Topic
Arc welding
About: Arc welding is a research topic. Over the lifetime, 25393 publications have been published within this topic receiving 168182 citations.
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Patent•
15 Jun 2000
TL;DR: In this paper, information pertaining to characteristics of metal welding electrode wire and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and selecting between operating modes in a welding system are encoded on welding wire and/or on other memory components such as bar code labels and tags, RFID cards, IC cards, and Touch Memory buttons.
Abstract: Information pertaining to characteristics of metal welding electrode wire and which characteristics are useful in connection with adjusting welding parameters in an arc welding process and/or selecting between operating modes in a welding system are encoded on welding wire and/or on other memory components such as bar code labels and tags, RFID cards and tags, IC cards, and Touch Memory buttons, and the memory device is scanned prior to and/or at the point of use of the welding wire for enabling tracking of product distribution, manual and/or automatic selection of an operating mode for the welding system, manual and/or automatic adjustment of welding parameters in a given operating mode, consumables inventory, and the like.
96 citations
Book•
01 Jan 2009
TL;DR: In this paper, the authors present a comprehensive numerical simulation of laser materials processing, including keyhole welding, keyhole cutting, and femtosecond laser Pulse Interactions with metals.
Abstract: Mathematics in Laser Processing.- Simulation of Laser Cutting.- Keyhole Welding: The Solid and Liquid Phases.- Laser Keyhole Welding: The Vapour Phase.- Basic Concepts of Laser Drilling.- Arc Welding and Hybrid Laser-Arc Welding.- Metallurgy of Welding and Hardening.- Laser Cladding.- Laser Forming.- Femtosecond Laser Pulse Interactions with Metals.- Comprehensive Numerical Simulation of Laser Materials Processing.
96 citations
Patent•
27 Feb 1990TL;DR: In this paper, a pulse current waveform control circuit is realized as a microcomputerized digital circuit, and the pulse arc current is controlled by the control operation of a program, in order to realize a desired current control by changing the program but without changing the circuit.
Abstract: A pulse welding apparatus such as a pulse arc welding apparatus or a short-circuiting arc welding apparatus utilizing pulse discharge, wherein there is provided a pulse current waveform control circuit which feeds a desired pulse arc current to the arc welding power source that supplies pulse arc current to the welding load unit, the circuit being so designed as to effect optimum welding without adjusting or changing the circuit components. Even under various welding conditions or environments, furthermore, it is allowed to prevent defective welding during the arc welding caused by the magnetic blow phenomenon and to prevent defective welding such as undercut or sputtering caused by disturbances in the welding torch. The pulse current waveform control circuit is realized as a microcomputerized digital circuit, and the pulse arc current is controlled by the control operation of a program, in order to realize a desired current control by changing the program but without changing the circuit. By utilizing the memory, furthermore, the optimum welding current waveform parameter or a desired arc length signal is learned during the first welding, and the arc length feedback control or the current waveform control is effected during the second welding using a program prepared with the thus learned welding current waveform parameter or the desired arc length signal as a reference. Thus, the molten mass is prevented from being erroneously removed by the magnetic blow phenomenon, and a change in the arc length is suppressed that is caused by disturbance in the welding torch, contributing to improving the welding quality under various welding environments.
95 citations
TL;DR: The alloy 5083 was welded by friction stir welding and inert-gas metal-arc welding (MIG-pulse), and the fatigue life of friction stir welds is 9-12 times longer than that of MIGpulse welds under R ǫ = 0.1 and fatigue characteristic values of each welds have been increased from 39.8MPa for MIG to 67.3 MPa for FSW as discussed by the authors.
95 citations
TL;DR: In this article, the effects of process parameters such as energy, standoff distance and coil geometry on the tensile shear strength of the welds are examined and the results of the microstructure and tensile strength tests are also reported.
94 citations