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Investigação sobre o polimento de bolas
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ISBN10: 6202491647
ISBN13: 9786202491648
Publisher: Edicoes Nosso Conhecimento
Published: Jun 28 2025
Pages: 60
Weight: 0.21
Height: 0.14 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786202491648
Publisher: Edicoes Nosso Conhecimento
Published: Jun 28 2025
Pages: 60
Weight: 0.21
Height: 0.14 Width: 6.00 Depth: 9.00
Language: Portuguese
Um acabamento superficial deficiente numa superfÃcie maquinada resulta em desgaste excessivo das superfÃcies de atrito. Além disso, muitas propriedades funcionais importantes, tais como resistência ao desgaste, resistência à fadiga e resistência à corrosão, dependem do acabamento superficial. Por conseguinte, são necessários processos de acabamento fino na maquinagem das superfÃcies de muitos componentes crÃticos para obter um acabamento superficial de alta qualidade. Estes incluem afiação, lapidação, retificação, superacabamento e polimento. O polimento com esferas é um processo de acabamento superficial sem aparas, a frio, no qual os picos das superfÃcies metálicas são deslocados para preencher os vales por deformação plástica. Neste trabalho, foi concebida e realizada uma experiência envolvendo quatro parâmetros de processo de entrada (velocidade de rotação da peça de trabalho, avanço longitudinal da ferramenta, força de polimento vertical e número de passagens da ferramenta), cada um com cinco nÃveis diferentes, utilizando uma abordagem de conceção de experiências bem conhecida - Metodologia de SuperfÃcie de Resposta. O acabamento superficial e a dureza superficial foram considerados parâmetros de resposta. Por ser um metal não ferroso, o alumÃnio puro foi escolhido como material de trabalho. Durante as investigações, o processo de polimento com esferas produziu um acabamento superficial e uma dureza superficial significativamente elevados.
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