Compacted Graphite Iron
Mostrando 1-12 de 16 artigos, teses e dissertações.
-
1. Electrolytic polishing of compacted graphite iron for revealing subsurface graphite of honed cylinders
ABSTRACT The superficial characteristics of honed surfaces are relevant for the tribological performance of cylinders of internal combustion engines (MCI). Recent studies found a correlation between the occurrence of the phenomenon called folded metal and the presence of graphite of cast irons. However, the honing process tends to overlap the graphite, such
Matéria (Rio J.). Publicado em: 20/05/2019
-
2. Three-dimensional reconstruction of compacted graphite in vermicular cast iron by manual serial sectioning
Microstructural characterization is an important tool to optimize the properties of engineering materials. Metallography is a common technique, but it provides two-dimensional images from (sometimes complex) three-dimensional microstructures. Three-dimensional reconstruction of microstructures provides more precise informa tion on the morphologies of the mat
Rem: Rev. Esc. Minas. Publicado em: 2015-09
-
3. Comparação das propriedades mecânicas e de fadiga entre ferro fundido vermicular e cinzento utilizados em blocos de motor diesel
A crescente busca por novos mercados, redução de custos e atendimento a legislação incentivam estudos e pesquisas no aperfeiçoamento dos materiais, processos e produtos. Uma vez que o bloco do motor é o componente mais importante, e que agrega maior peso e volume no motor, o bloco tem sido alvo de pesquisas na busca de motores mais eficientes. O desenv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
4. Influence of EP additive on tool wear in drilling of compacted graphite iron
Compacted Graphite Iron (CGI) is a good option for the manufacturing of engine blocks, because of the possibilities to decrease the wall thickness and to operate at higher pressures. However, due to its greater tensile strength and hardness compared with grey cast iron, the pearlitic CGI structure makes its machining more difficult. Thus, the aim of this pap
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-06
-
5. Performance of carbide and ceramic tools in the milling of compact graphite iron - CGI
Grey cast iron (GCI) is the most common material used in diesel engine blocks. However, to increase the pressures in the combustion chamber when this kind of alloy is used, it is necessary to increase the block wall thickness, what raises its weight and, consequently, does not fulfill the requirements. Thus, the compacted graphite iron (CGI) appears as an al
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
-
6. Analysis of tool wear, surface roughness and cutting power in the turning process of compact graphite irons with different titanium content
Due to its good mechanical properties, the Compacted (Vermicular) graphite cast iron (CGI) has found a lot of applications in the automobilistic field. One of the applications is the production of high power diesel engine blocks that, due to the higher strength compared to the usual gray cast iron, allows the increase of the pressure inside the cylinder and,
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-09
-
7. Usinabilidade de ligas de ferro fundido para aplicação em cabeçotes de motor através de ensaios de furação / Machinability of cast Iron alloys for application in cylinder heads using drilling tests
Nos últimos anos o ferro fundido vermicular tem conquistado um crescente espaço na indústria automobilística. Destina-se à fabricação de diversas peças automotivas, tais como discos de freio, coletores de escapamento e, principalmente, cabeçotes e blocos para motores. Sua maior resistência mecânica, em relação ao ferro fundido cinzento, possibil
Publicado em: 2010
-
8. Study of Tapping Operation of Compacted Graphite Iron With Cemented Carbide Tool / Estudo do processo de rosqueamento com macho de corte de metal duro em ferro fundido vermicular
The use of compacted graphite iron - CGI is growing in the automobile industry, replacing several components that usually are manufactured in grey cast iron. However, due to its poor machinability when compared to grey cast iron, the production cost sometimes is not competitive. Several research about machinability of CGI has already been developed, mainly i
Publicado em: 2009
-
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
-
10. Influencia do teor de titanio no torneamento do ferro fundido vermicular / Influence of the titanium content in the turning of compacted graphite iron
Due to its good mechanical properties, the compacted (vermicular) graphite iron (CGI) has found a lot of applications in the automobilistic field. One of the applications is the production of high power diesel engine blocks that, due to the higher strength compared to the usual gray cast iron, allows the increase of the pressure inside the cylinder and, cons
Publicado em: 2009
-
11. Uma contribuição a melhoria do processo de fresamento de ferro fundido vermicular - CGI / A contribution to the improvement of the milling process machining compacted graphite iron - CGI
Since the beginning of this century, researches about the development of diesel engines have been intensified, aiming to increase its energy efficiency and to reduce the levels of emission of pollutants. One the way to increase this efficiency is to increase the peaks of pressure of fuel explosion in the combustion chamber. The grey casting iron material is
Publicado em: 2009
-
12. Study of laser textured and coated cutting tools used in face milling of compacted graphite cast iron / Estudo da caracterização de ferramentas de corte texturizadas a laser e revestidas utilizadas no fresamento frontal de ferro fundido vermicular
The controlled alteration of a surface can improve the performance of a mechanical part. The texture is the digital impression of a surface composed of hills and cavities, normally disordered distributed. When this texture is uniform and regularly distributed on a surface, it can modify significantly the functionality of a component. A technique used to unif
Publicado em: 2009