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Liang Yang, Miaoer Liu, Yun Liu, Tao Zhang, Hailong Lu, Qingzhen Lu and Jun Yan
A cryogenic hose is used to transport liquefied natural gas at sea, where flexible fittings are sealed by corrugated lining and end flange welding. However, the extreme cryogenic temperatures of the conveyed fluid introduce substantial challenges to the ...
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Antti Ahola, Kalle Lipiäinen, Juuso Lindroos, Matti Koskimäki, Kari Laukia and Timo Björk
Weld quality and life extension methods of welded details in ship structures made of high-strength and ultra-high-strength steels are of high importance to overcome the issues related to the fatigue characteristics of welded high-strength steels. The cur...
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Guoqian Wei, Shanshan Li, Yongxing Guo and Zhang Dang
The real weld toe geometry is generally not mathematically perfect, resulting in obvious stress concentration effects, both on the weld section and along the longitudinal direction of the weld toe. The true stress-strain state at the local weld toe direc...
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Dongpil Cho, Seongkil Nam, Chulho Cho, Dajung Lee, Eunyoung Jeong, Youngcheon Jeong, Jaeyik Lee, Marcus Cridland, Bongjin Kim, Kwangsoo Kim, Jihoon Kim and Myunghyun Kim
Tandem SAW (Submerged Arc Welding) is one welding process that has been applied to maximize the welding productivity at the panel stage in ship building field. The weld bead profiles produced by Tandem SA welding exceed the acceptance criteria specified ...
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Kinoshita, K.,Arakawa, S.
Pág. 68 - 74
For fatigue assessment, recently effective notch stress (ENS) approach is accepted as a valid alternative to fracture mechanics approaches in Japan. However, at least one study showed that the fatigue assessment at weld root of load-carrying crucif...
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Brook Weld Muller
Pág. 33 - 39
This essay describes strategic approaches to graphic representation associated with critical environmental engagement and that build from the idea of works of architecture as stitches in the ecological fabric of the city. It focuses on the building up of...
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Miikka Karhu, Veli Kujanpää, Harri Eskelinen and Antti Salminen
In thick section laser welding, filler metal addition is usually required to improve joint fit-up tolerances or to control the chemical composition of the weld metal. With deep and narrow welds produced using an over-alloyed filler metal, it may be chall...
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Sadiq Gbagba, Lorenzo Maccioni and Franco Concli
In the shipbuilding, construction, automotive, and aerospace industries, welding is still a crucial manufacturing process because it can be utilized to create massive, intricate structures with exact dimensional specifications. These kinds of structures ...
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Xuan Zhang, Minglu Zhang, Shilong Jiao, Lingyu Sun and Manhong Li
At present, numerous wall-climbing robots have been developed, and applied in ship manufacturing for weld detection to ensure safe navigation. Limited by rigid mechanical structure and complex detection, mostly existing robots are hardly to complete weld...
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Hamed Raoofi, Asa Sabahnia, Daniel Barbeau and Ali Motamedi
Traditional methods of supervision in the construction industry are time-consuming and costly, requiring significant investments in skilled labor. However, with advancements in artificial intelligence, computer vision, and deep learning, these methods ca...
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Yushan Gao, Shihui Huo, Peiyan Wang and Ping Zhang
The load-carrying capacities of welded joints need to be paid attention to in the design of the frame, which transfers the thrust generated by the rocket engine to the rocket body. A load-carrying capacity evaluation method of welded joints based on the ...
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Qingli Ding, Hrishikesh Das, Piyush Upadhyay, Bryer C. Sousa, Kubra Karayagiz, Adam Powell and Brajendra Mishra
Friction stir welded (FSW) aluminum?magnesium lightweight vehicle joints have gained significant interest due to their high strength-to-weight ratio. In this work, the corrosion resistance of this material is analyzed through electrochemical tests, which...
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Guang Yang, Kainan Guan, Li Zou, Yibo Sun and Xinhua Yang
The cold metal transfer (CMT) process is widely used in thin plate welding because of its characteristics of low heat input and stable arc. In actual production, a larger weld gap, misalignment, or other problems due to assembly error lead to serious wel...
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Frederik Maiwald, Clemens Roider, Michael Schmidt and Stefan Hierl
Optical coherence tomography enables the three-dimensional inspection of internal structures like the weld seam in polymer parts and has excellent prerequisites for process monitoring in the optical and medical industries.
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Van Thao Le, Dinh Si Mai, Van Thuc Dang, Duc Manh Dinh, Thi Hong Cao, Van Anh Nguyen
Pág. 01 - 11
This paper aims to investigate the fabrication of high strength low alloy (HSLA) steels by wire and arc-based directed energy deposition (WADED). Firstly, the relationship between the process variables (including the travel speed-V, the current-C, and th...
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Simon Verspeek, Bart Ribbens, Xavier Maldague and Gunther Steenackers
Spot welds have a significant part in the creation of automotive vehicles. Since the integrity of, for example, a car, is dependent on the performance of multiple welds, it is important to ensure the quality of each spot weld. Several attempts have been ...
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Wenhui Hou, Dashan Zhang, Ye Wei, Jie Guo and Xiaolong Zhang
The weld defects inspection from radiography films is critical for assuring the serviceability and safety of weld joints. The various limitations of human interpretation made the development of innovative computer-aided techniques for automatic detection...
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Jerzy Winczek, Elzbieta Gawronska, Marek Gucwa and Norbert Sczygiol
The article presents the modeling of temporary temperature and phase share calculations during SAW (submerged arc welding) overlaying of steel elements. The input heat of a melted electrode and the heat of direct electric arc impact have been taken into ...
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Yudy Surya Irawan,Fakhri Razaq,Wahyono Suprapto,Bayu Satria Wardana
Pág. 31 - 39
Friction welding is a solid-state joining technique. It is suitable to be used to join a round bar of aluminum that has problems in joining. This paper reports measurements of the tensile strength and fatigue crack growth rate of a continuous drive frict...
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Moch. Syamsul Ma'arif,Christopher David Cook
Pág. 47 - 56
Lighter construction in the structure of transportation make industries rely on aluminium as construction materials and new technology of joining such as friction stir welding become increasingly applied. Since welding force in the process is considered ...
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