Fused filament fabrication is a widely used version of manufacturing from the class of additive technologies. A filament made of polylactic acid is often used as the material. In order to improve the mechanical properties of these products, which differ depending on the manufacturing orientation, we have used the process of annealing and remelting in a salt mould. This process helps to prevent deformation and maintain the shape of the products. We have also developed special products to which additional material has been added to reduce cavities in the remelted products. Our tests have shown that annealing moderately reduces the delamination force, while remelting greatly increases it.
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