Título:	Abrasive and non‑conventional post‑processing techniques to improve surface finish of additively manufactured metals : a review
Autor(es):	Oliveira, Déborah de Gomes, Milla Caroline Santos, Aline Gonçalves dos Ribeiro, Kandice Suane Barros Vasques, Iago José Coelho, Reginaldo Teixeira Hung, Nguyen Wayne Silva, Marcio Bacci da
ORCID:	https://orcid.org/0000-0002-7340-5792 https://orcid.org/0000-0003-4599-518X https://orcid.org/0000-0002-0481-3936 https://orcid.org/0000-0001-7005-8783 https://orcid.org/0000-0001-8100-0130 https://orcid.org/0000-0001-8154-5421 https://orcid.org/0000-0003-4660-9033 https://orcid.org/0000-0002-9341-0409
Assunto:	Manufatura aditiva Polimento Superfícies (Física) Metais
Data de publicação:	21-Jul-2022
Editora:	Springer
Referência:	OLIVEIRA, Déborah de et al. Abrasive and non‑conventional post‑processing techniques to improve surface finish of additively manufactured metals: a review. Progress in Additive Manufacturing, 2022. DOI 10.1007/s40964-022-00325-3. Disponível em: https://link.springer.com/article/10.1007/s40964-022-00325-3. Acesso em: 12 set. 2022.
Abstract:	Metal additive manufacturing (MAM) has attracted global industry and academia due to its flexibility and ability to achieve complex geometry. The inherent rough surfaces are of concerns and need to be addressed to meet the strict requirement of critical engineering components. This paper reviews the working principles for common MAM processes and summarizes current post-processing techniques for surface finish improvement. Relevant finishing techniques using abrasives and non-conventional techniques, such as grinding, polishing, laser, peening, buffing, and electrochemical polishing are reviewed, and typical results are documented for different AM processes. Limitation of each process and enhancing techniques using magnetism, ultrasonic, and pulsed current for selected processes are presented. Post processing not only reduces surface roughness, but also contributes to dimensional and form tolerances, and prolongs long-term fatigue and creep life of AM metals. Although post-processing techniques can effectively remove surface defects to achieve submicron surface finish, controlling of surface defects that extend deeply below a surface is still a challenge. Future hybrid system that combines AM and a non-traditional post-process would meet the requirement for MAM.
DOI:	https://doi.org/10.1007/s40964-022-00325-3
Versão da editora:	https://link.springer.com/article/10.1007/s40964-022-00325-3
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