Abstract
Additive manufacturing (also known as 3D printing) process is an emerging technique for the fabrication of biomedical components. Selective laser sintering or melting is one of the widely used additive printing technology for manufacturing of metallic and non-metallic components used in the industry. This review paper presents, a summary of the published research papers on the fabrication of biomedical components using selective laser sintering technique. Therefore, author meticulously attempted to investigate individual biocompatible material-wise review which includes Ti6Al4V, Ti-7.5 Mo alloy, β-Ti35Zr28Nb, PEEK, PA2200, and Polyamide/Hydroxyapatite. In addition, this article also explores the effects of the various laser sintering process parameters such as laser power, scanning speed, density of the material on the mechanical properties, tribological properties, porosity and surface roughness of the fabricated alloy. Moreover, the author also investigated challenges and future prospective of the laser processing of biomedical implants.
Highlights
Additive manufacturing is a manufacturing technique where a 3D product is created by adding material in successive layers
This review article mainly focused on the research work that has been published on additive manufacturing of 3D biomedical
The results of this paper indicate that sintered alloy has a high tensile strength (>700 MPa) and ductility (9%) with low Young’s modulus (70 GPa)
Summary
Additive manufacturing is a manufacturing technique where a 3D product is created by adding material in successive layers (as opposed to removing material from a block). Researchers are involved in the design and fabrication of improved biomedical implants used in knee and hip joint replacement for Osteoarthritis (OA) patients [3,4,5]. Selective laser sintering (SLS) is one of the additive manufacturing processes for fusion of powder materials to build 3D components using laser power energy. This process is widely used for the fabrication of metal matrix composite for making precision components such as biomedical implants for better tribological and corrosion resistance properties of the fabricated components. Many research articles have been published which includes design and fabrication of biomedical components such as 3D printing of bone, prosthetics, intervertebral discs, medical equipment, heart valve, etc.
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