Characterization of Ti6Al4V cellular structures forbiomedical applications produced by selective lasersintering/melting

摘要

Ti6Al4V cellular structures are very promising solutions for biomedical applications like hip prosthesis or dental implants. These load-bearing metallic implants must have Young's modulus close to that of the bone, in order to reduce stress shielding, bone resorption and avoid the implant replacement.Selective laser sintering/melting (SLS/SLM) are additive manufacturing (AM) processes that apply laser energy to powder beds in order to sinter/melt metals. This technology brings an extraordinary freedom when regarding geometry and structure, being suited for the production of Ti6Al4V structures with precise manufacturing details, allowing the design of tailored solutions for Young's modulus. SLS/SLM parts microstructural and mechanical properties are greatly influenced by the processing parameters like laser power, scan spacing and speed, among other.In this work, the influence of the processing parameters on the Young's modulus of several Ti6Al4V cellular structures produced by SLS/SLM is assessed.