізикомеханічними властивостями і шорсткістю, близькою до рівноважної. На підставі проведених досліджень розроблено нові технологічні процеси нанесення антифрикційних покриттів з використанням ФАБО та деформуючого протягування.

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Частини книг з теми "Finishing antifriction non-abrasive treatment"

Shepelenko, Ihor, Yuri Tsekhanov, Yakov Nemyrovskyi, and Eduard Posviatenko. "Improving the Efficiency of Antifriction Coatings by Means of Finishing the Antifriction Non-abrasive Treatment." In Lecture Notes in Mechanical Engineering, 289–98. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40724-7_30.

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Shepelenko, Ihor, Yakiv Nemyrovskyi, Yuri Tsekhanov, Eduard Posviatenko, and Sergii Sardak. "Power Parameters of Micro-cutting During Finishing Anti-friction Non-abrasive Treatment." In New Technologies, Development and Application III, 194–201. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46817-0_22.

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Shepelenko, I., Y. Nemyrovskyi, Y. Tsekhanov, E. Posviatenko, Z. Omiotek, M. Kozhamberdiyeva, and A. Shortanbayeva. "Modeling of contact interaction of microroughnesses of treated surfaces during finishing anti-friction non-abrasive treatment FANT." In Mechatronic Systems 2, 237–46. London: Routledge, 2021. http://dx.doi.org/10.1201/9781003225447-21.

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