About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Materials
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Presentation Title |
Predict Adhesive Strength of Repair of Thermoplastic Component Based on Polymer Healing Theory |
Author(s) |
Charul Chadha, Albert Patterson, Iwona Jasiuk |
On-Site Speaker (Planned) |
Charul Chadha |
Abstract Scope |
Advancements in polymer technology have increased the production of high-valued parts using polymers. These parts are often produced in low volumes and have complex geometries, making them difficult to reproduce later especially when original tooling is no longer available. Reproduction of these parts from scratch using additive manufacturing (AM) can be time-consuming and at times economically infeasible. This paper explores the application of fused deposition modeling (FDM-extrusion based AM) to repair such parts and to print broken features on damaged parts. Polymer healing theory is then employed to understand the effect of print speed and print temperature on adhesive strength at the interface formed between the 3D-printed repair geometry and the original damaged part. The theory was verified using 3-point bending experiments. Results show that the adhesive strength at the interface is approximately proportional to the one-fourth power of print speed and increases with an increase in print temperature. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |