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Dissertations / Theses on the topic 'Machining finishing'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Qu, Xiuzhi. "An integrated approach to finish machining of RP-produced parts /." View online ; access limited to URI, 2003. http://0-wwwlib.umi.com.helin.uri.edu/dissertations/dlnow/3112126.

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2

DHULL, SACHIN. "INVESTIGATION OF HYBRID ELECTROCHEMICAL AND MAGNETIC FIELD ASSISTED ABRASIVE FLOW FINISHING PROCESS." Thesis, DELHI TECHNOLOGICAL UNIVERSITY, 2021. http://dspace.dtu.ac.in:8080/jspui/handle/repository/18780.

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The current scenario of industrialization requires need for higher productivity which is met by advanced material removal process, i.e., abrasive flow machining (AFM) in which the internal surfaces of the workpiece is machined to higher accuracy level with the help of abrasive laden media. In this paper, the conventional AFM setup has been made hybrid using electrolytic and magnetic force arrangement alongwith rotational effect in order to achieve better results in terms of material removal and surface roughness. The newly developed in-house polymer media were utilized in the process and

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3

Venkatachalam, Sivaramakrishnan. "Predictive Modeling for Ductile Machining of Brittle Materials." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19774.

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Brittle materials such as silicon, germanium, glass and ceramics are widely used in semiconductor, optical, micro-electronics and various other fields. Traditionally, grinding, polishing and lapping have been employed to achieve high tolerance in surface texture of silicon wafers in semiconductor applications, lenses for optical instruments etc. The conventional machining processes such as single point turning and milling are not conducive to brittle materials as they produce discontinuous chips owing to brittle failure at the shear plane before any tangible plastic flow occurs. In order to im

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森, 敏彦, Toshihiko MORI, 健治広田 та ін. "磁気研磨機構に関する力学的考察". 日本機械学会, 2002. http://hdl.handle.net/2237/9029.

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5

Gilmore, Rhys. "An Evaluation of Ultrasonic Shot Peening and Abrasive Flow Machining As Surface Finishing Processes for Selective Laser Melted 316L." DigitalCommons@CalPoly, 2018. https://digitalcommons.calpoly.edu/theses/1935.

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Additive Manufacturing, and specifically powder bed fusion processes, have advanced rapidly in recent years. Selective Laser Melting in particular has been adopted in a variety of industries from biomedical to aerospace because of its capability to produce complex components with numerous alloys, including stainless steels, nickel superalloys, and titanium alloys. Post-processing is required to treat or solve metallurgical issues such as porosity, residual stresses, and surface roughness. Because of the geometric complexity of SLM produced parts, the reduction of surface roughness with convent

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Costa, Ronaldo Ferreira da. "Efeitos dos parâmetros de usinagem na formação da camada branca em torneamento duro nos aços-rolamento (DIN 100 Cr6)." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-19072007-163542/.

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Este trabalho discute as alterações micro-estruturais superficiais nos aços usinados por torneamento duro. Uma estrutura não aceita metalurgicamente, chamada de Camada Branca (\"White Layer\" - WL), é freqüentemente encontrada na superfície torneada. A presença desta camada branca depende dos parâmetros do processo de corte, especialmente do desgaste da ferramenta e da velocidade do corte. A formação da camada branca foi investigada no presente trabalho na face plana inferior de um anel de rolamento fabricada com o aço DIN 100Cr6, usinada por torneamento duro no estado temperado e revenido (du

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7

Aguiar, Marcelo Mendes de. "Análise da influência das condições de corte sobre o fresamento em acabamento de aços endurecidos usando altas velocidades." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264165.

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Orientador: Anselmo Eduardo Diniz<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-19T18:33:44Z (GMT). No. of bitstreams: 1 Aguiar_MarceloMendesde_M.pdf: 3795090 bytes, checksum: a76ee2a93e8e7595881459d7a6d71b50 (MD5) Previous issue date: 2012<br>Resumo: Normalmente, a utilização de aços ferramenta endurecidos, juntamente com as formas complexas típicas das peças utilizadas na área de moldes e matrizes, oferecem dificuldade na usinagem por fresamento, principalmente nas operações de acabamento que exijam o

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8

Filípek, Timotej. "Obrábění těžkoobrobitelných materiálů dokončovacími technologiemi." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444264.

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The Master‘s thesis focuses on processing of hard-to-machine materials by the finishing machining methods. The first chapter comprises division and characteristics of finishing technologies in the field of machining processes. The chapter following includes division and characteristics of the hard-to-machine materials. The experimental part – another significant part of the thesis – is focused on grinding of mostly bearing rings made of hard-to-machine materials. The aim of the experimental part is to compare and subsequently assess the use of various kinds of grinding wheels in the grinding p

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9

Chardon, Grégory. "Usinage de moules en matériaux composites, expression des contraintes liées au procédé." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2011. http://tel.archives-ouvertes.fr/tel-00678330.

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L'étude présentée dans ce mémoire se focalise sur l'usinage de moules en matériaux composites, en considérant les problèmes d'état de surface et de gamme d'usinage. Les pièces de structure aéronautiques peuvent être obtenues par les procédés de fabrication de la famille LCM (Liquid Composite Molding). Ce procédé impose une température de fonctionnement élevée qui conduit à une dilatation du moule néfaste à la qualité de la pièce injectée. Pour remédier à ce problème, il est nécessaire de réaliser l'outillage dans un matériau à faible dilatation ou se comportant comme le matériau injecté. Pour

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10

Pavézka, Vladimír. "Analýza dokončovacích způsobů obrábění." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229963.

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This eleborate study is aimed at analysis of complete methods machining. There are characterized particular methods and their effect on the surface´s quality of machined area in this study. Concluding part of the study includes practical demonstration of machining by using cemented carbide-tipped tool and polycrystalline diamond and evaluation of this demonstration.

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11

Belhadj, Mohamed. "Fabrication additive par arc électrique : règles méthodes pour l’élaboration de pièces brutes en vue de leur parachèvement par usinage." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0003.

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La Fabrication Additive Arc-Fil (Wire Arc Additive Manufacturing) est une technologie de fabrication qui utilise du fil métallique comme matière première et un arc électrique comme source d’énergie. Le fil est déposé à une vitesse prédéfinie et fusionné grâce à l'arc électrique, soit sur un substrat, soit sur une couche préexistante. Cette recherche se concentre sur l'utilisation du procédé Cold Metal Transfer (CMT) appliqué à l'acier inoxydable austénitique 316L. Bien que cette technologie soit couramment employée avec succès pour la réparation, le défi actuel réside dans la production en sér

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12

Chuang, Cheng-Ru, and 莊政儒. "The Internal Finishing of Rectangular Tubes by Applying Magnetic Abrasive Machining Method." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/04486525467760655589.

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碩士<br>華梵大學<br>機電工程研究所<br>90<br>A new internal magnetic-abrasive machining process of the 6061-T6 aluminum alloy rectangular tube is developed and investigated. In this study, a new finishing apparatus and auxiliary fixtures are designed and developed to simulate the internal finishing process, the magnetic abrasive particle that the finishing ability abrasive grains (Al2O3) are sintered with a ferromagnetic substance (iron powder) by hot pressed, and, the working parameters and their finishing performances are investigated and reported. The Taguchi-Method is adopted for the experim

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13

Chiu, Chao-Yen, and 邱肇彥. "Study of finishing surface of end milling toolpath for three-axis machining center." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/61763450901464115781.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>99<br>Surface quality of machined products do not only determines the appearance of the products, but also determines the features of products. Novel three-axis milling CNC machines have advantages of high efficiency, high flexibility, high rigidity and high accuracy. Therefore, improving the efficiency and quality of the surface finishing by using three-axis CNC milling machine is a essential issue. This study will use a three-axis CNC milling machine to research the finishing oblique surface and curved surface. Considering the toolpath stepover, stepdown, height o

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14

Wang, Hsiang-An, and 王祥安. "Finishing process of a micro spherical tungsten electrode in electrochemical micro machining and its application." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/36975833332036735289.

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碩士<br>國立中央大學<br>機械工程研究所<br>100<br>With the development of micro machining or measurement technology, the demand for micro-spherical tools or probes such as using for micro-hole machining, coordinate measuring machine (CMM) and chip test has been rapidly increasing. Electrochemical micro machining (ECMM) is one of nonconventional micromachining processes; its material removal is an anode electrochemical dissolution process. The anodic electrochemical dissolution occurs when a voltage is applied between anode and cathode placed in electrolyte. This paper demonstrates a finishing process using EC

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15

SINGH, HIMMAT. "OPTIMIZATION OF PROCESS PARAMETERS USING CNT PARTICLE BASED ABRASIVE MEDIA USED FOR FINISHING OF BRASS WORKPIECE BY ABRASIVE FLOW MACHINING." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14939.

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Abrasive flow machining is a nontraditional finishing process and is used to polish metallic components, internal inaccessible cavities or recesses using a semi liquid paste. It was developed to deburr, polish, and radius surfaces having complex geometries and edges by flowing abrasives with a viscoelastic polymer (called as media) over them. Abrasion occurs wherever the medium passes through the highly restrictive passage. In this work, two way abrasive flow machining is used to optimize the material removal and % improvement in surface roughness on brass material. In this study three paramet

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16

LIN, TING-YI, and 林庭毅. "Analysis and optimization of machining parameters for the bolt of Inconel 718 nickel-based alloys in the finishing grinding process." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/n8bb27.

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碩士<br>修平科技大學<br>精密機械與製造科技碩士班<br>106<br>This research presents the finishing grinding process for the surface processing of Bolt of Inconel 718 Nickel base alloy. Feed rate and grinding depth, types of grinding wheels, grinding fluid used as the processing parameters to observe the processing characteristics, such as machined surface and surface texture, chip. Using the response surface method (RSM) to generate second order mathematical module explained the relationship between the processing parameters and quality characteristics. The results show the higher feed rate, lower grinding depth and

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