On the Bead Geometry of Dissimilar Joints between SA516Gr65 and 304L Produced by TIG and A-TIG Welding

G. Venkatesan; Veerappan Muthupandi; N. Ashok

doi:10.4028/www.scientific.net/MSF.863.19

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HomeMaterials Science ForumMaterials Science Forum Vol. 863On the Bead Geometry of Dissimilar Joints between...

On the Bead Geometry of Dissimilar Joints between SA516Gr65 and 304L Produced by TIG and A-TIG Welding

Abstract:

Dissimilar autogenous square butt joints between SA516Gr65 and 304L steels were produced by TIG welding and A-TIG welding with SiO₂and TiO₂single component fluxes used in the as-received condition and dried at 150°C for one hour. Results showed that with A-TIG welding considerable improvement in depth of penetration could be achieved. Reversal of Marangoni convection could be the operative mechanism with the use of flux in the as-received condition while arc constriction could also contribute with the use of dried fluxes. Between the two single component fluxes viz., SiO₂and TiO₂ studied SiO₂ was found to be more effective in improving the depth of penetration.

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Periodical:

Materials Science Forum (Volume 863)

Pages:

19-22

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.863.19

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Online since:

August 2016

Authors:

G. Venkatesan, Veerappan Muthupandi*, N. Ashok

Keywords:

A-TIG Welding, Dissimilar Welding, Single Component Flux, Weld Bead Geometry

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