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Dissertations / Theses on the topic 'Milling steel'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Andersson, Axel. "Built-up edge formation in stainless steel milling." Thesis, KTH, Materialvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-213993.

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Milling tests were performed in stainless steel to investigate the formation of built-up edge (BUE). Three variants of tests were conducted which were divided as high-, medium, and low temperature milling tests. These tests were run in the austenitic stainless steel SS2343. The medium temperature milling tests were run in duplex SS2343 and precipitation hardened CORRAX. BUE was found for all tests. With the exception of the high temperature milling tests, BUE was formed locally on the main cutting edge. When milling at higher temperature the BUE covered the entire edge. All inserts used, each

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2

Ersvik, Erik, and Roj Khalid. "Milling in hardened steel - a study of tool wear in conventional- and dynamic milling." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-255646.

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Milling is a commonly used machining process where a rotating cutter removes material from the workpiece. In recent years, attention has been turned towards so called dynamic milling methods which differ from the conventional way of milling. Dynamic milling normally uses, as opposed to the conventional way, more of the axial cutting edge, smaller radial depth of cut, significantly higher cutting speed and feed per tooth. The method has demonstrated potential to save both time and money under specific circumstances, for manufacturing companies.This thesis was conducted at ISCAR Sverige AB in Up

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3

Wyatt, John. "High-speed face and end milling of stainless steel grades." Thesis, Southampton Solent University, 2002. http://ssudl.solent.ac.uk/630/.

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High speed machining was developed over sixty years ago and at present is still limited to just a few materials, these being aluminium and its alloys, hardened steels for the mould and die industry and titanium for aerospace applications. Recently there has been additional work in high speed machining on some of the more exotic aerospace alloys such as inconel and nimonic alloys. This thesis addresses the problems encountered when machining high chromium/nickel steel alloys that are part of the stainless steel family. Three grades of stainless steel were selected for this purpose, these being

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4

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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5

Shaikh, Vasim. "Mist and Microstructure Characterization in End Milling Aisi 1018 Steel Using Microlubrication." Thesis, University of North Texas, 2013. https://digital.library.unt.edu/ark:/67531/metadc283858/.

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Flood cooling is primarily used to cool and lubricate the cutting tool and workpiece interface during a machining process. But the adverse health effects caused by the use of flood coolants are drawing manufacturers' attention to develop methods for controlling occupational exposure to cutting fluids. Microlubrication serves as an alternative to flood cooling by reducing the volume of cutting fluid used in the machining process. Microlubrication minimizes the exposure of metal working fluids to the machining operators leading to an economical, safer and healthy workplace environment. In this d

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6

Fedrizzi, Anna. "Production of steel matrix composites by mechanical milling and spark plasma sintering." Doctoral thesis, Università degli studi di Trento, 2013. https://hdl.handle.net/11572/368107.

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Hot work tool steels (HWTSs) are ferrous alloys for tooling application, particularly developed to meet high toughness and good hot hardness. Increasing hardness generally leads to a decrease in toughness, therefore metal matrix composite (MMC) coatings and functionally graded materials have been proposed as a good solution for improving wear resistance. In this PhD thesis powder metallurgy has been applied for the production of particle reinforced HWTSs. Mechanical milling (MM) and mechanical alloying (MA) have been considered as suited techniques for the production of powders showing higher

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7

Fedrizzi, Anna. "Production of steel matrix composites by mechanical milling and spark plasma sintering." Doctoral thesis, University of Trento, 2013. http://eprints-phd.biblio.unitn.it/1025/1/Thesis_Fedrizzi.pdf.

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Hot work tool steels (HWTSs) are ferrous alloys for tooling application, particularly developed to meet high toughness and good hot hardness. Increasing hardness generally leads to a decrease in toughness, therefore metal matrix composite (MMC) coatings and functionally graded materials have been proposed as a good solution for improving wear resistance. In this PhD thesis powder metallurgy has been applied for the production of particle reinforced HWTSs. Mechanical milling (MM) and mechanical alloying (MA) have been considered as suited techniques for the production of powders showing highe

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8

Jonsson, Jonathan. "Different coatings effect on tool-life when milling hardened tool steels." Thesis, Karlstads universitet, Avdelningen för maskin- och materialteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-36663.

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Abstract This thesis work is about finding out which coating should be used for which hardened tool steel and this was done by testing different coated cutting tools in different kinds of tool steels. The thesis work is performed at Uddeholms AB together with Uddeholms AB in the department of R&D at machinability cooperating with eifeler-Vacotec GmbH. The thesis work is going on from the end of January to the start of June and is a part of the education as mechanical engineer at Karlstad University and includes a total of 22,5 hp. The objective after finished thesis work is to be able to l

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9

Niu, Caotan. "A study of tool life and machinability parameters in high speed milling of hardened die steels." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39557170.

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10

Zanuto, Rodolfo de Souza 1986. "Avaliação de diferentes estratégias de entrada no fresamento do aço inoxidável 15-5 PH." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264563.

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Orientador: Amauri Hassui<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-21T02:15:20Z (GMT). No. of bitstreams: 1 Zanuto_RodolfodeSouza_M.pdf: 2395857 bytes, checksum: 8416f382a0b6fea6d86adb4d90e04b73 (MD5) Previous issue date: 2012<br>Resumo: Com o rápido avanço tecnológico que o mundo vem passando desde a revolução industrial, novos materiais vão sendo desenvolvidos a todo momento, sendo o aço inoxidável aeronáutico 15-5 PH um destes exemplos contemporâneos, com grande potencial de aplicações, no entant

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11

Niu, Caotan, and 牛草坛. "A study of tool life and machinability parameters in high speed milling of hardened die steels." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39557170.

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12

Correa, Fabiano dos Santos 1977. "Estudos dos esforços de corte e vida de ferramenta no faceamento do aço inoxidável 15-5 PH utilizando fresas com insertos intercambiáveis de metal duro." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264574.

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Orientador: Amauri Hassui<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-23T20:30:13Z (GMT). No. of bitstreams: 1 Correa_FabianodosSantos_M.pdf: 5805847 bytes, checksum: 1e46e12c4b86d23df66529c421067901 (MD5) Previous issue date: 2013<br>Resumo: A vida da ferramenta juntamente com o tempo gasto para acertos quando a mesma é substituída pode representar uma significativa parcela do custo total do produto. Desta forma, a redução destes custos é de fundamental importância para o processo. Quando se utiliza f

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13

Hoseini, Saba. "Experimental simulation of gear hobbing through a face milling concept in CNC-machine." Thesis, KTH, Materialvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-126804.

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14

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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15

Некрасов, Сергій Сергійович, Сергей Сергеевич Некрасов та Serhii Serhiiovych Nekrasov. "Кинетика изменения радиуса округления режущего лезвия при фрезеровании нержавеющих сталей". Thesis, Изд-во СумГУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/5597.

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16

Werner, Mathias. "Theoretical and experimental studies of a single tooth milling process." Doctoral thesis, KTH, Industriell produktion, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104443.

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The industrial development of metal cutting processes in gear manufacturing aims at continuously increasing productivity, including increased tool reliability. Basically, the parameters that have an influence on the cutting processes should be known and possible to control. Gear manufacturing is highly important for the automotive industry. The prevalent manufacturing method is gear hobbing with hobs consisting of solid Powder Metallurgical High Speed Steel (PM HSS) with Physical Vapor Deposited (PVD) coatings. The hob teeth have to be reconditioned before wear reaches such levels that the gea

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Menezes, Luciano de Jesus 1977. "Estudo das condições dimensionais e forças geradas no fresamento de aço endurecido." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265866.

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Orientador: Amauri Hassui<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-26T13:19:17Z (GMT). No. of bitstreams: 1 Menezes_LucianodeJesus_M.pdf: 3153404 bytes, checksum: 2d45745d89221fa761d7b0111aaf819a (MD5) Previous issue date: 2014<br>Resumo: A evolução dos sistemas CAD/CAM, das máquinas-ferramenta CNC e das geometrias e materiais das ferramentas de corte tem tornado possível desenvolver processos de fabricação de moldes e matrizes mais eficazes. Normalmente, a quantidade de horas necessárias para a usi

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18

Zhang, Peipei. "Diffuse response surface model based on advancing latin hypercube patterns for reliability-based design optimization of ultrahigh strength steel NC milling parameters." Compiègne, 2011. http://www.theses.fr/2011COMP1949.

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Puisque les incertitudes des paramètres de systèmes mécaniques entrainent la variabilité de la performance du produit, les systèmes optimisés sans prendre en compte les incertitudes peuvent présenter le risque de défaillance. L'optimisation fiabiliste (RBDO) focalise ainsi l'attention des ingénieurs et des chercheurs. Cependant, les méthodes habituelles de RBDO présentent un coût informatique excessif. Donc, afin d'améliorer l'efficacité informatique de la résolution de problèmes de RBDO, il est naturel de faire appel à des approches basées sur les surfaces de réponse (RSM). Dans ce travail, n

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19

Носонова, Любов В`ячеславівна, Любовь Вячеславовна Носонова, Liubov Viacheslavivna Nosonova та Д. Л. Плужник. "Вплив процесу нітроцементації на властивості торцевої насадної фрези із сталі Р6М5". Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/8200.

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20

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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21

Hammond, Derek. "An investigation of the impact of selected cooling strategies on milling of difficult-to-cut materials with an emphasis on titanium alloys and hardened steel." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80372.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: The aerospace- and automotive industries have an urgency to save space and reduce weight, as well as a need to increase fuel efficiency and reduce emissions. This has led to the use of lightweight structural materials, such as Ti6A14V alloy, which is the most widely used titanium alloy in the aerospace industry. This alloy has an exceptional strength-to-density ratio. The work also covers studies on tool steel 40CrMnMo7 that is used in applications in the tooling-, aerospace and automotive industry. In the quest for impr

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22

Голобородько, Л. В., Сергей Сергеевич Некрасов, Сергій Сергійович Некрасов та Serhii Serhiiovych Nekrasov. "Экспериментальное исследование кинетики радиуса округления режущей кромки концевой фрезы". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/3851.

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23

Escolle, Bérenger. "Optimisation des outils de micro-fraisage destinés à l'usinage des aciers durs : cas des micro-fraises hémisphériques." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2023.

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L’objectif de ces travaux de thèse est l’optimisation par une approche expérimentale d’un modèle de micro-fraise hémisphérique en carbure de tungstène revêtu, de diamètre 0,5 mm, destiné à l’usinage des aciers durs. Les données expérimentales obtenues résultent donc de l’usinage d’un acier 40NiCrMo16 à l’état trempé (54 HRC). Les résultats permettent de mettre en évidence certains phénomènes de coupe, d’usure et de comportement dynamique de l’outil liés au procédé, et leur évolution en fonction du type de fraise considéré et des conditions de coupe choisies. La géométrie de l’outil et son comp

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24

Chakraborty, Pinaki. "Tool Life and Flank Wear Modeling of Physical Vapour Deposited TiAlN/TiN Multilayer Coated Carbide End Mill Inserts when Machining 4340 Steel Under Dry and Semi-Dry Cutting Conditions." Scholarly Repository, 2008. http://scholarlyrepository.miami.edu/oa_dissertations/22.

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This study investigates the tool wear of advanced PVD TiALN/TiN multilayer coated end mill inserts when dry and semi-dry machining 4340 low alloy medium carbon steel. A factorial design of experiment setup consisting of two levels of speed, three levels of feed, two levels of depth of cut, and two levels of cutting conditions (semi-dry and dry) was used for the study. The combination of cutting conditions that gave the best response for different components of cutting force, cutting power, surface roughness and tool life were determined using MANOVA & ANOVA analysis and Tukey comparison of mea

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Athukorala, Asitha Chandimal. "Investigation of wear and ratcheting response of head-hardened Australian rail steel under conditions of rolling contact fatigue." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/95626/9/Asitha_Athukorala_Thesis.pdf.

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The work in this thesis comprehensively investigates the effects of non-uniform material behaviour exhibited by head-hardened Australian rail steel on ratcheting, wear and rolling-contact fatigue. As a result, this research develops novel approaches to characterising rolling-contact fatigue utilising wear debris and surface replication. Furthermore, calibration of material parameters was conducted to obtain a unified material model to elucidate the non-uniform mechanical behaviour of rail steel. All these methods draw attention to the need to refine track maintenance and re-railing practices r

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Methon, Grégory. "Development of a 3D modelling strategy to predict efficiently cutting tool wear in face milling of 15-5PH." Thesis, Ecully, Ecole centrale de Lyon, 2022. http://www.theses.fr/2022ECDL0006.

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Avec la mondialisation des marchés, les fabricants n'ont d'autre choix que de modifier leur façon de concevoir et d'innover. Un besoin croissant d'outils flexibles et prédictifs se fait clairement sentir afin de non seulement réduire les étapes de développement et d'optimisation mais aussi de limiter les campagnes de validation expérimentales lourdes et d'aider à la prise de décision. La simulation numérique apparaît comme un outil pertinent répondant à ces critères et capable de relever ce défi. Le fraisage est l'une des opérations d'usinage les plus utilisées dans l'industrie. Elle permet de

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Teixeira, Filho Fernando. "A utilização de fluido de corte no fresamento do aço inoxidavel 15-5PH." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265565.

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Orientador: Anselmo Eduardo Diniz<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica<br>Made available in DSpace on 2018-08-06T20:25:31Z (GMT). No. of bitstreams: 1 TeixeiraFilho_Fernando_D.pdf: 16227324 bytes, checksum: 1e8eaf8a048f169a1964f67a6dd9bcce (MD5) Previous issue date: 2006<br>Resumo: O aço inoxidável endurecível por precipitação apresenta elevada resistência mecânica e à oxidação, tendo amplo campo de aplicações, em especial, na indústria aeronáutica. O presente trabalho avaliou a influência da utilização de fluido de corte no fresamento do

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Sória, Bruno Santana. "Estudo do comportamento das vibrações em fresamento frontal do aço inoxidável AISI 316 utilizando transformada de Wavelet." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/152768.

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O fresamento do aço inoxidável austenítico é um processo importante para a produção de peças em que se deseja alta resistência mecânica e à corrosão. No entanto, a usinagem desse material representa um desafio por suas características adversas ao corte. A alta taxa de encruamento e a alta dureza relativa fazem-no resistente ao corte, podendo gerar vibrações em diferentes faixas de frequência. Uma técnica importante ao processamento de sinais de vibração é a Transformada de Wavelet que permite analisar diferentes frequências do sinal através da subdivisão em aproximações e detalhamentos. Neste

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Jaroš, Aleš. "Nové frézovací nástroje z rychlořezné ocelí pro hrubovací operace." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234250.

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Dissertation thesis is focused on development, design and production of the new milling cutter which is used for roughing operations. High-speed steels, coating technology and milling technology are described in first chapters of dissertation thesis. The main part of this thesis is the design of the new milling cutter that has been designed on the basis of the machining simulation. The milling cutter is designed as a three-flute cylindrical end mill made of high speed steel. The each flute is composed of two special compensation edges. The compensation edges are used for reducing (at best supp

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Simondon, Esther. "Etude de l’élaboration d’aciers renforcés par dispersion d’oxydes par procédé alternatif de mécanosynthèse." Thesis, Rennes, INSA, 2018. http://www.theses.fr/2018ISAR0023/document.

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Dans le cadre du développement de matériaux de gainage combustible pour les réacteurs à neutrons rapides refroidis au sodium (RNR-Na), cette étude s’intéresse au développement d’un procédé innovant d’élaboration d’aciers renforcés par dispersion d’oxyde (aciers ODS) par mécanosynthèse qui doit éviter l’apparition de précipités de tailles micrométriques indésirables dont la présence dégrade drastiquement les propriétés mécaniques. Ce nouveau procédé consiste à introduire directement des nanoparticules d’oxydes de structure pyrochlore Y2Ti2O7 dans une poudre métallique Fe-Cr via un broyage. Pour

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Káčer, Pavel. "Frézování axiálních drážek v rotoru turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228097.

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The aim of this work is comparison of special form tools for manufacture of grooves in rotor turbine. For this purpose tools are chosen from „A“ and „B“ company. Form milling cutters are confronted both in terms of their characteristic features, manufacturing methods, and time and economy intensity. Furthermore, there is described a possible future way of grooves‘ production through the use of the „C“ ‘s programme. Apart from that, this thesis also involves simple programme for comparing the chosen parameters.

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Andrade, Igor Lopes de. "Otimiza??o do fresamento de roscas internas por interpola??o helicoidal." Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15725.

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Made available in DSpace on 2014-12-17T14:58:24Z (GMT). No. of bitstreams: 1 IgorLA_DISSERT.pdf: 5014153 bytes, checksum: b4c50270935571b9e1c875a8c15841c3 (MD5) Previous issue date: 2014-02-26<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>In machining of internal threads, dedicated tools, known as taps, are needed for each profile type, diameter, and low cutting speed values are used when compared to main machining processes. This restriction in the cutting speed is associated with the difficulty of synchronizing the tool s rotation speed and feed velocity in the p

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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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Dahmani, Rabah. "Optimisation d’un procédé d’usinage par microélectroérosion." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10058/document.

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L’objet de cette thèse est d’étudier un procédé de fraisage par microélectroérosion (μEE), qui est un procédé sans contact permettant d’usiner tous les matériaux durs conducteurs d’électricité à l’aide d’un micro-outil cylindrique ultrafin. Le principe consiste à créer des micro-décharges électriques entre le micro-outil et une pièce conductrice immergés dans un diélectrique liquide. En faisant parcourir à l’outil un parcours 3D, il est possible de creuser une forme complexe dans la pièce avec des détails à fort rapport d’aspect. Dans ce travail, nous avons tout d’abord amélioré un procédé d’é

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Kubíček, Antonín. "Vliv podmínek mechanického legování na kontaminaci práškových směsí a bulk materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416663.

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This thesis deals with the influence of process parameters on the contamination level of powder materials produced by mechanical alloying (MA) technology. For this purpose austenitic stainless steel 316 L and equiatomic CoCrFeNi high-entropy alloy (HEA) were prepared by high-energy ball milling. Both materials were milled in argon and nitrogen atmospheres from 5 to 30 hours. Spark plasma sintering method (SPS) was then used for consolidation of chosen powder samples. Chemical analysis of contamination within MA was carried out using combustion analysers for determination of carbon, oxygen, and

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Silva, J?nior Jos? Ferreira da. "Comportamento da adi??o do carbeto de ni?bio (nBC) na matriz met?lica do a?o ferr?tico 15kH2mfa." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12804.

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Made available in DSpace on 2014-12-17T14:07:10Z (GMT). No. of bitstreams: 1 JoseFSJ_TESE.pdf: 4970258 bytes, checksum: fcd6ec64fc7d0cdced502c9b8b4dd5f9 (MD5) Previous issue date: 2012-11-01<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>The 15Kh2MFA steel is a kind of Cr-Mo-V family steels and can be used in turbines for energy generation, pressure vessels, nuclear reactors or applications where the range of temperature that the material works is between 250 to 450?C. To improve the properties of these steels increasing the service temperature and the thermal stability

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ARAUJO, EDVAL G. de. "Efeito das adicoes de portadores de fosforo e da alumina na sinterizacao do aco rapido M2." reponame:Repositório Institucional do IPEN, 2000. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10766.

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Made available in DSpace on 2014-10-09T12:43:48Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:09:59Z (GMT). No. of bitstreams: 1 06776.pdf: 13953559 bytes, checksum: fbb8c77f5b5bada8939f5c8e246ef8e6 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP<br>FAPESP:95/03947-9

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Некрасов, Сергій Сергійович, Сергей Сергеевич Некрасов та Serhii Serhiiovych Nekrasov. "Повышение ресурса твердосплавных концевых фрез при обработке литейных сталей аустенитного класса". Thesis, Сумський державний університет, 2012. http://essuir.sumdu.edu.ua/handle/123456789/33955.

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У роботі розглянуто вплив початкового радіуса округлення різальної кромки кінцевої твердосплавної фрези на її працездатність під час фрезерування пазів у заготовках із ливарної сталі аустенітного класу. Встановлено та експериментально підтверджено характер зміни радіуса округлення різальної кромки кінцевої твердосплавної фрези під час обробки ливарної аустенітної сталі. Теоретично отримана залежність початкового радіуса округлення різальної кромки, який забезпечує максимальну працездатність інструмента, від режимів фрезерування. Отримані результати дозволяють встановити поєднання швидкості рі-

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Liu, Ho-Kang, and 劉鶴崗. "Study of High Speed End-Milling of Die Steel." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/19112822279424995629.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>88<br>The purpose of the study is to investigate the machining phenomena of high speed end-milling in both dry and wet cutting conditions. The cutting tool used in the experiments is a carbide tool; the working material is the die steel SKD11 (HRC60). The main issues discussed are as follows: the cutting force under dry and wet cutting with different machining parameters (i.e. different cutting speeds or feeds per tooth…etc), the tool wear, the surface roughness of the finished work piece, the shape of the chips, and the sticking layer on the flank and the crater su

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Lin, Hung-Hsiung, and 林鴻熊. "Studies of tool wear for milling hardened steel SKD11." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89413958693751823746.

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碩士<br>華梵大學<br>機電工程學系博碩專班<br>97<br>This paper was to investigate the effect of different tool geometries with rake angle and helical angle and different coatings of TiCN and TiAlN on tool wear under down milling and up milling of the hardened steel SKD11. The experiment results showed that when the down milling was employed to machine SKD11 steel, the resulting tool wear was smaller than that of up milling. This may be because the cutting temperature and the abrasive wear are lower. In addition, using the end mill with negative rake angle under the down milling showed a lower wear. The reason f

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Chen, Wei-Ming, and 陳維明. "study of milling cutters 17-4PH Stainless Steel Inspection Technological." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u4g6rx.

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碩士<br>元智大學<br>機械工程學系<br>105<br>17-4PH Stainless Steel is widely used from light to heavy industry. Due to its outstanding features, 17-4PH Stainless Steel has effective performance in various uses. The 17-4PH Stainless Steel material contains the features such as anti- rust, anti- oxygen, etc, milling cutters is one of the commonly used operations in Stainless Steel metal machining. This research optimize the milling and angle inclination varied, utilizesTaguchi method L9(33) Orthogonal Array table to do experimental design. It also utilizes The Mimum-is-best quality characteristics produce t

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Tsai, Chi-Lung, and 蔡吉隆. "Investigation of burr formation on SUS304 stainless steel face milling." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/83510497169510155418.

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碩士<br>國立中興大學<br>機械工程學系所<br>98<br>The burrs will definitely appear in mechanical process. In order to avoid the problems caused by burrs, The above problems all indicate that the burrs must be removed during processing. Stainless steel has been widely used in our lives, because it has good tensile strength, fatigue strength, creep and other mechanical properties. Therefore, it is difficult to remove the burrs formed during mechanical process. In this thesis, 304 stainless steel is the main topic and the application of Taguchi method is used in face milling experiment. I select four factors as

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Zheng, Ming-Yuan, and 鄭茗元. "Investigation of the Milling Characteristics of Hardened SKD61 Tool Steel." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/cf2j26.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>90<br>Abstract This thesis investigates the influence of shearing and ploughing mechanism on milling characteristics of the hardened SKD61 tool steel by the analytical force models on face milling and ball end milling processes. The effect of flank wear on shearing and ploughing cutting constants is then studied through milling experiments. According to the experiments results, it is shown that increase of the flank wear only affects the shearing cutting constant slightly , but the ploughing cutting constant increases significantly with the flank wear. The

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Jong, Gwo-Shiunn, and 鐘國訓. "Studies on Precision Milling Characteristics of Chromium - Molybdenum Alloy Steel." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/67372319281044386204.

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Cowling, Peter I., D. Ouelhadj, and S. Petrovic. "Dynamic Scheduling of Steel Casting and Milling using Multi-agents." 2009. http://hdl.handle.net/10454/2989.

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No<br>This paper presents a case study on the use of multi-agents for integrated dynamic scheduling of steel milling and casting. Steel production is an extremely complex problem requiring the consideration of several different constraints and objectives of a range of processes in a dynamic environment. Most research in steel production scheduling considers static scheduling of processes in isolation. In contrast to earlier approaches, the multi-agent architecture proposed consists of a set of heterogeneous agents which integrate and optimize a range of scheduling objectives related to differe

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Yang, Chih-Hsiung, and 楊志雄. "A Three Dimensional Milling Force Model and Process Optimization for the Slot Milling of Cr-Mo steel." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/68774427901776747728.

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Lo, Wei-Chi, and 羅瑋琪. "Treatment of oil refining and steel-milling wastewater by constructed wetland." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/59708213625812500397.

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碩士<br>國立中山大學<br>海洋環境及工程學系研究所<br>90<br>Constructd wetland system is one of the ecological engineering technologies used on wastewater treatments. In this study, we discussed the treatment efficiencies of oil refining and steel-milling wastewater by four lab-scale constructed wetland systems (0.8-m long by 0.4-m wide by 0.7-m deep), which were all filled with gravel media, and planted with Phragmites communis. The constructed wetland systems were designed into two types: free water surface (FWS) and subsurface flow (SSF) wetland systems, which were discharged with two different types of wastewat

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Lin, Yao-Shuang, and 林垚霜. "The Optimization of Mold Steel Milling Parameter Using the Taguchi Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/73347175685278583529.

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碩士<br>國立雲林科技大學<br>工業工程與管理研究所碩士班<br>97<br>Because of design variety on Mold Steels, the machining time fluctuates a lot and not easily to be standardized, thus the machining process on Mold Steel is more difficult and complex than general machined parts. This research used Taguchi Methods to optimize the milling production parameters of Mold Steels to have the best surface roughness. The results show that the factors affecting the surface roughness in order of importance are the material of cutters, cooling method, cutting depth, Spindle speed and Cutting feed. As to S/N, the most significan

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Liu, Yi-Xian, and 劉懿賢. "A Study for the Electrochemical Slot Milling of 304 Stainless Steel." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/93630598936321339844.

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碩士<br>華梵大學<br>機電工程研究所<br>94<br>The purpose of the paper was to investigate the manufacturing processes for the electrochemical slot milling of SUS 304 stainless steel. The effect of the electrolyte composition, the current density, and the electrolyte temperature on the geometrical slot accuracy, the material removal rate, and surface characteristics was studied. Design and equipments of the Electrochemical Slot Milling of SUS 304 Stainless Steel were established and the related techniques of the fabrication processes were also developed. The experimental results showed that when a lower cur

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Yang, Zhong-Xiang, and 楊忠祥. "Investigation of tool life on S50C medium carbon steel fine milling." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/69919765046721071533.

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碩士<br>國立中興大學<br>機械工程學系所<br>100<br>Processing, the impact of the workpiece surface roughness for many reasons, including cutting parameters accounted for a considerable degree of influence. Will gradually in the cutting process of tool wear and cutting force with workpiece contact. reducing the cutting performance on the material, the surface roughness increased with the increase in wear. In this thesis,tool wear according to fine milling of the workpiece surface roughness, the decision point base on workpiece roughness of the maximum allowable. Taguchi method to investigate the relationship be

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