Simulation of edge quality in fused deposition modeling
ISSN: 1355-2546
Article publication date: 9 November 2018
Issue publication date: 16 April 2019
Abstract
Purpose
The purpose of this paper is to propose a method for simulating the profile of part edges as a result of the FDM process. Deviations from nominal edge shape are predicted as a function of the layer thickness and three characteristic angles depending on part geometry and build orientation.
Design/methodology/approach
Typical patterns of edge profiles were observed on sample FDM parts and interpreted as the effects of possible toolpath generation strategies. An algorithm was developed to generate edge profiles consistent with the patterns expected for any combination of input variables.
Findings
Experimental tests confirmed that the simulation procedure can correctly predict basic geometric properties of edge profiles such as frequency, amplitude and shape of periodic asperities.
Research limitations/implications
The algorithm takes into account only a subset of the error causes recognized in previous studies. Additional causes could be integrated in the simulation to improve the estimation of geometric errors.
Practical implications
Edge simulation may help avoid process choices that result in aesthetic and functional defects on FDM parts.
Originality/value
Compared to the statistical estimation of geometric errors, graphical simulation allows a more detailed characterization of edge quality and a better diagnosis of error causes.
Keywords
Acknowledgements
The author is indebted to Marco Cavallaro, Stefano Bianchi and Stefania Minnella for their support and collaboration in the experimental tests.
Citation
Armillotta, A. (2019), "Simulation of edge quality in fused deposition modeling", Rapid Prototyping Journal, Vol. 25 No. 3, pp. 541-554. https://doi.org/10.1108/RPJ-06-2018-0151
Publisher
:Emerald Publishing Limited
Copyright © 2018, Emerald Publishing Limited