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 paper, the authors presented the first attempt to understand the Spark Plasma Sintering (SPS) mechanism from perspective of materials joining, and the experimental results showed that several joining processes were reflected well during SPS, involving micro-arc welding, electric resistance welding and diffusion welding.
50 citations
TL;DR: In this article, the authors measured the full 3D weld pool shape for the Gas Metal Arc Welding (GMAW) process, and examined the use of this information within numerical models.
49 citations
TL;DR: In this paper, a theoretical and experimental study of heat flow and solidification during the autogenous GTA welding of aluminum plates was carried out, where the theoretical part of the study involves the development of a computer model which describes three-dimensional heat flow during welding.
Abstract: A theoretical and experimental study of heat flow and solidification during the autogenous GTA welding of aluminum plates was carried out. The theoretical part of the study involves the development of a computer model which describes three-dimensional heat flow during welding. The model, though valid for any plate thickness, is particularly useful for moderately thick plates since both full- and partial-penetration welds can be considered. The experimental part of the study, on the other hand, involves the measurement of the thermal response of the workpiece during welding, and the examination of the configuration, grain structure, and subgrain structure of the fusion zone. The experimental results were compared with the calculated ones and the agreement was very good. With the help of the computer model, the effects of welding parameters on weld penetration in moderately thick plates were discussed. These parameters are the heat input per unit length of the weld, the thickness of the workpiece, the preheating of the workpiece, and the power-density distribution of the heat source.
49 citations
TL;DR: In this paper, a laser-assisted bi-metal-wire welding process was proposed to join zinc-coated steel sheets with aluminum samples in an overlapping as well as in a butt-joint configuration.
49 citations
TL;DR: In this paper, the impact of welding conditions on microstructures and mechanical properties of the welds was investigated for friction stir welding of advanced high strength steel (AHSS) sheets with tensile strength grades between 590 and 1180 N/mm−2.
Abstract: For friction stir welding (FSW) of advanced high strength steel (AHSS) sheets with tensile strength grades between 590 and 1180 N mm−2, the appropriate welding condition range and the influence of welding conditions on microstructures and mechanical properties of the welds were investigated. The appropriate welding conditions to avoid defects such as the incomplete consolidation at the bottom of the weld were obtained for the steel sheets up to 1180 N mm−2 grade. The higher tool rotation speed evidently resulted in the larger volume fraction of martensite and higher hardness in the stir zone (SZ), attributed to an increase in the peak temperature of its thermal cycle. The tensile strength of the weld joint was as high as that of the base metal for the steels up to 980 N mm−2 grade, but slightly lower than that of the base metal for the steel of 1180 N mm−2 grade due to the heat affected zone (HAZ) softening.
49 citations