RT Journal Article
SR Electronic
A1 Roudnicka, Michaela
A1 Vojtech, Dalibor
A1 Daniel, Matej
T1 Aspects of Selective Laser Melting technology considered in the preparation of trabecular structures for bone tissue substitution
JF Manufacturing Technology Journal
YR 2020
VO 20
IS 4
SP 507
OP 515
DO 10.21062/mft.2020.065
UL https://journalmt.com/artkey/mft-202004-0008.php
AB In this paper, the possibilities of selective laser melting (SLM), one of metal additive manufacturing technologies, in the preparation of trabecular structures are discussed. Despite great advantages in geometrical freedom, there are specific process-inherent aspects that must be considered before the production of such structures. To verify SLM capabilities, we tested different orientations (horizontal and vertical) and thicknesses (0.2-4.0 mm) of single struts. Significant irregularities in strut thickness and deviations from the designed cross-sectional area were observed. Horizontal struts showed greater geometrical deviations. Based on our observations, a trabecular structure was prepared with all struts inclined 45° from the building platform. Due to the 72% porosity, mechanical properties approached those of the bone, which is beneficial for the application of such structure in orthopaedics for bone tissue substitution.