A method to evaluate the processability of metallic alloys by laser-based powder bed fusion

Autor(es)

Fonseca, Eduardo B. ; Gabriel, Andre H. G. ; Rocha, Thiago M. ; Valim, Diego B. ; Lopes, Eder S. N.

• Tipo de documento: Artigo Científico
• Fonte: MATERIALS TODAY COMMUNICATIONS; v. 44, p. 6-pg., 2025-03-01.

Resumo

Processing metallic alloys by laser-based powder bed fusion, one of many additive manufacturing technologies, depends on several factors related to the material's physical properties and metallurgical behavior. Although specific processing conditions vary with machine characteristics, the overall processability of alloys can be comparatively assessed by analyzing the phenomena involved during melting and solidification. We explored the processability of different grades of steel, Ti-, Al-, and Cu-alloys and propose a methodology to determine the processability of other alloys. An energy parameter is proposed based on the absorbance of the laser wavelength, besides thermal and physical properties of the alloy, and some processing parameters. (AU)

• Processo FAPESP: 19/06276-4 - Estudo de processamento e pós-processamento do aço AISI H13 por fusão em leito de pó: caracterização micro/nanoestrutural e mecânica
• Beneficiário: Eduardo Bertoni da Fonseca
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 18/06045-0 - Manufatura avançada: exploração de métodos para controle e validação do processo de manufatura aditiva por fusão em leito de pó
• Beneficiário: Éder Sócrates Najar Lopes
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores