Manufatura aditiva de metais via extrusão
Additive manufacturing of metals via extrusion
Gisele Duarte Caboclo Antolin, Mauricio Quelhas Antolin, Bruno Sousa da Cunha, Isabella De Miranda Francisco Pereira, Suzane de Sant’Ana Oliveira
Resumo
O objetivo deste trabalho é a fabricação de peças metálicas de aço inoxidável 316l (SS316l) via manufatura aditiva, através da técnica de extrusão de materiais (MEX) e a avaliação de como a velocidade de impressão afeta as propriedades deste material. Para isso, utilizou-se velocidades de 15 mm/s e 50 mm/s. As peças fabricadas passaram por testes para avaliar a rugosidade, a microdureza e propriedades morfológicas. Os resultados mostraram a viabilidade de produção deste material por esta técnica, a formação de uma microestrutura austenítica, além de evidenciarem que velocidades mais baixas proporcionaram a redução de porosidade nas amostras. Estas porosidades são oriundas do processo de fabricação e podem afetar negativamente as propriedades mecânicas destes materiais, o que demonstra que o procedimento adotado ainda precisa ser otimizado.
Palavras-chave
Abstract
The objective of this work is to manufacture 316l stainless steel (SS316l) metal parts via additive manufacturing, using the material extrusion (MEX) technique, and to evaluate how printing speed affects the properties of this material. For this purpose, speeds of 15 mm/s and 50 mm/s were used. The manufactured parts underwent tests to evaluate roughness, microhardness, and morphological properties. The results showed the feasibility of producing this material using this technique and the formation of an austenitic microstructure, in addition to demonstrating that lower speeds reduced porosity in the samples. This porosity is caused by the manufacturing process and can negatively affect the mechanical properties of these materials, which shows that the procedure adopted still needs to be optimized.
Keywords
Referências
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Submetido em:
04/08/2025
Aceito em:
05/02/2026
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