Rapid Manufacturing
Mostrando 13-24 de 38 artigos, teses e dissertações.
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13. Decision support method to apply Additive Manufacturing Technologies for plastic components in the aircraft industry
Additive Manufacturing Technologies (AMT) are a collection of manufacturing processes driven by CAD data to produce physical models and parts by means of additive techniques. They are based on a layer-by-layer material consolidation process instead of the traditional methods. Due to machine and material developments, such processes may be used to produce fin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/11/2009
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14. Application of rapid prototyping in craniofacial surgeries planning / Aplicação da prototipagem rapida no planejamento de cirurgias craniofaciais
The use of Rapid Prototyping (RP) technology in medicine has been expanding every day. The medical models, or so-called biomodels, used for surgical planning, are made by PR processes, based on computed tomography medical image processing. This technique allows the surgeon to handle anatomical models of the patient, before running the reconstruction surgery.
Publicado em: 2009
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15. Prototipagem rápida de pilhas a combustível de óxido sólido
Tecnologias de Prototipagem Rápida (Rapid Prototyping, RP) permitem a fabricação automática de peças com geometria complicada a partir de dados de Projeto Auxiliado por Computador (Computer Aided Design, CAD). A peça tridimensional é construída por consolidação de pó em camadas (processo "aditivo" ou "generativo"). Por isso, estas técnicas estão
Matéria (Rio de Janeiro). Publicado em: 2009
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16. Extração supercrítica do óleo de linhaça: construção do extrator, estudo de parâmetros de processo, avaliação química e antioxidante do produto
The aim of the present study was to extract vegetable oil from brown linseed (Linum usitatissimum L.), determine fatty acid levels, the antioxidant capacity of the extracted oil and perform a rapid economic assessment of the SFE process in the manufacture of oil. The experiments were conducted in a test bench extractor capable of operating with carbon dioxid
Publicado em: 2009
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17. Rapid manufacturing and rapid tooling of polymer miniaturized parts using Stereolithography
Currently, miniaturization is a major trend in the manufacturing and commercialization of new industrial products. When small-sized objects should be manufactured with dimensions of only a few millimeters or less, many difficulties can appear using traditional processes. An alternative to study these new requirements is through the use of rapid prototyping t
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-03
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18. Applications of rapid prototyping in research projects / Aplicações da prototipagem rapida em projetos de pesquisa
A Prototipagem Rápida (PR), ao longo dos últimos 20 anos, vem provendo inovação, redução de tempo e custo nas mais diversas aplicações, propiciando o surgimento de novos paradigmas, em diferentes setores de atividades. A PR tem como recurso principal a capacidade de construir rapidamente formas físicas complexas, difíceis ou mesmo impossíveis de s
Publicado em: 2008
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19. Thermodynamic simulation as an assistant tool in the development of iron based hardfacing materials
A thermodynamic model was used to investigate the solidification of a hardfacing material in Fe-Cr-C-Nb system designated CNO, and developed for cladding components subjected to severe abrasive wear by welding. Microstructural characterization of the alloy showed that the theoretical simulations carried out to predict the amount and volume fraction of the ph
Materials Research. Publicado em: 2007-09
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20. Rapid manufacturing of polyethylene parts with controlled pore size gradients using selective laser sintering
In this study HDPE specimens were fabricated by selective laser sintering using different particle sizes to obtain controlled variations in the porosity. Electron microscopy, density measurements and mechanical analyses were conducted for the characterization of the specimens. Parts with controlled pore gradients were also manufactured and characterized. The
Materials Research. Publicado em: 2007-06
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21. Estudo comparativo e experimental de materiais aplicados a insertos macho de moldes de injeção dentro do conceito de molde híbrido
The application of plastic components has grown significantly in most of industrial segments during last years. This has attracted considerably attention for the injection mould design and manufacturing processes, which is one of the most expensive phases of injected plastic components development process. Techniques such as Rapid Prototyping/Rapid Tooling h
Publicado em: 2007
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22. Structural optimization of FDM prototypes based on finite element analysis. / Otimização estrutural de protótipos fabricados pela tecnologia FDM utilizando o método dos elementos finitos
Este trabalho tem como objetivo principal a otimização dos protótipos fabricados pelo processo FDM (Fused Deposition Modeling) em procedimento baseado na análise do comportamento estrutural dos protótipos variando as estratégias de preenchimento das camadas. Para atingir tal objetivo, corpos de prova com diferentes orientações de preenchimento foram
Publicado em: 2007
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23. CAD e engenharia reversa como ferramentas de auxílio na fabricação de cartuchos para próteses ortopédicas
The manufacturing of above and below-knee prosthesis starts by taking surfac measurements of the patients residual limb. This demands the making of a cartridg with appropriate fitting and customized to the profile of each patient. The traditiona process in public hospitals in Brazil begins with the completion of a record file (according to law n388, of July
Publicado em: 2007
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24. Integrated monitoring and supervision architectures applied to machining process controlled by open CNC systems / Arquiteturas para monitoramento e supervisão integrados de processos de usinagem em máquinas com controle numérico aberto
Manufacturing enterprises require complete real time and accurate monitoring of machine tool data for integrating the shop floor with other company activities, as engineering, maintenance and business. It is acknowledged that monitoring systems capabilities are unavoidable to improve product quality, to reduce production time, and to the rapid adaptation in
Publicado em: 2007