Abstract
The research aimed to verify algorithms for evaluating selected parameters of additively produced samples using Industrial Computed Tomography. A 3D model of the lattice structure was created by CAD (Computer-Aided-Design) software PTC Creo Parametric 8 and samples were made using FDM (Fused Deposition Modelling) technology from ABS (Acrylonitrile butadiene styrene) base material and P400SR support material. In this paper, two samples were observed in detail. One of them was subjected to a mechanical test under uniaxial load until the internal structure of the sample broke (tested one), the other was not mechanically loaded (untested one). Samples evaluation focused on their surface software reconstruction from CT (Computed Tomography) data, on the accuracy of production and finally on their porosity. Due to residual support material in the untested sample, the surface was correctly determined only if the CAD model was used as the starting surface. The dimensional analysis shows that the sample is approximately 0.5 mm higher than the CAD model thus production accuracy does not correspond with the accuracy specified by the manufacturer. The volume of material in both samples differs by 0.63 % and thus the repeatability of production is adequate. Porosity analysis shows that the samples have a comparable porosity of 10 % and their percentage difference is 1.2 %.
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