Formation Of Chips
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Influence of graphite particles on surface roughness and chip formation studies in turning metal matrix composites
This study presents an experimental investigation on surface roughness and chip formation in turning of Al 2219/15SiCp and Al 2219/15SiCp-3Gr (hybrid) composites. Experiments were conducted with different cutting conditions using carbide, coated carbide and polycrystalline diamond (PCD) tools. The results reveal that the surface roughness values are less for
Mat. Res.. Publicado em: 25/06/2013
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2. In vitro culture and characterization of alveolar bone osteoblasts isolated from type 2 diabetics
In order to understand the mechanisms of poor osseointegration following dental implants in type 2 diabetics, it is important to study the biological properties of alveolar bone osteoblasts isolated from these patients. We collected alveolar bone chips under aseptic conditions and cultured them in vitro using the tissue explants adherent method. The biologic
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-06
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3. Estudo sobre a redução de Fe3+ por extratos aquosos de cultivos de Ceriporiopsis subvermispora sobre madeira e sua relação com a peroxidação de lipídeos / Studies on Fe3+ reduction by aqueous extracts recovered from cultures of Ceriporiopsis subvermispora on wood and its correlation with lipid peroxidation
The present work is inserted in a broad study aiming to understand the chemical and biochemical mechanisms involved in wood biodegradation by Ceriporiopsis subvermispora. Particularly, the relationship between the Fe3+-reducing activity present in aqueous extracts recovered from Ceriporiopsis subvermispora cultures on wood with the initiation of linoleic aci
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/02/2009
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4. Aplicação de misturas granuladas NK e NS em cultivar de arroz (Oryza sativa) / Application of NK and NS granular mixtures in a rice (Oryza sativa) cultivar
This study aimed to evaluate NK (urea and potassium chloride) and NS (urea and ammonium sulfate) fertilizers as granular mixtures and pastilles, in the rice cultivar IAC 202 in soil samples of different textures, from Fragiudult and Udult soils. Experiments were held in a greenhouse with controlled temperature and humidity, located in the experimental area o
Publicado em: 2009
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5. Experimental inquiry on chip formation in the machining of ABNT 1045 steel and nodular casting iron / Investigação experimental da formação do cavaco na usinagem do aço ABNT 1045 e do ferro fundido nodular
The chip formation is influenced by several cut parameters which also affect the forces, tensions, powers and temperatures generated during the machining process. Although they have been studied for more than 100 years, still today, the involved mechanisms of deformation are not totally know, due to the fact that the chip formation involves high temperatures
Publicado em: 2008
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6. FormaÃÃo de biofilme em aÃo inoxidÃvel por Aeromonas hydrophila e Staphylococcus aureus sob diferentes condiÃÃes de cultivo / Biofilm formation by Aeromonas hydrophila and Staphylococcus aureus on stainless steel AISI 304 in different conditions of cultivation
The microbial biofilm formation in surfaces used in food processing, like stainless steel, has been the focus in several researches in function of the injuries of its occurrence. These communities can act as constant point of contamination and cause other losses, as surface corrosion. In this context, Staphylococcus aureus and Aeromonas hydrophila are consid
Publicado em: 2008
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7. Abrasão, desgaste e atrito sob deslizamento de recobrimentos preparados por aspersão térmica a partir de PET pós-consumo
This work intends to contribute to the development of polymer coatings by combustion thermal spraying of recycled poly(ethylene terephthalate) PET for the improvement of the tribological behavior of carbon steel piping. Coatings with high wear resistance may reduce corrosion, the formation of organic and inorganic deposits, and the friction of the transporte
Publicado em: 2008
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8. Simulação da formação de cavacos usando FEM (Finite Element Method) - temperatura e força / Simulation of formation of chips using FEM (Finite Element Method) - temperature and force
A distribuição de temperatura, as deformações e as forças na zona de corte durante a formação de cavacos são muito importantes, pois têm grande influência nos resultados dos processos de usinagem como um todo. O desgaste das ferramentas, a precisão das operações de usinagem (dilatação térmica) e o acabamento superficial são alguns desses res
Publicado em: 2007
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9. Characterization and anatomical structure alterations of Eucalyptus grandis wood in three refining conditions and effect in technological properties of MDF panels / Caracterização e alterações na estrutura anatômica da madeira do Eucalyptus grandis em três condições de desfibramento e efeito nas propriedades tecnológicas de painéis MDF
Currently is evidenced a great demand of growth in eucalypts MDF panels production in relation with pinus, commonly used in the industry. The present study had the objective to characterize the morphologic components of Eucalyptus grandis wood chips in natura submitted in three different refining conditions (time, pressure and energy), named inte
Publicado em: 2007
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10. Efeito do fluor de um sistema adesivo na resistencia de união e no desafio acido em dentina / Effect of fluoride containing adhesive system on microtensile bond strength and acid challenge on dentin
Despite of the advance in adhesive dentistry, it is not possible to achieve an ideal bonding between composite resin and dental substrate. Currently, a variety of adhesive systems have been used. However, any adhesive system is capable to hamper the marginal leakage, degradation, and secondary caries formation at dentin-resin interfaces in long-term. For tha
Publicado em: 2007
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11. Nutritional aspects of potato plants for seed tuber production in protected condition / Aspectos nutricionais da batateira para produção de tubérculo-semente em ambiente protegido
In spite of its importance and the great number of studies on the potato (Solanum tuberosum L.) crop, in the tropical conditions the existing researches on mineral nutrition of the potato plant grown for seed tuber production, in field and in protected conditions, are scarce. The seed tuber production in protected conditions, as the system used by IAC (São
Publicado em: 2007
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12. Estudo comparativo de materiais de preenchimento osseo sobre o processo de regeneração ossea guiada em defeitos perimplantares : analise histologica e histometrica em femur de coelhos
The purpose of this study was compare the bone healing after different bone grafting materiais in bone tissue regeneration around implants in rabbit s femur. Forty 6 x 2.6mm titanium implants were placed, bilaterally, in the femur of twenty New Zealand rabbits. Circular defects (2.6mm in diameter) were created at mesial of each femur, in order to expose impl
Publicado em: 2001