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Propriedades mecânicas e microestruturais de aços de alta resistência e baixa liga soldados
(2014-05-21)
In the present work we investigated the mechanical and microstructural proprieties of the ZSTE380 and DOGAL800 high strength low alloys steels (HSLA), comparing to the conventional ZAR230 steel, before and after welding. ...
Avaliação de métodos de fabricação de mantas híbridas de fibras curtas de vidro e sisal em compósitos poliméricos
(2014-05-22)
This work is focused at development and evaluation of confection methods of short fibers hybrid mants aiming attend the necessities of automobile industry in the production of small parts with smaller cost and specific ...
Conformação de molas cerâmicas por moldagem por injeção em baixa pressão
(2014-05-15)
In this work the low-pressure injection molding (LPIM) of submicrometer-sized ceramic powders was studied aiming to produce ceramic springs. The work comprised the production of molds and laboratory equipment for injection ...
Caracterização da integridade de superfícies usinadas para produção de moldes e matrizes
(2014-05-14)
This work includes the conventional way of die and mold production. Process such as milling, EDM and sanding are discussed. These three processes of die and mold making were applied to the AISI H13 material, that is wide ...
Análise modal de materiais compósitos
(2014-05-14)
A modal analysis procedure for composites is presented in this work. Procedures employed to aim this objective can be divided into three groups: mass-balance, image analysis and point-counting. The mass-balance methods are ...
Estudo de variáveis de composição e processo para controle da compressibilidade
(2014-05-14)
Brake pads for automotive brake systems represent one of the most complex composite materials since they contain many components with widely varying physical and chemical properties. This multiphase nature is necessary to ...
Desenvolvimento e caracterização de compósitos sanduíche para isolamento térmico
(2014-05-29)
A sandwich panel consists essentially of two face sheets and may even have metal reinforcements and a core formed, usually by a cellular polymer. The faces of this type of panel may be joined by a structural adhesive or ...
Propriedades estruturais e mecânicas do carbeto de vanádio obtido por magnetron sputtering reativo
(2014-05-22)
The use of hard coatings has many applications in the metal-mechanic industry due to the improvement of surface properties such as high hardness and wear and corrosion resistance. One of the most important techniques for ...
Transporte atômico e reação química em nanoestruturas TiN e TiN/Ti em aço nitretado a plasma
(2014-05-28)
The use of cutting tools in progressively more severe conditions in the metal-mechanics industry and the requirement to increase tool life against friction, wear and high temperature corrosion made of surface treatments ...
Avaliação comparativa de desempenho ambiental de duas caixas de carga de semi-reboque bitrem graneleiro: compósito natural versus compósito sintético
(2014-05-19)
This work presents a comparative evaluation of the environmental performance of two materials: a wood panel and a three layers synthetic panel, both used in the production of the load box of semi-trailer for grains ...