Polyamide 12 (PA 22000) is a well-known material and one of the most biocompatible materials tested and used to manufacture customized medical implants by selective laser sintering technology. To optimize the implants, several research activities were considered, starting with the design and manufacture of test samples made of PA 2200 by selective laser sintering (SLS) technology, with different processing parameters and part orientations. The obtained samples were subjected to compression tests and later to SEM analyses of the fractured zones, in which we determined the microstructural properties of the analyzed samples. Finally, an evaluation of the surface roughness of the material and the possibility of improving the surface roughness of the realized parts using finite element analysis to determine the optimum contact pressure between the component made of PA 2200 by SLS and the component made of TiAl6V4 by SLM was performed.

Department of Electrical Engineering Automation and Informatics Faculty of Engineering Slovak University of Agriculture in Nitra Tr A Hlinku 2 949 76 Nitra Slovakia

Department of Environmental Engineering and Sustainable Development Entrepreneurship Faculty of Materials and Environmental Engineering Technical University of Cluj Napoca B dul Muncii 103 105 400641 Cluj Napoca Romania

Department of Manufacturing Engineering Faculty of Industrial Engineering Robotics Management and Production Management Technical University of Cluj Napoca B dul Muncii 103 105 400641 Cluj Napoca Romania

Department of Mechanical Engineering Faculty of Technology Institute of Technology and Business in České Budějovice Okružní 10 370 01 České Budějovice Czech Republic

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Materials (Basel). 2021 Dec 24;15(1):132. doi: 10.3390/ma15010132. PubMed

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Effect of Additives and Print Orientation on the Properties of Laser Sintering-Printed Polyamide 12 Components

Correction: Răzvan et al. Selective Laser Sintering of PA 2200 for Hip Implant Applications: Finite Element Analysis, Process Optimization, Morphological and Mechanical Characterization. Materials2021, 14, 4240