Machining Processes
Mostrando 25-36 de 46 artigos, teses e dissertações.
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25. Integrated monitoring and supervision architectures applied to machining process controlled by open CNC systems / Arquiteturas para monitoramento e supervisão integrados de processos de usinagem em máquinas com controle numérico aberto
Manufacturing enterprises require complete real time and accurate monitoring of machine tool data for integrating the shop floor with other company activities, as engineering, maintenance and business. It is acknowledged that monitoring systems capabilities are unavoidable to improve product quality, to reduce production time, and to the rapid adaptation in
Publicado em: 2007
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26. Fresamento do aço vhsuper nos estados recozido e temperado com metal duro e cermet
The concept of costs reduction in all the industrial processes has been continually developed aiming to make companies more competitive. In the dies and moulds production chain this concern is not different. Usually, dies and moulds require long machining and polishing times, which represent from 60 to 80% of the production cost. This work aims to investigat
Publicado em: 2007
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27. A usinagem do capital e o desmonte do trabalho : reestruturação produtiva nos anos 90, o caso da Zanini S/A de Sertãozinho-SP / The capital machining and the dismounting of the work : productive reorganization in the 90s, the case of Zanini S/A de Sertãozinho-SP
In the last few decades, the way of capitalist production is passing by an intense transformations in its form of accumulation, reorganizing its productive processes and work relations. In Brazil, this process of change initiates in the middle 80s, but it is intensified only during the decade of the 90s, from the commercial opening and the internationalizati
Publicado em: 2007
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28. Monitoring of operations the rectification using sensors of fusion / Monitoramento de operações de retificação usando fusão de sensores
The present study deals with an experimental analysis of a monitoring system based on a sensor fusion strategy applied to a cylindrical grinding machine. It comprises a fusion of the power and acoustic emission signals and has as main goal to obtain the FAP (Fast Abrasive Power) using the method developed by Valente (2003). Initially, the power and acoustic
Publicado em: 2007
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29. Parametric optimization of wire electrical discharge machining (WEDM) process using taguchi method
Wire electrical discharge machining (WEDM) is a specialized thermal machining process capable of accurately machining parts of hard materials with complex shapes. Parts having sharp edges that pose difficulties to be machined by the main stream machining processes can be easily machined by WEDM process. Technology of the WEDM process is based on the conventi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-12
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30. Punching and broaching combos - a newstamping tool
The crescent searches for the reduction in time production are a factor that stimulates the improvement of the existent manufacturing techniques (Von Steeg 2002 and Waurzyniak 2002). Nowadays, the new researched processes should make possible the fabrication of pieces in a smaller time with a better use of the material resources and equipments (Klein 2002).
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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31. Prospection of opportunities for the optimization of machining processes at small and medium-sized enterprises in São Carlos/SP / Prospecção de oportunidades para a otimização dos processos de usinagem na pequena e média empresa em São Carlos/SP
As operações de usinagem viabilizam a construção de máquinas e equipamentos que proporcionam a manutenção do bem estar da sociedade e a sua evolução. Com o estudo das tecnologias e a adequação dos sistemas de produção ao paradigma desenvolvimento sustentável, é possível discutir as operações de corte com ferramentas de geometria definida e
Publicado em: 2006
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32. OtimizaÃÃo de processos de usinagem em uma cÃlula flexÃvel de manufatura
At the last years the globalization and the free international competition of the markets has been forcing the companies develop its products with larger quality in a smaller time of production and costs more and more low. The companies, in general, have been they adapt to that new reality as a form to guaranteeing its survival. For this they started to use
Publicado em: 2006
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33. Pequenos objetos de madeira de Eucalipto: Possibilidade de aproveitamento de resÃduo. / Small eucalipt wooden objects: possibility of waste utilization.
The mechanical processing of wood is an activity of the forest sector that generates enormous amounts of residues. It can be said that between 40 and 60% of the log volume are constituted by residues during its processing. In most of the cases, such waste are discarded at random or used as source of energy as a result of their combustion. This work had as ob
Publicado em: 2006
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34. Avaliação da replicagem de moldes torneados com ferramenta de diamante usando prensagem a quente em polimetilmetacrilato (PMMA) / Evaluation of the replication of molds generated from single point diamond turning using hot embossing in polymethylmethacrylate (PMMA)
In this work, different types of microstructures were generated by single point diamond turning and microindentation for will replicated through the hot embossing. Tests were carried to evaluate the generation these microstructures by two distinct methods: micro-deformation and micro-machining, planned to observe the replication of the mark generated by the
Publicado em: 2006
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35. Contribuições para melhoria do desempenho e viabilidade de fabricação de scanners indutivos / Contributions to improve the performance, and the manufacture viability of inductive scanners
Scanners are devices that deftects a light beam and converts a spot light in a well controlled amplitude and frequency scan line. Several applications uses the generated pattem to code or decode data, common examples ar,e barcode readers, and laser printers. A light beam can be deftected by different means. In this work, the scanner deftects the light by ref
Publicado em: 2006
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36. Study on the behavior of the minimum quantity lubricant - MQL technique under different lubricating and cooling conditions when grinding ABNT 4340 steel
Energy consumption, air pollution and industrial waste have received special attention from public authorities in recent years. The environment has become one of the most important subjects in the context of modern life, for its deterioration impacts the quality of life populations. Driven by pressure from environmental agencies, politicians have drawn up ev
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2005-06