Combination of Scanning Strategies and Optimization Experiments for Laser Beam Powder Bed Fusion of Ti-6Al-4V Titanium Alloys
Abstract
:1. Introduction
2. Materials and Methods
2.1. L-PBF Forming Materials and Equipment
2.2. L-PBF Forming Parameters and Scanning Strategy Combination Design
3. Results and Discussion
3.1. Surface Topography
3.2. Surface Roughness
3.3. Surface Hardness
3.4. Mechanical Properties
3.5. Density
3.6. Microstructure
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Element | Ti | Al | V | Fe | C | N | H | O |
---|---|---|---|---|---|---|---|---|
Wt.% | Balance | 5.5~6.5 | 3.5~4.5 | 0.25 | 0.08 | 0.03 | 0.0125 | 0.13 |
Parameter | Value |
---|---|
Laser power (W) | 250 |
Exposure time (μs) | 100 |
Point distance (μm) | 50 |
Hatch space (mm) | 0.07 |
Scanning speed (mm/s) | 500 |
Layer thickness (μm) | 50 |
Number | The Combination Method of Different Scan Strategies | Number | The Combination Method of Different Scan Strategies |
---|---|---|---|
1 | CHESS&0° (C0) | 9 | STRIPE&45° (S45) |
2 | CHESS&90° (C90) | 10 | 0°&0° (0°) |
3 | CHESS&45° (C45) | 11 | 90°&90° (90°) |
4 | LINE&0° (L0) | 12 | 45°&45° (45°) |
5 | LINE&90° (L90) | 13 | LINE (L) |
6 | LINE&45° (L45) | 14 | CHESS (C) |
7 | STRIPE&0° (S0) | 15 | STRIPE (S) |
8 | STRIPE&90° (S90) |
References | Manufacturing Means | Yield Strength (MPa) | Ultimate Tensile Stress (MPa) | Elongation (%) |
---|---|---|---|---|
[40] | As fabricated | 937 | 1107 | 7.3 |
[41] | As fabricated | - | 1188 | 9.5 |
[42] | As fabricated | 969 | 1087 | 11.3 |
[43] | As fabricated | 1021 | 1200 | 2.23 |
[44] | As fabricated | 968 | 1013 | 3.2 |
In this research | As fabricated | 912 | 1125 | 8.2 |
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Shi, W.; Li, J.; Jing, Y.; Liu, Y.; Lin, Y.; Han, Y. Combination of Scanning Strategies and Optimization Experiments for Laser Beam Powder Bed Fusion of Ti-6Al-4V Titanium Alloys. Appl. Sci. 2022, 12, 6653. https://doi.org/10.3390/app12136653
Shi W, Li J, Jing Y, Liu Y, Lin Y, Han Y. Combination of Scanning Strategies and Optimization Experiments for Laser Beam Powder Bed Fusion of Ti-6Al-4V Titanium Alloys. Applied Sciences. 2022; 12(13):6653. https://doi.org/10.3390/app12136653
Chicago/Turabian StyleShi, Wentian, Jihang Li, Yanlong Jing, Yude Liu, Yuxiang Lin, and Yufan Han. 2022. "Combination of Scanning Strategies and Optimization Experiments for Laser Beam Powder Bed Fusion of Ti-6Al-4V Titanium Alloys" Applied Sciences 12, no. 13: 6653. https://doi.org/10.3390/app12136653