Caracterização de materiais para otimização do processo de deposição de metais com energia direcionada (DED)
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Orientador
Santos, Raphael Galdino dos
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Citações na Scopus
Tipo de documento
Data
2020
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A manufatura aditiva, principalmente de metais e polímeros, possui o potencial
de ampliar as alternativas da indústria no que diz respeito a dinamização e facilitação
da fabricação de peças. Tal fato se deve as características desta manufatura, as quais
conferem a possibilidade de confecção de peças com geometrias complexas, além do
conserto de dispositivos danificados. Frente ao exposto, é proposto o presente estudo
que objetiva avaliar ou refutar estratégias para mensurar a qualidade de peças
fabricadas em aço 316L na manufatura aditiva por energia direcionada (DED). Neste
ínterim, peças foram fabricadas e posteriormente analisadas no que diz respeito a sua
microestrutura e dimensões finais da amostra. No geral, as amostras demonstraram
comportamentos dimensionais semelhantes, embora tenham sido observadas
diferenças relacionadas a quantidade de pó depositado em peças fabricadas em
diferentes períodos. Os resultados também sinalizaram para uma participação
significativa da vazão de pó no que diz respeito a qualidade da peça. Portanto, tal
relação deve ser considerada em estudos posteriores.
The additive manufacturing, mainly the metals and polymer ones, has the potencial to increase the alternatives of the industry in the regards of simplifying and dynamizing the pieces making process. This is possible due the manufacturing characteristics that allow the user to create complex geometric pieces and repair damaged devices. In view of this, this essay has the objective to evaluate or refute the strategies to measure the quality of the pieces made of steel 316L in the additive manufacturing using directed energy. In this study, pieces were made and later their final sample microstructures and dimensions were analyzed. In general, the samples had similar dimensional behavior, although some differences were noticed in the amount of powder presented in some pieces made in different periods of time. The results showed a significant role of the amount of powder in the matter of the pieces quality. Therefore this relation needs to be considered in future research.
The additive manufacturing, mainly the metals and polymer ones, has the potencial to increase the alternatives of the industry in the regards of simplifying and dynamizing the pieces making process. This is possible due the manufacturing characteristics that allow the user to create complex geometric pieces and repair damaged devices. In view of this, this essay has the objective to evaluate or refute the strategies to measure the quality of the pieces made of steel 316L in the additive manufacturing using directed energy. In this study, pieces were made and later their final sample microstructures and dimensions were analyzed. In general, the samples had similar dimensional behavior, although some differences were noticed in the amount of powder presented in some pieces made in different periods of time. The results showed a significant role of the amount of powder in the matter of the pieces quality. Therefore this relation needs to be considered in future research.
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