| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Surface Engineering VII
|
| Presentation Title |
Surface finishing of AM metallic parts by electrochemical polishing |
| Author(s) |
Mary Louise Gucik, Kasandra Escarcega Herrera, Michael Melia |
| On-Site Speaker (Planned) |
Mary Louise Gucik |
| Abstract Scope |
Electropolishing is a well-known post-processing technique used in the surface finishing of additively manufactured metallic parts. The overall effectiveness to smooth, brighten, and deburr is driven by many parameters and in this work, the electrolyte composition, cathode geometry, and timescale were investigated. Moving away from conventional, acid-based electrolytes to electropolish stainless steel, the work herein was performed in an environmentally friendly bath consisting of polyethylene glycol, sodium chloride, and a variety of chemical additives including polar molecules, quaternary salts, and zwitterions. Anodic polarization curves were run to determine the polishing regime for each additive and real-time structural information related to the dynamic electrolyte/electrode interface was gathered using in-situ Raman spectroscopy. In addition, a series of conformal cathodes were printed to study the rate of removal across varying current densities as well as various distances.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525. SAND2024-08454A |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Electrometallurgy, Surface Modification and Coatings |