Electrical Discharge Machining
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Nitretação por descargas elétricas da liga Ti-6Al-4V com adição de pó abrasivo SiC ao fluido dielétrico
RESUMO O processo de nitretação que usa Usinagem por Descargas Elétricas é um método que associa a capacidade de usinar superfícies complexas com a obtenção de tratamento termoquímico de nitretação. A fonte de nitrogênio é proveniente da uréia, que compõe o fluido dielétrico juntamente com água deionizada. A liga de titânio Ti-6Al-4V possui
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Performance and Surface Integrity of Wire Electrical Discharge Machining of Thin Ti6al4v Plate Using Coated and Uncoated Wires
Wire Electrical Discharge Machining (WEDM) is one of the most important production technologies to manufacture very accurate small components and tools on any electrical conductive material. Titanium and its alloys have been widely used in automobile and aerospace industry as well as in medical engineering field. Small components and tools with complex geome
Mat. Res.. Publicado em: 03/06/2019
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3. Metallurgical alterations in the surface of steel cavities machined by EDM
The electrical discharge machining (EDM) is a process characterized by high thermal demands, which tend to cause metallurgical changes in the surface of the workpiece [1-2]. This work aims to conduct a discussion of metallurgical changes in the surface of cavities obtained by the process of EDM in the machining of steel. Several variables were employed, such
Matéria (Rio J.). Publicado em: 2013-12
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4. Aspects on the optimization of die-sinking EDM of tungsten carbide-cobalt
At present, due to their properties, the tungsten carbide-cobalt (WC-Co) composite materials are in huge demand by industry to manufacture special tools, dies/molds and components under erosion. The powder metallurgy is the usual process applied to obtain WC-Co products, but in some cases this process is unable to produce tools of very complex shapes and hig
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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5. Optimizing surface finish in WEDM using the taguchi parameter design method
Wire electrical discharge machining (WEDM) is extensively used in machining of materials when precision is of major factor. Selection of optimum machining parameter combinations for obtaining higher accuracy is a challenging task in WEDM due to the presence of a large number of process variables and complex stochastic process mechanisms. In the present work,
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-06
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6. Eletroerosão por fio em metal duro para ferramentas de estampagem de lâminas de motores elétricos
The process of wire electrical discharge machining is currently used in manufacturing most hard metal (tungsten carbide) dies and punches, used in steel stamping tools for electric motors. The home appliance, industrial electric motor, transformer and hermetic compressor industries, use progressive stamping tools, justifying a better understanding of the man
Publicado em: 2008
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7. The use of vegetal-based dielectric fluids in die-sink EDM processes / Utilização de fluidos dielétricos à base de óleos vegetais na usinagem por descargas elétricas por penetração
Dielectric fluids usually used in electrical discharge machining (EDM) are generally expensive, toxic and demand special storage and disposal procedures. Oil-based dielectric fluids pollute the environment and are subject to the price variations of the international market. Moreover, they are used in large quantities and discarded after short periods of time
Publicado em: 2008
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8. The behavior of graphite and copper electrodes on the finish die-sinking electrical discharge machining (EDM) of AISI P20 tool steel
The machining parameter settings installed at CNC EDM machines are developed under optimum process conditions. Standard workpiece and electrode materials are used traditionally by machine manufacturers to establish the EDM parameter settings. However, this is not the usual situation of the tooling industry, where many different grades of workpiece and tool e
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-12
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9. Performance Evaluation of Hybrid Abrasive Jet Electrical Discharge Machining (AJEDM) / Desenvolvimento e avaliação do processo híbrido de usinagem por descargas elétricas e jato de água abrasivo (AJEDM)
A new technology in non-traditional machining that has been developed is the association of two or more machining process in only one. This worldwide tendency has been observed for more than a decade. For example, the Abrasive Electrical Discharge Grinding (AEDG), which associates the EDM process to grinding, showed good results to Metal Removal Rate (5 time
Publicado em: 2007
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10. 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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11. Usinagem de furos de pequenos diâmetros na liga de titânio ti6a14v em máquina de eletroerosão por penetração
A miniaturização de peças tem se caracterizado como uma contínua demanda do ambiente industrial. Porém, a fabricação de peças com tais dimensões e em materiais de difícil processamento tem exigido o desenvolvimento de tecnologias de fabricação inovadoras e mais precisas. Nesses casos, além dos processos convencionais de usinagem, destacam-se par
Publicado em: 2006
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12. Die-sinking electrical discharge machining of a high-strength copper-based alloy for injection molds
High-strength copper alloys are used as materials for injection molding tools or as cores and inserts in steel molds because of their high thermal conductivity, corrosion and wear resistance. Unfortunately, there is little technological knowledge on the electrical discharge machining (EDM) of copper-beryllium ASTM C17200 alloy. In this work, rough and finish
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-06