Abstract: The article examines the effect of 3D printing speed on the accuracy of the product. According to the results of the study, the achievable and feasible accuracy of the additive machine was determined. The relationship between the geometric accuracy of the product and the performance of the additive machine is shown. The following parameters of the technological mode have a decisive influence on the accuracy of the product and the performance of the additive machine: the degree of filling of the product body and the 3D printing speed. The minimum shrinkage of the material during the FDM-based layer-bylayer synthesis of the product is observed when the product body filling percentage is 100%. It is established that the achievable accuracy for an additive machine is observed at a minimum 3D printing speed. The maximum 3D printing speed with acceptable accuracy of the manufactured product corresponds to feasible accuracy. The parts manufactured by layer-by-layer synthesis with IT14 grade quality ensure complete interchangeability in many units and machines.

Keywords: geometric accuracy, achievable accuracy, feasible accuracy, additive technologies, additive machine, FDM technologies, layer-by-layer synthesis, 3D printing.

For citation: Andryushkin A. Yu., Butsikin E. B., Li ZhenNing The effect of the FDM 3D additive machine printing speed on the accuracy of the product. Aerospace Engineering and Technology. 2023. Vol. 1. No. 2, pp. 118–129.