| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Agile Additive Manufacturing by Employing Breakthrough Functionalities
|
| Presentation Title |
A Distortion Compensation Workflow Accounting for the Effects of Post-processing in Metal Additive Manufacturing |
| Author(s) |
Varun Gudibanda, Matthew Balcer, Ezekiel Granillo, Kyle L. Johnson, Carl Herriott, Michael E. Stender, Ellen Wagman, Sannmit Shinde |
| On-Site Speaker (Planned) |
Varun Gudibanda |
| Abstract Scope |
Large thermal gradients and temperature fluctuations are primary obstacles to metal Additive Manufacturing (AM) because they generate residual stress and distortion of the part during the printing process. The additively manufactured components result in non-negligible deformations in the final shape of the print, which can invalidate the precision of critical dimensions. For this reason, an efficient numerical distortion compensation workflow was developed which iteratively solves for a modified geometry that matches the as-designed part. In each iteration, the layer-by-layer build is simulated using the modified inherent strain method. The component then undergoes a heat treatment to reduce the internal stresses formed during the build process and is removed from its baseplate by an EDM wire. A numerical example will be presented which shows the comparison of the distortion before and after the compensation algorithm is utilized. SNL is managed and operated by NTESS under DOE NNSA contract DENA0003525. |
| Proceedings Inclusion? |
Planned: |