| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Study on Multiple Beam Interaction for Laser Powder Bed Fusion |
| Author(s) |
Wenxuan Zhang, Luc Deike, Craig Arnold |
| On-Site Speaker (Planned) |
Wenxuan Zhang |
| Abstract Scope |
Industrial powder bed fusion techniques often utilize a single laser beam to melt powders, however more recent advances have taken advantage of multiple beams to increase processing speed and control energy input. Despite these developments, there is a lack of fundamental research on how the multiple beams interact with each other to form different molten pools, affecting various performance metrics of the final products. In this work, we use two synchronized laser beams to study the proximity of two melt tracks with different spatial and temporal displacements between the laser beams. In particular, we examine the laser affected areas where two nearby tracks coalesce and where a single track splits into two separate ones. We determine the critical distance required for two melt tracks to merge together and study how the temporal displacement affects the coalescence and splitting behaviors of the two tracks. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |