Distortion prediction of FFF parts
On this page, you can predict the distortion of the parts to be manufactured by FFF or FDM, depending on manufacturing parameters such as material, layer height, number of layers, manufacturing temperature, and environment, among others. See Figure 1 to understand the parameters to be considered and the distortion to be calculated.
The distortion is calculated with the equation (1) [1], [2] In applied case of reference, it predicted with 7.9% error:
The thermal properties of some polymers frequently used in FFF can be consulted in Table 1, presented below.
Then, use the calculated field form by entering the different required parameters and referring to the last row for the distortion.
In order to introduce the number of layers of the part, calculate it by dividing the thickness of the part by the layer height, i.e. n=s/Δs
References
[1] J. S. Xin Li, Zhuo Wang, “Research on the warping deformation in fused deposition modeling,” Asian J. Res. Chem. Pharm. Sci., vol. 4, no. 1, pp. 21–30, 2016.
[2] H. I. Medellin-Castillo and J. Zaragoza-Siqueiros, “Design and Manufacturing Strategies for Fused Deposition Modelling in Additive Manufacturing: A Review,” Chinese J. Mech. Eng., vol. 32, no. 1, Jun. 2019.