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Relevant bibliographies by topics / Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM) / Dissertations / Theses

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Dissertations / Theses on the topic 'Computer-Aided Design and Computer-Aided Manufacturing (CAD/CAM)'

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Published: 5 June 2025

Last updated: 15 July 2025

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1

Ghatpande, Puja Sudhakar. "Study of fixturing accessibilities in computer-aided fixture design." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-080808-195905/.

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2

Chan, Chi-fung. "Computer-aided design and manufacturing of tactile maps." Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/hkuto/record/B37895722.

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3

Chan, Chi-fung, and 陳智鋒. "Computer-aided design and manufacturing of tactile maps." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B37895722.

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4

Ejiwale, James Akinlolu. "Validation of competencies for computer aided-design and computer aided-manufacturing (CAD/CAM) technicians in Nigerian industries /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948158626701.

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Sturnick, Gerald R. "Integration of computer-aided design techniques into the mechanical product development process /." Online version of thesis, 1989. http://hdl.handle.net/1850/10477.

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6

Plummer, J. C. S. "Using a CAD/CAM system to link the design, drawing and manufacture of turned parts." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304965.

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7

Silva, Alex Sandro de Araújo. "Desenvolvimento integrado CAD/CAM de componentes para turbinas a gás." Instituto Tecnológico de Aeronáutica, 2006. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=307.

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O trabalho aqui apresentado propõe um método para a utilização da cadeia CAD/CAM no fresamento 5-eixos de componentes de turbinas a gás. O método procura integrar as etapas CAD, CAM do processo de fabricação de componentes de turbinas a gás. O método aborda desde a modelagem dos componentes, evitando algumas características impróprias ao fresamento 5-eixos, passando pela simulação das trajetórias e pós-processamento e por fim fabricação dos componentes. A partir desse trabalho algumas informações importantes referentes à cadeia CAD/CAM puderam ser levantadas. De maneira geral, a abordagem da cadeia CAD/CAM para o fresamento 5-eixos deve considerar etapas anteriores ao da programação CAM, como a etapa CAD da cadeia, onde as geometrias são definidas, e posteriores, neste caso, simulação das trajetórias de ferramenta programadas e pós-processamento de código NC. Foram feitas ainda análises relacionadas aos tipos de interpolação que estão disponíveis para o fresamento de geometrias complexas. Essa a análise é também apresentada no trabalho fazendo parte das contribuições que esse trabalho se propõe a dar. Os resultados por serem extremamente práticos se propõem a serem utilizados de imediato na indústria. Eles vão desde restrições a modelagem de geometrias para o fresamento 5-eixos até informações referentes a uso de interpolações complexas no âmbito de fresamento de superfícies complexas. Procurou-se dar informações pertinentes ao fresamento 5-eixos em todas as etapas da cadeia CAD/CAM para esse processo de fabricação.

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8

Cournoyer, Richard John. "The Application of Parametric Software into the Undergraduate Computer-Aided Manufacturing Environment." Digital WPI, 1999. https://digitalcommons.wpi.edu/etd-theses/1078.

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"This thesis presents an in depth study of Pro/Engineer's manufacturing module and its application into the Computer-Aided Manufacturing (CAM) undergraduate education environment. Mechanical Engineering has a lot to gain by incorporating computers into the undergraduate curriculum in comparison to only the traditional classroom surroundings. Today, complex problems can be solved in mere seconds thanks to the power and speed of current computers. Likewise within today's manufacturing sector, numerical controlled (NC) machines are no longer programmed manually. In today's globally competitive manufacturing environment, integrated systems such as CAD/CAM help reduce the ever-shrinking time to market. This thesis contains the background as well as the curriculum material necessary to teach undergraduate students CAM using Pro/Engineer's manufacturing module. The curriculum material starts with the tutorials to teach and reinforce Pro/Engineer basic sketcher skills, which are necessary background information. Followed with in-depth click tutorials to teach the manufacturing module for 2 axes turning, and 3 axes hole drilling and milling. It also includes the necessary lab manuals that reinforce the class lecture material, an electronic manufacturing exam, and the students' evaluations from 2 terms when the CAM course (ME3820) was offered."

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9

Rangan, Ravi M. "Engineering data integration in a discrete part design and manufacturing environment." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/18837.

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10

Alhenaki, Aasem Mutlaq. "Comparison Of Mechanical And Optical Properties Between Three Different CAD/CAM Materials." Thesis, NSUWorks, 2015. https://nsuworks.nova.edu/hpd_cdm_stuetd/67.

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Objective. This study aims to compare several mechanical and optical properties between three different CAD/CAM materials. The properties tested are: flexural strength, modulus of elasticity, hardness, translucency and surface gloss. Background. Typically, CAD/CAM restorations are either ceramic based or resin based. A new resin-ceramic hybrid material has recently been introduced and is thought to combine the advantages of both materials. Methods. Samples were divided into three groups, leucite-reinforced porcelain (IPS Empress CAD), lithium dicilicate (IPS e.max CAD) and resin-ceramic hybrid material (Vita Enamic). Twenty-six bar-shaped specimens were fabricated for each group by cutting standard CAD/CAM blocks. 3-point bending test and Vickers diamond pyramid indenters were used to test the flexural strength and microhardness respectively. Seven veneers were fabricated for each material with a thickness of 0.5 mm using a CAD/CAM milling machine. These veneers were used to test the optical properties via spectrophotometry and gloss-meter analysis. One-way ANOVA, and the Tukey HSD post hoc test were used for statistical analysis between the groups (P

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11

Ding, Lian. "Feature technology and its applications in computer integrated manufacturing." Thesis, University of Bedfordshire, 2003. http://hdl.handle.net/10547/622150.

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Computer aided design and manufacturing (CAD/CAM) has been a focal research area for the manufacturing industry. Genuine CAD/CAM integration is necessary to make products of higher quality with lower cost and shorter lead times. Although CAD and CAM have been extensively used in industry, effective CAD/CAM integration has not been implemented. The major obstacles of CAD/CAM integration are the representation of design and process knowledge and the adaptive ability of computer aided process planning (CAPP). This research is aimed to develop a feature-based CAD/CAM integration methodology. Artificial intelligent techniques such as neural networks, heuristic algorithms, genetic algorithms and fuzzy logics are used to tackle problems. The activities considered include: 1) Component design based on a number of standard feature classes with validity check. A feature classification for machining application is defined adopting ISO 10303-STEP AP224 from a multi-viewpoint of design and manufacture. 2) Search of interacting features and identification of features relationships. A heuristic algorithm has been proposed in order to resolve interacting features. The algorithm analyses the interacting entity between each feature pair, making the process simpler and more efficient. 3) Recognition of new features formed by interacting features. A novel neural network-based technique for feature recognition has been designed, which solves the problems of ambiguity and overlaps. 4) Production of a feature based model for the component. 5) Generation of a suitable process plan covering selection of machining operations, grouping of machining operations and process sequencing. A hybrid feature-based CAPP has been developed using neural network, genetic algorithm and fuzzy evaluating techniques.

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12

Partridge, Julie. "Computer aided design innovation and the integration of design and manufacture." Thesis, University of Southampton, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236349.

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13

Farhan, Uday H. "An integrated computer-aided modular fixture design system for machining semi-circular parts." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2013. https://ro.ecu.edu.au/theses/555.

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Productivity is one of the most important factors in manufacturing processes because of the high level of market competition. In this regard, modular fixtures (MFs) play an important role in practically improving productivity in flexible manufacturing systems (FMSs) due to this technology using highly productive computer numerical control (CNC) machines. MFs consist of devices called jigs and fixtures for accurately holding the workpiece during different machining operations. The design process is complex, and traditional methods of MF design were not sufficiently productive. Computer-aided design (CAD) software has rapidly improved as a result of the development of computer technology, and has provided huge opportunities for modular fixture designers to use its 3D modelling capabilities to develop more automated systems. Computer-aided fixture design (CAFD) systems have become automated by the use of artificial intelligence (AI) technology. This study will investigate the further improvement of automated CAFD systems by using AI tools. In this research, an integrated CAFD is developed by considering four main requirements: · a 3D model of the workpiece, · an expert system, · assembly automation of MFs, · an efficient feature library. The 3D model is an important factor that can provide the appropriate specification of the workpiece; SolidWorks is used the CAD environment for undertaking the 3D modelling in this study. The expert system is applied as a tool to make right decisions about the CAFD planning process, including locating and clamping methods and their related element selection. This helps achieve a feasible fixture design layout. SolidWorks API and Visual Basic programming language are employed for the automating and simulation of the assembly process of MFs. A feature library of modular fixture elements is constructed as a means to simplify the fixture design process.

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Chhaya, Mohit Prashant. "Additive tissue manufacturing for breast reconstruction: Combining CAD/CAM with adipose tissue engineering." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/84762/9/Mohit_Prashant_Chhaya_Thesis.pdf.

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The primary aim of this multidisciplinary project was to develop a new generation of breast implants. Disrupting the currently prevailing paradigm of silicone implants which permanently introduce a foreign body into mastectomy patients, highly porous implants developed as part of this PhD project are biodegradable by the body and augment the growth of natural tissue. Our technology platform leverages computer-assisted-design which allows us to manufacture fully patient-specific implants based on a personalised medicine approach. Multiple animal studies conducted in this project have shown that the polymeric implant slowly degrades within the body harmlessly while the body's own tissue forms concurrently.

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15

Cingi, Guney. "The Influence Of Digital Technologies On The Interaction Of Design And Manufacturing Processes." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12606944/index.pdf.

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This study aims to analyze and evaluate the influence of digital technologies on the inter-action of design and manufacturing processes by representing an outlook of digital tech-nologies through developments in modeling capabilities, manufacturing techniques, mate-rial science, and design strategies. The digital era reached by the technological developments in different fields of sci-ence influenced the field of architecture, just like the others. Thus, a new kind of spa-tial and tectonic quality in architecture is emerging with the lately introduced design tools and materials that are novel to the building industry, while redefining the role of architect in this contemporary medium. The evolutionary process of Frank O. Gehry and his office, being a pioneer in using digital design and manufacturing tools in architecture, is represented with realized examples that point out the formerly discussed developments in the realm of architecture and visualize the tectonics of the digitally designed and produced buildings<br>culminating with the case study of Guggenheim Museum, Bilbao.

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Creamer, Geoffrey David. "A methodology for the design and manufacture of truck bodies using CAD." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328995.

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Yao, Suqin. "Computer-Aided Manufacturing Planning (CAMP)of Mass Customization for Non-rotational Part Production." Link to electronic dissertation, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-1216103-153523/.

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Dissertation (Ph.D.) -- Worcester Polytechnic Institute.<br>Keywords: Computer aided manufacturing planning; Object-oriented systems analysis (OSA); Feature; manufacturing resource capability; setup planning; multi-part fixture Includes bibliographical references (p.146-154).

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18

呂俊強 and Chun-keung Pierre Lui. "Surface irregularity models in CAD applications: surface finish and tolerance allocation." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1988. http://hub.hku.hk/bib/B31239067.

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Lui, Chun-keung Pierre. "Surface irregularity models in CAD applications : surface finish and tolerance allocation /." Hong Kong : University of Hong Kong, 1988. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19952697.

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20

Ozkan, Sevda. "The Way Architectural Model As A New Collaborative Design Environment Talks With Machines." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609381/index.pdf.

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The scope of this study is to illustrate the relationship between computer-aided design (CAD) and computer-aided manufacturing (CAM) systems, and to show how architectural modeling should be positioned in the process of computer-aided design/computer-aided manufacturing (CAD/CAM) systems. The integration of computer aided technologies with architectural design is investigated in terms of design-production/fabrication interaction. The research has been based on a case study in which the CAD/CAM process from the initial design phase to the actual manufacturing of the design object has been explored. A design object is modeled using CAD and the model is manufactured using CAM in order to illustrate the process of CAD/CAM and its potentials related to architectural design and the construction/manufacturing/fabrication process of building. Thus, the study tries to demonstrate what digital tools can provide to the field of architecture, and lists the requirements for architectural modeling to acquire compatibility among the parts of the building process.

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Yang, Qinghao. "Design of an integrated CAD/CAPP system using spatial and graphic decomposition algorithm /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21129757.

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楊淸好 and Qinghao Yang. "Design of an integrated CAD/CAPP system using spatial and graphic decomposition algorithm." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31239602.

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23

Canning, Samuel. "Additive Manufacturing and its Potential Impact/Effect on Craft Practice." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/366959.

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Additive manufacturing (or 3D printing) broadly refers to a group of technologies that create objects using material deposition rather than by reductive means, which describes most means of traditional manufacturing. This study is interested in the use of these additive manufacturing technologies by craftspeople located around the world. Craft practice has a tendency to be associated with manual processes and not with technology. This study questions whether these ideas are relevant to a new generation of craftspeople. The studio component of this study aims to push the boundaries of what is possible to create using additive manufacturing and the related technology of computer-aided design (CAD).These examples, which take the form of a baseball hat and a gown, are deliberately complex in nature in order to push the technology to its very limits. The baseball hat is significant for sheer complexity of a single 3d printed part, while the gown represents the World’s first full length evening dress printed as a single part. These works inform the theoretical exegetical part of this study and form a backdrop to the findings/conclusions of this study.<br>Thesis (PhD Doctorate)<br>Doctor of Philosophy (PhD)<br>Queensland College of Art<br>Arts, Education and Law<br>Full Text

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Johnson, Michael R. "Integration of factory CAD/FLOW ^TMwith QUEST ^TMa software prototype." Ohio : Ohio University, 1996. http://www.ohiolink.edu/etd/view.cgi?ohiou1178307232.

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Ariadi, Yudhi. "Facilitating consumer involvement in design for additive manufacturing/3D printing products." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/21763.

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This research investigates the potential of the general public to actively design their own products and let consumers either manufacture by themselves or send the files to manufacturers to be produced. This approach anticipates the rapid growth of fabrication technology, particularly in Additive Manufacturing (AM)/3D printing. Recent developments in the field of AM/3D printing have led to renewed interest in how to manufacture customised products and in a way that will allow consumers to create bespoke products more easily. These technologies can enhance the understanding of non-technology compliant consumers and bring the manufacturing process closer to them. Consequently, to make AM/3D printing more accessible and easier to employ by the general public, design aspects need to be developed to be as simple to operate in the same manner as AM/3D printing technologies. These technologies will then attract consumers who want to produce Do-It-Yourself (DIY) products. This study suggests a Computer-aided Consumer Design (CaCODE) system as user- friendly design software to simplify the Computer Aided Design (CAD) stages that are required to produce 3D model data required by the AM/3D printing process. This software will be an easy-to-operate design system where consumers interact with parameters of designed forms easily instead of operating conventional CAD. In addition, this research investigates the current capabilities of AM/3D printing technologies in producing consumer products. To uncover the potential of consumer-led design and manufacturing, CaCODE has been developed for consumer evaluation, which is needed to measure the appropriateness of the tool. In addition, a range of consumer product samples as pens has been built using a range of different materials, AM/3D printing technologies and additional post-processing methods. This was undertaken to evaluate consumer acceptance of the AM/3D printed product based on products perceived quality. Forty non-designer participants, 50% male and 50% female, from 5 to 64 years old, 6-7 participants per ten-year age groups in 6 groups, were recruited. The results indicated that 75% of the participants would like to design their own product using consumer design software. The study compared how consumers interacted with the 3D model to manipulate the shape by using two methods: indirect manipulation (sliders) and direct manipulation (drag points). The majority of the participants would prefer to use the direct manipulation because they felt it was easy to use and enabled them to enjoy the design process. The study concluded that the direct manipulation was more acceptable because it enabled users to touch the digital product and manipulate it, making it more intuitive and natural. The research finds that there is a potential for consumers to design a product using user-friendly design tools. Using these findings, a consumer design tool concept was created for future development. The study indicated that 53% of participants would like to use products made by AM/3D printing although they still wanted the surface finish of injection moulded parts. However, the AM/3D printing has advantages that can fulfil the participants preference such as multi-materials from the material jetting method and it is proved that additional post-processing can increase participants acceptance level.

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Cronskär, Marie. "The use of additive manufacturing in the custom design of orthopedic implants." Licentiate thesis, Mittuniversitetet, Institutionen för teknik och hållbar utveckling, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-14390.

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27

Granath, Victor. "3D Printing for Computer Graphics Industry." Thesis, Högskolan i Gävle, Avdelningen för Industriell utveckling, IT och Samhällsbyggnad, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-10439.

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Rapid prototyping is a relativity new technology and is based on layered manufacturing which has similarities to the method an ordinary desktop paper printer works. This research is to obtain a better understanding on how to use computer graphics software, in this particular case Autodesk Maya, to create a model. The goal is to understand how to create a suitable mesh of a 3D model for use with a 3D printer and produce a printed model that is equivalent to the CAD software 3D model. This specific topic has not been scientifically documented which has resulted in an actual 3D model.

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Cheikh, Abdelmadjid. "Functional tolerancing in CAD/CAM." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278691.

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Dal, Bem Vinícius. "SAT based environment for logical capacity evaluation of via configurable block templates." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/142737.

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ASICs estruturados com leiautes regulares representam uma das soluções para a perda de rendimento de fabricação de circuitos integrados em tecnologias nanométricas causada pela distorção de fotolitografia. Um método de projeto de circuitos integrados ainda mais restritivo resulta em ASICs estruturados configuráveis apenas pelas camadas de vias, que são compostos pela repetição do mesmo modelo de bloco em todas as camadas do leiaute, exceto as camadas de vias. A escolha do modelo de bloco tem grande influência nas características do circuito final, criando a demanda por novas ferramentas de CAD que possam avaliar e comparar tais modelos em seus diversos aspectos. Esta tese descreve um ambiente de CAD baseado em SAT, capaz de avaliar o aspecto de capacidade lógica em padrões de blocos configuráveis por vias. O ambiente proposto é genérico, podendo tratar quaisquer padrões de bloco definido pelo usuário, e se comporta de maneira eficiente quando aplicado aos principais padrões já publicados na literatura.<br>Structured ASICs with regular layouts comprise a design-based solution for IC manufacturing yield loss in nanometer technologies caused by photolithography distortions. Via-configurable structured ASICs is even a more restrictive digital IC design method, based on the repetition of a block template comprising all layout layers except the vias one. The choice of such a design strategy impacts greatly the final circuit characteristics, arising the need for specific CAD tools to allow template evaluation and comparison in different aspects. This work presents a SAT-based CAD environment for evaluating the logical capacity aspect of via-configurable block templates. The proposed environment is able to support any user-defined template, and behaves efficiently when applied to block templates presented in related literature.

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Gandhi, Ashit R. "A CAD/CAM interface for computer-aided design of cams." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/41555.

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<p>The purpose of this thesis is to provide a complete package for the design and three dimensional modeling display of cams.</p> <p> The software produced as a part of this work will operate as a module of CADAM to produce cam designs and enter the resulting cam as a CAD model and produce the graphical display of the cam.</p> <p> In addition to the introductory material, this thesis is divided into four sections. The section on the graphics packages used in this thesis includes a brief history and capabilities of each of the packages. The second section details the procedure to be adopted in order to design a cam. The next section details ANICAM, the program that has been developed to incorporate the design and display procedure. The fourth section of this thesis contains recommendations for further work in this area.</p> <p> The theoretical work in this project is a combination of original derivations and applications of the theory in the design literature.</p><br>Master of Science

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Yang, Yihong. "Integrated quality control planning in computer-aided manufacturing planning." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-041607-164054/.

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Thesis (Ph. D.)--Worcester Polytechnic Institute.<br>Keywords: In-process inspection; tolerance assignment; tolerance stack-up analysis; quality control planning. Includes bibliographical references (leaves 136-148).

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Onyeako, Isidore. "Resolution-aware Slicing of CAD Data for 3D Printing." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34303.

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3D printing applications have achieved increased success as an additive manufacturing (AM) process. Micro-structure of mechanical/biological materials present design challenges owing to the resolution of 3D printers and material properties/composition. Biological materials are complex in structure and composition. Efforts have been made by 3D printer manufacturers to provide materials with varying physical, mechanical and chemical properties, to handle simple to complex applications. As 3D printing is finding more medical applications, we expect future uses in areas such as hip replacement - where smoothness of the femoral head is important to reduce friction that can cause a lot of pain to a patient. The issue of print resolution plays a vital role due to staircase effect. In some practical applications where 3D printing is intended to produce replacement parts with joints with movable parts, low resolution printing results in fused joints when the joint clearance is intended to be very small. Various 3D printers are capable of print resolutions of up to 600dpi (dots per inch) as quoted in their datasheets. Although the above quoted level of detail can satisfy the micro-structure needs of a large set of biological/mechanical models under investigation, it is important to include the ability of a 3D slicing application to check that the printer can properly produce the feature with the smallest detail in a model. A way to perform this check would be the physical measurement of printed parts and comparison to expected results. Our work includes a method for using ray casting to detect features in the 3D CAD models whose sizes are below the minimum allowed by the printer resolution. The resolution validation method is tested using a few simple and complex 3D models. Our proposed method serves two purposes: (a) to assist CAD model designers in developing models whose printability is assured. This is achieved by warning or preventing the designer when they are about to perform shape operations that will lead to regions/features with sizes lower than that of the printer resolution; (b) to validate slicing outputs before generation of G-Codes to identify regions/features with sizes lower than the printer resolution.

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Zhu, Cheng-Feng. "CAD/CSPP/CAM integration using feature-based component data model." Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362993.

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Cuaco, Begazo Catherine Margary. "Clinical and laboratory evaluation of CAD/CAM all-ceramic crowns." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2004. http://dare.uva.nl/document/72909.

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Baru, M. K. "Towards the computer-aided design and manufacture of dynamically tuned cams." Thesis, University of Sussex, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381598.

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Kwong, Kin-wa. "Computer-aided parting line and parting surface generation in mould design /." [Hong Kong : University of Hong Kong], 1992. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1341804X.

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Young, Jared M. "Nesting automated design modules in an interconnected framework /." Diss., CLICK HERE for online access, 2005. http://contentdm.lib.byu.edu/ETD/image/etd973.pdf.

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Neerukonda, Narender. "AUTOMATIC SETUP SELECTION AND OPERATION SEQUENCING FOR COMPUTER-AIDED MANUFACTURING SOFTWARE." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1132668178.

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鄺建華 and Kin-wa Kwong. "Computer-aided parting line and parting surface generation in mould design." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1992. http://hub.hku.hk/bib/B31233119.

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Martins, Silvio Roberto Montenegro. "Um sistema CAM para prototipagem rápida por adição de camadas." Universidade Federal da Bahia. Escola Politécnica / Instituto de Matemática, 2011. http://repositorio.ufba.br/ri/handle/ri/18454.

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Submitted by LIVIA FREITAS (livia.freitas@ufba.br) on 2015-12-03T16:31:31Z No. of bitstreams: 1 dissertacao_silvio_martins.pdf: 4966731 bytes, checksum: b6b3da0a100add5c901a3b87012bfefe (MD5)<br>Approved for entry into archive by LIVIA FREITAS (livia.freitas@ufba.br) on 2016-01-11T15:38:16Z (GMT) No. of bitstreams: 1 dissertacao_silvio_martins.pdf: 4966731 bytes, checksum: b6b3da0a100add5c901a3b87012bfefe (MD5)<br>Made available in DSpace on 2016-01-11T15:38:16Z (GMT). No. of bitstreams: 1 dissertacao_silvio_martins.pdf: 4966731 bytes, checksum: b6b3da0a100add5c901a3b87012bfefe (MD5)<br>Com a evolução das técnicas de manufatura, novos produtos são lançados no mercado com uma velocidade cada vez maior. Uma das formas de viabilizar a redução do tempo gasto no ciclo de desenvolvimento de produtos é através da junção de etapas do processo, que vão desde o projeto aos testes e fabricação. A prototipagem rápida está inserida neste contexto, pois permite a construção de objetos físicos a partir de modelos CAD (Computer-aided design). Essa técnica de construção assistida por computador oferece uma alternativa rápida e, no todo, mais barata e efetiva para produção de protótipos funcionais, se comparada aos processos convencionais de criação, demorados e custosos. Entretanto, a maioria das soluções disponíveis no mercado são proprietárias, fato que resulta em tecnologias fechadas e em custos ainda elevados. Este trabalho tem como foco o desenvolvimento de um sistema CAM (Computer-aided manufacturing) capaz de atuar em um sistema de prototipagem rápida de baixo custo, visando tornar esta tecnologia acessível a pequenas e médias empresas (PMEs). O sistema CAM desenvolvido será responsável pelo tratamento dos arquivos tridimensionais obtidos a partir do CAD, apresentando soluções para o fatiamento e planejamento das rotas de deposição de material na máquina de prototipagem rápida, bem como por comandar os eixos da máquina por CNC (Controle Numérico Computadorizado).

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Jain, Vikesh. "A platform independent process data exchange mechanism between Java applications and computer aided manufacturing systems." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1081784819.

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Elmubarak, Mona. "Accuracy and reliability of traditional measurement techniques for tooth widths and arch perimeter compared to CAD/CAM." University of the Western Cape, 2018. http://hdl.handle.net/11394/6521.

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>Magister Scientiae - MSc<br>Background: Plaster models form an integral part of the traditional orthodontic records. They are necessary for diagnosis and treatment planning, case presentations as well as for the evaluation of treatment progress. The accuracy of the measurements taken for space assessment is crucial prior to treatment planning. The introduction of digital models overcomes some problems experienced with plaster models. Digital models have shown to be an acceptable alternative for plaster models. Aim: The aim of the study was to determine the accuracy of traditional measurement techniques when compared to the CAD/ CAM measurements in the assessment of tooth widths and arch perimeter from plaster models. Method: The mesio-distal tooth widths and arch perimeter of thirty archived plaster models were measured using a digital caliper to the nearest 0.01 mm and divider to the nearest 0.1 mm. Corresponding digital models were produced by scanning them with a CAD/CAM (InEos X5) and space analysis completed by measurements using InEos Blue software. Measurements were repeated after 1 week from the initial measurement. The methods were compared using descriptive analysis (mean difference and standard deviation). Results: The operator reliability was high for digital models as well as the plaster models when the measurement tool was the digital caliper (analyzed using the Pearson correlation coefficient in the paired t-test). The mean values of tooth widths measurements of CAD/CAM, digital caliper and divider were 6.82 (±0.04), 6.94 (± 0.04) and 7.11 (± 0.04). There was a significant difference between the measurements made by the CAD/CAM and the divider. Additionally significant differences between the measurements by digital caliper and divider measurements (p < 0.05) were observed. No significant difference was found when comparing CAD/CAM to digital caliper. Positive correlation was displayed between CAD/CAM, digital caliper and the divider, but the measurements completed with the digital caliper had the highest correlation with the CAD/CAM. The difference was not significant between the aforementioned measurement tools (p > 0.05). Arch perimeter measurements showed no statistical significant difference between CAD/CAM, digital caliper and divider (p < 0.05). Conclusion: Archived plaster models stored as records can be converted to digital models as it will have the same accuracy of measurements. The value of doing a space analysis with the CAD/CAM system can be performed with similar reliability on the digital models as a caliper on plaster models.

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Sridaran, S. "Off-line robot vision system programming using a computer aided design system." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/54373.

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Robots with vision capability have been taught to recognize unknown objects by comparing their shape features with those of known objects, which are stored in the vision system as a knowledge base. Traditionally, this knowledge base is created by showing the robot the set of objects that it is likely to come across. This is done with the vision system to be used and must be done in an online mode. An approach to teach the robot in an off-line mode by integrating the robot vision system and an off-line graphic system, has been developed in this research. Instead of showing the objects that the robot is likely to come across, graphic models of the objects were created in an off-line graphic system and a FORTRAN program that processes the models to extract their shape parameters was developed. These shape parameters were passed to the vision system. A program to process an unknown object placed in front of the vision system was developed to extract its shape parameters. A program that compares the parameters of the unknown object with those of the known models was also developed. The vision system was calibrated to measure the pixel dimensions in inches. In the vision system, shape parameters of the objects were found to vary with different orientations. The range of variation for each parameter was established and this was taken into consideration in the parameter comparison program.<br>Master of Science

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Bunce, Gillian Elizabeth. "An investigation of the CAD/CAM possibilities in the printing of textiles : with reference to the application of complex repeat patterns." Thesis, Nottingham Trent University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357277.

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Hwang, Jenq-Fong. "Advanced computer-aided design method on the stress analysis of internal spur gears." Connect to this title online, 1986. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1102453550.

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Danjou, Christophe. "Ingénierie de la chaîne numérique d'industrialisation : proposition d'un modèle d'interopérabilité pour la conception-fabrication intégrées." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2234/document.

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Ce travail s'intéresse à la gestion d'information techniques et connaissances métiers issues de la production pour assurer l'interopérabilité et la continuité de la chaîne numérique. Dans un contexte d'entreprise étendue et de développement des technologies de l’information pour l'usine du futur, l'industrie aéronautique s'oriente vers une intégration flexible et agile des phases de conception et fabrication pour l'obtention de pièces bonnes du premier coup. C'est pour assurer la maîtrise des processus et la capitalisation des savoir-faire métier issus de la fabrication que ces travaux adressent la problématique suivante : comment élaborer un modèle d'interopérabilité de la chaîne numérique d'industrialisation, pour assurer une intégration agile de la conception et de la fabrication ? Pour ce faire, nous définissons deux propositions : OntoSTEP-NC pour permettre l'extraction et la structuration des données issues de la fabrication et Closed-Loop Manufacturing pour permettre l'intégration et la réutilisation des connaissances métiers capitalisées au niveau de l'industrialisation. Les apports de ces propositions se retrouvent dans la définition d'un cadre d'interopérabilité pour l'usine du futur mais également dans les enjeux tels que la définition de bonnes pratiques pour l'entreprise étendue en vue d'une harmonisation des processus de fabrication. Ces travaux ont été validés au travers d'un démonstrateur sur un cas d'étude industriel comportant plusieurs scénarii<br>This work focuses on the knowledge and the data management extracted from the manufacturing to ensure the interoperability in the digital chain. According to the extended enterprise and the factory of the future context, the aeronautics manufacturers tend to a design and manufacturing integrated platform in order to get a right part the first time.This work focus on manufacturing process control and capitalization of know-how from the manufacturing aiming at answering the following issue : How to enable interoperability for the digital production process in order to ensure an integrated and agile design and manufacturing ? This issue is addressed with two proposals : OntoSTEP-NC which focuses on how to model and structure the manufacturing knowledge from the CNC machine and Closed-Loop Manufacturing which focuses on how to re-use and integrate the information feedback from manufacturing to process engineering. Both combined those two proposals address the main issue of this work defining an interoperability framework for the factory of the future and address trends like the definition of guidelines for manufacturing in extended enterprise context. This work has been validated through a demonstrator and an industrial case study with various scenarios

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Cortes-Contreras, Eduardo. "Effect of CAD/CAM processing on esthetic characteristics of porcelain veneers." Thesis, NSUWorks, 2014. https://nsuworks.nova.edu/hpd_cdm_stuetd/2.

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Introduction: Dentistry has changed significantly during the last two decades. Patients are more aware and demanding of the latest technologies available in restorative dentistry. The purpose of this study was to determine any possible changes on the surface roughness, gloss and color change of CAD-CAM milled porcelain veneers following repeated milling times, before and after a glazing process. Methods: A Teflon disk-shaped mold was used as a cast to take a digital impression (BlueCam) in order to fabricate cylindrical-shaped specimens. A total of one hundred (N=100) specimens porcelain veneers using Empress CAD (I10) block, were milled using the CAD/CAM CEREC-SIRONA system. The specimens representing the 1 st , 5th , 10th , 15th , 18th and 20th milling times were evaluated to determine any statistical differences regards surface roughness, gloss and color-change. Subsequently, all milled specimens representing the 1 st , 5th , 10th , 15th , 18th and 20th received a standard surface glaze and surface properties (roughness, gloss and color) were re-measured. Results: There was a statistically significant difference in roughness (Pre-glazing) between test groups at different milling times with a determined p value of 0.027. Regard roughness (Pre and Post-glazing) a statistically significant difference was found between test groups on different milling times, which present a p value of 0.18. A statistically significant difference was found in gloss (Pre and Post glazing) between test groups on different milling times. A significantly higher score after glossing, which present a p = 0.791.There was a significant difference found between samples with the same milling time, (Pre and Post the glazing process). The ΔE range between (2.5021 to 3.0418), which is considered to be detectable only by a skilled person and is clinically acceptable. Also, after perform the SEM evaluation of the burs used after 20 milling times, it showed some lost particles leaving some void on the bur surface. Conclusions: There was a statistically significant change in the surface roughness on porcelain veneers processed by CAD/CAM using the same set of burs prior to the glazing process. There was no statistical difference in porcelain surface roughness between samples of the groups Pre-Glazing. Porcelain gloss was altered significantly between groups Pre and Post-Glazing at all milling times. Porcelain Color-shade, value, and hue were significantly altered after the glazing process. There seem to be a considerable change in the physical and optical characteristics (surface roughness, gloss and color-change) after the glazing process, and this likely has a meaningful impact on the clinical aesthetic qualities of the final restoration.

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Tamburini, Diego Romano. "The analyzable product model representation to support design-analysis integration." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/17106.

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Williams, Gavin L. "Improving fit through the integration of anthropometric data into a computer aided design and manufacture based design process." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/4328.

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For all types of clothing and body worn technologies it is important to consider how they integrate and interact with the complex shapes that form the unique profile of the human body. This interaction determines the fit of these products and it is often difficult to generate a fit that can simultaneously accommodate these complex shapes. Achieving the correct fit is determined by a number of different factors that must be combined appropriately to create the fit associated with a particular product. This is particularly applicable to Personal Protective Equipment (PPE) to ensure it provides protection while maintaining comfort, mobility and good interaction with the surrounding environment. Integrating suitable anthropometric data into the design and manufacture of this type of clothing plays a critical role in achieving a good fit. By using various processes of Computer Aided Design (CAD) and Computer Aided Manufacture (CAM), the detail contained within these data can be quickly and accurately transferred into physical tools. The aim of this study was to demonstrate and validate a method of enhancing the fit of PPE handwear. This has been achieved through an action research strategy using descriptive and practical research methods. The research tools primarily used are case studies, used to demonstrate how manually collected 2D anthropometric data can be used to generate computer models that represent these data in a 3D form. The products of the case studies are tools that have been introduced into the design and manufacture processes of commercial handwear manufacturing environments. The tools have successfully been used to produce gloves using two different manufacturing methods and been assessed to analyse their fit. An improvement in fit for the gloves has been quantified through user trials to determine the level of increased performance afforded to the wearer. The conclusions drawn from the case studies demonstrate that the integration of anthropometric data and CAD/CAM can greatly influence the fit of handwear and improve the iterative processes of its design. However, the data alone does not achieve this as the added integration of tacit knowledge related to glove design is needed to ensure the correct properties are included to the meet the needs of the target population. The methods developed in the case studies have the potential to be applied to other products where fit and interaction with the human body are important design considerations.

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Tessier, Sean Michael. "Ontology-based approach to enable feature interoperability between CAD systems." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41118.

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Data interoperability between computer-aided design (CAD) systems remains a major obstacle in the information integration and exchange in a collaborative engineering environment. The standards for CAD data exchange have remained largely restricted to geometric representations, causing the design intent portrayed through construction history, features, parameters, and constraints to be discarded in the exchange process. In this thesis, an ontology-based framework is proposed to allow for the full exchange of semantic feature data. A hybrid ontology approach is proposed, where a shared base ontology is used to convey the concepts that are common amongst different CAD systems, while local ontologies are used to represent the feature libraries of individual CAD systems as combinations of these shared concepts. A three-branch CAD feature model is constructed to reduce ambiguity in the construction of local ontology feature data. Boundary representation (B-Rep) data corresponding to the output of the feature operation is incorporated into the feature data to enhance data exchange. The Ontology Web Language (OWL) is used to construct a shared base ontology and a small feature library, which allows the use of existing ontology reasoning tools to infer new relationships and information between heterogeneous data. A combination of OWL and SWRL (Semantic Web Rule Language) rules are developed to allow a feature from an arbitrary source system expressed via the shared base ontology to be automatically classified and translated into the target system. These rules relate input parameters and reference types to expected B-Rep objects, allowing classification even when feature definitions vary or when little is known about the source system. In cases when the source system is well known, this approach also permits direct translation rules to be implemented. With such a flexible framework, a neutral feature exchange format could be developed.

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