Abstract:
Porous Lattice Structure (PLS) scaffolds have shown potential applications in the biomedical
domain. These implants’ structural designs can attain compatibility mechanobiologically, thereby
avoiding challenges related to the stress shielding effect. Different unit cell structures have been
explored with limited work on the fabrication and characterization of titanium-based PLS with cubic
unit cell structures. Hence, in the present paper, Ti6Al4V (Ti64) cubic PLS scaffolds were analysed
by finite element (FE) analysis and fabricated using selective laser melting (SLM) technique. PLS
of the rectangular shape of width 10 mm and height 15 mm (ISO: 13314) with an average pore size
of 600–1000 µm and structure porosity percentage of 40–70 were obtained. It has been found that
the maximum ultimate compressive strength was found to be 119 MPa of PLS with a pore size of
600 µm and an overall relative density (RD) of 57%. Additionally, the structure’s failure begins from
the micro-porosity formed during the fabrication process due to the improper melting along a plane
inclined at 45 degree.
