| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Polymeric-based Materials: Challenges and Potentials
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| Presentation Title |
Polymer Additive Manufacturing of Low-cost Agile Tooling for Sheet Metal Forming |
| Author(s) |
Sam Storts, Ryan Hahnlen, Alex Miller, Muheeb Hijazeen, Carley Miller, Belquis Mbayu, Rohan Madan, Jacob Ross, Jason Walker |
| On-Site Speaker (Planned) |
Jason Walker |
| Abstract Scope |
In this work, pellet-fed polymer additive manufacturing was leveraged to develop low cost, agile tooling for sheet metal forming. A mid-format 3D printer with a one cubic-meter build envelope was utilized for fabricating test specimens. A novel backfilling method was used in which the specimens were 3D printed as open-back shells and then filled with a secondary material. 3D printed materials included ASA, CF-ABS, and CF-nylon. Backfilling materials included concrete, epoxy, and solder. All nine combinations were investigated and compared. Coupons were characterized in an array of five mechanical tests – compression, dovetail tensile, screw tensile, transverse, and plug shear. Prior to testing, the print parameters were examined and altered to best support the production of quality tools with the nozzle size of 3 mm being accepted for appropriate resolution. In general, the solder-CF-nylon and CF-ABS material systems provided the best combination of mechanical properties with ability for full recyclability. |