Design And Manufacturing Of CoCrMo Prosthesis By 3D Printing

Authors:

Javier Hidalgo (UCLM, Spain),
Juan Alfonso Naranjo (UCLM, Spain),
Juan Jimenez (UCLM, Spain),
Gemma Herranz (UCLM, Spain)

Abstract:

Advents in additive technologies have enabled the production of tailormade prostheses for medical applications. This achievement is limited by the yet scarce available commercial materials. This work explores the use of fused filament fabrication for the production of a bone prosthesis of biocompatible CoCrMo alloy. One of the biggest challenges was the design of a highly loaded feedstock capable be turned into a coiling filament adapted to the FFF requirements. A suitable filament was successfully created and printing conditions optimized. A thorough study was carried out to determine debinding and sintering conditions, with particular focus on the dimensional precision, microstructure analysis and hardness test. Finally, the filament was tested for the processing of an acetabular shell for a hip prosthesis with dense|porous zones.

DOI:

https://doi.org/10.59499/WP225372298