| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
The Effect of LaserSscan Strategy on Residual Stress of Titanium Alloys Using Laser Foil Printing Additive Manufacturing Processes |
| Author(s) |
Ting-Chun Huang, Chia-Hung Hung |
| On-Site Speaker (Planned) |
Chia-Hung Hung |
| Abstract Scope |
In this study, we investigated the effect of two different scan strategies, line pattern scanning (LPS) and spot pattern scanning (SPS) strategies, on the residual stress for the fabrication of Ti-6Al-4V parts by using the laser-foil-printing (LFP) process. The residual stress of LFP-fabricated parts was measured through X-ray diffraction (XRD). The XRD and simulated results indicate the residual stress of part made by SPS can be significantly reduced by 55% compared part made by LPS because LPS scanning length is clearly larger than SPS scanning length. No accumulation of residual stress occurs when using SPS in LFP. Besides, SEM images and XRD patterns show the cross section of LPS is dominated by α' phase while the cross section of SPS is consisted of α phase and β phase. Thus, the residual stress of Ti-6Al-4V parts can be reduced effectively in LFP by using a SPS strategy. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |