Fracture surface analysis of ABS samples printed by the FDM method
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2019
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BRAZIL MRS MEETING, 18th
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Resumo
FDM (Fused Deposition Modeling) is one of the most used technique in additive
manufacturing (AM). It can be summarized as printing small components through
a heated thermoplastic filament, which is deposited layer by layer through a 3D
printer. The print head can be programmed to perform the job in different
directions (X, Y and Z) even with predetermined slopes.
In this work, flat tensile specimens were prepared in different directions using an
ABS (Acrylonitrile-Butadiene-Styrene) filament with a processing temperature
between 210-225 ° C. After tensile tests, the fracture surfaces were analyzed to
get a better understanding of the deformation and fracture processes. The crosssection
view of specimen´s morphology was examined with a scanning electron
microscope at a very low accelerating voltage (1 kV). The specimens were coated
with gold using a sputtering system.
The specimens that showed the smaller ultimate strength (named V-specimen)
presented numerous large cavities in its microstructure suggesting that these
voids may have a major contribution to the mechanical performance of the
material.The fracture surface also shows a possible pull-out between layers
indicating a weak point in the microstructure of the built sample that’s requires
further investigation.
Como referenciar
LOBO, RAQUEL de M.; MORCELLI, APARECIDO E.; BREDA, FRANCISCO J.; CASTAGNET, MARIANO; ANDRADE, ARNALDO H.P. de. Fracture surface analysis of ABS samples printed by the FDM method. In: BRAZIL MRS MEETING, 18th, September 22-26, 2019, Balneário Camburiú, SC. Abstract... São Carlos, SP: Aptor Software, 2019. p. 2567-2567. Disponível em: http://repositorio.ipen.br/handle/123456789/31039. Acesso em: 24 Mar 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.