Plasma Diagnostics of Arc during MIG Welding of Aluminum

Manabu Tanaka

doi:10.4028/www.scientific.net/MSF.783-786.2828

Paper Titles

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Evaluation of the Corrosion Resistant Weld Cladding Deposited by the TIG Cold Wire Feed Process
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Hardness Prediction for Temper Bead Welding of Non-Consistent Layer Technique
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HomeMaterials Science ForumMaterials Science Forum Vols. 783-786Plasma Diagnostics of Arc during MIG Welding of...

Plasma Diagnostics of Arc during MIG Welding of Aluminum

Abstract:

In this study, distributions of temperature and metal vapor during MIG welding of aluminum are obtained. Since a droplet forms and detaches at a tip of wire, and pass through the arc plasma during MIG welding, dynamic plasma diagnostics are demanded. This study aims to develop method for measuring dynamical variation of two-dimensional distribution of temperature and metal vapor concentration in the arc through optical measurement and to analyze behavior of the metal vapor in MIG welding. As the results, in MIG welding of aluminum, the arc plasma has double structure consisting of high temperature region apart from the arc axis and low temperature region near the arc axis due to influence of the aluminum vapor. Furthermore, the low temperature region near the arc axis occurs because the arc plasma is cooled especially through the intensive radiation loss caused by high concentration of the metal vapor.

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Periodical:

Materials Science Forum (Volumes 783-786)

Pages:

2828-2832

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.783-786.2828

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Online since:

May 2014

Authors:

Manabu Tanaka

Keywords:

Aluminum (Al), MIG Welding, Numerical Simulation, Plasma Diagnostic

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References

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