| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Large-Scale Metal Additive Manufacturing
|
| Presentation Title |
Moving Heat Source Process Simulation for Wire Arc Additive Manufacturing via a Mesh-free Method and GPU Computing |
| Author(s) |
Xavier Jimenez, Florian Dugast, Alaa Olleak, Albert To |
| On-Site Speaker (Planned) |
Xavier Jimenez |
| Abstract Scope |
Wire arc additive manufacturing (WAAM) combines a high deposition rate and the ability to easily increase build volume to produce large-scale metal parts. The high deposition rate is also tied into high energy inputs, so thermal management becomes important to ensure the properties of the material remain the same throughout the entire part not only in the build direction but also along the build plane. Due to the large computation time, many CPU finite element method (FEM) tools for large-scale parts use a layer-by-layer one-shot activation approach. This talk presents a mesh-free GPU moving heat source process simulation model for WAAM that can accurately determine the effects of the printing parameters without compromising simulation time. The results showed good accuracy when compared to a FEM model while obtaining a speedup of 10x. Several simulation examples will be demonstrated on WAAM parts to show its efficiency and variation of melt pool. |