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Dissertations / Theses on the topic 'Abrasive grinding'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Rolon, Daniel Alexandre. "Grinding strategy development using spherical abrasive mounted points." reponame:Repositório Institucional da UFSC, 2016. https://repositorio.ufsc.br/xmlui/handle/123456789/174703.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2016.<br>Made available in DSpace on 2017-04-11T04:16:29Z (GMT). No. of bitstreams: 1 344788.pdf: 103481399 bytes, checksum: a98f6382558b46c5f5ac471d3d5372a7 (MD5) Previous issue date: 2016<br>Abstract : The aviation and medical implants industries have reached significant relevance and growth during the past decades. As grinding processes with abrasive mounted points are widely employed to achieve the strict tolerances of such industries, it i

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2

Guo, Lei. "Ultraviolet Bonding of Diamond Abrasive Tools for Lap-Grinding Process." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1354572460.

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3

Nelson, Luis Manuel. "Subsurface damage in the abrasive machining of titanium aluminide (gamma)." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/17581.

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4

MULLOTH, SUDHAKARAN SUDHILAL, and VIBI JOHN. "Simulation of Removal Functions for Abrasive Grinding Tool : Numerical Simulation Of Tool Influence Function." Thesis, Högskolan i Halmstad, Maskinteknisk produktframtagning (MTEK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-30760.

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A relatively large set of complex data can be described using a simple mathematical Prestonequation. However the parameter choices are an essential facet that determines the efficiencyof grinding. The depth and volume of removal contributes to a significant part of the grindingoperation that accounts for the manufacturing time. These interacting factors in the equationare studied to create, infer and compare the performance of three sets of grinding tools: padtool, brush tool and radial tool. The tools are generated using MATLAB and is provided as aninput for tool path generation. The geometry

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5

Vendrame, Saimon. "Integridade superficial do aço-rápido AISI M3:2 após o processo de retificação /." Bauru, 2019. http://hdl.handle.net/11449/191113.

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Orientador: Eduardo Carlos Bianchi<br>Resumo: Aços-rápidos são materiais que exibem elevada resistência ao desgaste abrasivo, aliada a uma tenacidade relativamente alta, propriedades estas que os tornam adequados para se fabricar ferramentas de corte. Grande parte de suas propriedades se deve a presença de carbonetos na microestrutura. Ao mesmo tempo que estas propriedades mecânicas são favoráveis para a utilização como ferramentas, tornam-se desafios na sua fabricação. O processo de retificação é empregado nas últimas etapas de fabricação de ferramentas de corte como machos e brocas e a prese

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6

Svensson, Dennis, and Svärd Tobias Falk. "Mechanical dry grinding process of saw chain." Thesis, Högskolan i Halmstad, Akademin för ekonomi, teknik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-39927.

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The cutting links on chainsaws needs to be sharpened regularly to retain its sharpness. The most effective way is to use a machine wheel grinder. However, due to high friction there is a high risk of tempering the steel and damaging the sustainability to wear, resulting in a dull cutting edge. In order to develop a grinding method that produces a good result every time, a series of parameters were tested in order to determine which combination of these generated the best grinding results. With all parameters established the results shows that the attributes of each grinding wheel are the main

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7

Guo, Lei. "Study of the Influence of Nanosized Filler on the UV-Curable Resin Bonded Diamond Abrasive Tools." University of Toledo / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1461690140.

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8

Мороз, С. А., та В. В. Пташенчук. "Вимірювання температури в зоні різання при обробленні переривчатим абразивним інструментом". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/61425.

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9

Řehák, Pavel. "Kvantifikace přesnosti brousicího procesu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229736.

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In this work, there is described an abrasive process including technological terms with an identification of motions and a speed of grinding. Then there are described abrasive tools, machines, their distribution and description. Further technological factors on accuracy of abrasive process and some reached parameters of the accuracy and their statistic interpretation.

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10

Zhou, Yuchen. "On modelling and experimentation of planar grinding using abrasive pads with grits of defined geometries and distributions for enabling controlled surface texture." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/51881/.

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The surface of diamond grinding tool manufactured by current production method exhibits stochastic nature in terms of different grit size, irregular geometry, random crystallinegraphic orientation, non-uniform spacing, and varying protrusion heights. These topography characteristics has been found having various negative effects for the abrasive performance, especially in high-precision applications, causing less controllable surface topography, inefficient chip flow, high working temperature and cutting force. The thesis covers the design and manufacture of laser generated novel abrasive pad

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11

Шпилька, А. Н., та В. Л. Доброскок. "Анализ развитости рельефа рабочей поверхности шлифовальных кругов". Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/38173.

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Высокая режущая способность инструмента является одним из определяющих факторов процесса абразивно-алмазной обработки. В процессе шлифования режущие свойства круга снижаются за счет механического, адгезионного и диффузионного изнашивания, окисления режущих кромок зерен и их вырывания из связки, налипания продуктов шлифования на рабочую поверхность. Восстановление режущих свойств кругов требует существенных затрат производственного времени на периодическую правку, а для их непрерывного поддержания необходимо использование специального оборудования. При этом возникает необходимость объективной

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12

Hlídek, Petr. "Broušení ložiskových kroužků." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-402597.

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This thesis analyzes the transition from current abrasive to CBN abrasive in Koyo Bearings, Czech Republic s.r.o. There is a theoretical part which contains a brief description of the grinding theory. The experiment for grinding the raceways of bearing rings is performed and evaluated in the practical part.

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13

Ромашов, Д. В. "Создание методологии динамического 3D моделирования сверхскоростного шлифования сверхтвердых алмазно-композиционных материалов". Thesis, Сумский государственный университет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/38137.

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В настоящее время одним из наиболее перспективных направлений повышения эффективности операций шлифования и расширения его технологических возможностей является увеличение скорости резания, задаваемой частотой вращения круга. Сверхскоростное шлифование – это метод обработки со скоростями свыше 120м/с, который повышает производительность, точность и качество обработанной поверхности.

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14

Романченко, Павел Владимирович. "Совершенствование технологии изготовления абразивных кругов ручных шлифовальных машин для уменьшения их вибраций". Thesis, Украинский государственный научно-технический центр металлургической промышленности "Энергосталь", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/27919.

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Диссертация на соискание научной степени кандидата технических наук по специальности 05.03.01. процессы механической обработки, станки и инструменты. – Национальный технический университет "Харьковский политехнический институт", Харьков, 2016. Диссертация посвящена решению актуальной задачи уменьшения уровня вибраций РШМ при абразивной обработке металлопродукции до уровня требований к вибрационным характеристикам ручных машин. Основной причиной вибраций РШМ является неуравновешенность масс вращающегося абразивного круга. При условии обеспечения однородной структуры абразивного инструмента, не

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15

Романченко, Павло Володимирович. "Вдосконалення технології виготовлення абразивних кругів ручних шліфувальних машин для зменшення їх вібрацій". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/27914.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.03.01. процеси механічної обробки, верстати та інструменти. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2016. Дисертацію присвячено рішенню актуальної задачі зменшення рівня вібрацій РШМ при абразивній обробці металопродукції до рівня вимог щодо вібраційних характеристик ручних машин, шляхом підвищення точності виготовлення абразивних кругів. Для оцінки потрібного рівня точності абразивних кругів виконано аналіз її формування відносно таких параметрів як ексцентричність

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Таран, В. І. "Удосконалення технологічного процесу виготовлення корпуса 117.124.06.000-07 шляхом інтенсифікації операції круглого шліфування". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/75489.

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Процес шліфування є теплонапруженим процесом, тому необхідно регулювання рівня теплової напруженості в зоні шліфування шляхом використання нової технології правки абразивних кругів. У роботі виконано: - аналіз службового призначення машини, вузла та деталі; - аналіз технічних вимог на виготовлення деталі; - спроектована прогресивна заготовка з високим коефіцієнтом використання матеріалу; - розроблено прогресивний технологічний процес виготовлення деталі; - спроектовано верстатний пристрій для фрезерної операції; - виконано науково дослідну частину присвячену підвищенню ефективності проц

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17

Гусев, В. В., та А. Л. Медведев. "Зависимость режущей способности алмазного шлифовального круга от прочности связующей среды при управляющем воздействии свободным абразивом". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/11301.

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18

Furlani, Eddy. "Studio dell'abrasivo flessibile nel processo di satinatura dei materiali metallici." Doctoral thesis, Università degli studi di Padova, 2012. http://hdl.handle.net/11577/3423353.

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Surface grinding and finishing by abrasive belt is difficult because the basic physical mechanisms of this abrasion process are still not well understood. So, in the industry, the belt grinding and finishing setup is still based on empirical rules. For each new product specification, a lot of preliminary tests are indeed necessary to achieve the optimal operational configuration of the process. The grinding setup time is made longer by the fact that the process variables are numerous and the effects of their combinations are very difficult to evaluate. Relating to this particular abrasive fin

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Johnson, James Ballard. "Characterization of Optical Surface Grinding using Bound and Loose Abrasives." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/203478.

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Large optical systems fabrication is a demanding task due to the tight requirements and big scales. To make mirrors up to 8.4m in diameter necessitates technological development in materials, tooling, and metrology. These advancements are designed to not only produce optics on a near-unheard of scale, but to improve fabrication methods with each piece.For an optical surface to be properly polished, the amount of material removed during polishing must be greater than the volume of damage left behind by the grinding process. Mixed-mode grinding, which combines bound abrasives with a compliant bi

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André, Damien. "Modélisation par éléments discrets des phases d’ ébauchage et de doucissage de la silice." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14501/document.

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Les composants optiques de silice traversés par des flux lasers de haut niveau d'énergie à des longueurs d'onde de 351 nm peuvent être soumis à des endommagements. Il est admis que la présence de microfissures en sous surface, induit par les procédés d'abrasion des composants optiques, joue un rôle clé dans l'initiation des dommages lasers. Cette thèse propose de simuler le procédé de surfaçage par la méthode des éléments discrets afin de caractériser la densité et la répartition des microfissures en fonction des paramètres d'usinage<br>When fused silica optics are submitted to high-power lase

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Zhu, Nilton Xu Jun [UNESP]. "Análise de um processo abrasivo combinando em algumas características da lapidação e retificação." Universidade Estadual Paulista (UNESP), 2005. http://hdl.handle.net/11449/90824.

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Made available in DSpace on 2014-06-11T19:24:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2005-02-17Bitstream added on 2014-06-13T19:06:29Z : No. of bitstreams: 1 zhu_nxj_me_bauru.pdf: 4158261 bytes, checksum: bafc2c29b13e8c6fb309c4a1b184788a (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Atualmente tem-se verificado crescente demanda por processos de fabricação capazes de produzir peças sob estreitas faixas de tolerâncias dimensionais e geométricas. Dentre os processos utilizados para conferir acabamento superficial e correção de forma destacam-se a

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Silva, Tiago da [UNESP]. "Um sistema com um bloco de teflon e um bastão abrasivo para a limpeza da superfície de corte de rebolos." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/96500.

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Made available in DSpace on 2014-06-11T19:28:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2013Bitstream added on 2014-06-13T20:18:00Z : No. of bitstreams: 1 silva_t_me_bauru.pdf: 5556945 bytes, checksum: bfc0f29139dcb742000855aef9d22106 (MD5)<br>Uma técnica utilizada para substituir o método de lubri-refrigeração convencional é a mínima quantidade de lubrificante (MQL). Este método utiliza de uma mistura de óleo e ar à elevada pressão, reduzindo a quantidade de fluído de corte necessário para a usinagem. Entretanto, em diversos estudos feitos na área de retificação com MQL, nota-se

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Silva, Tiago da. "Um sistema com um bloco de teflon e um bastão abrasivo para a limpeza da superfície de corte de rebolos /." Bauru, 2013. http://hdl.handle.net/11449/96500.

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Orientador: Eduardo Carlos Bianchi<br>Banca: Gilberto de Magalhães Bento Gonçalves<br>Banca: Luciana Montanari<br>Resumo: Uma técnica utilizada para substituir o método de lubri-refrigeração convencional é a mínima quantidade de lubrificante (MQL). Este método utiliza de uma mistura de óleo e ar à elevada pressão, reduzindo a quantidade de fluído de corte necessário para a usinagem. Entretanto, em diversos estudos feitos na área de retificação com MQL, nota-se que há a necessidade de aperfeiçoamento dessa técnica com relação à limpeza da zona de corte do rebolo. Devido à dificuldade do baixo f

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Zhu, Nilton Xu Jun. "Análise de um processo abrasivo combinando em algumas características da lapidação e retificação /." Bauru : [s.n.], 2004. http://hdl.handle.net/11449/90824.

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Orientador: Luiz Eduardo de Angelo Sanchez<br>Banca: Carlos Alberto Fortulan<br>Banca: Carlos Elias da Silva Junior<br>Resumo: Atualmente tem-se verificado crescente demanda por processos de fabricação capazes de produzir peças sob estreitas faixas de tolerâncias dimensionais e geométricas. Dentre os processos utilizados para conferir acabamento superficial e correção de forma destacam-se a retificação e a lapidação. Porém, muitas peças mostram-se suscetíveis ao calor gerado pela retificação, como no caso da deformação de peças delgadas ou então naquelas peças passíveis de mudanças microestrut

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Vernhet, Laura. "Transfert métallique lors des opérations de toilage à sec des aciers : effet des charges actives." Thesis, Ecully, Ecole centrale de Lyon, 2015. http://www.theses.fr/2015ECDL0016.

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Dans les industries automobile et aéronautique, les opérations de finition des pièces métalliques sont souvent réalisées avec des bandes abrasives ; on parle alors de « toilage ». Lors des opérations de toilage à sec des aciers, les conditions à l’interface entre l’outil abrasif et la pièce métallique usinée sont très sévères en termes de pression et de température. Un transfert métallique, communément appelé « chargement métallique » est observé à la surface des grains abrasifs en céramique de la bande abrasive, entrainant une chute de ses performances de coupe. L’objectif de ce travail est d

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Canarim, Rubens Chinali. "Influência da friabilidade dos grãos abrasivos de rebolos de CBN na retificação cilíndrica externa de mergulho do aço AISI 4340." Universidade Estadual Paulista (UNESP), 2018. http://hdl.handle.net/11449/152669.

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Lavisse, Bruno. "Approche thermomécanique de l’interface meule/pièce/lubrifiant lors de la rectification de dentures d'engrenage en acier nitruré : impacts sur l’intégrité du matériau rectifié." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0190.

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La rectification est un procédé de fabrication permettant d’obtenir des états de surface avec une rugosité très faible. Elle est généralement utilisée sur des matériaux très durs pour lesquels les autres procédés d’usinage ne sont pas adaptés, cependant, ce procédé fait intervenir des mécanismes d’enlèvement matière complexes et difficiles à mettre en oeuvre. Lors du processus de rectification, l'énergie de rectification est principalement convertie en chaleur entre la pièce, la meule, le liquide d'arrosage et les copeaux. Les températures et les flux de chaleur à l'interface meule/pièce dépen

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Schmitt, Raoul. "A Geometallurgical Approach Towards the Correlation Between Rock Type Mineralogy and Grindability: A case study in Aitik mine, Sweden." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87012.

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Aitik is a large copper porphyry type deposit located in northern Sweden, currently exploited at an annual rate of approximately 45Mt. The ore's exceptionally low head grade of 0.22 % Cu and varying degrees of hardness across the entire deposit pose challenges to the two fully autogenous grinding lines, each of which comprises a 22.5 MW primary autogenous mill in series with a pebble mill. The variability in ore grindability frequently leads to fluctuations in mill throughput. Within the framework of a geometallurgical approach, the present study investigated the relationships between ore gri

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Wongkamhaeng, Kan. "Effect of chairside surface treatments on biaxial flexural strength and subsurface damage in monolithic zirconia for dental applications." Thesis, University of Iowa, 2016. http://ir.uiowa.edu/etd/3233.

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Objective: The goal of the present study was to investigate the effect of chairside surface treatments on biaxial flexural strength and subsurface damage of monolithic zirconia ceramics. Methods: Specimens (15x15x1.2 mm3) were prepared by sectioning from commercially available zirconia blanks (BruxZirTM) and sintering according to manufacturer's recommendations. Fully dense specimens were randomly divided into five groups (n=30) and treated as follows; 1) as-sintered (AS) 2) air abraded with 50 μm alumina fine particles (AAF), 3) air abraded with 250 μm coarse alumina particles (AAC), 4) groun

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Dobrovolný, Petr. "Možnosti využití skelného recyklátu pro přípravu směsných cementů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227741.

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This work focuses on the possibility of using recycled glass in the manufacture of blended portland cements. It examines the possibilities to improve pozzolanic properties of recycled glass with new milling processes, the formation of agglomerates material during the course of grinding and their subsequent effect on the hydration process of binders. It is also the optimization of the grinding process with respect to the wear of grinding bodies, grinding energy consumption and maximize the performance of the mill.

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Fernandes, Ulysses de Barros [UNESP]. "Análise de métodos de lubri-refrigeração aplicados no processo de retificação cilíndrica interna de mergulho em aços endurecidos." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/100925.

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Made available in DSpace on 2014-06-11T19:31:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-09-28Bitstream added on 2014-06-13T20:41:15Z : No. of bitstreams: 1 fernandes_ub_dr_bauru.pdf: 2660962 bytes, checksum: fc9e67e750b58c50d6c4a294d57f31a5 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>A operação de retificação cilíndrica interna de precisão tem sido empregada na fabricação de componentes de responsabilidade na indústria metal-mecânica em geral. As modernas retificadoras CNC aprimoraram este processo no que diz respeito ao posicionamento e à r

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Fernandes, Ulysses de Barros. "Análise de métodos de lubri-refrigeração aplicados no processo de retificação cilíndrica interna de mergulho em aços endurecidos /." Bauru : [s.l.], 2007. http://hdl.handle.net/11449/100925.

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Resumo: A operação de retificação cilíndrica interna de precisão tem sido empregada na fabricação de componentes de responsabilidade na indústria metal-mecânica em geral. As modernas retificadoras CNC aprimoraram este processo no que diz respeito ao posicionamento e à rigidez do sistema máquina-peça-ferramenta, possibilitando a obtenção de peças de elevada precisão com baixos valores de tolerâncias dimensionais. Todavia, tem-se observado nos últimos anos uma crescente conscientização quanto à toxidade dos fluidos de corte empregados na lubrificação e refrigeração da peça. Paralelamente, criou-

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Reichenwallner, Christopher, and Erik Tegevall. "Skivbytesrobotik i tuff miljö : Utvärdering och förslag på förbättringsåtgärder." Thesis, Uppsala universitet, Industriell teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-325064.

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Examensarbetet har utförts under 10 veckor i uppdrag av Outokumpu Stainless AB via Uppsala universitet. Outokumpus produktion i Avesta tillverkar rostfritt stål, där en del av det producerade stålet slipas för att få en finare yta och minska defekter. I sliphallen finns 8st slipmaskiner som alla måste servas med nya slipskivor när de gamla är nedslipade. Detta utförs av två robotar som automatiskt ska åka ut i sliphallen och byta ut de gamla slipskivorna. Problematiken ligger i dessa robotar, vars automation endast fungerar fullt ut ett fåtal av gångerna. Examensarbetet gick således ut på att

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Hsu, Yi-Chia, and 徐繹佳. "Coated abrasive disc grinding of titanium alloy with minimum quantity lubrication." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/07343385937129597827.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>105<br>This paper presents the mechanics of grinding titanium alloys (Ti-6Al-4V) in minimum quantity lubrication to the aspects of material removal, surface integrity, temperature and wear of coated abrasives following with confirmation in experimental works. In slumping of soda-lime glass with titanium mould, surface quality and integrity were greatly improved however surface finish on the titanium mould was still problematic due to its inherence low thermal conductivity. In this work, the developed analytical model suggested the influences of grit number, grinding

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CHO, KEN-I., and 卓耕毅. "Study on Magnetic Grinding of SUS304 Stainless Steel by Different Abrasive." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/89m48z.

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碩士<br>東南科技大學<br>機械工程研究所<br>105<br>In this paper, the surface defects and surface roughness of SUS304 stainless steel after undergoing processing are studied through vibration-assisted magnetic grinding and polishing parameters. In the experiment, the surface of SUS304 stainless steel was ground and polished with the parameter setting of polishing liquids of different concentrations, different magnetic pole rotation speeds, different vibration platform rotation speeds, different grit weights and numbers, and different silicon carbide and boron carbide particle sizes to discuss the surface rough

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Hsueh-An, Chen, and 陳學安. "Study on the Innovative Ceramic Abrasive Plate for Grinding Brittle Materials." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/whrs5r.

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碩士<br>國立勤益科技大學<br>機械工程系<br>106<br>In recent development of technology has increase rapidly, the demand for hard and brittle materials in the industry has been increasing year by year, and the application fields are more and more extensive, and it has good physical, optical and electronic properties, but due to high hardness and structural brittleness, the general traditional grinding process It is not easy to remove materials effectively, and it is necessary to use non-traditional grinding technology to effectively obtain hard and brittle materials with high material removal rate and high surf

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Yu, Yi-Hsun, and 余奕勳. "Study on Abrasive Electrical Discharge Grinding for Nickel-based Alloy Inconel 718." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/04742199226887494336.

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碩士<br>雲林科技大學<br>機械工程系碩士班<br>96<br>In this study, the grinding process has been investigated in the machining of nickel-based alloy Inconel 718 with traditional grinding and abrasive electrical discharge grinding (AEDG) technology. Moreover, grinding force, surface roughness and grinding wear will be discussed in this study. Three parts are discussed in this study: (a) using a dynamometer to measure the tangential grinding forces of grinding wheel and to analyze the data with PC, understanding the effects and improvements by introducing AEDG technology; (b) analyzing the surface roughness and g

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Anderson, David James. "Experimental and Numerical Investigations of Single Abrasive-Grain Cutting." 2011. http://hdl.handle.net/10222/13334.

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The cutting action of a single abrasive grain was investigated using a combination of high-speed scratch tests and finite element models. The high-speed scratch tests were unique in that the cutting conditions of a grinding operation were closely replicated. Two geometries were tested: a round-nosed stylus to approximate a 15-grit abrasive grain and a flat-nosed stylus to approximate a worn 46-grit abrasive grain. The three-dimensional finite element model was unique in that a hybrid Euler-Lagrange method was implemented to efficiently model the interaction between an abrasive grain and a w

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Chang, Hung-Jui, and 張紘睿. "The Effect of the Abrasive and Filler on Resin Bonded CBN Specimens for Grinding Steel." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/48813208136862657546.

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碩士<br>國立勤益科技大學<br>機械工程系<br>103<br>Grinding wheel comprises abrasive、bond and structure. In this study, it was used in the producing process of resin-bonded CBN specimen because they have the same ingredients. Their different geometric shapes, however, make it possible to reduce the experimental cost and the producing time and to observe the surface of microstructure of CBN specimens. In the past, grind wheel’s microstructure was observed by the fragment after grinding. Which failed to provide a comprehensive observation about the variation on bond and abrasive. To solve the above-mentioned pr

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Chinomona, Benvolence, and 齊班諾. "Modelling of Working Temperature in Dry and Minimum Quantity Lubrication Grinding of Aluminum Alloy (6061-T6) Using Coated Abrasive Disc." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/7x5a59.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>105<br>Grinding process results in high heat generation at the workpiece-grain interface and most of the heat goes into the workpiece, another fraction is absorbed by the grain and removed by MQL. These high temperatures to the workpiece causes rapid wear of the abrasive grains, surface and sub-surface alteration of the workpiece. A model of the working temperature in both dry and minimum quantity lubrication was developed. In this study, NaHCO_3 particles were spread out with high-pressure air when the threshold of 40°C was exceeded. The results show that the utiliz

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Tlotleng, Monnamme Titus. "Coal characteristics that lead to abrasion during grinding." Thesis, 2011. http://hdl.handle.net/10539/10572.

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Currently in South Africa there is no acceptable standard method for testing coals for abrasion. Abrasion is the tendency of coals to wear away machinery. The technique referred to as YGP (Yancey, Geer and Price), proposed and accepted in 1951, is most commonly used to test for abrasion. Over the years there have been some modifications to this method by both mining houses and coal users (such as Eskom) which have resulted in inconsistent and conflicting results. To this end, this study serves as part of a larger project that will aim at devising a standard method acceptable for testing

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Sokur, M., V. S. Biletskyi, M. Fyk, O. Fyk, and I. Zaselskiy. "The study of the lining layer abrasing wear in the semiautogenous grinding mill." Thesis, 2020. http://repository.kpi.kharkov.ua/handle/KhPI-Press/46212.

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In this work complex investigations of the abrasing wear of lining of self-grinding mills (semiautogenous grinding mills) are carried out with the obtaining of mathematical models of wear-abrasing of elevators in terms of height, weight, volume and worn-out area. In particular, according to the location and nature of the abrasing wear processes, the liner-lifters mill self-grinding are identified in three typical groups. During 1 year, in the conditions of Ingulets GOK, the monitoring of the abrasing wear of selected groups of lifters of self-grinding mills was performed. On the basis of the

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Kaidonis, John A. "An experimental study of the wear characteristics of human enamel during tooth grinding / John Aristidis Kaidonis." 1995. http://hdl.handle.net/2440/18528.

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Copies of author's previously published articles inserted.<br>Bibliography: leaves 136-155.<br>xxi, 180 leaves : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Examines tooth-to-tooth contact under controlled experimental conditions that simulate bruxism. Focuses on the wear characteristics of enamel and factors influencing the nature and extent of human enamel wear.<br>Kaidonis, John Aristidis<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Dentistry, 1995?

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Kaidonis, John Aristidis. "An experimental study of the wear characteristics of human enamel during tooth grinding / John Aristidis Kaidonis." Thesis, 1995. http://hdl.handle.net/2440/18528.

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Copies of author's previously published articles inserted.<br>Bibliography: leaves 136-155.<br>xxi, 180 leaves : ill. (some col.) ; 30 cm.<br>Examines tooth-to-tooth contact under controlled experimental conditions that simulate bruxism. Focuses on the wear characteristics of enamel and factors influencing the nature and extent of human enamel wear.<br>Kaidonis, John Aristidis<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Dentistry, 1995?

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