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About this Abstract
Meeting 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Symposium 2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
Presentation Title Transparent Additively Manufactured Parts for Improved Mechanical Properties
Author(s) Justin Yoosung Kim, Rebecca Ang, Davis Avera, Harshith Adepu, Partha Pandit, Luz Sotelo
On-Site Speaker (Planned) Justin Yoosung Kim
Abstract Scope While a very useful tool for rapid prototyping as well as to produce complex and custom parts, Additive Manufacturing (AM) via Fused Filament Fabrication (FFF) poses many challenges. Parts are often porous due to inconsistencies during the printing process and improper handling and storage of feedstock. Utilizing clear filaments allows defects such as porosity to become quickly evident by visual means. However, there is limited literature on whether clear printing can lead to improved material properties as defects are minimized for transparency. This study aims to determine whether an optically transparent FFF 3D-printed polyethylene terephthalate glycol (PETG) part is less anisotropic than a typical PETG part using nondestructive evaluation. The porosity was determined through X-Ray computed tomography (CT), and the stiffness was found from the P-wave modulus, which was derived from ultrasound measurements. This study highlights an alternative approach to optimizing parameters towards stronger, multipurpose FFF 3D-printed parts.
Proceedings Inclusion? Undecided

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