Milling Machine
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Analysis of the Dynamic Stability of Ball-End Milling of AISI D6 Hardened Steel
AISI D6 hardened steel is a difficult to cut material that it is employed in mould and die manufacturing where long ball-end mills are frequently required to machine deep cavities. This condition can lead to excessive vibration between tool and workpiece resulting in a poor surface finishing and reduced tool life. This work analyses the dynamic stability of
Mat. Res.. Publicado em: 02/12/2019
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2. Resistência mecânica à adesão em superfícies de madeira de pinus aplainadas e unidas por adesivos PVAc
RESUMO Este trabalho teve como objetivo analisar o desempenho de juntas coladas de madeiras da espécie Pinus elliottii com a utilização de dois adesivos comerciais à base de poliacetato de vinila (PVAc), com diferentes características físicas e composição química, ambos testados nas formas diluída em água e não diluída. As superfícies dos corpo
Matéria (Rio J.). Publicado em: 20/05/2019
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3. Study of friction stir spot welding on AA6063 aluminium alloy used in the ship building industry
ABSTRACT Friction stir spot welding (FSSW) is a novel process of metal joining. In the present work, the authors analysed the possibility of using this process to solve current problems in shipbuilding industry regarding small vessels by replacing the current arc welding techniques with the aforementioned process. Numerical simulation was carried out by the
Matéria (Rio J.). Publicado em: 19/07/2018
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4. Assessment of Process Parameters by Friction Surfacing on the Double Layer Deposition
The friction surfacing process of two deposited layers on two deposition surface conditions, i.e., a smooth interface and a rough interface, was investigated. The control parameter of the deposition process was the rod feed rate with the use of a conventional milling machine. Analyzes of the surface characterization and microstructural characterization along
Mat. Res.. Publicado em: 19/03/2018
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5. Application of Friction Surfacing to the Production of Aluminum Coatings Reinforced with Al2O3 Particles
The aim of this work was to produce deposits of AA6351-T6, reinforced with alumina (Al2O3) particles, over a substrate of AA5052-H32 through friction surfacing. AA6351-T6 consumable rods were drilled with one and two holes, which were filled with Al2O3 particles posteriorly. To perform the deposition, a conventional KONE KFE-3/BR milling machine was used. Th
Mat. Res.. Publicado em: 13/11/2017
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6. The use of single point incremental forming for customized implants of unicondylar knee arthroplasty: a review
Abstract Introduction The implantable devices are having enormous market. These products are basically made by traditional manufacturing process, but for the custom-made implants Incremental Sheet Forming is a paramount alternative. Single Point Incremental Forming (SPIF) is a manufacturing process to form intricate, asymmetrical components. It forms the co
Res. Biomed. Eng.. Publicado em: 30/10/2015
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7. Development of a low-cost CNC milling machine for teaching purposes / Desenvolvimento de uma fresadora CNC de baixo custo para fins didáticos
Para o ensino em cursos relacionados à mecânica são fundamentais aulas teóricas e práticas de programação em máquinas CNC. Um grande incentivo para o aluno é ver sua programação transformada em uma peça que possa ser manuseada. Porém, dado o seu alto investimento, muitas escolas técnicas, de tecnologia e engenharia não disponibilizam máquinas
Publicado em: 2009
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8. The UNS S32520 superduplex stainless steel processing by mechanical alloying / Processamento de aco inoxidavel superduplex uns s32520 por moagem de alta energia
The proposal of the present work is the processing of UNS S32520 commercial duplex stainless steel by high energy milling. First, using hardness by microindentation, optical and scanning electron microgaphies tests, was studied the influence of annealing between 400C and 1000C, with aim in α- phase and σ-phase precipitation. For it, was taken some
Publicado em: 2009
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9. Estudo da usinabilidade dos ferros fundidos cinzentos ligados (CrCuSn e CrCuSnMo) e vermicular classe 350 no fresamento frontal em alta velocidade de corte
Cast iron is used to manufacture engine blocks due to its mechanical and physical properties like thermal conductivity and dumpy capacity, which are fundamental to these applications. Compacted graphite iron (CGI) has higher mechanical strength compared to gray cast iron and can be a great advantage in these type of mechanical parts. The compression rate can
Publicado em: 2009
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10. Precision analysis of an assymetric parallel kinematic robotic structure, with topology 2UPS+PRP, due to the positioning error mapping of the mobil platform in the avaliable workspace, during finishing milling operation, applying mathematical modeling. / Análise da precisão de uma estrutura robótica com cinemática paralela assimétrica de topologia 2UPS+PRP em função do mapeamento dos erros de posicionamento da plataforma móvel no espaço de trabalho disponível, durante operação de fresamento de acabamento, aplicando modelagem matemática.
Esta tese tem por objetivo estudar a precisão de uma nova estrutura robótica para operações de fresamento, em substituição às convencionais maquinas-ferramentas seriais, especialmente as fresadoras e os centros de usinagem CNC. A estrutura proposta está baseada no conceito da cinemática paralela, tendo a análise da precisão sido realizada em funç
Publicado em: 2009
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11. Characterization of compression strength of granite-epoxy composites using design of experiments
This paper presents a processing study of the polymer matrix composite (PMC) developed with an epoxy polymeric matrix reinforced with particulate ceramic granite. This PMC composite has been reported to be used as structural parts of machine tools and Coordinate Measuring Machines due to its superior vibration damping characteristics and reduced processing c
Materials Research. Publicado em: 2008-12
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12. Influência do comportamento estrutural no erro de posicionamento de uma máquina de cinemática paralela. / Influence of the structural behavior in the error of positioning of a parallel kinematic machine.
In spite of the effort spent by the academic and industrial communities (goods, patents and laboratory prototypes), the Parallel Kinematics Machines - PKMs - they still present an inexpressive participation in the market of machine-tools and robots. One of the reasons for this fact is their low indexes of accuracy and precision, in comparison with the machin
Publicado em: 2007