Results 1 to 10 of about 5,792 (164)

Welding Defect Monitoring Based on Multi-Scale Feature Fusion of Molten Pool Videos [PDF]

Sensors
Real-time quality monitoring through molten pool images is a critical focus in researching high-quality, intelligent automated welding. However, challenges such as the dynamic nature of the molten pool, changes in camera perspective, and variations in ...
Chenbo Shi, Lei Wang, Changsheng Zhu, Tengyue Han, Xiangyu Zhang, Delin Wang, Chun Zhang   +6 more
doaj   +2 more sources

Predictions of Additive Manufacturing Process Parameters and Molten Pool Dimensions with a Physics-Informed Deep Learning Model

Engineering, 2023
Molten pool characteristics have a significant effect on printing quality in laser powder bed fusion (PBF), and quantitative predictions of printing parameters and molten pool dimensions are critical to the intelligent control of the complex processes in
Huiliang Wei, Wenhe Liao
exaly   +3 more sources

Analysis of Controlled Driving and Spreading Behavior of Molten Pool in Cold Metal Transfer

Energies, 2022
The controlled short-circuit transfer is used to control the heat input of the molten pool and the base metal in the cold metal transfer welding process, including droplet formation, droplet transfer and molten pool flow.
An Zhang, Yanfeng Xing, Xiaobing Zhang, Fuyong Yang, Juyong Cao   +4 more
doaj   +1 more source

Cross-Scale Simulation Research on the Macro/Microstructure of TC4 Alloy Wire Laser Additive Manufacturing

Metals, 2022
A cross-scale model of macro-micro coupling is established for the wire laser additive manufacturing process of the TC4 titanium alloy. The model reproduces the dynamic evolution process of the molten pool shape, reveals the temperature change law in the
Yongbiao Wang, Cong Chen, Xintian Liu, Jiaxin Wang, Yang Zhang, Weimin Long, Shaokang Guan, Liming Peng   +7 more
doaj   +1 more source

Microstructure and Anisotropy of the Mechanical Properties of 316L Stainless Steel Fabricated by Selective Laser Melting

Metals, 2021
Significant anisotropy in mechanical properties was observed in 316L stainless steel (SS) that was subjected to selective laser melting (SLM) to produce a hierarchical structure, composed of molten pool, columnar grains, and a cellular substructure. Such
Baogang Zhou, Pingwei Xu, Wei Li, Yilong Liang, Yu Liang   +4 more
doaj   +1 more source

Thermal-fluid behavior and microstructure morphology during laser melting deposition of TiC/Ti6Al4V functionally graded materials

Journal of Materials Research and Technology, 2023
Laser melting deposition (LMD) is an additive manufacturing technology that involves complex thermodynamic and kinetic characteristics in the molten pool.
Leilei Wang, Xiaohu Guan, Xingyun Yang, Xiaohong Zhan, Xukang Cai, Bowen Shi   +5 more
doaj   +1 more source

Molten Pool Behaviors in Double-Sided Pulsed GMAW of T-Joint: A Numerical Study

Metals, 2021
The T-joint is one of the essential types of joints in aluminum welded structures. Double-sided welding is a preferable solution to maintain high efficiency and avoid significant distortion during T-joint welding.
Haicang Zhang, Chunsheng Wang, Sanbao Lin   +2 more
doaj   +1 more source

Enhanced molten-pool boundary stability for microstructure control using quasi-continuous-wave laser additive manufacturing

Journal of Materials Research and Technology, 2023
The molten-pool boundary morphology and its stability play a key role in dendrite growth and solidification texture during laser additive manufacturing.
Yanqin Li, Wenjia Xiao, Hui Xiao, Xingbo Liu, Kuanfang He, Pan Xie, Lijun Song   +6 more
doaj   +1 more source

Numerical Simulation of Droplet Filling Mode on Molten Pool and Keyhole during Double-Sided Laser Beam Welding of T-Joints

Crystals, 2022
The effects of droplets filling the molten pools during the double-sided laser beam welding (DSLBW) of T-joints was established. The dynamic behavior of the keyhole and the molten pool under different droplet filling modes were analyzed.
Jin Peng, Jigao Liu, Xiaohong Yang, Jianya Ge, Peng Han, Xingxing Wang, Shuai Li, Zhibin Yang   +7 more
doaj   +1 more source

Simulation of the Evolution of Thermal Dynamics during Selective Laser Melting and Experimental Verification Using Online Monitoring

Sensors, 2020
The process parameters of selective laser melting (SLM) significantly influence molten pool formation. A comprehensive understanding and analysis, from a macroscopic viewpoint, of the mechanisms underlying these technological parameters and how they ...
Peiying Bian, Xiaodong Shao, Jingli Du, Fangxia Ye, Xiuping Zhang, Yaozhao Mu   +5 more
doaj   +1 more source