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Jankowski, Krzysztof
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article
The process of design and manufacturing of titanium scaffolds in the SLM technology for tissue engineering
Abstract
The paper presents the process of design and 3D printing of titanium scaffolds for the culture of chondrocytes for the purpose of reconstructive surgery. Using CAD techniques, 4 variants of geometric models were developed which were diversified in internal architecture (2 net-like ones with the pore size of 450 μm and 600 μm, and 2 hexagonal ones with the pores in the shape of a hexagon inscribed in a circle with a diameter of 1097 μm and 1386 μm). Each of them was made in the technology of selective laser melting of titanium powder Grade 4 with larger (40 W) and smaller (35 W) laser power, and then subjected to the process of chemical polishing. Dimensional accuracy and surface quality of the produced prototypes of scaffolds were verified macro- and microscopically. The studies allowed to identify optimal process parameters for the manufacturing titanium scaffolds with the best representation of the CAD geometrical models.