Topic
Electric resistance welding
About: Electric resistance welding is a research topic. Over the lifetime, 16761 publications have been published within this topic receiving 154851 citations.
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TL;DR: In this article, an electrically assisted friction stir welding (FSW) system has been developed, which enables a local electrical current field moving with the FSW tool without requiring the tool to be one of the electrodes.
102 citations
TL;DR: In this paper, the authors reviewed the development of underwater wet welding processes over the past 25 years and developed welding consumables with improved control over diffusible hydrogen and porosity.
Abstract: Developments in underwater wet welding processes over the past 25 years are reviewed. Shielded metal arc welding with rutile base coated electrodes is still by far the most common wet welding process in use. Research and development of wet welding electrodes has led to improvements in the control of hydrogen content, porosity, chemical composition, and microstructure of the weld metal. Additional work is required to develop welding consumables with improved control over diffusible hydrogen and porosity. Development of techniques such as temper bead welding has allowed successful wet welding repairs on steels having carbon equivalents greater than the traditional limit of 0.40. Alternative wet welding processes such as flux cored arc welding and friction welding are under development, but have yet to become widely accepted.
102 citations
TL;DR: In this paper, a criterion for solidification cracking in laser welding of 2024 aluminum alloy was proposed. But the authors did not consider non-steady conditions and interpreted with respect to the loci of relevant isotherms and the length of the vulnerable zone in the melt pool.
102 citations
TL;DR: In this paper, the stability condition of a hybrid laser CO 2 -GMAW welding process was investigated by analyzing the influence of several process parameters, such as the filler metal transfer mode on the stability of the whole process.
102 citations
TL;DR: In this paper, a fully coupled thermo-mechanical model of the friction stir welding process is presented, which shows that the rotation of the shoulder can accelerate the material flow behavior near the top surface.
Abstract: This paper presents a new developed fully coupled thermo-mechanical model of the friction stir welding process. Results indicate that the rotation of the shoulder can accelerate the material flow behavior near the top surface. The material deformation and the temperature field can have relations with the microstructural evolution. The texture of the appearance of the friction stir welds can correlate well with the equivalent plastic strain distributions on the top surface. The temperature field in the friction stir welding process is approximately symmetric to the welding line. The material flows in different thicknesses are different. The shoulder can have a significant effect on material behaviors on the top surface, but this effect is greatly weakened when the material gets closer to the bottom surface of the welding plate.
102 citations