Integration of FDM surface quality modeling with process design
Title: Integration of FDM surface quality modeling with process design
Authors and full affiliations: Alberto Boschetto, Luana Bottini, Francesco Veniali; Department of Mechanical and Aerospace Engineering, Sapienza University of Rome via Eudossiana 18, 00184 Rome, Italy
Keywords: fused deposition modeling; roughness prediction; accuracy prediction
Purpose: Develop an integrated methodology able to help the process design for a Fused Deposition Modeling product with the aim to meet the tolerance and roughness requirements.
Design/methodology/approach:
Findings: We can find a very marked correspondence between the predicted and fabricated surface morphology for each considered configuration: only very slight deviations are observed. This result confirms the good capability of the employed method to predict the obtainable surface finishing. Moreover, in the case study proposed in the article (a door handle), the methodology is able to orient the surface in a particular 3D rotation making the product acceptable for the required surface finish (the standard orientation φx = 0° and φy = 0° brings roughness peaks of 55 µm and makes the product not-compliant).
Practical implications: The used formulations permit to foresee the dimensional accuracy and the average roughness as a function of two FDM process parameters: the layer thickness and the deposition angle (φx and φy).
Full reference: BOSCHETTO, Alberto; BOTTINI, Luana; VENIALI, Francesco. Integration of FDM surface quality modeling with process design. Additive Manufacturing, 2016, 12: 334-344.
Link: https://www.sciencedirect.com/science/article/pii/S2214860416300926
