In situ structural validation of components manufactured using fused filament fabrication

Yanzhou Fu; Austin Downey; Lang Yuan; Yunusa Balogun; Avery Pratt

doi:10.1117/12.2581600

22 March 2021 In situ structural validation of components manufactured using fused filament fabrication

Yanzhou Fu, Austin Downey, Lang Yuan, Yunusa Balogun, Avery Pratt

Author Affiliations +

Proceedings Volume 11592, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XV; 115921E (2021) https://doi.org/10.1117/12.2581600
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only

Conference Poster

Abstract

Improvements to processes and materials have led to increased additive manufacturing capabilities using the fused filament fabrication method in terms of speed, quality, and repeatability. However, there are significant challenges in guaranteeing the desired output quality due to uncertainties inherent to the printing process. These include uncertainties in the quality of raw materials across different batches, fabrication environment (e.g., humidity, temperature), and machine wearing. The widespread adoption of fused filament fabrication for industrial applications faces considerable challenges in reducing part-to-part variations and assuring the mechanical properties of a manufactured component. In this paper, an in situ fault detection platform that considers the structural properties of the printed part is proposed. The presented system uses the optical camera and a deep learning methodology to detect faults online using training sets developed offline. The performance of the system is quantified using a variety of metrics. Computational speed for inference computation, minimum fault-sized detection, and measurement noise in the system are examined in this work.

Conference Presentation

Citation Download Citation

Yanzhou Fu, Austin Downey, Lang Yuan, Yunusa Balogun, and Avery Pratt "In situ structural validation of components manufactured using fused filament fabrication", Proc. SPIE 11592, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XV, 115921E (22 March 2021); https://doi.org/10.1117/12.2581600

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