Narrow gap laser welding (NGLW) of structural steels—A technological review and future research recommendations

VSM Ramakrishna R, P Amrutha… - … International Journal of …, 2020 - Springer
Advanced welding processes for structural materials are gaining increasing importance for
strategic applications in nuclear, aerospace, automobile, and defence sectors. These …

Recent advances in CFD simulations of multiphase flow processes with phase change

SJ Li, LT Zhu, XB Zhang, ZH Luo - Industrial & Engineering …, 2023 - ACS Publications
Phase change is a phenomenon that has been extensively utilized in chemical engineering,
energy, electronics, vehicle, and space exploration. From both the science and engineering …

Selecting process parameters of crack-free Ni60A alloy coating prepared by coaxial laser cladding

B Shi, T Li, Z Guo, X Zhang, H Zhang - Optics & Laser Technology, 2022 - Elsevier
Ni60A alloy coating prepared by laser cladding is limited by the high cracking susceptibility.
In this study, the crack-free Ni60A coating is obtained by selecting suitable process …

A coupled ray-tracing based CFD and cellular automaton model for predicting molten pool formation and microstructure evolution in narrow gap laser welding

H Gu, T Väistö, C Wei, L Li, X Ren, L Qian - International Journal of Heat …, 2023 - Elsevier
Laser beam reflection plays a significant role in the temperature development history during
various laser material processes. Different from other processes where laser beam reflection …

Probing the impact of process variables in laser-welded aluminum alloys: A machine learning study

F Didi, H Pallathadka, S Abdullaev, RR Asaad… - Materials Today …, 2024 - Elsevier
This paper presents a pioneering approach, Bayesian machine learning (ML), for the
estimation and characterization of critical laser welding features in Aluminum alloys …

Real-time laser keyhole welding penetration state monitoring based on adaptive fusion images using convolutional neural networks

W Cai, P Jiang, LS Shu, SN Geng, Q Zhou - Journal of Intelligent …, 2023 - Springer
In laser keyhole welding process, the penetration state is an important index to evaluate the
quality of weld seam. In this paper, an innovative deep learning-based monitoring system …

[HTML][HTML] Influence of laser-wire interaction on heat and metal transfer in directed energy deposition

SMANR Abadi, Y Mi, A Kisielewicz, F Sikström… - International Journal of …, 2023 - Elsevier
In this study, laser metal fusion with feedstock wire is addressed. We investigated how
various process parameters affect the fraction of beam energy that is absorbed by the wire …

Quantifying the effects of gap on the molten pool and porosity formation in laser butt welding

L Guo, H Wang, H Liu, Y Huang, Q Wei… - International Journal of …, 2023 - Elsevier
To obtain a better joint quality in butt welding of aluminum, the gap filling process and the
quantification of the gap effects on the molten pool characteristic and the bubble formation …

Inhomogeneity of microstructure and mechanical properties in the interlayer regions for narrow gap laser wire filling welding of 316L stainless steel

Z Xu, J Wang, C Yan, J Ren, Y Zhou, Y Li… - Optics & Laser …, 2024 - Elsevier
A systematic and accurate analysis of microstructural evolution in the interlayer regions of
multilayer welded joint is of great importance for in-depth understanding of influence …

Energy reconstruction and metallurgical characteristics in 316L NG-LWFW with assisted wire wobbling by numerical and experimental analysis

J Li, Y Liu, Y Tao, Q Zhang, Z Zhen, C Cai… - Optics & Laser …, 2021 - Elsevier
A novel, new approach of narrow gap laser wire feeding welding (NG-LWFW) with
electromagnetic assisted wire wobbling is proposed to solve incomplete sidewall fusion and …