Laser Welding
1
UNIDEMI, Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
2
School of Mechanical and Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 611731, Sichuan, China
*
Authors to whom correspondence should be addressed.
Metals 2019, 9(1), 69; https://doi.org/10.3390/met9010069
Submission received: 8 January 2019
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Accepted: 11 January 2019
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Published: 11 January 2019
(This article belongs to the Special Issue Laser Welding)
1. Introduction and Scope
Welding technologies are critical to most relevant engineering applications. Laser welding is a key joining technology characterized by small heat affected and fusion zones, as well as minimal or non-existent distortions. As a result, laser welding is often used for joining advanced metallic alloys.
The metallurgical alterations that occur as a result of the welding process determine the mechanical properties of the welded part. As such, a fundamental understanding of process-microstructure-properties relationships is necessary. Given the non-equilibrium solidification conditions found in laser welding, a thorough understanding of the associated welding metallurgy is even more important. This knowledge can then be used to optimize the joining process, aiming at improving the properties of the welded joints.
2. Contributions
The present special issue on “Laser Welding” was a success with a total of 16 original research works published after peer- review. Different topics were discussed within this special issue: modelling and simulation of laser welding were presented in [1,2,3,4]; porosity control by means of high speed imaging and microscopy techniques was studied and discussed [5]; the effect of processing parameters on the microstructure and mechanical properties of laser-welded joints was evaluated for different metallic systems such as AZ31 alloy [6], steels [7,8,9,10], Ti-based alloys [11,12,13], and Al-based alloys [14]; and finally, dissimilar laser welding of aluminum to steel was presented [15,16].
3. Conclusions and Outlook
Laser welding is one of the most important and versatile welding techniques for joining advanced materials. Exciting developments in this field are continuously being presented, pushing the boundaries of the application of the technique. The need to develop modelling and simulation tools and understanding the welding metallurgy associated with the process and process control, among other features, will require a continuous effort by researchers in this field.
As guest editors, we would like to express our gratitude to all the authors who submitted their contributions, making this special issue a success. Furthermore, we gratefully acknowledge and the peer-reviewers who contributed to improving the quality of the manuscripts. Finally, special thanks to Natalie Sun and the remaining Metals editorial team for their support and assistant during the call period of this special issue.
Conflicts of Interest
The authors declare no conflict of interest.
References
- Wu, J.; Zhang, H.; Feng, Y.; Luo, B. 3D Multiphysical Modelling of Fluid Dynamics and Mass Transfer in Laser Welding of Dissimilar Materials. Metals 2018, 8, 443. [Google Scholar] [CrossRef]
- Ruan, X.; Zhou, Q.; Shu, L.; Hu, J.; Cao, L. Accurate Prediction of the Weld Bead Characteristic in Laser Keyhole Welding Based on the Stochastic Kriging Model. Metals 2018, 8, 486. [Google Scholar] [CrossRef]
- Dal, M.; Peyre, P. Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process. Metals 2017, 7, 218. [Google Scholar] [CrossRef]
- D’Ostuni, S.; Leo, P.; Casalino, G. FEM Simulation of Dissimilar Aluminum Titanium Fiber Laser Welding Using 2D and 3D Gaussian Heat Sources. Metals 2017, 7, 307. [Google Scholar] [CrossRef]
- Popescu, A.; Delval, C.; Leparoux, M. Control of Porosity and Spatter in Laser Welding of Thick AlMg5 Parts Using High-Speed Imaging and Optical Microscopy. Metals 2017, 7, 452. [Google Scholar] [CrossRef]
- Laser, F.; Az, W. Study on the Size Effects of H-Shaped Fusion Zone of Fiber Laser Welded AZ31 Joint. Metals 2018, 8, 198. [Google Scholar] [CrossRef]
- Górka, J.; Stano, S. Microstructure and Properties of Hybrid Laser Arc Welded Joints (Laser Beam-MAG) in Thermo-Mechanical Control Processed S700MC Steel. Metals 2018, 8, 132. [Google Scholar] [CrossRef]
- Ridha Mohammed, G.; Ishak, M.; Ahmad, S.; Abdulhadi, H. Fiber Laser Welding of Dissimilar 2205/304 Stainless Steel Plates. Metals 2017, 7, 546. [Google Scholar] [CrossRef]
- Xue, X.; Pereira, A.; Amorim, J.; Liao, J. Effects of Pulsed Nd:YAG Laser Welding Parameters on Penetration and Microstructure Characterization of a DP1000 Steel Butt Joint. Metals 2017, 7, 292. [Google Scholar] [CrossRef]
- Evin, E.; Tomáš, M. The Influence of Laser Welding on the Mechanical Properties of Dual Phase and Trip Steels. Metals 2017, 7, 239. [Google Scholar] [CrossRef]
- Zeng, Z.; Oliveira, J.P.; Bu, X.; Yang, M.; Li, R.; Wang, Z. Laser Welding of BTi-6431S High Temperature Titanium Alloy. Metals 2017, 7, 504. [Google Scholar] [CrossRef]
- Sánchez-Amaya, J.; Pasang, T.; Amaya-Vazquez, M.; Lopez-Castro, J.; Churiaque, C.; Tao, Y.; Botana Pedemonte, F. Microstructure and Mechanical Properties of Ti5553 Butt Welds Performed by LBW under Conduction Regime. Metals 2017, 7, 269. [Google Scholar] [CrossRef]
- Caiazzo, F.; Alfieri, V.; Corrado, G.; Argenio, P.; Barbieri, G.; Acerra, F.; Innaro, V. Laser Beam Welding of a Ti–6Al–4V Support Flange for Buy-to-Fly Reduction. Metals 2017, 7, 183. [Google Scholar] [CrossRef]
- Zhang, X.; Li, L.; Chen, Y.; Yang, Z.; Zhu, X. Experimental Investigation on Electric Current-Aided Laser Stake Welding of Aluminum Alloy T-Joints. Metals 2017, 7, 467. [Google Scholar] [CrossRef]
- Cui, L.; Chen, B.; Qian, W.; He, D.; Chen, L. Microstructures and Mechanical Properties of Dissimilar Al/Steel Butt Joints Produced by Autogenous Laser Keyhole Welding. Metals 2017, 7, 492. [Google Scholar] [CrossRef]
- Casalino, G.; Leo, P.; Mortello, M.; Perulli, P.; Varone, A. Effects of Laser Offset and Hybrid Welding on Microstructure and IMC in Fe–Al Dissimilar Welding. Metals 2017, 7, 282. [Google Scholar] [CrossRef]
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MDPI and ACS Style
Oliveira, J.P.; Zeng, Z. Laser Welding. Metals 2019, 9, 69. https://doi.org/10.3390/met9010069
AMA Style
Oliveira JP, Zeng Z. Laser Welding. Metals. 2019; 9(1):69. https://doi.org/10.3390/met9010069
Chicago/Turabian StyleOliveira, J. P., and Zhi Zeng. 2019. "Laser Welding" Metals 9, no. 1: 69. https://doi.org/10.3390/met9010069
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