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Dissertations / Theses on the topic 'Ball-milling'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Chieng, Heng Liang Norman, and n/a. "Amorphous drug preparation using ball milling." University of Otago. School of Pharmacy, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081209.162001.

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Polymorphism and crystallinity are now recognised as important issues in drug development. This is shown by the increased amount of research in this area over recent years. In pharmaceutical development milling is an important unit operation for size reduction to improve powder handling, processing and dissolution rate. The aim of this thesis was to investigate the effect of ball milling (and cryo-milling) on the solid state properties, including amorphous drug formation, of pharmaceutical solids. Milling was carried out using an oscillatory ball mill (Mixer Mill MM301, Retsch GmbH & Co., Ge

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2

Wagner, Meghan. "Investigating carbocations using high speed ball milling." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1352402944.

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3

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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4

Rail, Alexandre. "Model-based control of metal powder ball milling." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102157.

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At Domfer Metal Powders, the ball milling operation is critical since it determines many characteristics of the final product, such as density, green strength, compressibility and dimensional change. Highly variable input material properties and operational procedures accompanied by poor product feedback frequency generate large variations in powder properties. The goal of the research is to develop a model-based control system for the ball milling process of metal powder. The following research objectives are aimed at reducing process variations while maximizing throughput: include ball mill

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5

Waddell, Daniel C. "Environmentally friendly synthesis using high speed ball milling." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1330024874.

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6

Ghasdi, Manghootaee Mohammad. "PEROVSKITE GAS SENSOR. Prepared by High Energy Ball Milling." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29985/29985.pdf.

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L'objectif de ce projet est d'explorer la possibilité d’utiliser des oxydes mixtes nanostructurés obtenus par broyage à haute énergie (HEBM en anglais) dans des capteurs de gaz des oxydes mixtes à haute performance et à faible coût. Les compositions chimiques, LaFeO3 et LaCoO3, ont été choisies en fonction de leurs propriétés intrinsèques de détection de gaz proposées dans la littérature. L'effet des paramètres de synthèse sur leurs performances de détection de gaz a été étudié. Ce projet est divisé en trois étapes. Dans la première étape, les paramètres de synthèse ont été optimisés pour obte

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7

Fabián, Martin, Maxym Myndyk, Silva Klebson L. Da, et al. "Structural properties of nanocrystalline olivine prepared by ball milling." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-188155.

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8

Fabián, Martin, Maxym Myndyk, Silva Klebson L. Da, et al. "Structural properties of nanocrystalline olivine prepared by ball milling." Diffusion fundamentals 12 (2010) 84, 2010. https://ul.qucosa.de/id/qucosa%3A13906.

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9

Mankosa, Michael James. "Investigation of operating conditions in stirred ball milling of coal." Thesis, This resource online, 1986. http://scholar.lib.vt.edu/theses/available/etd-03122009-040831/.

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10

Acar, Cemil. "Investigation Of Particle Breakage Parameters In Locked-cycle Ball Milling." Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615427/index.pdf.

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Size reduction processes, particularly fine grinding systems, in mineral processing and cement production plants constitute a great portion of energy consumption and operating costs. Therefore, the grinding systems should be designed properly and operated under optimum conditions to achieve productive and cost effective operations. The use of simulation based on kinetic mathematical models of grinding has proven useful in this respect. The kinetic models contain two essential parameters, namely, breakage rate and breakage distribution functions, that are to be determined experimentally, and pr

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11

Brown, Andrew Paul. "Synthetic titanomagnetite : the effect of ball-milling, maghemitization and inversion." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388658.

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12

Darvishi, Alamdari Houshang. "Varistors prepared from nanocrystalline powders obtained by high-energy ball milling." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60765.pdf.

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13

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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14

Pal, Santosh Kumar. "Anisotropic hard magnetic nanoparticles and nanoflakes obtained by surfactant-assisted ball milling." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-193165.

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The research work in this thesis has been devoted to understand the formation mechanism of single-crystalline and textured polycrystalline nanoparticles and nanoflakes of SmCo5 and Nd2Fe14B prepared by surfactant-assisted (SA) ball milling and to study their microstructural and magnetic properties. The nanoparticles and nanoflakes are promising candidates to be used as hard magnetic phase for the fabrication of high-energy-density exchange-coupled nanocomposite magnets. The influence of a range of different surfactants, solvents and milling parameters on the characteristics of ball-milled powd

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15

Xu, Weiyue. "Development of Al93Fe3Cr2Ti2/ nano-size γ-Al2O3 nanocomposite by ball milling process". Thesis, University of Oxford, 2017. https://ora.ox.ac.uk/objects/uuid:66c2543d-5aa3-485d-8e09-1ba7a2b348ff.

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The strength of conventional aluminium alloys decreases rapidly above 150°C, which limits their applications at elevated temperature. Rapid solidified (RS) nanoquasicrystalline Al<sub>93</sub>Fe<sub>3</sub>Cr<sub>2</sub>Ti<sub>2</sub> (at.&percnt;) alloy has previously shown outstanding mechanical performance and microstructural stability at elevated temperatures (&GT;300°C). In order to obtain an outstanding Al-based material with very high strength in a broad range of temperature, it is proposed to produce a nanocomposite consisting of nano-size ceramic particles homogenously distributed in

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16

SHUMBA, MAXWELL Z. "THE RATE ENHANCEMENT OF MULTI-COMPONENT REACTIONS BY HIGH SPEED BALL MILLING." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1201122680.

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17

Aysin, Basak. "Photocatalytic Properties Of Silver Loaded Titanium Dioxide Powders Produced By Mechanical Ball Milling." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614199/index.pdf.

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Silver (Ag) was loaded to three different kinds (P-25, NT-22, and TiO(OH)2) of titanium dioxide (TiO2) powders through adding three different quantities (4.6, 9.2, and 13.8 ml) of silver nitrate (AgNO3) solution by mechanical ball milling process. X-Ray diffraction analysis suggested that Ag was loaded on the TiO2 powders in the form of silver oxide (AgO). SEM, particle size, and BET surface area analyses revealed that TiO2 particles agglomerated after ball milling, resulting in the decrease of specific surface area of the TiO2 powders. Powders P-25, NT-22, and TiO(OH)2 degraded 94 %, 46 %, an

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18

Sneed, Brian D. "Synthesis and characterization of Al-Nanodiamond composite powders by high-energy ball milling." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10698.

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High-energy ball milling was studied for the ex situ strengthening of aluminum (Al) with nanodiamond (ND). Al-ND metal matrix composite powders with 5 wt% and 10 wt% nanodiamond were synthesized by high-energy ball milling of the blended component powders. Stearic acid was used as a process control agent to minimize agglomeration of the powders upon milling. A uniform distribution of the ND reinforcement was successfully obtained after milling the powders for a period of ten hours with a ball-to-powder ratio of 30:1 in a SPEX 8000M ball mill. Composition and properties of the Al-ND composite w

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19

Khovaylo, V., A. Usenko, M. Gorshenkov, and S. Kaloshkin. "Optimization of Ball-Milling Process for Preparation of Si-Ge Nanostructured Thermoelectric Materials." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35302.

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Here we report on technical details of preparation of Si-Ge-based nanostructured thermoelectic materials by a mechnical alloying method. It has been shown that for a milling speed of 350 rpm a single Si-Ge phase is formed after milling time less than 6 h. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35302

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20

Johansson, Anna. "Correlation between process parameters and milling efficiency." Thesis, Uppsala universitet, Oorganisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-179625.

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An experimental ball-milling study was performed to compare the deagglomeration behavior and the evolution of the particle size distribution with increasing milling time of two relatively coarse WC powders used for the production of cemented carbide cutting tools. The WC-powders were found to have distinctly different particle size distributions and particle morphologies prior to milling. Lab-scale WC samples were made using a range of different process parameters and milling times. These were then analysed by means of microscopy, laser light scattering, gas adsorption BET analysis and X-ray p

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21

Schoen, David Taylor. "Hardness variation and cyclic crystalline-amorphous phase transformation in CuZr alloy during ball milling." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32837.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2005.<br>Includes bibliographical references (leaf 41).<br>The hardness and percent crystallinity of Cu33Zr67 powder samples are measured through several cycles of a cyclic phase transformation during ball milling. Each are found to cycle with a period of approximately 320 minutes. Although significant chemical contamination was found in the milled specimens, the results shed some light on mechanical alloying theory and favor interpreting mechanical alloying as a driven alloys process.<br>by David

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22

Shearouse, William C. "Development and mechanistic understanding of ball milling as a sustainable alternative to traditional synthesis." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1353089340.

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23

Buchheim, Cláudia Sofia de Andrade Redondo Murilhas. "Mechanical behaviour of AISiC nano composites produced by Ball Milling and Spark Plasma Sintering." Doctoral thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/11645.

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Doutoramento em Engenharia Mecânica<br>Neste trabalho foram produzidos nanocompósitos de AlSiC misturando alumínio puro com nano partículas de SiC com diâmetro de 45 – 55 nm, usando, de forma sequencial, a técnica da metalurgia do pó e a compactação por “ Spark Plasma Sintering”. O compósito obtido apresentava grãos com 100 nm de diâmetro, encontrandose as partículas de SiC localizadas, principalmente, nas fronteiras de grão. O nanocompósito sob a forma de provetes cilíndricos foi submetido a testes de compressão uniaxial e a testes de nanoindentação para analisar a influência das n

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24

Phasha, Maje Jacob. "Fundamental study of immiscible Ti-Mg system : ball milling experiments and ab initio modelling." Thesis, University of Limpopo, Turfloop Campus, 2013. http://hdl.handle.net/10386/1395.

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Thesis (Ph. D. (Physics)) -- University of Limpopo, 2013.<br>A combination of ball milling experiments and ab initio calculations in this study successfully yielded results that shed light into understanding the fundamental basis for immiscibility and the concept of mechanical alloying in Ti-Mg system. In addition, the conditions for achieving extended solid solubility in elements that usually do not dissolve in each other under thermodynamic equilibrium conditions have been predicted using ultrasoft (US) and norm-conserving (NC) pseudopotentials. Hydostatic pressures required to stabilize ord

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25

Conceição, Flaviana Sales [UNESP]. "Efeito da hidrólise enzimática seguida da moagem em moinho de bolas sobre as características estruturais e físico-químicas do amido de madioquinha-salsa." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/88373.

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Made available in DSpace on 2014-06-11T19:23:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-08-02Bitstream added on 2014-06-13T19:50:08Z : No. of bitstreams: 1 conceicao_fs_me_sjrp.pdf: 781570 bytes, checksum: 15b43ff1876929d7de91439fa3fa6f0b (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Amidos modificados são utilizados pela indústria de alimentos por apresentarem melhor comportamento que amidos nativos. Modificações visando a redução do diâmetro granular para a obtenção de grânulos de tamanho similar aos da molécula de gordura tem sido de grand

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26

Atem-Tambe, Ntoh. "Characterization of Fluoropolymer Powders Made By Supercritical Assisted Mixing With Crystalline Additives." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/1365.

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This research project investigates a new technique to efficiently mix crystalline solid additives with polymers by gentle ball milling with steel balls in the presence of carbon dioxide (C02) at 17 to 30°C and 1300 to 2500 psig. As the ball milling system is agitated, the steel balls transfer mechanical energy to the fluoropolymer and additive thereby converting them to powders. C02 is added into the chamber to expand the polymer and make it amenable to impregnation by the additive. At the end of the mixing process, a free flowing powder is produced consisting of the additive coated with fluor

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27

Düvel, Andre, Martin Wilkening, Reinhard Uecker, and Paul Heitjans. "Ion transport properties of the inverse perovskite BaLiF 3 prepared by high-energy ball milling." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-188242.

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28

Düvel, Andre, Martin Wilkening, Reinhard Uecker, and Paul Heitjans. "Ion transport properties of the inverse perovskite BaLiF 3 prepared by high-energy ball milling." Diffusion fundamentals 12 (2010) 104, 2010. https://ul.qucosa.de/id/qucosa%3A13914.

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29

Denlinger, Kendra L. "Polymers in the High-speed Ball Mill." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin149156005684791.

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30

Tuysuz, Oguzhan. "Prediction of cutting forces in three- and five-axis ball-end milling with tool indentation effect." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/40071.

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In machining, the desired final shape is created in Computer Aided Design (CAD) environment and this information is forwarded to Computer Aided Manufacturing (CAM) phase in which the toolpath is generated and converted to machine specific commands for part manufacturing. The steps in CAD/CAM environments are geometry dependent only, and do not include the physics of the process. However, mathematical modeling of the machining operation gives the flexibility of identifying and resolving process related issues i.e. tool breakage, chatter vibrations and tolerance violations beforehand, which in t

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31

Feng, Hsi-Yung. "The prediction of cutting forces and the resulting machining errors in the ball-end milling process /." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487847761307671.

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32

Lim, Ee Meng. "The prediction of dimensional errors and machining planning for sculptured surface productions using ball-end milling /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487862399449007.

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33

Rodriguez, Ciro A. "Ball-nose end milling-development of criteria for automatic selection of spindle speed and feed rate /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487947501133616.

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34

Hopgood, Heather M. "Substitution Reactions in the High Speed Ball Mill." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479816113315302.

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35

Conceição, Flaviana Sales. "Efeito da hidrólise enzimática seguida da moagem em moinho de bolas sobre as características estruturais e físico-químicas do amido de madioquinha-salsa /." São José do Rio Preto : [s.n.], 2012. http://hdl.handle.net/11449/88373.

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Orientador: Célia Maria Landi Franco<br>Banca: Thais de Souza Rocha<br>Banca: Ana Carolina Conti e Silva<br>Resumo: Amidos modificados são utilizados pela indústria de alimentos por apresentarem melhor comportamento que amidos nativos. Modificações visando a redução do diâmetro granular para a obtenção de grânulos de tamanho similar aos da molécula de gordura tem sido de grande interesse, pois este amido modificado pode ser usado como substituto de gordura em diversas formulações. Para isso, o pré-tratamento enzimático pode ser usado para fragilizar a estrutura granular do amido e facilitar um

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36

Andersen, Joel M. "Understanding the Mechanochemical Energetics of a SPEX 8000M Mixer/mill." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563273418808903.

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37

Chen, Cheng-Yi, and 陳政億. "Analysis Model of Ball End Milling Forces for Inclined Plane Milling." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/fsr3w9.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>94<br>This paper proposes a mechanistic ball end mill cutting force model to estimate the ball end milling forces for inclined plane milling. The developed model that calculates the cutting forces based on a set of cutting force coefficients which depend on the material, the tool, the cutting conditions, the machining directions and the inclined angle of the milling surface. The developed ball end milling force models for inclined plane milling include rise milling ,downhill milling, and horizontal milling. This study uses the present cutting force model and the m

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38

Wang, Wen-Tsai, and 王文財. "Study of the Effects of Milling Parameters on the Ball-End Milling Forces." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/71691953705838164440.

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碩士<br>國立成功大學<br>製造工程研究所<br>88<br>In this thesis, the effect of milling parameters on the ball-end milling forces is investigated by both the theoretical and experimental methods. In experimental aspect, the instantaneous cutting force signals and average cutting forces with different milling parameters in three orthogonal directions were measured by piezoelectric dynamometer. The objective of this thesis is to establish an algebraic model of cutting force system in the ball-end milling process. This objective is accomplished by systematically and analytically formulating the domi

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39

Katubilwa, Francois Mulenga. "Effect of ball size distribution on milling parameters." Thesis, 2010. http://hdl.handle.net/10539/7705.

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This dissertation focuses on the determination of the selection function parameters , a, , and  together with the exponent factors  and  describing the effect of ball size on milling rate for a South African coal. A series of batch grinding tests were carried out using three loads of single size media, i.e. 30.6 mm, 38.8 mm, and 49.2 mm. Then two ball mixtures were successively considered. The equilibrium ball mixture was used to investigate the effect of ball size distribution on the selection function whereas the original equipment manufacturer recommended ball mixture was used t

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40

Chen, Yun-Geng, and 陳運庚. "Electrochemical Properties of LiFePO4 Prepared Via Ball-milling." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/48788537085535752372.

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碩士<br>國立中央大學<br>化學工程與材料工程研究所<br>96<br>LiFePO4 cathode materials with distinct particle sizes were prepared by a planetary ball-milling method. The effect of particle size on the morphology, thermal stability and electrochemical performance of LiFePO4 cathode materials was investigated. The ball-milling method decreased particle size, thereby reducing the length of diffusion and improving the reversibility of the lithium ion intercalation/deintercalation. It is worth noting that the small particle sample prepared using malonic acid as a carbon source achieved a high capacity of 160 mAh g-1 at a

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Lee, Yi-Cheng, and 李易澂. "Modeling of Surface Roughness for Ball-Milling S304." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/98924517709775004302.

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碩士<br>逢甲大學<br>機械與電腦輔助工程學系<br>104<br>This thesis presents an analysis on the effects of machining parameters on surface roughness in ball-end milling stainless steel S304, and thereby develops an experimental model. In the study, a Taguchi L8 table is first utilized to determine the dominant cutting parameters (that are feed, spindle speed, and path interval), and thereby the roughness models in the feed and the transverse directions are developed, respectively. Moreover, two different sets of cutting experiments with different-sized cutters (of which radii are 5 mm and 3 mm, respectively) are

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Lee, Yu-Chen, and 李育臣. "Changes of alkylammonium intercalated montmorillonite by ball-milling." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/41293539705827649813.

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博士<br>國立成功大學<br>資源工程學系碩博士班<br>95<br>An experimental study has been conducted to evaluate the changes of montmorillonite under various conditions, such as different chemical ion exchange, alkylammonium, solvent (water and kerosene), intercalation by mixing and stirred ball-milling. Initial montmorillonite sample was prepared from raw bentonite/clay mined in Taitung, Eastern Taiwan. By the purification processes, it belongs to good grade in general clay resources. For the different alkylammonium conditions, the final organic montmorillonite has been obtained via two different straight-chain orga

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Lu, Chien-Hsing, and 呂建興. "Analysis of Surface Roughness for Ball-End Milling." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/49287011008746817972.

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碩士<br>逢甲大學<br>機械工程學所<br>100<br>Surface roughness is one of the most important performance indices for precision machining. This thesis presents an analysis on the effects of cutting parameters on surface roughness in ball-end milling process. The surface roughness in both feed direction and transverse direction is investigated. The cutting parameters include the feed, the spindle speed, the path interval, and the angle between the surface normal and the tool axis. In the study, 13 and 19 sets of data are conducted to establish empirical models for surface roughness in the feed and the transver

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44

Lee, Shu-Yu, and 李書瑜. "Conic Lens Fabrication by Ball-End Milling Process." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/40872890886075129256.

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碩士<br>逢甲大學<br>機械與電腦輔助工程學系<br>102<br>By ball-end milling processes, mold of conic lens is fabricated on steel surface. With the plastic materials being heating to melt and filling the mold, conic lens is formed as plastic material cooling and solidifying. Quantitative analysis by laser image is investigated. Different incident angles will produce different images. The lens can change the laser spot to line image. It shows the conic lens has function of cylindrical lens. Moreover, it can further split the laser spot to cross line image which is “X” shape. It is obvious that the conic lens ha

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Shuei-De, Chou, and 周水德. "The Analysis of Statistical Model of the Milling Force in Ball-End Milling Operations." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/47745720085238415263.

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碩士<br>大同工學院<br>機械工程研究所<br>86<br>The purpose of this research is to investigate what kind of cutting parameterswould affect the milling forces, when we use the ball-end milling cutter tomachine the free-form surfaces. The statistical experiment method is utilizedto establish the milling forces model of ball-end milling cutter and toinvestigate the effects of cutting parameters on milling forces withindifferent cutting conditions in accordance with the milling force models.The experimental results show that the milling force models are of goodreliability.In this study, the experimental design i

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Luo, Ci-Ren, and 羅啟仁. "Phase transformation of anatase in high-energy ball milling." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/19114306996793136881.

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碩士<br>國立東華大學<br>材料科學與工程學系<br>97<br>The transformation pathway of anatase TiO2 in high-energy planetary ball-milling was studied. Anatase powders were first milled using stainless ball/jar with the additive of ethanol alcohol for 10 mins to 12 hrs, followed by structure characterization by X-ray diffractometer (XRD) and analytical electron microscope (AEM). XRD revealed complicated phase assemblages in all milled powders, including residue anatase, the transitional TiO2-II phase and the final product of rutile. In the powders milled for up to ~7 hrs, the TiO2-II phase contents could reach ~5

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HSU, CHAO-CHIN, and 許朝欽. "Modeling of Surface Roughness for Ball-Milling S45-C." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/59663558526229045936.

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碩士<br>逢甲大學<br>機械與電腦輔助工程學系<br>104<br>This thesis presents an analysis on the effects of machining parameters on surface roughness in ball-end milling medium carbon steel S45-C, and thereby develops an experimental model. In the study, a Taguchi L8 table is first utilized to determine the dominant cutting parameters (that are feed, spindle speed, and path interval), and thereby the roughness models in the feed and the transverse directions are developed, respectively. In addition, the analyses of different parameter ranges and different machine tools are conducted. Based on the proposed surface-

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Chiang, sheng lin, and 蔣昇霖. "Ball milling of silicon and its hydrogen generation performance." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/epcep7.

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碩士<br>國立臺北科技大學<br>資源工程研究所<br>103<br>Hydrogen energy is one of the most important clean energy, and currently many subjects about the manufacture and storage of hydrogen are studied. This research focused on producing hydrogen by silicon in NaOH(aq), and the produced hydrogen was used to generate electricity via a fuel cell. The effects of various factors on hydrogen production rate and yield were explored. The experimental results show that increasing pH and temperature or stirring solution were helpful to increase hydrogen generation rate. Using ultrasonic vibration could significantly reduce

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Hung, Ming-Hung, and 洪銘宏. "Identification of Cutting Force Coefficients in Ball-End Milling Process." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/11223385349004487547.

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碩士<br>國立中正大學<br>機械工程所<br>94<br>The critical part industry in mold, automobile manufacture and aircraft industry are developing vigorously. The geometry of a workpiece is getting complicated and the requirement for the precision of the workpiece surface is upgrading. And the surface precision is directly influenced by cutting forces, so the investigation of the cutting force becomes an important issue. Thus, the aim of this study is focused on the cutting force coefficients identification and the predicted of the cutting forces while the milling test is performed with Aluminum 6061-T6 which is

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劉俊男. "Manufacture of Micro Lenses by Molds using Ball Milling Machining." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/60305327897586042341.

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