| About this Abstract |
| Meeting |
2014 TMS Annual Meeting & Exhibition
|
| Symposium
|
A Lifetime of Experience with Titanium Alloys: An SMD Symposium in Honor of Jim Williams, Mike Loretto and Rod Boyer
|
| Presentation Title |
Improving Surface Finish of Electron Beam Melting Parts by Laser Ablation |
| Author(s) |
Ashfaq Mohammad, Muneer Khan, Abdulrahman AlAhmari |
| On-Site Speaker (Planned) |
Ashfaq Mohammad |
| Abstract Scope |
Electron Beam Melting (EBM) is an additive manufacturing technology, which is capable of producing near-net shape parts of Titanium alloy Ti-6Al-4V. One of the current drawbacks of EBM is the high surface roughness of parts. Reason for such a high surface roughness originates from the relatively coarser powder feedstock. Finer powder beyond a limit would destabilize the vacuum system, an essential requirement in EBM process. The coarse powder particles gets embedded into the adjacent solidifying metal at the boundaries, thus giving rise to a rough finish. In this work, Laser Ablation would be employed to improve surface finish of an EBM part. Important aspects that would be studied are: the minimum thickness of layer that should be removed, how this removal of material would affect the microstructure of the underlying material, and finally how to optimize the laser ablation process with respect to the final accuracy of the part. |
| Proceedings Inclusion? |
Planned: A print-only volume |