High-Power Fiber Laser Welding of High-Strength AA7075-T6 Aluminum Alloy Welds for Mechanical Properties Research
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Macrostructure of Laser Beam-Welded Joints
3.2. Microstructure of Laser Beam-Welded Joints
3.3. Hardness Measurements of Welded Joints
3.4. Micro-Chemical Analysis
3.5. Tensile Properties of Welded Joints
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Chemical Composition (wt %) | ||||||||
---|---|---|---|---|---|---|---|---|
Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Al |
0.14 | 0.23 | 1.37 | 0.16 | 2.51 | 0.21 | 5.56 | 0.03 | balance |
Mechanical Properties | ||||||||
0.2% Proof stress (MPa) | Tensile strength (MPa) | Elongation (%) | Hardness (HV) | |||||
453 | 521 | 8 | 189 |
Power (P) (kW) | Welding Speed (S) (m/min) | Defocusing Distance (Dd) (mm) | Top and Bottom Sides Shielding Gas/Flow Rate (L/min) |
---|---|---|---|
5.0–9.0 | 2.0–7.8 | −10.0 to +10.0 | Argon/13.0–25.0 |
Power (P) (kW); Heat Input (kJ/m) | Welding Speed (S) (m/min) | Defocusing Distance (Dd) (mm) | Top and Bottom Sides Shielding Gas/Flow Rate (L/min) |
---|---|---|---|
9/(90 kJ/m) | 6 | −10.0 | Argon/20 |
6/(180 kJ/m) | 2 | −10.0 | Argon/20 |
BM (wt %) | WM (wt %) | Difference (wt %) | Vapor Pressure (mbar) | Tm (K) | |
---|---|---|---|---|---|
Zn | 5.56 | 4.71 | 0.85 | 7.53 | 693 |
Mg | 2.51 | 2.01 | 0.5 | 0.49 | 923 |
Cu | 1.37 | 1.31 | 0.06 | 3.24 × 10−12 | 1358 |
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El-Batahgy, A.-M.; Klimova-Korsmik, O.; Akhmetov, A.; Turichin, G. High-Power Fiber Laser Welding of High-Strength AA7075-T6 Aluminum Alloy Welds for Mechanical Properties Research. Materials 2021, 14, 7498. https://doi.org/10.3390/ma14247498
El-Batahgy A-M, Klimova-Korsmik O, Akhmetov A, Turichin G. High-Power Fiber Laser Welding of High-Strength AA7075-T6 Aluminum Alloy Welds for Mechanical Properties Research. Materials. 2021; 14(24):7498. https://doi.org/10.3390/ma14247498
Chicago/Turabian StyleEl-Batahgy, Abdel-Monem, Olga Klimova-Korsmik, Aleksandr Akhmetov, and Gleb Turichin. 2021. "High-Power Fiber Laser Welding of High-Strength AA7075-T6 Aluminum Alloy Welds for Mechanical Properties Research" Materials 14, no. 24: 7498. https://doi.org/10.3390/ma14247498
APA StyleEl-Batahgy, A. -M., Klimova-Korsmik, O., Akhmetov, A., & Turichin, G. (2021). High-Power Fiber Laser Welding of High-Strength AA7075-T6 Aluminum Alloy Welds for Mechanical Properties Research. Materials, 14(24), 7498. https://doi.org/10.3390/ma14247498