Session: 03-01-07: Annual Conference-Wide Symposium on Additive Manufacturing

Paper Number: 145944

145944 - Optimization of Infill Percentage Versus Nozzle Diameter in Fused Deposition Modeling 3d Printing 

Fused Deposition Modeling (FDM) 3D printing has emerged as a multifaceted manufacturing technique, transcending its origins as a mere prototyping tool. However, to unlock its full potential, there exists a compelling need to augment production repeatability and efficiency while ensuring the highest standards of material quality. This comprehensive study embarks on a thorough exploration of the relationship between nozzle diameters and the 3D printing process, with a specific focus on three widely utilized filaments: polylactic acid (PLA), acrylonitrile butadiene styrene (ABS), and thermoplastic polyurethane (TPU).

The nozzle diameter, a fundamental parameter in FDM 3D printing, plays a pivotal role in dictating print quality, speed, and material flow characteristics. However, despite its significance, the influence of varying nozzle diameters on different filament materials remains relatively underexplored within the research landscape. Our investigation endeavors to bridge this gap, offering invaluable insights into the intricate dynamics at play.

Upon meticulous examination, our findings unveil substantial differentials in both print quality and mechanical properties across the diverse array of tested materials and nozzle diameters. Interestingly, we observe that smaller nozzle diameters consistently yield superior print quality and surface finish, albeit at the expense of extended print durations. Moreover, our study clarifies the material-specific nature of nozzle diameter selection, with certain filament materials exhibiting heightened compatibility with particular nozzle sizes. This underscores the critical importance of tailoring nozzle size to the unique characteristics of each filament.

To comprehensively assess the impact of nozzle diameter variation, we meticulously scrutinize the printability of each filament, accounting for various factors including adhesion, stringing, and warping. Our analysis reveals PLA's commendable performance across a broad spectrum of nozzle sizes, characterized by exceptional print quality and mechanical robustness. Conversely, ABS showcases heightened sensitivity to larger nozzle diameters owing to its elevated printing temperature requirements. TPU, renowned for its flexibility, presents a distinct set of challenges, particularly with smaller nozzle sizes due to inherent limitations in material flow dynamics.

In summation, our research represents a significant advancement in our understanding of the intricate interplay between nozzle diameter and 3D printing performance across PLA, ABS, and TPU filaments. By elucidating these complex relationships, our findings serve as invaluable guidelines for users, empowering them to make informed decisions in nozzle selection tailored to specific materials and application domains. Armed with this knowledge, practitioners can effectively enhance the efficiency, precision, and overall quality of their 3D printing endeavors across a myriad of industrial contexts.

Expanding further, it's essential to delve into the practical implications of our findings. One notable application lies in the optimization of 3D printing processes within industries ranging from automotive to consumer goods. For instance, in automotive manufacturing, where precision and durability are paramount, our research can inform decisions regarding nozzle selection to ensure consistent quality in components such as prototypes, tooling, and customized parts. Similarly, in the consumer goods sector, where rapid prototyping and customization are increasingly prevalent, our insights enable manufacturers to streamline production while maintaining high standards of finish and functionality.

By elucidating the intricate relationships between nozzle diameter and filament characteristics, we lay the groundwork for developing more sophisticated printing algorithms and material formulations tailored to specific nozzle configurations. This can lead to advancements in areas such as multi-material printing, where optimizing nozzle selection is crucial for achieving seamless integration of diverse materials within a single print.

 

Presenting Author: Olivia Watson Widener University

Presenting Author Biography: Olivia Watson is a mechanical engineering student at Widener University. During the past year, she has been working in Additive Manufacturing Laboratory of Mechanical Engineering Department as a research assistant.

Authors:

Olivia Watson Widener University
Boston Blake Widener University
Steven Pagano Widener University
Babak Eslami Widener University