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Arc welding

About: Arc welding is a research topic. Over the lifetime, 25393 publications have been published within this topic receiving 168182 citations.


Papers
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Patent
17 Mar 2000
TL;DR: In this article, a welding method capable of increasing or decreasing a welding wire feeding speed during welding is presented, where, after short-circuiting is detected, the welding wire feed speed is decreased, and, after a transfer to arcing by being freed from short circuiting, the wire feed rate is increased.
Abstract: A welding method capable of increasing or decreasing a welding wire feeding speed during welding, wherein, after short-circuiting is detected, a welding wire feeding speed is decreased, and, after a transfer to arcing by being freed from short-circuiting is detected, a welding wire feeding speed is increased.

49 citations

Journal ArticleDOI
Lei Yang1, En Li1, Long Teng1, Junfeng Fan1, Mao Yijian1, Zaojun Fang1, Zize Liang1 
TL;DR: In this article, the shape from shading (SFS) algorithm is used to reconstruct the 3D shapes of the welding seam and the curvature information is extracted as the feature vector of the welds.
Abstract: In the modern manufacturing industry, the welding quality is one of the key factors which affect the structural strength and the comprehensive quality of the products. It is an important part to establish the standard of welding quality detection and evaluation in the process of production management. At present, the detection technologies of welding quality are mainly performed based on the 2D image features. However, due to the influence of environmental factors and illumination conditions, the welding quality detection results based on grey images are not robust. In this paper, a novel welding detection system is established based on the 3D reconstruct technology for the arc welding robot. The shape from shading (SFS) algorithm is used to reconstruct the 3D shapes of the welding seam and the curvature information is extracted as the feature vector of the welds. Furthermore, the SVM classification method is adopted to perform the evaluation task of welding quality. The experimental results show that the system can quickly and efficiently fulfill the detection task of welding quality, especially with good robustness for environmental influence cases. Meanwhile, the method proposed in this paper can well solve the weakness issues of conventional welding quality detection technologies.

49 citations

Journal ArticleDOI
TL;DR: In this paper, a fully automated flux cored arc welding process with bead tempering can be used in repair welding instead of manual metal arc welding in order to eliminate the use of post weld heat treatment.

49 citations

Journal ArticleDOI
TL;DR: In this article, the welding of duplex stainless steels has been reassessed by questioning traditional requirements of the weld metal and/or the heat affected zone (HAZ) using thin foil transmission electron microscopy (TEM).

49 citations

Patent
03 Nov 1948

49 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202396
2022186
2021303
2020685
2019807
2018922