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Hongsheng Liu, Ruilei Xue, Jianping Zhou, Yang Bao and Yan Xu
Vertical oscillation arc welding for narrow gap gas metal arc welding (NG-GMAW) has a relatively simple structure, and it is widely used in all-position pipeline field welding. However, it has some shortcomings, such as incomplete fusion defects on the s...
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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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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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Charlotte Stehmar, Marius Gipperich, Markus Kogel-Hollacher, Alfredo Velazquez Iturbide and Robert H. Schmitt
Within additive manufacturing, process stability is still an unsolved challenge. Process instabilities result from the complexity of laser deposition processes and the dependence of the quality of the workpiece on a variety of factors in the process. Bec...
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Yan Dong, Guanglei Ji, Lin Fang and Xin Liu
During the service life of offshore pipelines, many start-up and shut-down cycles take place, possibly leading to significant cyclic loads. Fatigue failure may occur, resulting in serious environmental pollution and loss of property. The study aims to as...
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Bin Xie, Jiaxiang Xue, Xianghui Ren, Wei Wu and Zhuangbin Lin
Adopting the cold metal transfer plus pulse (CMT + P) process, 316L stainless steel wire was treated with a single channel multi-layer deposition experiment under different linear energy. The microstructures of different regions on the deposited samples ...
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Jean Robert Pereira Rodrigues, Carmem Célia Francisco do Nascimento, Silvio Rogerio de Freitas Batista, Louriel Oliveira Vilarinho, João Luis Meneses Barros, Rubens Soeiro Gonçalves
Pág. e37732
The TIG Dressing technique has been widely used for repairing cracks in welded structures when subjected to mechanical forces that induce localized fatigue, leading to the collapse during operation. However, this technique has not been used for studies i...
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Julia Madrid, Samuel Lorin, Rikard Söderberg, Peter Hammersberg, Kristina Wärmefjord and Johan Lööf
During multidisciplinary design of welded aircraft components, designs are principally optimized upon component performance, employing well-established modelling and simulation techniques. On the contrary, because of the complexity of modelling welding p...
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Juvenilson Costa Damascena, Lidiane Maciel Costa, Jean Robert Pereira Rodrigues, Louriel Oliveira Vilarinho, Gedeon Siva Reis, Carmem Célia Francisco do Nascimento
Pág. 347 - 353
Certain techniques, comprising machining and GTAW dressing, have been used in the weld bead edge (region of the welded joint between the weld metal and the base metal) to increase the fillet radius of the region by reducing the stress concentrator factor...
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A. P. Ivanov,V. V. Psiuk,?. A. Ivanov
Pág. 51 - 54
In the article the change of the remaining-tense state of channels (across and along the tested specimens) depending on position of the weld-fabricated guy-sutures is considered.
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