Additive Manufacturing for Biomedical Applications

This chapter examines the evolving role of Additive Manufacturing (AM) in biomedical applications, emphasizing its principles, techniques, and prospective developments. Additive manufacturing has revolutionized biomedical engineering by facilitating the production of personalized implants, scaffolds, and medical devices characterized by unparalleled structural intricacy and functional cohesion. The chapter examines the advanced computational design methodologies, including topology optimization, generative design, and finite element simulation, in conjunction with biocompatible materials, surmount the geometric and customization constraints of traditional manufacturing. Critical AM processes, such as Selective Laser Melting (SLM), Electron Beam Melting (EBM), Wire Arc Additive Manufacturing (WAAM), and bioprinting, are examined for their capacity to produce complex structures with regulated porosity, varied compositions, and multi-material arrangements that improve mechanical properties, facilitate osseointegration, and aid in tissue regeneration. The review emphasizes emerging innovations like 4D printing and stimuli-responsive biomaterials, which facilitate dynamic and adaptive functionalities. The potential of hybrid approaches that combine the structural robustness of WAAM with the biological precision of bioprinting is explored for the advancement of hard and soft tissue engineering. This chapter emphasizes AM as a fundamental technology for future biomedical innovations, providing avenues for personalized and regenerative healthcare that enhance patient outcomes and surgical success rates.