Topic
Spot welding
About: Spot welding is a research topic. Over the lifetime, 12491 publications have been published within this topic receiving 89845 citations. The topic is also known as: Spot_welding.
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TL;DR: In this article, the effect of the tool penetration depth during welding, as well as the relative position of the materials used in the superimposed joints, when AA5052-AA6063 sheets samples were welded were analyzed, for both materials positions.
41 citations
TL;DR: In this paper, the microstructure and texture of the original and welded samples have also been investigated via scanning electron microscope (SEM), Electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM).
41 citations
TL;DR: Al6022-T4/Al7075-T6 welds were fabricated by refilling friction stir spot welding using different tool designs with identical welding parameters as mentioned in this paper, and cracks and voids were formed in the welds manufactured using a standard tool.
41 citations
TL;DR: In this paper, a new sonic emission indicator was introduced and compared to a commonly used emission count indicator, and a new method of spot weld strength estimation based on the two indicators was presented, which enables the development of improved RSW process control algorithms.
Abstract: Audible sound signals detected during the resistance spot welding (RSW) of zinc coated steels were investigated in order to assess their suitability for estimating the strength of the weld. A new sonic emission indicator was introduced and compared to a commonly used emission count indicator. A new method of spot weld strength estimation based on the two indicators is presented. The advantage of the method is that it makes it possible to establish the stage when the electrode is worn out. The method enables the development of improved RSW process control algorithms.
41 citations
TL;DR: In this paper, the relationship between welding current and mechanical properties was investigated and it was found that the formation of brittle intermetallic compounds in the weld fusion zone is the key governing factor for mechanical properties of dissimilar Al alloy/low carbon steel resistance spot welds.
Abstract: Resistance spot welding was used to join low carbon steel and A5250 Aluminum alloy sheets. Mechanical properties and failure behavior of the spot welds in terms of peak load, failure energy and failure mode, were evaluated using tensile- shear test. Relationship between welding current and mechanical properties was investigated. It was found that the formation of brittle intermetallic compounds in the weld fusion zone is the key governing factor for mechanical properties of dissimilar Al alloy/low carbon steel resistance spot weld. Increasing welding current, increases both peak load and energy absorption due to increasing overall bond area and transition in failure mode from interfacial to pullout failure mode.
41 citations