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The Mechanism of Ultrasonic Vibration on Grain Refining and Degassing in GTA Spot Welding of Copper Joints

This paper examines the effect of ultrasonic vibration (USV) on grain size and interrupted porosity in Gas Tungsten Arc (GTA) spot-welded copper. Grain size was refined by perpendicularly attaching a transducer to the welded sheet and applying USV to the weld pool for a short time (0, 2, 4, and 6 s)...

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Detalles Bibliográficos
Autores principales: Al-Ezzi, Salih, Quan, Gaofeng, Elrayah, Adil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978114/
https://www.ncbi.nlm.nih.gov/pubmed/29735894
http://dx.doi.org/10.3390/ma11050737