Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
Inlfuence of SPIF parameters on dry incremental forming of titanium sheets for biomedical applications and surface comparison against commercial hip implant
Submission Author:
Felipe dos Anjos Rodrigues Campos , MG
Co-Authors:
Felipe dos Anjos Rodrigues Campos, Leonardo Rosa Ribeiro da Silva , Pedro Henrique Pires França, Weber Silva
Presenter: Felipe dos Anjos Rodrigues Campos
doi://10.26678/ABCM.COBEM2021.COB2021-0473
Abstract
Single Point Incremental Forming (SPIF) stands out as a non-conventional technology for producing stamped final parts from thin metal sheets without the use of expensive tooling. This is of special interest for production of custom biomedical parts, as long as the process parameters are correctly adjusted to guarantee adequate surface characteristics. In this work, SPIF was carried on titanium sheets under 7 different conditions. The roughness was assessed by different parameters, while SEM images and chemical analysis by EDS were used to compare the surface aspect to that of a commercial hip implant. While the Ra was still larger than recommended in the literature, it was lower than that of the plasma sprayed femoral component of the validated hip implant. This product and the cones produced in lubricated SPIF tests predominantly present regularly spaced peaks, while the dry tests yielded surfaces with slightly more valleys. Despite the uneven distribution of titanium oxide fragments on the surface and lower amount compared to the plasma sprayed femoral component, these structures are still present, which guarantees the biocompatibility of the formed parts and indicate the ability of the SPIF process to produce ready to use biomedical parts.
Keywords
single point incremental sheet forming, titanium, Roughness, morphological space, biocompatibility
