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Investigações sobre usinagem por descarga elétrica
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ISBN10: 6202376953
ISBN13: 9786202376952
Publisher: Edicoes Nosso Conhecimento
Published: Aug 12 2025
Pages: 56
Weight: 0.19
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786202376952
Publisher: Edicoes Nosso Conhecimento
Published: Aug 12 2025
Pages: 56
Weight: 0.19
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
Neste cenário competitivo, a procura por materiais de liga com alta dureza, alta resistência ao impacto e tenacidade está aumentando. Como esses materiais são difÃceis de usinar por métodos convencionais, métodos não convencionais como a usinagem por descarga elétrica (EDM) são geralmente empregados. Neste trabalho, são relatadas investigações paramétricas do processo de usinagem por descarga elétrica para a liga EN-19, considerando múltiplas caracterÃsticas de desempenho utilizando a metodologia de superfÃcie de resposta. As caracterÃsticas de desempenho, nomeadamente a taxa de corte e a rugosidade da superfÃcie, são escolhidas para avaliar os efeitos da usinagem. Os parâmetros do processo selecionados neste estudo são o tempo de pulso, o tempo de desligamento do pulso, a corrente e a tensão. As experiências foram planeadas de acordo com o desenho composto central da metodologia de superfÃcie de resposta. Os resultados experimentais mostram que a taxa de corte aumenta com o aumento da corrente e do tempo de pulso, enquanto a rugosidade da superfÃcie diminui com o aumento da corrente e do tempo de pulso, e a taxa de corte diminui com o aumento do tempo de pulso, enquanto a rugosidade da superfÃcie aumenta com o aumento do tempo de pulso.
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