Analysis of the anisotropy in parts for medical applications created by the superposition of layers of PLA and epoxy resin with the FFF & Robocasting techniques

Abstract

[EN]The purpose of this study is to analyze the anisotropy of a new additive manufacturing technique that will use thermoplastic material and epoxy resin to create the creation of usable parts for the medical industry. In the article "Novel Technique Based on Fused Filament Fabrication (FFF) and Robocasting to Create Composite Medical Parts", the manufacturing technique was analyzed and it was concluded that the combination of a thermoplastic and an epoxy resin opens a new path in the manufacture of additives since it allows to create pieces with new qualities without being conditioned by the design. In this article we have analyzed specimens that have been printed vertically to obtain a study of the anisotropy and the incidence in the thermoplastic of the inclusion of the epoxy resin with respect to the adhesion between layers. The new system of additive manufacturing has not allowed improving the adhesion between layers of natural PLA but has allowed raising future investigations observing the fracture of the test tubes.