Topic
Arc welding
About: Arc welding is a research topic. Over the lifetime, 25393 publications have been published within this topic receiving 168182 citations.
Papers published on a yearly basis
Papers
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05 Apr 1999TL;DR: In this article, two parts are welded together at a weld spot in a groove, and a spot adjacent the weld spot is heated simultaneously and independently of the welding so that the heating and welding form a heat-treated weld bead along the groove.
Abstract: Two parts are welded together at a weld spot in a groove. A spot adjacent the weld spot is heated simultaneously and independently of the welding so that the heating and welding form a heat-treated weld bead along the groove. Preheat treatment, postheat treatment, or both, may be used simultaneously with welding to maximize performance of the resulting weld joint. Preheat and postheat treatment may be performed using lasers while the welding may be performed by TIG welding or laser welding. The welding torch and preheat and postheat lasers are coplanarly aligned.
73 citations
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TL;DR: In this article, a robotic seam tracking system is developed to achieve robustness against optical noises such as arc glares, welding spatters, fume, and other unexpected brightness sources.
73 citations
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TL;DR: Results of a representative but limited selection of processes and materials show that mutagenic activity is a function of process and process parameters.
Abstract: Mutagenic activity of fume particles produced by metal arc welding on stainless steel (ss) is demonstrated by using the Salmonella/microsome mutagenicity test described by Ames et al., with strain TA100 (base-pair substitution) and TA98 (frame-shift reversion). Results of a representative but limited selection of processes and materials show that mutagenic activity is a function of process and process parameters. Welding on stainless steel produces particles that are mutagenic, whereas welding on mild steel (ms) produces particles that are not. Manual metal arc (MMA) welding on stainless steel produces particles of higher mutagenic activity than does metal inert gas (MIG) welding, and fume particles produced by MIG welding under short-arc transfer conditions are more mutagenic than those produced by spray-arc transfer. Further studies of welding fumes (both particles and gases) must be performed to determine process parameters of significance for the mutagenic activity.
73 citations
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TL;DR: In this article, the defect free joining of CP-copper to 304 stainless steel was performed by gas tungsten arc welding process using different filler materials and the results indicated the formation of defect free joint by using copper filler material.
72 citations
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TL;DR: In this article, a DCEN A-TIG welding was used to eliminate the welding porosity of 2219 aluminum alloy, which can reach the same mechanical performance index as VPTIG welding.
72 citations