Results 1 to 10 of about 1,105 (162)

Development of a Low-Cost Infrared Imaging System for Real-Time Analysis and Machine Learning-Based Monitoring of GMAW [PDF]

Sensors
This research presents a novel, low-cost optical acquisition system based on infrared imaging for real-time weld bead geometry monitoring in Gas Metal Arc Welding (GMAW).
Jairo José Muñoz Chávez, Margareth Nascimento de Souza Lira, Gerardo Antonio Idrobo Pizo, João da Cruz Payão Filho, Sadek Crisostomo Absi Alfaro, José Maurício Santos Torres da Motta   +5 more
doaj   +2 more sources

Electro-welded lattice reinforcement in reinforced concrete ribbed slabs [PDF]

Journal of the Croatian Association of Civil Engineers, 2021
Shear strength of precast concrete ribbed slabs reinforced with electro-welded lattice girders of variable height is experimentally verified. Technical justification is given for the use of high latticework in the reinforcement of precast lightweight double-tee ribbed slabs and precast reinforced concrete slabs 30 cm in thickness.
Aragón, Ángel, Pérez-Acebo, Heriberto, Aragón, Guillermo, Salas, Miguel Ángel   +3 more
openaire   +3 more sources

Inspection for non-planar shaped welded joints of pipes using FMC ultrasonic technique

e-Journal of Nondestructive Testing, 2023
In applying ultrasonic testing (UT) to pipes with welded joints, one of the challenges is about the access limitation of UT probes caused by non-planar weld reinforcement profiles.
Sho Yamaguchi, So Kitazawa, Yasuhiro Nidaira   +2 more
doaj   +1 more source

Study on the Molten Pool Fluid Behavior of PAW-Cable-Type Seven-Wire GMAW Hybrid Welding

Crystals, 2022
Plasma arc welding (PAW)-cable-type seven-wire GMAW (gas metal arc welding) hybrid welding is known as a high-efficiency welding combining plasma arc, GMAW arc and cable-type welding wire. In this study, numerical simulation via Fluent of the molten pool
Chao Zhang, Qingxian Hu, Juan Pu, Hao Wu
doaj   +1 more source

Properties study on Ti/Al butt joining by GMAW/GTAW hybrid welding-brazing

Materials Research Express, 2023
For adjusting the distribution of welding heat to obtain sound Ti/Al butt joints, Gas Metal Arc Welding (GMAW)/Gas Tungsten Arc Welding (GTAW) hybrid welding-brazing was introduced to join 5A06 to TC4. Then two kinds of tensile strength was tested.
Zhanhua Li, Yufeng Zhang, Yong Yang, Jie Feng, Lianpeng Zhang   +4 more
doaj   +1 more source

Multimodal-based weld reinforcement monitoring system for wire arc additive manufacturing

Journal of Materials Research and Technology, 2022
With the rise of big data and artificial intelligence, intelligent welding systems (IWS) are attracting more and more attention in machinery manufacturing. The work focused on weld reinforcement monitoring in wire arc additive manufacturing (WAAM).
Bin Shen, Jun Lu, Yiming Wang, Dongli Chen, Jing Han, Yi Zhang, Zhuang Zhao   +6 more
doaj   +1 more source

Detection of reinforcement of multi-bead and multi-layer weld in additive manufacturing based on on-line visual information of weld pool

Journal of Materials Research and Technology, 2023
In the multi-bead and multi-layer arc additive manufacturing process, the information of cladding reinforcement reflects the welding quality to a certain extent, so it is of great significance to monitor the reinforcement of cladding layers in real time.
Jun Lu, Yang Zhao, Xiaoyu Chen, Jing Han, Zhuang Zhao   +4 more
doaj   +1 more source

Collaborative and Quantitative Prediction for Reinforcement and Penetration Depth of Weld Bead Based on Molten Pool Image and Deep Residual Network

IEEE Access, 2020
Weld quality is generally determined by reinforcement and penetration depth of weld bead in arc welding. Penetration depth reflects weld strength and reinforcement reflects weld shape. What's more, there is a strong coupling between them, therefore it is
Jun Lu, Yumin Shi, Lianfa Bai, Zhuang Zhao, Jing Han   +4 more
doaj   +1 more source

Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding

Metals, 2022
Cladding is typically used to protect components from wear and corrosion while also improving the aesthetic value and reliability of the substrate. The cladding process induces significant residual stresses due to the temperature difference between the ...
Rameez Israr, Johannes Buhl, Sebastian Härtel, Markus Bambach   +3 more
doaj   +1 more source

A Study on Fatigue Crack Reinforcement of Bridge Deck and U-Rib Weld after Considering Residual Stress

Applied Sciences, 2023
In order to study the fatigue performance of the initial crack between the CFRP reinforced deck and the U-rib weld after considering the residual stress, the welding residual stress of the deck and the U-rib weld was analyzed by the welding subprogram of
Yu Hao, Li Ming
doaj   +1 more source