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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
24 Aug 1972
TL;DR: The method and system of the present invention minimizes weld spatter through control of short circuit current and through control over the short circuit and arc time intervals as discussed by the authors, which minimizes welding spatter.
Abstract: The method and system of the present invention minimizes weld spatter through control of the short circuit current and through control over the short circuit and arc time intervals.

53 citations

Patent
18 Jun 1971
TL;DR: An apparatus for controlling electric welding processes with consumable electrodes by generating electric pulses of the variation in the welding parameters, the voltage, current or mechanical vibration, in the workpiece is described in this article.
Abstract: An apparatus for controlling electric welding processes with consumable electrodes by generating electric pulses of the variation in the welding parameters, the voltage, current or mechanical vibration, in the workpiece. These variations which are characteristic for the melting during welding are picked up, transformed and supplied to a signaling device to furnish a statement on the transfer of the material which the welder uses to correctly guide the electrode.

53 citations

Journal ArticleDOI
TL;DR: In this paper, an experimental study of the ultrasonic welding of ceramics and metals using inserts is presented. But little difference in welding strength was found between the welds with the metal insert and the vaporized film.

53 citations

Journal ArticleDOI
TL;DR: In this paper, a semi-automatic gas tungsten arc welded joint in 3Cr steel was investigated in a CO2-containing environment, and the galvanic coupling effects theoretically derived from the corrosion current densities before and after coupling were in good agreement with the results of the immersion tests.

53 citations

Journal ArticleDOI
TL;DR: In this paper, the authors developed a unified arc electrode model that enables them to make predictions of the time development of molten drops from the welding wire in gas metal arc welding, where the wire is taken as the positive electrode, and the effects of surface tension, magnetic pinch forces, and convection within the drop are taken into account to predict drop detachment for any given arc current.
Abstract: We have developed a unified arc electrode model that enables us to make predictions of the time development of molten drops from the welding wire in gas metal arc welding. The wire is taken as the positive electrode, and the effects of surface tension, magnetic pinch forces, and convection within the drop are taken into account to predict drop detachment for any given arc current. For pure argon, we have previously predicted the sharp transition that is observed experimentally at about 300 A between globular transfer at low current, when drop diameters are larger than the wire diameter, and spray transfer, for currents above 300 A, when drop diameters are smaller than the wire diameter. In this paper, we predict that addition of 25% of CO/sub 2/ to the argon leads to an increase in the transition current to more than 325 A, also in agreement with published experimental results. For pure CO/sub 2/, we find a significantly different drop behavior due to the more constricted arc. Both small and large drops are produced, with many very small drops being produced successively between each large drop.

53 citations


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