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Author
Icart Martori, Guillem
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Abstract
It is undeniable that additive manufacturing technologies are experiencing significant growth in recent years thanks to the advantages they present over conventional manufacturing technologies. However, these technologies still face certain challenges to overcome, such as the high surface roughness of the manufactured parts. That is why it has been decided to orient this research to the study of the feasibility of carrying out mechanical post-processing of ball burnishing to parts made of ULTEMTM 9085 material using FDM (Fused Deposition Modeling) technology, with the intention of improving the surface quality of the manufactured parts without compromising their mechanical properties.
With this objective, initially, an extensive bibliographic search has been carried out to deepen the understanding of FDM technology and the effect that its process parameters have on the properties of the manufactured part. Next, a detailed description has been made of the current state of the art in terms of post-processing mechanical processes applied to parts obtained by additive manufacturing and the study of the ball burnishing process has been deepened.
Subsequently, some printing parameters have been set to manufacture the 135 specimens on which this study is based and these have been honed with different parameters to study, not only the effects that the honing process has on the surface finish of the piece. and its mechanical properties, but also the influence of each of the parameters of the honing process. Finally, the surface finish of the treated pieces has been studied in detail, as well as their mechanical properties.
The results obtained show that ball burnishing is a valid process for treating parts made of ULTEMTM 9085 using FDM, achieving a significant improvement in surface quality and without causing any significant damage to mechanical properties.
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