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Готові списки джерел за темами / Intermittent grinding

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Добірка наукової літератури з теми "Intermittent grinding"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Intermittent grinding"

1

Larshin, Vasily, Natalia Lishchenko, and Jan Pitel. "INTERMITTENT GRINDING TEMPERATURE MODELINGFOR GRINDING SYSTEM STATE MONITORING." Applied Aspects of Information Technology 3, no. 2 (June 10, 2020): 58–73. http://dx.doi.org/10.15276/aait.02.2020.4.

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2

KOUNOSU, Kenji. "Analysis of intermittent grinding phenomenon in cylindrical traverse grinding." Journal of the Japan Society for Precision Engineering 53, no. 2 (1987): 257–62. http://dx.doi.org/10.2493/jjspe.53.257.

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3

Kalashnikov, A. S., Y. A. Morgunov, P. A. Kalashnikov, and V. V. Filippov. "Features of intermittent profile grinding cylindrical gears." Izvestiya MGTU MAMI 7, no. 1-2 (March 10, 2013): 51–54. http://dx.doi.org/10.17816/2074-0530-68008.

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Анотація:

The conditions of engagement of grinding wheel with teeth of the cylindrical wheel when intermittent profile grinding are considered in the paper. There are investigated the possibilities of reducing the thermal stress of the grinding process by means of use of highly-porous abrasive wheels, limitation of specific speed of metal removal and sector sequence of teeth grinding.

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4

Yi, Jun, Wei Zhou, and Zhaohui Deng. "Experimental Study and Numerical Simulation of the Intermittent Feed High-Speed Grinding of TC4 Titanium Alloy." Metals 9, no. 7 (July 21, 2019): 802. http://dx.doi.org/10.3390/met9070802.

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This paper proposes intermittent feed high-speed grinding, which shows considerable advantages in terms of reducing grinding temperature, relieving grinding wheel blockage and improving workpiece surface integrity. In this grinding, the continuous feed mode of the workpiece is changed into the normal feed + fast retreat reciprocating feed mode by a fast linear feed worktable. By reasonably setting the normal feed distance of single grinding, the action time of the grinding wheel and workpiece is reduced, so that the grinding heat transfer process does not reach a stable state, reducing the grinding temperature during single grinding. Besides this, the surface temperature is cooled to nearly room temperature and the grinding wheel is flushed by the timely retreating of the grinding wheel to allow the grinding fluid to enter the grinding zone fully, which greatly reduces the phenomenon of heat accumulation and grinding wheel loading. An intermittent feed high-speed grinding experiment on Ti-6Al-4V (TC4) titanium alloy was systematically carried out, and the influence of the grinding parameters on grinding force and grinding temperature was deeply analyzed. The instantaneous grinding temperature field and thermal stress field of TC4 titanium alloy in intermittent feed high-speed grinding were constructed with the finite element method. The surface morphology of the grinding wheel and TC4 titanium alloy specimens after intermittent feed grinding were analyzed and were compared with those after traditional continuous grinding. It was found that the curves of the grinding force and temperature varied with time in the process of machining, consisting of many “pulse” peaks. Under the same grinding parameters, the magnitude of the grinding force is the same as that of continuous grinding. In a certain range, the grinding temperature is greatly affected by the single feed distance and the interval time. The numerical simulation results are in good agreement with the experimental results, and the error is controlled within 12%. Compared with traditional high-speed grinding, under the same process parameters, the grinding temperature is greatly reduced, the surface integrity of the workpiece is better, and the clogging of the grinding wheel is greatly reduced.

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5

Pearce, T. R. A., D. C. Fricker, and A. Speight. "The Effect of Workpiece Roundness of the Run-Out of CBN Electroplated Grinding Wheels." Key Engineering Materials 329 (January 2007): 483–88. http://dx.doi.org/10.4028/www.scientific.net/kem.329.483.

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Анотація:

Electroplated CBN grinding wheels are not normally trued on a grinding machine and therefore inherently have a degree of run-out. The effect of run-out on workpiece roundness has both been modelled and measured experimentally. As well as affecting roundness, run-out can result in intermittent grinding around the wheel periphery, which can then lead to preferential wear on the most eccentric part of the wheel. This intermittent effect has been investigated by modelling the variation of the normal grinding force around the wheel and by measuring the variation of acoustic emission around the wheel during grinding tests.

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6

Yang, Jian Ming, and Shi Ming Shen. "An Theoretical Study of the EDM Electrolytic Intermittent Grinding Compound Processing." Applied Mechanics and Materials 404 (September 2013): 16–19. http://dx.doi.org/10.4028/www.scientific.net/amm.404.16.

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Анотація:

Based on processing speed and processing accuracy for difficult-to-machine materials, this paper presents a new MEEC processing method, is based on the basic of MEEC increase on-process dressing grinding wheel, grinding wheel non conductive parts won't jam pore, the abrasive dust adhered to the grinding wheel continues to be removed, the grinding wheel always remain sharp, strengthened the grinding effect, greatly improving the grinding efficiency.

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7

Wada, Tadahiro. "Tool Wear in Intermittent Cutting of AISI 304 Stainless Steel by Thermally-Sprayed Coatings." Key Engineering Materials 821 (September 2019): 287–93. http://dx.doi.org/10.4028/www.scientific.net/kem.821.287.

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Анотація:

The use of thermal spray coatings is increasing to improve abrasion resistance, erosion and corrosion resistance. To improve the dimensional accuracy or surface roughness, it is often necessary for thermally-sprayed machine parts to be machined by the removal process. As thermally-sprayed coatings often show difficult-to-cut properties, a cutting, grinding, or honing process is usually employed. Replacement of the grinding process with a cutting process is an effective method for improving productivity. Cutting is performed intermittently because there is a hole in the ball part. However, there are no studies on intermittent cutting of thermally-sprayed coatings. In this study, in order to obtain an effective tool material for intermittent cutting of two types of the thermally-sprayed coating AISI 304, the tool wear was investigated experimentally. The results are as follows: (1) In the case of intermittent cutting of Ni-based self-fluxing alloy coating AISI 304, Si3N4 ceramics were considered an effective tool material. (2) In the case of intermittent cutting of thermally-sprayed (WC-Cr-Ni) cermet coating AISI 304, the uncoated cBN having the large grain size of cBN and a high content rate was effective for wear resistance.

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8

Tawakoli, Taghi, and Bahman Azarhoushang. "Intermittent Grinding of Advanced Ceramic with the T-Tool Grinding Wheel." Advanced Materials Research 126-128 (August 2010): 615–20. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.615.

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Анотація:

The application of advanced ceramics in high-tech industries is increasing considerably due to their superior properties. However the difficulties involved and manufacturing costs have been impediments to the widespread replacement of metals by the advanced ceramics. One of the main targets in grinding of these materials is increasing the machining efficiency while preserving the surface integrity. Hence in order to reduce the grinding forces and temperatures and increase the material removal rate, a specially designed segmented wheel (T-Tool) has been developed. Reducing the static cutting edges via segmenting the wheel which automatically leads to reduction of momentarily engaging cutting edges results in a reduction of rubbing and plowing regimes and therefore a decrease in the specific grinding energy. The obtained results show that the application of the T-Tool wheel can increase the G-ratio and decrease the grinding forces considerably. A decrease of up to 35% of grinding forces has been achieved.

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9

Ren, Cheng Zu, J. M. Che, Tai Yong Wang, W. D. Jin, and Xin Min Jin. "ELID Grinding Based on the State Control of Passivating Films." Key Engineering Materials 315-316 (July 2006): 225–29. http://dx.doi.org/10.4028/www.scientific.net/kem.315-316.225.

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The state of the passivating film is a key factor affecting ELID grinding. In the paper the state of the passivating film on the grinding wheel surface was characterized by the loop current, the strategies actively controlling the film state, discontinuous in-process electrolyzing and intermittent grinding were put forward, and the ELID grinding tests under the conditions of actively controlling of the film state and the traditional dynamic balance of the film state were respectively performed and contrasted with each other. It is indicated that by real-time monitoring of the film state with the loop current, the film state variation could be controlled to a narrow scope with the strategies of discontinuous in-process electrolyzing and intermittent grinding, as a result the ELID grinding kept at a fine quality and a high efficiency.

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10

Pérez, J., S. Hoyas, D. L. Skuratov, Yu L. Ratis, I. A. Selezneva, P. Fernández de Córdoba, and J. F. Urchueguía. "Heat transfer analysis of intermittent grinding processes." International Journal of Heat and Mass Transfer 51, no. 15-16 (July 2008): 4132–38. http://dx.doi.org/10.1016/j.ijheatmasstransfer.2007.11.043.

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Більше джерел

Дисертації з теми "Intermittent grinding"

1

Azarhoushang, Bahman [Verfasser]. "Intermittent Grinding of Ceramic Matrix Composites : Unterbrochenes Schleifen von keramischen Faserverbundwerkstoffen / Bahman Azarhoushang." Aachen : Shaker, 2011. http://d-nb.info/1072592398/34.

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2

Анциферова, Олеся Олександрівна. "Технологічне забезпечення точності та якості поверхонь зубчастих коліс при удосконаленні методу зубошліфування". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38013.

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Анотація:

Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.02.08 – технологія машинобудування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертацію присвячено вирішенню проблеми підвищення продуктивності процесу зубошліфування на основі досягнення високої необхідної точності і якості поверхневого шару з оцінкою комплексного впливу конструктивно-технологічних факторів на процес формування поверхневого шару зубів зубчастих коліс з метою підвищення їх зносостійкості, а також продуктивності технологічного процесу в оптимальних виробничих умовах. Отримала подальший розвиток теоретико-експериментальна залежність формоутворення якості поверхневого шару та способу переривчастого зубошліфування, яка відрізняється врахуванням геометричних параметрів переривчастого кругу, що дозволило прогнозувати експлуатаційні властивості зубчастих коліс. Удосконалені технологічні засоби стабілізації оптимальних режимів переривчастого зубошліфування, які дозволяють підвищити якість обробки зубчастих коліс. Встановлена закономірність зменшення засалювання переривчастого зубошліфувального кругу та температури у зоні контакту, яке впливає на забезпечення експлуатаційних властивостей поверхонь зубів.
Thesis for scientific degree of Candidate of Technical Sciences on speciality 05.02.08 − Manufacturing Engineering. − National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The dissertation is devoted to solving the problem of increasing the productivity of the process of grinding on the basis of achieving the high required accuracy and quality of the surface layer with an assessment of the complex influence of structural and technological factors on the formation of the surface layer of teeth of gear wheels in order to increase their wear resistance, as well as the productivity of the technological process in optimal production conditions. The theoretical and experimental dependence of the formation of the quality of the surface layer and the method of intermittent gear grinding has been further developed, which differs from the geometric parameters of the discontinuous circle, which allowed predicting the operational properties of the gears. Improved technological means of stabilizing optimal modes of intermittent gear grinding, which allow to improve the quality of machining of gear wheels. The regularity of reduction of salting of intermittent gear grinding wheels and temperature in the contact zone is established, which affects the maintenance of the operational properties of tooth surfaces.

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3

Анциферова, Олеся Олександрівна. "Технологічне забезпечення точності та якості поверхонь зубчастих коліс при удосконаленні методу зубошліфування". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/37888.

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Анотація:

Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.02.08 – технологія машинобудування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертацію присвячено вирішенню проблеми підвищення продуктивності процесу зубошліфування на основі досягнення високої необхідної точності і якості поверхневого шару з оцінкою комплексного впливу конструктивно-технологічних факторів на процес формування поверхневого шару зубів зубчастих коліс з метою підвищення їх зносостійкості, а також продуктивності технологічного процесу в оптимальних виробничих умовах. Отримала подальший розвиток теоретико-експериментальна залежність формоутворення якості поверхневого шару та способу переривчастого зубошліфування, яка відрізняється врахуванням геометричних параметрів переривчастого кругу, що дозволило прогнозувати експлуатаційні властивості зубчастих коліс. Удосконалені технологічні засоби стабілізації оптимальних режимів переривчастого зубошліфування, які дозволяють підвищити якість обробки зубчастих коліс. Встановлена закономірність зменшення засалювання переривчастого зубошліфувального кругу та температури у зоні контакту, яке впливає на забезпечення експлуатаційних властивостей поверхонь зубів.
Thesis for scientific degree of Candidate of Technical Sciences on speciality 05.02.08 − Manufacturing Engineering. − National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The dissertation is devoted to solving the problem of increasing the productivity of the process of grinding on the basis of achieving the high required accuracy and quality of the surface layer with an assessment of the complex influence of structural and technological factors on the formation of the surface layer of teeth of gear wheels in order to increase their wear resistance, as well as the productivity of the technological process in optimal production conditions. The theoretical and experimental dependence of the formation of the quality of the surface layer and the method of intermittent gear grinding has been further developed, which differs from the geometric parameters of the discontinuous circle, which allowed predicting the operational properties of the gears. Improved technological means of stabilizing optimal modes of intermittent gear grinding, which allow to improve the quality of machining of gear wheels. The regularity of reduction of salting of intermittent gear grinding wheels and temperature in the contact zone is established, which affects the maintenance of the operational properties of tooth surfaces.

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Книги з теми "Intermittent grinding"

1

Llano, Samuel. A Public Nuisance. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199392469.003.0007.

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This chapter documents the early presence of organilleros in the streets of Spanish cities from the 1860s on and analyzes their impact on Madrid’s society during the ensuing decades. Considered an exotic amusement during the 1860s, organilleros came to be seen as sources of “noise” and social disorder soon after. Although the information available on organilleros makes it hard to describe their social background accurately, it is likely that some of them were rural immigrants who took up organ grinding intermittently when other sources of income failed. Their impact on the public sphere raised awareness about the effects of sound and prompted legal measures that could be considered as the first attempts to spread an “aural” hygiene in Madrid. For this reason, organilleros played a key role in the modernization of this city.

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Частини книг з теми "Intermittent grinding"

1

Lishchenko, Natalia, Vasily Larshin, and Sergey Uminsky. "Modeling of the Intermittent Grinding Temperature." In Lecture Notes in Mechanical Engineering, 188–98. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-91327-4_19.

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2

Zeng, Wei Min, Zhi Chao Li, Xi Peng Xu, Zhi Jian Pei, Ju Dong Liu, and Jun Pi. "Experimental Investigation of Intermittent Rotary Ultrasonic Machining." In Advances in Grinding and Abrasive Technology XIV, 425–30. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-459-6.425.

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Тези доповідей конференцій з теми "Intermittent grinding"

1

Liu, Feng, Perveen Asma, Sheng Huang, and Yu Wang. "The Effect of Intermittent Grinding on Burrs and Force Generated by Functional Textured Wheel." In Proceedings of the 4M/ICOMM2015 Conference. Singapore: Research Publishing Services, 2015. http://dx.doi.org/10.3850/978-981-09-4609-8_047.

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2

Chandra, A., K. Wang, Y. Huang, and G. Subhash. "Role of Unloading in Machining of Brittle Materials." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1139.

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Анотація:

Abstract A simple stress based defect evolution model is developed to assess the influence of various process paramters on material removal rate (MRR) and induced damage during ceramic grinding processes. Model predictions for normal and lateral damage zones under normal indentations are first compared to fracture models as well as experimental observations on pyrex glass. The proposed model is then extended to simulate oblique indentation events depicting abrasive gritworkpiece interactions during ceramic grinding. It is also easily extendable to real grinding situations involving multiple interacting abrasive grits. Process design options for reducing induced damage in the finished part, and increasing MRR are considered next. In particular, the potential of a new design avenue involving intermittent unloading is investigated. For pyrex glass, it is observed that intermittent unloading can facilitate significant increase in force per abrasive grit without increasing the associated surface and sub-surface fragmentation in the finished part. This design feature may enable significant increase in MRR, while maintaining a very low level of process induced damage in the finished product.

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3

Balawajder, Peter, Jeffrey Steward, Alfonso Ortega, Joe D’Silva, Anne Moore, and Luis Silva. "Investigation of a Novel Process for Wet Milling a Pharmaceutical Tablet in a Dynamically Rotating Water-Filled Dosage Cup." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-10669.

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The most common commercial pharmaceutical dosage forms are tablets and capsules, but unfortunately these forms may not be suitable for sub-groups, such as very ill children and elderly patients and those experiencing trauma and involved in surgery. Many of these patients have difficulty in swallowing a solid dosage form. For these groups, the general practice is to use equipment such as the age-old mortar and pestle to pulverize the tablet, transfer the powder to a container and then make a liquid suspension by addition of water. This process consists of two unit processes: dry grinding followed by creation of a water suspension. This paper reports on the evaluation of a novel wet milling method for performing these unit operations in a single water-filled dosage cup. The basic concept is that the partially water-filled cup is rotated or spun about its axis to produce relative motion between the tablet and the cup surfaces. The cup surfaces are textured so that material is abraded from the tablet when it strikes the cup walls. The complex water motion assists in “softening” the tablet, abrading particulates from its surface, and producing a fine aqueous suspension. Experimental investigations were performed on two concepts. The first method utilized intermittent single axis cup rotation to produce relative motion between the tablet and cup surfaces. The second concept involved rotating the spinning cup on a rotating arm and also about its own axis. The centrifugal force of the arm rotation pressed the tablet against the spinning cup wall, thereby increasing the shearing force. The efficiency of both methods was investigated analytically and experimentally. The effects of rotation rates, intermittent duty cycles, and water fill volumes were examined and compared.

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