Cutting Simulation
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Simulation of the mechanical process of gypsum cutting with picks
Abstract Several research works have been done to assess the effect of the cutting depth on the cutting forces when using picks. In this case, the cutting tests need im-portant equipment to cut rocks, to register the cutting force and to determine the cutting force value. The purpose of this research work is to simulate the laboratory rock cutting tests to d
REM, Int. Eng. J.. Publicado em: 2018-07
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2. Investigation of High-Speed Cryogenic Machining Based on Finite Element Approach
Abstract The simulation of cryogenic machining process because of using a three-dimensional model and high process duration time in the finite element method, have been studied rarely. In this study, to overcome this limitation, a 2.5D finite element model using the commercial finite element software ABAQUS has been developed for the cryogenic machining proc
Lat. Am. j. solids struct.. Publicado em: 2017-03
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3. LARGE EDDY SIMULATION COMBINED WITH EQUIVALENT DIAMETER FOR TURBULENT JET MODELLING AND GAS DISPERSION
Abstract CFD modelling combines transport phenomena and numerical approaches to solve physical problems. Although numerical modelling of flow scenarios is the cutting edge of flow modelling, there seems to be room for improvement. This paper proposes an approach for jet modelling in a low Mach number computational code. The methodology is based on the equiva
Braz. J. Chem. Eng.. Publicado em: 2016-09
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4. The Effects of Scalloping Width and Position on Jet Mixing of Lobed Nozzles
ABSTRACT: A series of geometric models of lobed nozzles with a central plug was created by different scalloping positions and widths. The shapes of lower and upper edges, cutting depth were kept unchanged. In this study, by the use of numerical simulation, the effects of scalloped width and position on the performance of jet mixing in the pumping condition w
J. Aerosp. Technol. Manag.. Publicado em: 2015-12
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5. Modelagem e simulação de processos (corte, carregamento e transporte) na produção agrícola de açúcar e álcool / Modeling and simulation of processes (cutting, loading and transportation) in agricultural production of sugar and alcohol
Este trabalho tem como objetivo simular e analisar as etapas de corte, carregamento e transporte da cana-de-açúcar para o planejamento da produção na indústria sucroalcooleira. As etapas agrícolas são responsáveis por cerca de 30% dos custos totais da produção. Nas simulações aplicou-se o módulo de roteirização em arco do software TransCAD. Es
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/04/2012
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6. Influence of a diagonal pre-drilled hole on hole quality during the reaming process using multiblade tools
The requirements of production engineering for a precision hole are to ensure the required quality as well as minimal production costs. The interactions between machine, tool and the pre-drilled hole result in uncertainties during the final reaming process. For this purpose the reaming process itself and the appearance of process faults were focused in a lar
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
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7. Otimização do corte de pontas de um aço livre de intersticiais laminado a quente usando tesoura do tipo guilhotina / Optimization the cut edge of a hot rolled interstitial free steel using a guillotine type shearing machine
The automotive industry\ s demand for high formability steels for use in exposed body panels motivated the development of several interstitial free (IF) steels specifications at Companhia Siderurgica Nacional. The \"IF-Ti\" steel specification belongs to the special deep drawing steels group (CSN EEP-IF), with yield strength <380 MPa, and among all grades of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
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8. Modelos de simulação para análise e apoio à decisão nos processos de corte mecanizado, carregamento e transporte no agronegócio da cana-de-açúcar / Simulation models for analysis and decision support in the processes of cutting, loading and transport in the agribusiness of cane sugar
In the current days sugarcane occupies an area of approximately 10,5 % of all the Brazilian agricultural land, with an estimated production for the 2008/2009 crop of 528 million t. In the sugarcane production process, the harvest highlights due its high costs, representing approximately 35% of the sugarcane production costs, besides the addition of operation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/07/2009
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9. Machined part sales price build-up based on the contribution margin concept
One of the main competitive moves observed in the last two decades was the change in product pricing, evolving from a cost plus margin paradigm to a market-driven one. In the present days, the customer defines how much he or she is willing to pay for a given product or service. As a result, traditional cost accounting procedures and their related pricing for
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-09
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10. Estudo teórico-experimental das forças de corte no processo de torneamento / Theoretical and experimental study of cutting forces in turning
O estudo das forças de corte em usinagem tem várias aplicações, tais como definir a melhor geometria da ferramenta e sua interação com a peça. Este trabalho apresenta os resultados de simulações do processo de torneamento utilizando o método dos elementos finitos no corte ortogonal em aço AISI 4340 usando insertos de metal duro, comparando-os com
Publicado em: 2009
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11. Modelos de simulação para análise e apoio à decisão nos processos de corte mecanizado, carregamento e transporte no agronegócio da cana-de-açúcar / Simulation models for analysis and decision support in the processes of cutting, loading and transport in the agribusiness of cane sugar
In the current days sugarcane occupies an area of approximately 10,5 % of all the Brazilian agricultural land, with an estimated production for the 2008/2009 crop of 528 million t. In the sugarcane production process, the harvest highlights due its high costs, representing approximately 35% of the sugarcane production costs, besides the addition of operation
Publicado em: 2009
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12. Contribution of the LU factorization update in the Simplex method / Contribuição da atualização da decomposição LU no metodo Simplex
Finding efficient solution of linear systems is fundamental in the linear programming problems and the first method to obtain success for this class of problems was the Simplex method. With the objective to develop efficient alternatives to its implementation, techniques of the simplex basis LU factorization update are developed in this thesis to improve the
Publicado em: 2009