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Analyses of Influencing Factors of Pore Formation during Resistance Spot Welding of Magnesium Alloy

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Abstract:

In order to obtain better understanding of the resistance spot weldability of magnesium alloy and provide some foundational information for improving mechanical properties of the magnesium alloy joint, the influencing factors of pore formation during resistance spot welding of magnesium alloy, such as preexisting pores in base material, hydrogen rejection, shrinkage strain and expulsion, were analyzed; the corresponding restraining measures were discussed. The analyses reveal that the shrinkage strain and expulsion are important factors in contributing to the formation of pores during resistance spot welding of magnesium alloy, and that the pore formation could be suppressed by adjusting welding parameters.

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Periodical:

Advanced Materials Research (Volumes 291-294)

Pages:

2885-2888

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.291-294.2885

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Online since:

July 2011

Authors:

Yi Min Tu, Ran Feng Qiu, Hong Xin Shi, Hua Yu, Ke Ke Zhang

Keywords:

Magneisum Alloy, Mechanism, Pore, Resistance Spot Welding (RSW)

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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