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Shielded metal arc welding

About: Shielded metal arc welding is a research topic. Over the lifetime, 4462 publications have been published within this topic receiving 40560 citations. The topic is also known as: manual metal arc welding & flux shielded arc welding.


Papers
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Journal Article

17 citations

Patent
17 May 2007
TL;DR: In this paper, a keyhole is formed on the surface of a material to be welded by irradiation of a laser beam and generating the arc between the electrode for the heat source of the arc and the material being welded.
Abstract: PROBLEM TO BE SOLVED: To provide equipment and a method for combined welding using jointly a laser and an arc by which high-quality weld zone where is free from the generation of weld defects such as porosity is obtained and also stable weld bead is formed. SOLUTION: By forming a fine and deep groove-like keyhole on the surface of a material to be welded by irradiation of a laser beam and generating the arc between the electrode for the heat source of the arc and the material to be welded, a molten pool is formed on the surface of the material to be welded. The keyhole and the molten pool are connected. The keyhole is shielded by laser shielding gas and the molten pool is shielded by are shielding gas. The laser shielding gas and the arc shielding gas are different gas. COPYRIGHT: (C)2009,JPO&INPIT

17 citations

Patent
12 Nov 1952

17 citations

Journal ArticleDOI
TL;DR: In this article, the formation of stainless steel microstructure on mild steel where produced in cladding deposits, and fusion boundary region were investigated using tungsten inert gas (TIG) arc, high current pulsed arc and constricted plasma arc.
Abstract: The discrete microstructural characterization and the formation of stainless steel layer on mild steel where produced in cladding deposits, and fusion boundary region were investigated using tungsten inert gas (TIG) arc, high current pulsed arc and constricted plasma arc. The experimental procedure involved making bead-on-plate method for controlled travel speed, employing filler metal by using tungsten inert gas arc, pulsed current gas tungsten arc and transferred plasma arc, with subsequent sectioning and examination of the reaction interface. For TIG arc cladding, using filler metal of small diameter the deposit does not become stainless steel, but on using 3.2 mm diameter filler metal it becomes stainless steel with less than 50% dilution. For pulsed arc cladding, the complete stainless steel is not obtained on account of the existence of an incomplete mixture, particularly at the fusion boundary region. However, on using a large diameter filler metal at a pulse frequency of 500 Hz, the complete stainless steel microstructure has been accomplished. The plasma arc cladding can be achieved in such a way that the conversion into stainless steel on the mild steel surface — which is the microstructures of cellular austenite in cladding deposit and cellular dendritic austenite containing δ or σ-phase in fusion boundary region — is possible irrespective of the melt penetration and the dilution. The following conditions were found to be beneficial for the formation of stainless steel microstructure layer on the mild steel: using large diameter filler metal, below 50% dilution, and further rendering arc localized and constricted.

17 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202368
2022108
202192
2020109
201979
2018111