![]() ![]() Additionally, the porosity was examined with micro-CT scans. Tensile tests were performed for different strut diameters and the fracture surfaces were analyzed using a laser microscope and a scanning electron microscope. Therefore, this study investigates the fracture behavior and mechanical properties of thin additive manufactured struts using the titanium alloy Ti-6Al-4V and specific machine parameters for support structures. Currently the importance of support structure for a successful build process is often underestimated and some effects are not yet well understood. In the laser powder bed fusion processes for metal additive manufacturing, a support structure is needed to fix the part to the base plate and to support overhanging regions. ![]() Finally, we conclude the review with the emerging directions and perspectives for further development of AM in the medical industry. We assess the proposed applications of additively manufactured implants for regeneration of different tissue types and the efforts made towards their clinical translation. Subsequently, the design constraints and physical characteristics of the additively manufactured constructs are reviewed in terms of input parameters such as design features and AM processing parameters. Here, the new possibilities brought by the functionally gradient porous structures to meet the conflicting scaffold design requirements are thoroughly discussed. Then, we elaborate on the tools and approaches undertaken for the design of porous scaffold with engineered internal architecture including, topology optimization techniques, as well as unit cell patterns based on lattice networks, and triply periodic minimal surface. After introducing metal AM processes, biocompatible metals adapted for integration with AM machines are presented. In this review, the latest advances in different aspects of the design and manufacturing of additively manufactured metallic biomaterials are highlighted. In addition, internal pore architectures integrated within additively manufactured scaffolds, have provided an opportunity to further develop and engineer functional implants for better tissue integration, and long-term durability. ![]() Metal additive manufacturing (AM) has led to an evolution in the design and fabrication of hard tissue substitutes, enabling personalized implants to address each patient's specific needs. The experimental results show that AFB has a beneficial effect both on the finishing and fatigue behavior of additively manufactured components a smoother surface was obtained, and the crack initiation during fatigue tests was retarded. The advantages in surface properties were related to an increase in fatigue life. Field emission gun-scanning electron microscopy and contact gauge profilometry showed an improvement in sample finishing due to the AFB process. In this paper, the adoption of abrasive fluidized bed (AFB) processing as a finishing solution is explored, and the effect of the main process parameters, namely the abrasive type, treatment time, and rotational speed, on morphological features and fatigue life is investigated. However, the surface morphology typical of additive manufactured parts could be detrimental to the fatigue life, and finishing operations become necessary. The possibility of processing cobalt-chrome parts by additive manufacturing opens the way to the production of complex net-shaped parts able to withstand high loads and at the same time resist the corrosive environment or thermal loads.
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