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Dissertations / Theses on the topic 'Worm milling'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Метенко, П. Ю. "Конструкторське та технологічне забезпечення виробництва прямозубих коліс". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/75848.

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Кваліфікаційна робота магістра становить 96 сторінки, в тому числі 36 рисунків, 7 таблиць, бібліографії із 48 джерел на чотирьох сторінках, шести додатків на 17 сторінках. Металорізальні верстати складають основну частину технологічного обладнання. В наш час застарілі прилади та верстати все ще використовуються у виробництві, а отже, є потреба в їх модернізації та своєчасному ремонті. Таким чином, постає проблема в забезпеченні цих робіт необхідними деталями з необхідною точністю. Мета та завдання роботи. Метою даного дипломного проекту було розроблення конструкторського та технологіч

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2

Гребченко, А. О. "Спосіб нарізання черв'ячних коліс на зубофрезерному верстаті та дослідження жорсткості супорта". Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31245.

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В сучасному машинобудуванні при виробництві циліндричних зубчастих коліс широке впровадження отримали черв’ячні зуборізні фрези. Процес характеризується складними умовами різання, що виникають при обробці черв’ячних коліс методом тангенціальної подачі. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/31245

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3

Deiab, Ibrahim Mostafa Elbestawi Mohamed Abdel Aziz. "Effect of fixture dynamics on the face milling process /." *McMaster only, 2003.

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4

Yuan, Weifeng. "Greedy tool heuristic for rough milling of complex pockets /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?IEEM%202002%20YUAN.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 48-52). Also available in electronic version. Access restricted to campus users.

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5

Abrari, Farid. "Multi-axis milling of flexible parts /." *McMaster only, 1998.

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6

Lazoğlu, İsmail. "Analysis of force system in ball-end milling." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/16022.

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7

張志明 and Chi-ming Reuben Cheung. "A computer aided experimental system for milling force modelling." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31212189.

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8

Köksal, Sakip. "Face milling of nickel-based superalloys with coated and uncoated carbide tools." Thesis, Coventry University, 2000. http://curve.coventry.ac.uk/open/items/86a6b065-704a-475b-b805-9d3397487ddf/1.

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Face milling machinability investigation of two difficult-to-machine nickel-based superalloys, namely Inconel 718 and Waspaloy, has been carried out with four different types of tungsten carbide tools under various cutting conditions. The tools comprised of one double-layer CVD-TiCN+Al2O3 coated (KC994M), two PVD-TiN coated (KC720 and KC730) and one uncoated (KMF) tungsten carbide tools. The objectives of the study include investigation of tool performance, failure modes and wear mechanisms under the cutting conditions employed. In addition, surface integrity of the machined surfaces, with reg

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9

Joubert, H. J. "Investigation of lubrication strategies in Ti6Al4V milling operations." Thesis, Stellenbosch : Stellenbosch University, 2008. http://hdl.handle.net/10019.1/1936.

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Thesis (MScEng (Industrial Engineering))--Stellenbosch University, 2008.<br>There is a growing global demand for titanium. The aircraft industry is the driving force behind the demand for titanium. The reason for this is that titanium has attractive properties that justify its use both economically and environmentally. Titanium alloys have superior strength-to-weight ratios. This implies that by substituting components manufactured from other metals in the aircraft with titanium components, a substantial reduction in structural weight can be achieved. From an economical point of view a l

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10

Majeti, Viswanath. "Integration of milling operations into the intelligent machining workstation." Ohio : Ohio University, 2000. http://www.ohiolink.edu/etd/view.cgi?ohiou1172602307.

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11

Sodemann, Angela Ann. "A study on productivity enhancement in high-speed, high-precision micromilling processes." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31764.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Major, J. Rhett; Committee Member: Melkote, Shreyes; Committee Member: Ozdoganlar, Burak; Committee Member: Shi, Jan; Committee Member: Ume, I. Charles. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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12

Wang, Jiunn-Jyh Junz. "Convolution modeling of milling force system and its application to cutter runout identification." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/17318.

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13

Edes, Benjamin T. "Helical tool geometry in stability predictions and dynamic modeling of milling." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5002.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 9, 2009) Includes bibliographical references.

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14

Liles, Howard J. "High throughput profile millling for the flexible and accelerated processing of electric steels." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47628.

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The proliferation of electric machines has drastically increased in recent years and is likely to increase into the future. This interest in the production of advanced, high power density electrical machines that are small in size has heightened the need for flexible manufacturing processes to produce their laminated components during short batch and prototyping production runs. A means of cost effective, accelerated prototyping of these machines will have a substantial impact on their design and optimization, reducing time requirements to produce and test a given design. A review of the curre

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15

Newby, Glynn. "Empirical analysis of cutting force constants in micro end milling operations." Thesis, Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-05202005-082651/.

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16

Barnett-Ritcey, Dwayne D. Elbestawi Mohamed Abdel Aziz. "High-speed milling of titanium and gamma-titanium aluminide: An experimental investigation /." *McMaster only, 2004.

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17

Choi, Young Gu. "An integrated computer simulation system to evaluate surface integrity in end milling /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9717175.

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18

Huang, Zhenguo. "Effects of compositions and mechanical milling modes on hydrogen storage properties." Access electronically, 2007. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20080619.121505/index.html.

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19

Andersson, Niklas. "Modelling of metal removal rate in titanium alloy milling." Thesis, Högskolan i Gävle, Maskinteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-27011.

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Titanium is one of fourth most abundant structural metal in earths soil. It is in a composition with other elements, forming titanium alloys. These alloys are used in many different areas, such as medical, energy and sports, but is most commonly used in aerospace applications. Titanium alloys have different solid phases, α, α+β and β depending on temperature and the amount of α and β-stabilizers.When machining titanium alloys, one of the most important factors to control is the temperature in the cutting zone. The built-up heat in the cutting edge of the tool, are connected to titanium alloys

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20

Lohse, Benjamin H. "The controlled ball milling of titanium and carbon to form TiC /." Access electronically, 2005. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20060221.110552/index.html.

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21

Toh, Chun Kiong. "Evaluation of cutter path strategies and orientations when high speed milling hardened AISI H13 work tool steel." Thesis, University of Birmingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.422919.

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The use of High Speed Milling (HSM) for the production of moulds and dies is becoming more widespread. Critical aspects of the technology include cutting tools, machinability data, cutter path generation and technology. Much published information exists on cutting tools and related data (cutting speeds, feed rates, depths of cut, etc.), however, relatively little information has been published on the evaluation of cutter paths for this application. Most of the research work is mainly focused on cutter path generation techniques. Works with regard to cutter path evaluation on tool wear and tool

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22

Moetakef-Imani, Behnam. "Model based die cavity machining simulation methodology /." *McMaster only, 1997.

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23

Oosthuizen, G. A. "Innovative cutting materials for finish shoulder milling Ti-6A1-4V aero-engine alloys." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/1561.

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Thesis (MScEng (Industrial Engineering))--University of Stellenbosch, 2009.<br>The titanium alloys have found wide application in the aerospace, biomedical and automotive industries. Soaring fuel prices and environmental concerns are the fundamental drivers that intensify the demand situation for titanium. From a machining viewpoint, one of the challenges companies face, is achieving high material removal rates while maintaining the form and function of the part. The ultimate aim for a machining business remains to make parts quickly. Conventional cutting speeds range from 30 to 100 m/min in t

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24

Pisipati, Deepak. "Virtual manufacturing of pockets using end milling with multiple tool paths." Ohio : Ohio University, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1177011829.

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25

De, Bruyn Ruan. "Improving and implementing advanced milling techniques for the manufacture of selected titanium aerospace parts." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96139.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: There is a strong focus on the use of titanium and its alloys in the aerospace industry due to the high ultimate tensile strength and high strength-to-weight ratio of the material. The high performance nature of the material also makes it difficult and costly to machine. South Africa has the second most abundant titanium resources in the world in the form of rutile and ilmenite but no value chain to produce titanium parts from the ore. Currently, the ore is sold overseas at low prices. There exists an initiative to create a ful

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26

Morris, Clifton F. "The development of a family ministry for the Millen Baptist Church." Theological Research Exchange Network (TREN), 1987. http://www.tren.com.

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27

Braun, Lavinia Sophia. "South Africa's stepchild : reading the work of Sarah Gertrude Millin with emphasis on its biblical and Judaic aspects (1909-1951)." Thesis, University of Oxford, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241282.

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28

Norcino, Adriana Bruno [UNESP]. "Uma contribuição ao estudo das tensões residuais no fresamento." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/111085.

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Made available in DSpace on 2014-12-02T11:16:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-08-21Bitstream added on 2014-12-02T11:20:56Z : No. of bitstreams: 1 000792987.pdf: 4111727 bytes, checksum: 017f0ba351e83931e66d4d3b81d00708 (MD5)<br>A usinagem de moldes e matrizes possui grande potencial de expansão e expressiva importância econômica. O processo de fresamento é amplamente empregado na confecção de cavidades de moldes e pode ser um substituto ao processo de eletroerosão (EDM), gerando superfícies com melhor integridade superficial. Sabe-se que as tensões residuais podem se

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29

Norcino, Adriana Bruno. "Uma contribuição ao estudo das tensões residuais no fresamento /." Ilha Solteira, 2013. http://hdl.handle.net/11449/111085.

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Orientador: Alessandro Roger Rodrigues<br>Co-orientador: Adriano Fagali de Souza<br>Banca: Wyser Jose Yamakami<br>Banca: Aldo Braghini Júnior<br>Resumo: A usinagem de moldes e matrizes possui grande potencial de expansão e expressiva importância econômica. O processo de fresamento é amplamente empregado na confecção de cavidades de moldes e pode ser um substituto ao processo de eletroerosão (EDM), gerando superfícies com melhor integridade superficial. Sabe-se que as tensões residuais podem ser geradas nos processos de usinagem e são apontadas como uma das possíveis causas de falhas em compone

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30

Pivetta, Carlos Sergio. "Uma contribuição ao estudo do fresamento de aço endurecido com fresa de topo esferico." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265603.

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Orientador: Anselmo Eduardo Diniz<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-05T19:57:39Z (GMT). No. of bitstreams: 1 Pivetta_CarlosSergio_M.pdf: 2572259 bytes, checksum: d75f09a259545ac56a46ecc1d5870ba0 (MD5) Previous issue date: 2005<br>Resumo: O fresamento de cavidades de moldes e matrizes em material endurecido usando ferramenta de topo esférico tem limitações em termos de profundidades das cavidades, da taxa de remoção de cavaco e da vida da ferramenta. Algumas operações de fresamento em cavidade

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31

Garcia, Ubirajara [UNESP]. "Estudo da aplicação de mínima quantidade de fluido no fresamento de acabamento da liga Ti-6Al-4V." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132184.

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Made available in DSpace on 2015-12-10T14:24:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-05-27. Added 1 bitstream(s) on 2015-12-10T14:30:39Z : No. of bitstreams: 1 000852079_20160527.pdf: 384748 bytes, checksum: d13287fe4bb4e50857976157165dd2ee (MD5) Bitstreams deleted on 2016-05-30T11:37:07Z: 000852079_20160527.pdf,. Added 1 bitstream(s) on 2016-05-30T11:37:52Z : No. of bitstreams: 1 000852079.pdf: 3951366 bytes, checksum: 259ae6df8d263a1d123b5707ff472b77 (MD5)<br>Reduzir o uso de fluidos de corte em operações de usinagem é uma meta que tem sido buscada na indústria devido ao

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32

Garcia, Ubirajara. "Estudo da aplicação de mínima quantidade de fluido no fresamento de acabamento da liga Ti-6Al-4V /." Guaratinguetá, 2015. http://hdl.handle.net/11449/132184.

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Orientador: Marcos Valério Ribeiro<br>Banca: José Vitor Candido de Souza<br>Banca: Manoel Cleber de Sampaio Alves<br>Banca: Rosemar Batista da Silva<br>Banca: João Roberto Ferreira<br>Resumo: Reduzir o uso de fluidos de corte em operações de usinagem é uma meta que tem sido buscada na indústria devido aos problemas ecológicos e de saúde humana, causados pelos fluidos de corte. No entanto, os fluidos de corte ainda promovem uma vida de ferramenta mais longa para muitas operações de usinagem. Este é o caso da operação de fresamento de acabamento da liga de titânio Ti6Al4V usando pastilhas de met

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33

Ilie, Andreea. "On the use of compensated machining paths to alleviate three-lobed deformations." Thesis, Blekinge Tekniska Högskola, Institutionen för maskinteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20041.

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During turning, the neck of a workpiece is three-lobed deformed due to the clamping pressure on the gripping jaws. While the workpiece is deformed, the machining tool will cut along a preprogrammed circular path. After removal from the chuck, the material returns to its original shape thus deforming the circular path. This means the processed part is no longer circular, as it should be. Typically, this type of problem is usually solved by changing the fixtures (jaws) or adjusting the clamping pressure. This thesis takes a different approach that is based on creating a compensated toolpath tha

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34

Ost, Charles Antonio. "Análise da qualidade superficial no fresamento de aço P20 com diferentes tratamentos de ferramentas e condições de lubrirrefrigerantes." reponame:Repositório Institucional da UCS, 2016. https://repositorio.ucs.br/handle/11338/1426.

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Este trabalho estudou o efeito de tratamentos de gume e a interação com a aplicação de mínima quantidade de lubrirrefrigerante (MQL) sobre a integridade superficial da peça e desgaste no fresamento. A necessidade de alta produtividade das industrias aliada a alta eficiência que estas necessitam impulsionam avanços tecnológicos na área da usinagem. Processos de tratamento de gume vem para atender estas necessidades, aumentando a durabilidade e confiabilidade das ferramentas. Por outro lado, a necessidade de economia em fluidos de usinagem, sem perder em desempenho impulsiona a utilização de alt

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35

Berglund, Anders. "Criteria for Machinability Evaluation of Compacted Graphite Iron Materials : Design and Production Planning Perspective on Cylinder Block Manufacturing." Doctoral thesis, KTH, Industriell produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-48430.

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The Swedish truck industry is looking for new material solutions to achieve lighter engines with increased strength to meet customer demands and to fulfil the new regulations for more environmentally friendly trucks. This could be achieved by increasing the peak pressure in the cylinders. Consequently, a more efficient combustion is obtained and the exhaust lowered. This, however, exposes the engine to higher loads and material physical properties must therefore be enhanced. One material that could meet these demands is Compacted Graphite Iron (CGI). Its mechanical and physical properties make

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36

Barrios, André Nozomu Sadoyama. "Metodologia para estimativas de fluxo de calor na peça em operações de fresamento." Universidade Tecnológica Federal do Paraná, 2018. http://repositorio.utfpr.edu.br/jspui/handle/1/3147.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Um dos processos de usinagem com maior emprego na indústria é o fresamento. O estudo da área térmica no fresamento é um desafio, por ser um processo em que o corte ocorre numa região bem específica de difícil acesso para sua correta mensuração. Uma das soluções para análise da temperatura no processo de usinagem é a utilização de modelos térmicos resolvidos por métodos matemáticos que trazem boas estimativas. Atualmente, além dos softwares desenvolvidos no ambiente acadêmico, existem também ferramentas computacionais dispon

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37

Ковальов, Сергій Федорович, Сергей Федорович Ковалев та Serhii Fedorovych Kovalov. "Вдосконалення робочого процесу та обгрунтування конструкції багатофункціонального агрегату-млина гідродинамічного принципу дії". Thesis, Вид-во СумДУ, 2013. http://essuir.sumdu.edu.ua/handle/123456789/30580.

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У дисертаційній роботі наведені результати вирішення наукової задачі, яка полягає в дослідженні робочого процесу та визначенні залежності енергетичних характеристик БАГМ від конструктивних параметрів проточної частини, частоти обертання ротора машини, подачі і параметрів робочого середовища. У результаті числового моделювання отримані картини течії у проточній частині гідромлина, адекватність яких підтверджена порівнянням інтегральних характеристик, отриманих фізичним та числовим методами. Шляхом аналітичної обробки результатів фізичного дослідження робочого процесу гідромлина на рідині, встан

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38

Andersson, Henrik. "Yt- och strukturpåverkan vid finfräsning av härdat verktygsstål." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-51787.

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I detta examensarbete har undersökningar kring finfrästa ytor i härdat verktygsstål utförts i samarbete med verktygsstålsproducenten Uddeholms AB i Hagfors. Vid spånskärande bearbetning påverkas materialet ibland negativt. En försöksserie om totalt 90 finfrästa ytor i härdade varmarbetsstålen Uddeholm Orvar Supreme och Uddeholm Dievar har frästs, mätts och utvärderats för att ta reda på hur fräsprocessen inverkar på materialets egenskaper. Det visar sig att materialet påverkas olika mycket beroende på hur fräsningen utförs och med vilken typ av fräsverktyg som används. I detta arbete har endas

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39

Tavares, Lucas Alves. "O envolvimento da proteína adaptadora 1 (AP-1) no mecanismo de regulação negativa do receptor CD4 por Nef de HIV-1." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/17/17136/tde-06012017-113215/.

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O Vírus da Imunodeficiência Humana (HIV) é o agente etiológico da Síndrome da Imunodeficiência Adquirida (AIDS). A AIDS é uma doença de distribuição mundial, e estima-se que existam atualmente pelo menos 36,9 milhões de pessoas infectadas com o vírus. Durante o seu ciclo replicativo, o HIV promove diversas alterações na fisiologia da célula hospedeira a fim de promover sua sobrevivência e potencializar a replicação. A rápida progressão da infecção pelo HIV-1 em humanos e em modelos animais está intimamente ligada à função da proteína acessória Nef. Dentre as diversas ações de Nef está a regula

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40

Chen, Chin-Hsin, and 陳進興. "Influence of High Speed Milling Parameters on Surface Roughness of SKD61 Hot Work Die Steels." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/87416196045189075987.

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碩士<br>國立彰化師範大學<br>工業教育與技術學系<br>102<br>This thesis aimed to investigate the hot working tool steel SKD61 (DHA-WORLD by Datong steel Co., Ltd., Japan), which is commonly used for die casting molds, as a research tool of milling experiments. In the study a physical workpiece was used to conduct milling experiments and then to obtain the optimum parameters for high speed milling. First, the hot work die steels were heat treated to hardness of HRc48-50. Four-flute tungsten carbide end mills with round nose, named ψ6-LH2BZC-060, were utilized as the experimental cutting tools, which are coated a lay

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41

"Milli-meter-scale turning centre: theory and implementation." 2007. http://library.cuhk.edu.hk/record=b5893486.

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Chan, Ngai Shing.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.<br>Includes bibliographical references (leaves 67-70).<br>Abstracts in English and Chinese.<br>Abstract --- p.I<br>摘要 --- p.III<br>List of Figures --- p.VI<br>List of Tables --- p.VIII<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Background Information --- p.2<br>Chapter 1.1.1 --- Project Background --- p.2<br>Chapter 1.1.2 --- Literature Review --- p.4<br>Chapter 1.1.3 --- Background on Gear Hobbing --- p.10<br>Chapter 1.1.4 --- Traditional gear hobbing machines --- p.12<br>Chapter 2 --- Design

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